3 thoughts on “Steel structure construction plan and technical base”
Clyde
The content of the technical intercourse of the steel structure construction plan
1, the steel structure production first performs samples, feeding and cutting. When putting samples and feeding, the amount of welded seam contraction remaining during the process of production and installation should be reserved according to the requirements of the process requirements. The amount of processing of cutting, planing and milling. After the inspection of various raw materials is passed, it can be cut. Before the gas cuts, the rust and dirt on the surface of the steel cutting area should be cleaned up. There should be no obvious concave or damage, and the depth of the scratches must not be greater than 0.5mm. When the parts of gas cutting or mechanical shearing, when marginal processing is required, the amount of planing shall not be less than 2.0mm; 3, when making holes, the accuracy and allowable deviation of the holes shall meet the specifications. When the allowable deviation exceeds the specifications, it is not allowed to be filled with a rigid block, and the pores can be re -made after welding with the barrier that match the mother material; 4. When welding The material, welding method, post -welding heat treatment, etc. will be evaluated by welding process, and the welding process shall be determined according to the assessment report; when welding, it shall not be used to fall off or welded in the welded welding and welded blocks and welded blocks and the melted burn. Welding case; 5, when using sand wheel polishing treatment, the grinding range should not be less than 4 times that of the bolt pore diameter. Sliding coefficient test, the friction surface of the test parts during transportation must not be damaged, and the processed friction surface must not have flying edges, burrs, welding scars or dirt loss.
Content: The submissions: production of steel structure components processing processes: material entering the warehouse inspection — putting -name — cutting holes -assembly -burial arc -correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — —Worge -welding -polishing and rust removal -painting -testing the library. This bottom content: 1. The production of steel structures first perform samples, feed and cutting. When putting samples and feeding, the weld shrinkage waste and cutting, cutting, shaving during the production and installation should be reserved according to the process requirements. The amount of processing of side and milling is equal. After the inspection of various raw materials is passed, it can be cut. Before the gas cuts, the rust and dirt on the surface of the steel cutting area should be cleaned up. There should be no obvious concave or damage, and the depth of the scratches must not be greater than 0.5mm. When the parts of gas cutting or mechanical shearing, when marginal processing is required, the amount of planing shall not be less than 2.0mm; 3, when making holes, the accuracy and allowable deviation of the holes shall meet the specifications. When the allowable deviation exceeds the specifications, it is not allowed to be filled with a rigid block, and the pores can be re -made after welding with the bars that match the mother material. The rust, burrs, dirt, ice and snow, etc. within the range of 30 ~ 50mm should be clear and clean, and the stitching of plate materials and profiles should be performed before assembly; the assembly assembly should be performed after the component assembly, welding correction, the assembly order should be based on the structure type type type type type type type type type type type type type type type type type type type type type should be based on structured type type type type type type type type type type type type type type type type type should be based on structured type type type type type type type type type type type type type type type type type should be based , Welding method and welding order and other factors. When assembling with a fixture, the mother material shall not be damaged when removing the fixture; the residual welding scars shall be ground and flat, and the top contact surface should be more than 75%of the area. The steel, welding materials, welding methods, after welding heat treatment, etc. of the steel, welding materials, welding methods, and after welding are used for the first time, and the welding process shall be determined according to the evaluation report; during welding Welds and welded welded cases. Welding wires and welding nails are removed before use of oil and rust. When welding, welders should abide by the welding process. They must not be freely applied to the arc on the mother material outside the welded tract. The welding angle is continuously applied at the corner of the welding angle. When a welding angle is cracking, the welders shall not deal with it without authorization. The reason should be found, and the repair process shall be processed. The number of renovations in the same part of the weld should not exceed twice. After welding, the welders should clean up the slag on the surface of the weld and the splash on both sides to check the appearance quality of the weld. After the inspection is qualified, the welded steel seal should be used for the welded seams and parts specified in the process; 5, the sand wheel polishing treatment When rubbing the surface, the grinding range should not be less than 4 times that of the bolt pore diameter. The polishing direction should be vertically vertically in the direction of the component. Noodles must not be damaged, and the frictional surface of the treatment must not have flying edges, burrs, welding scars, or dirt loss; 6, steel structure should be removed before coating. Hanging, the attachment should be good. After the painting is completed, the original editing number of the component should be marked on the component. The large component should indicate the weight, central position and positioning mark. 7, the surface of the steel before coating should be treated with rust removal. The surface of the surface of the chemical rust removal should be exposed. There must be no mistakes and omissions. 8, the brushes should be uniform, without obvious wrinkles, flowing pendants, and bubbles, good attachment, clear and neat color lines. 