CN104196164A - Giant cruciform combination column and manufacturing method thereof - Google Patents
Giant cruciform combination column and manufacturing method thereof Download PDFInfo
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- CN104196164A CN104196164A CN201410440782.0A CN201410440782A CN104196164A CN 104196164 A CN104196164 A CN 104196164A CN 201410440782 A CN201410440782 A CN 201410440782A CN 104196164 A CN104196164 A CN 104196164A
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Abstract
The invention discloses a giant cruciform combination column which comprises two pieces of T-shaped steel and a pieces of I-shaped steel, wherein the T-shaped steel is mounted at two sides of the I-shaped steel so as to form a cruciform column body structure with side plates; the upper part, the middle and the lower part of the column body structure are respectively provided with two layers of stiffening plates; studs are arranged on the side plates of the column body structure; corbels are arranged at the parts, connected with the stiffening plates, of the I-shaped steel. The invention further discloses a manufacturing method of the giant cruciform combination column. Based on the giant cruciform combination column and the manufacturing method thereof, the structure of the column is simplified to a maximum extent while the load-bearing capacity of the column is ensured, the raw materials and the cost are saved, and the effective usable area of a building is increased; the self-weight of the structure is reduced, and thus the structural seismic response is reduced.
Description
Technical field
The present invention relates to the preparation method of a kind of steel work and steel work, be specifically related to a kind of huge cross coupled column and preparation method thereof.
Background technology
Greenery patches, Wuhan is centered close to Binjiang business district, Wuchang nucleus, faces each other across the river with century-old outbeach, Hankow, and geographical position is very superior, is the key area of Wuhan new round urban development.Center, greenery patches, Wuhan is made up of handle official business auxiliary building, a building block of flats and annex of a king-tower building, building, a building, wherein king-tower building basement 6 floor, and 125 layers on the ground, 32.3 ten thousand square metres of superstructure areas, total building height is 606 meters.Be a comprehensive building that integrates office, exhibitions, hotel, sightseeing amusement, business etc., after building up, will become Wuhan Super High landmark.
High building framework adopts the structural system that is applicable to commercial super highrise building: mega-frame-Core Walls Structure-cantilever truss structure system.This system is made up of three parts: Reinforced Concrete Core Walls Structure, housing profile steel concrete column and the floor girder steel of built-in reinforced concrete column and steel plate form mega-frame, and respective storey position arranges endless belt truss, semi-girder truss reinforcement housing is connected with inner core.Underground steel work is mainly made up of 12 huge posts of reinforcing bar, floor girder steel, Core Walls Structure reinforcing bar post steel plate shear force wall three parts,
The huge post of reinforcing bar comprises combination H type cross section and star section; The huge column sectional length of star section is longer, and segmentation appearance and size is larger, and weight is heavier, belongs to overlength, super wide member, larger on transport impact.The huge column sectional structure of reinforcing bar is relatively simple, and connected only only have floor girder steel bracket, therefore only there is stiffening rib its inside in part.Because huge column sectional appearance and size is large, web height is high, and structure easily produces distortion, therefore needs to consider the reinforcement of structure, prevents from having bad luck, produces plastic strain in hoisting process.Huge column sectional is higher to profile dimension precision requirement, when factory process is made, should strictly control.
Summary of the invention
Goal of the invention: in work progress, transport is inconvenient, on-the-spot difficulty of processing is large in order to solve, and working face requires high problem, the quality control of being more convenient for, saving installation cost, the invention provides a kind of huge cross coupled column and preparation method thereof.
Technical scheme: huge cross coupled column of the present invention, comprises two T-steels and an i iron; Described T-steel is arranged on i iron both sides and is formed as the cross section column body structure with side plate; Described column structure upper, middle and lower are respectively equipped with two-layer stiffener, on the side plate of described column structure, are provided with peg, on described i iron, are provided with bracket with the junction of described stiffener.
The steel plate that the steel plate that described column structure employing thickness of slab 40≤t < 60mm, material are Q345GJC-Z15 or thickness of slab t >=60mm, material are Q345GJC-Z25 is made.
Angle between described two T-steel plates is 1.5 ± 0.2 degree.