9, quality requirements: a, raw materials and finished products 1) Steel a variety, specifications, performance, etc. shall meet the current national product standards and design requirements. And according to the design requirements, the retransmission of mechanical performance is performed according to the thickness. B of steel’s thickness and allowable deviation shall meet the requirements of its product standards. c The surface of the steel should meet the current relevant standards of the state. The depth of the surface rust on the surface, the pole or scratch of the hemp point or scratch shall not be greater than the thickness of the thickness of the steel. There should be no defects such as flexion, slag. 2) Welding materials a welding materials, specifications, specifications, performance, etc. should meet the current national product standards and design requirements, and have complete quality qualification certification documents, Chinese signs and inspection reports. b The appearance of the electrode should not be dropped off, and the welding core rust should be rusted; the solder should not be tied to the moisture. 3) Connection with fastening standard parts a steel structure connection with high -strength hexagonal bolts connect to tight standard parts, ordinary bolts, rivets, self -modification nails, pull rivet anchor bolts, and nut Standard accessories, varieties, specifications, and performance should meet the current national product standards and design requirements. When the high -intensity bolts are exported to the factory, they should have a torque coefficient and tightening axial inspection report with the box. b high -strength large hexagonal bolts should also be tested in accordance with the specifications; high -strength bolts are connected to the part of the packaging box; the batch number, quantity and production date should be marked on the packaging box. On the surface of oil, rust and pollution should not occur, and threads should not be damaged. 4) The raw material performance adopted by the manufacturing of metal pressure plates a should meet product standards and design requirements. You have time to check online, the information is more,
Content: The submissions: production of steel structure components processing processes: material entering the warehouse inspection — putting -name — cutting holes -assembly -burial arc -correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — —Worge -welding -polishing and rust removal -painting -testing the library. This bottom content: 1. The production of steel structures first perform samples, feed and cutting. When putting samples and feeding, the weld shrinkage waste and cutting, cutting, shaving during the production and installation should be reserved according to the process requirements. The amount of processing of side and milling is equal. After the inspection of various raw materials is passed, it can be cut. Before the gas cuts, the rust and dirt on the surface of the steel cutting area should be cleaned up. There should be no obvious concave or damage, and the depth of the scratches must not be greater than 0.5mm. When the parts of gas cutting or mechanical shearing, when marginal processing is required, the amount of planing shall not be less than 2.0mm; 3, when making holes, the accuracy and allowable deviation of the holes shall meet the specifications. When the allowable deviation exceeds the specifications, it is not allowed to be filled with a rigid block, and the pores can be re -made after welding with the bars that match the mother material. The rust, burrs, dirt, ice and snow, etc. within the range of 30 ~ 50mm should be clear and clean, and the stitching of plate materials and profiles should be performed before assembly; the assembly assembly should be performed after the component assembly, welding correction, the assembly order should be based on the structure type type type type type type type type type type type type type type type type type type type type type should be based on structured type type type type type type type type type type type type type type type type type should be based on structured type type type type type type type type type type type type type type type type type should be based , Welding method and welding order and other factors. When assembling with a fixture, the mother material shall not be damaged when removing the fixture; the residual welding scars shall be ground and flat, and the top contact surface should be more than 75%of the area. The steel, welding materials, welding methods, after welding heat treatment, etc. of the steel, welding materials, welding methods, and after welding are used for the first time, and the welding process shall be determined according to the evaluation report; during welding Welds and welded welded cases. Welding wires and welding nails are removed before use of oil and rust. When welding, welders should abide by the welding process. They must not be freely applied to the arc on the mother material outside the welded tract. The welding angle is continuously applied at the corner of the welding angle. When a welding angle is cracking, the welders shall not deal with it without authorization. The reason should be found, and the repair process shall be processed. The number of renovations in the same part of the weld should not exceed twice. After welding, the welders should clean up the slag on the surface of the weld and the splash on both sides to check the appearance quality of the weld. After the inspection is qualified, the welded steel seal should be used for the welded seams and parts specified in the process; 5, the sand wheel polishing treatment When rubbing the surface, the grinding range should not be less than 4 times that of the bolt pore diameter. The polishing direction should be vertically vertically in the direction of the component. Noodles must not be damaged, and the frictional surface of the treatment must not have flying edges, burrs, welding scars, or dirt loss; 6, steel structure should be removed before coating. Hanging, the attachment should be good. After the painting is completed, the original editing number of the component should be marked on the component. The large component should indicate the weight, central position and positioning mark. 7, the surface of the steel before coating should be treated with rust removal. The surface of the surface of the chemical rust removal should be exposed. There must be no mistakes and omissions. 8, the brushes should be uniform, without obvious wrinkles, flowing pendants, and bubbles, good attachment, clear and neat color lines. 