The preparation method of described huge cross coupled column, comprises the steps:
(1) adopt 2000 tons of hydraulic presses to carry out leveling to i iron and T-steel, adopt numerical control vertical bar cutting machine or numerical control plasma cutting machine to cut bracket, peg, reserved welding contracted quantity and allowance when cutting, fill up, polish, remove stain and burr after cutting;
(2) on the platform of workshop, draw relevant huge cross coupled column center line, bracket center line, angle line, the bracket end face tongue and groove position line, moulding bed is set;
(3) on moulding bed, two T-steels are assembled in opposite directions, fillet weld is carried out to automatic submerged-arc welding, T-steel is taken apart, corrected
;
(4) location, installation i iron on moulding bed, at location, both sides, the installation T-steel of i iron, adopts gas shielded arc welding and automatic submerged arc welding in conjunction with welding, and welding is rear corrects;
(5) stiffener is installed, welding, and carry out check measurement;
(6) cross end face is carried out to end mill, mounted member is corrected, detected;
(7) location, installation bracket, peg line, welding;
(8) entirety is measured, and checks and accepts.
Described step (4) location comprises:, must detect assembling angle special sample when the location, after location is correct and moulding bed spot welding firm, parts locally flatness is no more than 2mm, appearance and size ± 1mm, rigging datum line ± 0.5mm; , carry out processing and fabricating with one end for just making end, surplus is placed on other one end when member the location; Before installation, will polish smooth with i iron junction; The welding of described step (4) comprising: adopt electric boiling plate butt welded seam both sides to carry out preheating, strictly monitor by electrical heating digital temperature control case and tempilstick, after preheating, adopt submerged arc welding, the junction of spot welding i iron one end face and both sides T-steel, groove depth one half to be welded to stands up the junction of carrying out back chipping and be welded to connect i iron other end and both sides T-steel, after being welded to equally half groove depth, stand up the junction of welding the former end face of i iron and both sides T-steel, according to this by constantly standing up and be symmetrically welded, control welding deformation, postwelding carrying out flaw detection; Commissure 50mm scope should be polished and clean out with interior iron rust, greasy dirt etc., until expose just can carry out after metallic luster assembled; On special i iron automatic assembling or dedicated set assembling platform, be assembled into dagger, i iron and T-shaped plate center line must align; The welding material that the assembled tacking of i iron adopts must with formal weld seam require identical, the leg of tacking should not be greater than 2/3 of design weld seam, and must not be greater than 8mm, tack weld length is preferably 500mm ~ 600mm, tacking must not have crackle, pore, slag inclusion, otherwise welding again after must removing; When rectification, check following parameter: gap: ± 1.0mm, verticality: b/200, and should not be greater than 2.0, length: ± 2.0mm, off-centring: ± 1.0mm.
Described step (5) comprising: entirety is carried out to check measurement, the particularly sectional dimension at the upper and lower two ends of huge cross coupled column and verticality, the straightness accuracy of i iron and T-steel, must be undertaken measuring and checking comprehensively by full-time inspection personnel, principal weld is carried out to ultrasonic testing/ ultrasonic examination simultaneously, after meeting the demands, adopt the method for draw point line to mark the end mill Working position line of upper and lower end face, and develop and print and carry out mark with ocean, the inspection benchmark during as end mill, then carries out next step member end face end mill.
Described step (6) comprising: center line and the levelness of on end face machine platform, reserving huge cross coupled column, carry out the overall end mill processing of end face, in end mill process, should note developing and printing as benchmark using ocean, when end mill, should stay half ocean to develop and print, after end mill, carry out the bevel for welding cutting of segmentation interface; End mill allowable variation is: two end mills are member appearance and size at ordinary times: ± 2.0mm, the planeness of milling flat: 0.3mm, the verticality L/1500 of milling flat to axis.
Described step (7) comprising: before bracket is installed, verticality, straightness accuracy, the planeness of bracket should be corrected, and first carry out the drilling of bolt hole, after meeting the requirements, just can install, when installation, adopt interim location-plate to position and adjust, must ensure the correct of bracket position, particularly the distance of bolt hole group and steel column center line will ensure, simultaneously angle and other relative positions of priority control bracket; Appearance of weld effect between peg and steel column also has certain relation with welding with porcelain ring, and before carrying out welding of peg, certain attention peg and welding, by the goodness of fit between porcelain ring, must fit tightly.