9, quality requirements: a, raw materials and finished products 1) Steel a variety, specifications, performance, etc. shall meet the current national product standards and design requirements. And according to the design requirements, the retransmission of mechanical performance is performed according to the thickness. B of steel’s thickness and allowable deviation shall meet the requirements of its product standards. c The surface of the steel should meet the current relevant standards of the state. The depth of the surface rust on the surface, the pole or scratch of the hemp point or scratch shall not be greater than the thickness of the thickness of the steel. There should be no defects such as flexion, slag. 2) Welding materials a welding materials, specifications, specifications, performance, etc. should meet the current national product standards and design requirements, and have complete quality qualification certification documents, Chinese signs and inspection reports. b The appearance of the electrode should not be dropped off, and the welding core rust should be rusted; the solder should not be tied to the moisture. 3) Connection with fastening standard parts a steel structure connection with high -strength hexagonal bolts connect to tight standard parts, ordinary bolts, rivets, self -modification nails, pull rivet anchor bolts, and nut Standard accessories, varieties, specifications, and performance should meet the current national product standards and design requirements. When the high -intensity bolts are exported to the factory, they should have a torque coefficient and tightening axial inspection report with the box. b high -strength large hexagonal bolts should also be tested in accordance with the specifications; high -strength bolts are connected to the part of the packaging box; the batch number, quantity and production date should be marked on the packaging box. On the surface of oil, rust and pollution should not occur, and threads should not be damaged. 4) Metal pressure plate a pressure plate manufacturing should meet product standards and design requirements. Production and installation technology base The conclusion: The production and installation of pressure metal plates processing process: installation preparation -installation of lines and caves of each door and cave Gully -Install the roof panel and roof lines and facilities -install the water drop pipe and the gum -end acceptance. The content of the bottom: 1, the production of pressure metal plates variety, materials, specifications, coating and appearance quality of the pressure type metal plates shall meet the design requirements; after the pressure of the pressure metal plate is formed after forming , The substrate must not have cracks; the surface of the board should be clean, oil -free and mud sand, and there should be no significant uneven and Zou folding in large areas. The coating or coating should be visible to the cracks, peeling, and scratches of the naked eye. 2, the installation of pressure metal plates The pressure -type metal plate should be carried out after the quality inspection and evaluation of the steel structure installation project meet the requirements; The laying of anticorrosive coatings and waterproof sealing materials should be intact, the number of connectors, the distance meet the design requirements and the current relevant national regulations; the appearance of the pressure metal plate should be flat, the connection is straight, and there should be no residual debris and dirt on the surface of the plate surface. Essence 3, Quality Requirements: a, making After forming a pressure metal plate, its substrate should not have cracks. The size of the metal board: The wave spacing is ± 2.0mm, the wave height (cross -sectional area is 70 ± 1.5mm; the cross -sectional area is 70 ± 2.0mm). The pressure -type metal board should be clean and there should be no obvious bumps and wrinkles. b, installation President -type metal plates, cold water boards and corner plates should be fixed, solid, anti -corrosive coating, and sealing materials. The number and spacing of the connection parts should meet the design and the relevant standards of the state. The distance between the screw center should not be greater than 420mm. The pressure metal plates should be reliable on the supporting parts, and the overlap length should meet the design requirements. The cross -section height is 375mm The cross -section height is 70, and the slope is 250mm; the slope is 1/10 200mm; the wall is generally 120mm. The installation of pressure metal should be flat and straight. There should be no construction residues and dirt on the surface of the plate. The eaves and the upper end of the wall should be straight, and there should not be an unsolvioing error hole. The allowable deviation of the installation of metal plates: The parallelism of the eaves and the ridge of the roof 12.0mm Advanced plate ending is 6.0mm steel structure construction plan
. Comprehensive description In the square meter, the main body is a three -layer structure of the three -layer steel frame structure, and the total height of the eaves is 19 meters. The frame steel column is a welded box -type column, the steel beam is a welding H -shaped steel beam, the floor is a pressure -type steel plate and concrete overlapping floor, and the outer wall is a pressure -type color plate. The main steel component material is q345, and the barrier uses Q235 C -type thin -walled steel. The construction scope of this project includes the production and on -site installation of the steel structure system. . Construction preparation 1. Organize relevant engineering management and technical personnel to review the design drawings. For places where the drawing is not clear and difficult in construction, it is necessary to make the procedures for changing the certification with the design unit. 2. According to the construction drawings, the main construction plan of the project is formulated in combination with the equipment and technical conditions of the unit, and the material plan is proposed. 3. The performance of the mechanical and detection equipment used in steel structure engineering is inspected to ensure that the working status of various equipment in the construction process is good and complete. 4. The materials used in steel structure engineering should be inspected in accordance with the provisions of the current national standards in addition to the quality certificate, which can be used after compliance with the standards. 5. Before the construction of steel structure projects, the construction staff of each process should conduct necessary job training, and conduct technical, quality, and safety bases to prevent safety and quality accidents. 6. The steel structure must be tested and reasonably stacked to the scene in order to facilitate the smooth installation of the component after entering the scene. 7. Before hanging on the spot, the cross line should be played on the pillar burial parts, and the elevation control point should be set up at the same time. The field venue should be calmed down, no water accumulation, and lanes must be reserved. . Construction progress arrangements In July 8, 2002, 2002 to December 28, 2002, the steel structure engineering section guarantees the construction period on the basis of civil construction, arranges construction progress, organizes construction, and specifically See the construction schedule for the progress plan. . Labor Plan The steel structure main project construction Labor plan -level work types are invested in the number of labor personnel during the construction stage 10 4. Correction workers 4. Drilling workers 6, spray painter 6, driver 2 2. Electrician 2 2. Horgeon 2 8. Auxiliary workers 6 8. Board installation 16 Equipment Maintenance workers 1 Five. Main construction machinery and equipment The main construction machinery and equipment of the steel structure project The number of serial machine names 1 CNC direct strip multi -headed cutting machine 2; 2 steel automatic setting machine; 3 -door buried arc automatic welding welding 2; 4 half -automatic welding 2; 5 -h type steel correction machine 2; 6 -end face milling 1; 7 shower ball removal machine 1; 8 rocker arm drill 2; 9 shear plate 2; 10 carbon dioxide gas protection welding 3; 11 carbon arc gas Plane 1; 12 belt saw 1; 13,000 energy milling machines 1; 14 50 tons crane 2; 15 welding machine 24; 16 torque wrench 6; 17 5 -ton inverter 2 18 gas welding 2 . Steel structure production and installation construction method steel structure production: This Steel structure of this engineering steel structure adopts welding box type column, steel beams are welded H -shaped steel, the number of components is large, and the amount of engineering is large. Our company The advanced special box -type column production equipment is made of electric slag pressure welding and welding H -shaped steel production line. The component plates are automatically cut into the computer’s feeding and fast and accurate. The welding of the panel and the abdomen is automatically welded by door -type buried arc to ensure the welding quality. (1). The processing and production of the box -shaped column The box -shaped column is welded by four steel plates. The production process is roughly the same as that of the welded H -shaped steel. The boxes of the box -shaped pillar use CNC flame cutting machine for column cutting. The opening method of the opening of the slopes is carbon -shaped to cut the K -shaped slope. It is necessary to prepare the assembly fetal membrane. The assembly sequence is: first of all, the above cover is the benchmark, and then release the assembly line of the horizontal partition and the side plate, the U -shaped group stands, and finally the assembly of the lower cover is completed. The buried arc is automatically welded, the welding of the stubborn plate is manually welded by the welding machine, and the last side of the partition welding the stabbing pressure welding method is performed. The welding setting is set. After the welding of the box -shaped column is completed, it is directly corrected, and the end -to -end cutting machine is cut. The coating of the box -shaped column is strictly removed in accordance with the standard rust and brushing oil. Box -type column production assembly is the key. The assembly process is as follows: 1. First of all, the above cover plate is used as the assembly benchmark. On its assembly surface, the partitions and side plate assembly are released according to the requirements of the construction diagram, and the sample signs are used. 2. First assemble the upper cover and partitions, and carry on the tire mold. After the assembly is assembled, the welding party must be applied to perform the lane process. 3. Before the abdomen is assembled, check the flatness of the abdomen. In the assembly, use a direction to assemble. First, position the middle part of the center, and then locate the abdominal plate. 4. The overall assembly assembly of the box structure is performed after the U -shaped structure is completed. First, the edge of the U -shaped structure of the abdomen plate is corrected to make it uneven u003Cl/1000, and then release the abdomen assembly and positioning line on the lower cover, flip and U -shaped type Structural assembly, adopt a direction assembly, positioning point welding adopts symmetrical welding method. 5. The last welding of the partition is welded with electric residue pressure, and the pressure welding of electric residue pressure is used for special equipment. ). Processing and production of welding H -shaped steel beams processing processes: 1. Put the feeding graph ① This process is the material inspection part. Quality inspection. ② Quality testing standards: This shall meet the design requirements and the current national standards. ③ inspection method: The inspection steel quality certificate and retest report, and checked models and specifications with steel tape measures and jermels. 2. Put sample, number ① When placing the sample line, it should be clearly indicated that the positioning of the assembly label, the screwhole label, the position direction of the enhancement board, the tilt marker and the center line, the reference line and the inspection line, and make a model if necessary to make a model plate. Essence ② Pay attention to reserved production, welding the waste amount during installation; cutting, planing and milling processing waste; installation reserved size requirements. ③ Before the line is drawn, the bending and deformation of the material should be corrected. ④ The allowable deviation of the sample and the model of the sample and the model is shown in the table below: This allowed deviation The parallel line distance and segment size ± 0.5mm , Level ± 0.5mm Pole spacing ± 0.5mm The allowable deviation of the model angle of processing model ± 20 ‘ ⑤ Materials are shown below: project allowed deviation, shape size ± 1.0, 0, ± 1.0, and size, ± 1.0, and size, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,,, ± 1.0,,, ± 1.0,,, ± 1.0,,,,, The hole distance is ± 0.5 ⑥ Quality testing sound wave exploring test, and the detection level is second.
The content of the technical intercourse of the steel structure construction plan
1, the steel structure production first performs samples, feeding and cutting. When putting samples and feeding, the amount of welded seam contraction remaining during the process of production and installation should be reserved according to the requirements of the process requirements. The amount of processing of cutting, planing and milling. After the inspection of various raw materials is passed, it can be cut. Before the gas cuts, the rust and dirt on the surface of the steel cutting area should be cleaned up. There should be no obvious concave or damage, and the depth of the scratches must not be greater than 0.5mm. When the parts of gas cutting or mechanical shearing, when marginal processing is required, the amount of planing shall not be less than 2.0mm;
3, when making holes, the accuracy and allowable deviation of the holes shall meet the specifications. When the allowable deviation exceeds the specifications, it is not allowed to be filled with a rigid block, and the pores can be re -made after welding with the barrier that match the mother material;
4. When welding The material, welding method, post -welding heat treatment, etc. will be evaluated by welding process, and the welding process shall be determined according to the assessment report; when welding, it shall not be used to fall off or welded in the welded welding and welded blocks and welded blocks and the melted burn. Welding case;
5, when using sand wheel polishing treatment, the grinding range should not be less than 4 times that of the bolt pore diameter. Sliding coefficient test, the friction surface of the test parts during transportation must not be damaged, and the processed friction surface must not have flying edges, burrs, welding scars or dirt loss.
Content:
The submissions: production of steel structure components
processing processes: material entering the warehouse inspection — putting -name — cutting holes -assembly -burial arc -correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — —Worge -welding -polishing and rust removal -painting -testing the library.
This bottom content:
1. The production of steel structures first perform samples, feed and cutting. When putting samples and feeding, the weld shrinkage waste and cutting, cutting, shaving during the production and installation should be reserved according to the process requirements. The amount of processing of side and milling is equal. After the inspection of various raw materials is passed, it can be cut. Before the gas cuts, the rust and dirt on the surface of the steel cutting area should be cleaned up. There should be no obvious concave or damage, and the depth of the scratches must not be greater than 0.5mm. When the parts of gas cutting or mechanical shearing, when marginal processing is required, the amount of planing shall not be less than 2.0mm;
3, when making holes, the accuracy and allowable deviation of the holes shall meet the specifications. When the allowable deviation exceeds the specifications, it is not allowed to be filled with a rigid block, and the pores can be re -made after welding with the bars that match the mother material. The rust, burrs, dirt, ice and snow, etc. within the range of 30 ~ 50mm should be clear and clean, and the stitching of plate materials and profiles should be performed before assembly; the assembly assembly should be performed after the component assembly, welding correction, the assembly order should be based on the structure type type type type type type type type type type type type type type type type type type type type type should be based on structured type type type type type type type type type type type type type type type type type should be based on structured type type type type type type type type type type type type type type type type type should be based , Welding method and welding order and other factors. When assembling with a fixture, the mother material shall not be damaged when removing the fixture; the residual welding scars shall be ground and flat, and the top contact surface should be more than 75%of the area. The steel, welding materials, welding methods, after welding heat treatment, etc. of the steel, welding materials, welding methods, and after welding are used for the first time, and the welding process shall be determined according to the evaluation report; during welding Welds and welded welded cases. Welding wires and welding nails are removed before use of oil and rust. When welding, welders should abide by the welding process. They must not be freely applied to the arc on the mother material outside the welded tract. The welding angle is continuously applied at the corner of the welding angle. When a welding angle is cracking, the welders shall not deal with it without authorization. The reason should be found, and the repair process shall be processed. The number of renovations in the same part of the weld should not exceed twice. After welding, the welders should clean up the slag on the surface of the weld and the splash on both sides to check the appearance quality of the weld. After the inspection is qualified, the welded steel seal should be used for the welded seams and parts specified in the process;
5, the sand wheel polishing treatment When rubbing the surface, the grinding range should not be less than 4 times that of the bolt pore diameter. The polishing direction should be vertically vertically in the direction of the component. Noodles must not be damaged, and the frictional surface of the treatment must not have flying edges, burrs, welding scars, or dirt loss;
6, steel structure should be removed before coating. Hanging, the attachment should be good. After the painting is completed, the original editing number of the component should be marked on the component. The large component should indicate the weight, central position and positioning mark.
7, the surface of the steel before coating should be treated with rust removal. The surface of the surface of the chemical rust removal should be exposed. There must be no mistakes and omissions.
8, the brushes should be uniform, without obvious wrinkles, flowing pendants, and bubbles, good attachment, clear and neat color lines.
9, quality requirements:
a, raw materials and finished products
1) Steel
a variety, specifications, performance, etc. shall meet the current national product standards and design requirements. And according to the design requirements, the retransmission of mechanical performance is performed according to the thickness.
B of steel’s thickness and allowable deviation shall meet the requirements of its product standards.
c The surface of the steel should meet the current relevant standards of the state. The depth of the surface rust on the surface, the pole or scratch of the hemp point or scratch shall not be greater than the thickness of the thickness of the steel. There should be no defects such as flexion, slag.
2) Welding materials
a welding materials, specifications, specifications, performance, etc. should meet the current national product standards and design requirements, and have complete quality qualification certification documents, Chinese signs and inspection reports.
b The appearance of the electrode should not be dropped off, and the welding core rust should be rusted; the solder should not be tied to the moisture.
3) Connection with fastening standard parts
a steel structure connection with high -strength hexagonal bolts connect to tight standard parts, ordinary bolts, rivets, self -modification nails, pull rivet anchor bolts, and nut Standard accessories, varieties, specifications, and performance should meet the current national product standards and design requirements. When the high -intensity bolts are exported to the factory, they should have a torque coefficient and tightening axial inspection report with the box.
b high -strength large hexagonal bolts should also be tested in accordance with the specifications; high -strength bolts are connected to the part of the packaging box; the batch number, quantity and production date should be marked on the packaging box. On the surface of oil, rust and pollution should not occur, and threads should not be damaged.
4) The raw material performance adopted by the manufacturing of metal pressure plates
a should meet product standards and design requirements. You have time to check online, the information is more,
Content:
The submissions: production of steel structure components
processing processes: material entering the warehouse inspection — putting -name — cutting holes -assembly -burial arc -correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — correction — —Worge -welding -polishing and rust removal -painting -testing the library.
This bottom content:
1. The production of steel structures first perform samples, feed and cutting. When putting samples and feeding, the weld shrinkage waste and cutting, cutting, shaving during the production and installation should be reserved according to the process requirements. The amount of processing of side and milling is equal. After the inspection of various raw materials is passed, it can be cut. Before the gas cuts, the rust and dirt on the surface of the steel cutting area should be cleaned up. There should be no obvious concave or damage, and the depth of the scratches must not be greater than 0.5mm. When the parts of gas cutting or mechanical shearing, when marginal processing is required, the amount of planing shall not be less than 2.0mm;
3, when making holes, the accuracy and allowable deviation of the holes shall meet the specifications. When the allowable deviation exceeds the specifications, it is not allowed to be filled with a rigid block, and the pores can be re -made after welding with the bars that match the mother material. The rust, burrs, dirt, ice and snow, etc. within the range of 30 ~ 50mm should be clear and clean, and the stitching of plate materials and profiles should be performed before assembly; the assembly assembly should be performed after the component assembly, welding correction, the assembly order should be based on the structure type type type type type type type type type type type type type type type type type type type type type should be based on structured type type type type type type type type type type type type type type type type type should be based on structured type type type type type type type type type type type type type type type type type should be based , Welding method and welding order and other factors. When assembling with a fixture, the mother material shall not be damaged when removing the fixture; the residual welding scars shall be ground and flat, and the top contact surface should be more than 75%of the area. The steel, welding materials, welding methods, after welding heat treatment, etc. of the steel, welding materials, welding methods, and after welding are used for the first time, and the welding process shall be determined according to the evaluation report; during welding Welds and welded welded cases. Welding wires and welding nails are removed before use of oil and rust. When welding, welders should abide by the welding process. They must not be freely applied to the arc on the mother material outside the welded tract. The welding angle is continuously applied at the corner of the welding angle. When a welding angle is cracking, the welders shall not deal with it without authorization. The reason should be found, and the repair process shall be processed. The number of renovations in the same part of the weld should not exceed twice. After welding, the welders should clean up the slag on the surface of the weld and the splash on both sides to check the appearance quality of the weld. After the inspection is qualified, the welded steel seal should be used for the welded seams and parts specified in the process;
5, the sand wheel polishing treatment When rubbing the surface, the grinding range should not be less than 4 times that of the bolt pore diameter. The polishing direction should be vertically vertically in the direction of the component. Noodles must not be damaged, and the frictional surface of the treatment must not have flying edges, burrs, welding scars, or dirt loss;
6, steel structure should be removed before coating. Hanging, the attachment should be good. After the painting is completed, the original editing number of the component should be marked on the component. The large component should indicate the weight, central position and positioning mark.
7, the surface of the steel before coating should be treated with rust removal. The surface of the surface of the chemical rust removal should be exposed. There must be no mistakes and omissions.
8, the brushes should be uniform, without obvious wrinkles, flowing pendants, and bubbles, good attachment, clear and neat color lines.
9, quality requirements:
a, raw materials and finished products
1) Steel
a variety, specifications, performance, etc. shall meet the current national product standards and design requirements. And according to the design requirements, the retransmission of mechanical performance is performed according to the thickness.
B of steel’s thickness and allowable deviation shall meet the requirements of its product standards.
c The surface of the steel should meet the current relevant standards of the state. The depth of the surface rust on the surface, the pole or scratch of the hemp point or scratch shall not be greater than the thickness of the thickness of the steel. There should be no defects such as flexion, slag.
2) Welding materials
a welding materials, specifications, specifications, performance, etc. should meet the current national product standards and design requirements, and have complete quality qualification certification documents, Chinese signs and inspection reports.
b The appearance of the electrode should not be dropped off, and the welding core rust should be rusted; the solder should not be tied to the moisture.
3) Connection with fastening standard parts
a steel structure connection with high -strength hexagonal bolts connect to tight standard parts, ordinary bolts, rivets, self -modification nails, pull rivet anchor bolts, and nut Standard accessories, varieties, specifications, and performance should meet the current national product standards and design requirements. When the high -intensity bolts are exported to the factory, they should have a torque coefficient and tightening axial inspection report with the box.
b high -strength large hexagonal bolts should also be tested in accordance with the specifications; high -strength bolts are connected to the part of the packaging box; the batch number, quantity and production date should be marked on the packaging box. On the surface of oil, rust and pollution should not occur, and threads should not be damaged.
4) Metal pressure plate
a pressure plate manufacturing should meet product standards and design requirements. Production and installation technology base
The conclusion: The production and installation of pressure metal plates
processing process: installation preparation -installation of lines and caves of each door and cave Gully -Install the roof panel and roof lines and facilities -install the water drop pipe and the gum -end acceptance.
The content of the bottom:
1, the production of pressure metal plates
variety, materials, specifications, coating and appearance quality of the pressure type metal plates shall meet the design requirements; after the pressure of the pressure metal plate is formed after forming , The substrate must not have cracks; the surface of the board should be clean, oil -free and mud sand, and there should be no significant uneven and Zou folding in large areas. The coating or coating should be visible to the cracks, peeling, and scratches of the naked eye.
2, the installation of pressure metal plates
The pressure -type metal plate should be carried out after the quality inspection and evaluation of the steel structure installation project meet the requirements; The laying of anticorrosive coatings and waterproof sealing materials should be intact, the number of connectors, the distance meet the design requirements and the current relevant national regulations; the appearance of the pressure metal plate should be flat, the connection is straight, and there should be no residual debris and dirt on the surface of the plate surface. Essence
3, Quality Requirements:
a, making
After forming a pressure metal plate, its substrate should not have cracks.
The size of the metal board: The wave spacing is ± 2.0mm, the wave height (cross -sectional area is 70 ± 1.5mm; the cross -sectional area is 70 ± 2.0mm).
The pressure -type metal board should be clean and there should be no obvious bumps and wrinkles.
b, installation
President -type metal plates, cold water boards and corner plates should be fixed, solid, anti -corrosive coating, and sealing materials. The number and spacing of the connection parts should meet the design and the relevant standards of the state. The distance between the screw center should not be greater than 420mm.
The pressure metal plates should be reliable on the supporting parts, and the overlap length should meet the design requirements.
The cross -section height is 375mm
The cross -section height is 70, and the slope is 250mm; the slope is 1/10 200mm; the wall is generally 120mm.
The installation of pressure metal should be flat and straight. There should be no construction residues and dirt on the surface of the plate. The eaves and the upper end of the wall should be straight, and there should not be an unsolvioing error hole.
The allowable deviation of the installation of metal plates:
The parallelism of the eaves and the ridge of the roof 12.0mm
Advanced plate ending is 6.0mm
steel structure construction plan
. Comprehensive description
In the square meter, the main body is a three -layer structure of the three -layer steel frame structure, and the total height of the eaves is 19 meters. The frame steel column is a welded box -type column, the steel beam is a welding H -shaped steel beam, the floor is a pressure -type steel plate and concrete overlapping floor, and the outer wall is a pressure -type color plate. The main steel component material is q345, and the barrier uses Q235 C -type thin -walled steel. The construction scope of this project includes the production and on -site installation of the steel structure system.
. Construction preparation
1. Organize relevant engineering management and technical personnel to review the design drawings. For places where the drawing is not clear and difficult in construction, it is necessary to make the procedures for changing the certification with the design unit.
2. According to the construction drawings, the main construction plan of the project is formulated in combination with the equipment and technical conditions of the unit, and the material plan is proposed.
3. The performance of the mechanical and detection equipment used in steel structure engineering is inspected to ensure that the working status of various equipment in the construction process is good and complete.
4. The materials used in steel structure engineering should be inspected in accordance with the provisions of the current national standards in addition to the quality certificate, which can be used after compliance with the standards.
5. Before the construction of steel structure projects, the construction staff of each process should conduct necessary job training, and conduct technical, quality, and safety bases to prevent safety and quality accidents.
6. The steel structure must be tested and reasonably stacked to the scene in order to facilitate the smooth installation of the component after entering the scene.
7. Before hanging on the spot, the cross line should be played on the pillar burial parts, and the elevation control point should be set up at the same time. The field venue should be calmed down, no water accumulation, and lanes must be reserved.
. Construction progress arrangements
In July 8, 2002, 2002 to December 28, 2002, the steel structure engineering section guarantees the construction period on the basis of civil construction, arranges construction progress, organizes construction, and specifically See the construction schedule for the progress plan.
. Labor Plan
The steel structure main project construction Labor plan
-level work types are invested in the number of labor personnel during the construction stage
10 4. Correction workers 4. Drilling workers 6, spray painter 6, driver 2 2. Electrician 2 2. Horgeon 2 8. Auxiliary workers 6 8. Board installation 16 Equipment Maintenance workers 1
Five. Main construction machinery and equipment
The main construction machinery and equipment of the steel structure project
The number of serial machine names
1 CNC direct strip multi -headed cutting machine 2; 2 steel automatic setting machine; 3 -door buried arc automatic welding welding 2; 4 half -automatic welding 2; 5 -h type steel correction machine 2; 6 -end face milling 1; 7 shower ball removal machine 1; 8 rocker arm drill 2; 9 shear plate 2; 10 carbon dioxide gas protection welding 3; 11 carbon arc gas Plane 1; 12 belt saw 1; 13,000 energy milling machines 1; 14 50 tons crane 2; 15 welding machine 24; 16 torque wrench 6; 17 5 -ton inverter 2
18 gas welding 2
. Steel structure production and installation construction method
steel structure production:
This Steel structure of this engineering steel structure adopts welding box type column, steel beams are welded H -shaped steel, the number of components is large, and the amount of engineering is large. Our company The advanced special box -type column production equipment is made of electric slag pressure welding and welding H -shaped steel production line. The component plates are automatically cut into the computer’s feeding and fast and accurate. The welding of the panel and the abdomen is automatically welded by door -type buried arc to ensure the welding quality.
(1). The processing and production of the box -shaped column
The box -shaped column is welded by four steel plates. The production process is roughly the same as that of the welded H -shaped steel.
The boxes of the box -shaped pillar use CNC flame cutting machine for column cutting. The opening method of the opening of the slopes is carbon -shaped to cut the K -shaped slope. It is necessary to prepare the assembly fetal membrane. The assembly sequence is: first of all, the above cover is the benchmark, and then release the assembly line of the horizontal partition and the side plate, the U -shaped group stands, and finally the assembly of the lower cover is completed. The buried arc is automatically welded, the welding of the stubborn plate is manually welded by the welding machine, and the last side of the partition welding the stabbing pressure welding method is performed. The welding setting is set. After the welding of the box -shaped column is completed, it is directly corrected, and the end -to -end cutting machine is cut. The coating of the box -shaped column is strictly removed in accordance with the standard rust and brushing oil. Box -type column production assembly is the key. The assembly process is as follows:
1. First of all, the above cover plate is used as the assembly benchmark. On its assembly surface, the partitions and side plate assembly are released according to the requirements of the construction diagram, and the sample signs are used.
2. First assemble the upper cover and partitions, and carry on the tire mold. After the assembly is assembled, the welding party must be applied to perform the lane process.
3. Before the abdomen is assembled, check the flatness of the abdomen. In the assembly, use a direction to assemble. First, position the middle part of the center, and then locate the abdominal plate.
4. The overall assembly assembly of the box structure is performed after the U -shaped structure is completed. First, the edge of the U -shaped structure of the abdomen plate is corrected to make it uneven u003Cl/1000, and then release the abdomen assembly and positioning line on the lower cover, flip and U -shaped type Structural assembly, adopt a direction assembly, positioning point welding adopts symmetrical welding method.
5. The last welding of the partition is welded with electric residue pressure, and the pressure welding of electric residue pressure is used for special equipment.
). Processing and production of welding H -shaped steel beams
processing processes:
1. Put the feeding graph
① This process is the material inspection part. Quality inspection.
② Quality testing standards:
This shall meet the design requirements and the current national standards.
③ inspection method:
The inspection steel quality certificate and retest report, and checked models and specifications with steel tape measures and jermels.
2. Put sample, number
① When placing the sample line, it should be clearly indicated that the positioning of the assembly label, the screwhole label, the position direction of the enhancement board, the tilt marker and the center line, the reference line and the inspection line, and make a model if necessary to make a model plate. Essence
② Pay attention to reserved production, welding the waste amount during installation; cutting, planing and milling processing waste; installation reserved size requirements.
③ Before the line is drawn, the bending and deformation of the material should be corrected.
④ The allowable deviation of the sample and the model of the sample and the model is shown in the table below:
This allowed deviation
The parallel line distance and segment size ± 0.5mm
, Level ± 0.5mm
Pole spacing ± 0.5mm
The allowable deviation of the model angle of processing model ± 20 ‘
⑤ Materials are shown below:
project allowed deviation, shape size ± 1.0, 0, ± 1.0, and size, ± 1.0, and size, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,, ± 1.0,,, ± 1.0,,, ± 1.0,,, ± 1.0,,,,, The hole distance is ± 0.5
⑥ Quality testing sound wave exploring test, and the detection level is second.