Described step (8) comprising: need to adopt total powerstation and ground position line method to carry out composite measurement, to guarantee its precision; Member Welding is corrected rear tolerance: steel column height: ± 1mm, steel column width; ± 2mm, web off-centring: ± 1mm, frange plate verticality; ± 2mm, shaft bending arrows degree: L/1000mm and be not more than 10mm, web part planeness 2mm, shaft distortion: H/250 and be not more than 5mm.
Beneficial effect: huge cross coupled column of the present invention and preparation method thereof tool has the following advantages:
1, structure design novelty of the present invention, in having ensured post bearing capacity, simplified to greatest extent the structure of post, saved raw material, save cost, increased efficient construction usable floor area, reduce dead load simultaneously, reduce structural seismic response, improve support effect.
2, preparation method of the present invention, has solved the problem that batch production is produced, and has greatly accelerated the progress of making, and has shortened the duration, reasonably designs the difficulty and the workload that have reduced welding simultaneously, and convenient construction, reduces working measure expense, and save the duration.
3, reasonably assembling sequence, welding sequence and welding method of entirety in the present invention, has further ensured the quality of the huge post of producing; Reduce the welding deformation in segmental machining process, ensure the form accuracy of large scale steel column simultaneously; In strict control installation process, precision and overall dimension etc., ensure field erected convenient and swift and installation quality, simultaneously for reducing assembled workload.
4, the present invention is typical super-high building structure, and structure of the ultra-large type that provides combination H type section Steel Column and preparation method thereof can be generalized to the construction of other high building structures, and provides convenient for crossed construction.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is decomposition texture schematic diagram of the present invention.
Fig. 3 is the schematic diagram of step (3).
Fig. 4 is the schematic diagram of step (4).
Fig. 5 is the schematic diagram of step (5).
Detailed description of the invention
Below by accompanying drawing, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
embodiment 1:huge cross coupled column as depicted in figs. 1 and 2, comprises two T-steels 2 and an i iron 1; T-steel 2 is arranged on i iron 1 both sides and is formed as the cross section column body structure with side plate, and the angle between two T-steel 2 plates is 1.5 degree; Column structure upper, middle and lower are respectively equipped with two-layer stiffener 3, on the side plate of column structure, are provided with peg 5, on i iron 1, are provided with bracket 4 with the junction of stiffener 3.
The steel plate that the steel plate that column structure employing thickness of slab 45mm, material are Q345GJC-Z15 and thickness of slab 60mm, material are Q345GJC-Z25 is made.
The preparation method of above-mentioned huge cross coupled column, specifically comprises the steps:
(1) adopt 2000 tons of hydraulic presses to carry out leveling to i iron and T-steel, adopt numerical control vertical bar cutting machine or numerical control plasma cutting machine to cut bracket, peg, reserved welding contracted quantity and allowance when cutting, fill up, polish, remove stain and burr after cutting;
(2) on the platform of workshop, draw relevant huge cross coupled column center line, bracket center line, angle line, the bracket end face tongue and groove position line, moulding bed is set;
(3) on moulding bed, two T-steels are assembled in opposite directions, as shown in Figure 3, fillet weld is carried out to automatic submerged-arc welding, T-steel is taken apart, corrected
;
(4) location, installation i iron on moulding bed, at location, both sides, the installation T-steel of i iron, adopts gas shielded arc welding and automatic submerged arc welding in conjunction with welding, and welding is rear corrects, as shown in Figure 4; , must detect with special sample assembling angle and reversible deformation value, location is afterwards correct and moulding bed spot welding is firm when the location, and parts locally flatness is no more than 2mm, appearance and size ± 1mm, rigging datum line ± 0.5mm; , carry out processing and fabricating with one end for just making end, surplus is placed on other one end when member the location; Before installation, will polish smooth with i iron junction; Adopt electric boiling plate butt welded seam both sides to carry out preheating, strictly monitor by electrical heating digital temperature control case and tempilstick, after preheating, adopt submerged arc welding, the junction of spot welding i iron one end face and both sides T-steel, groove depth one half to be welded to stands up the junction of carrying out back chipping and be welded to connect i iron other end and both sides T-steel, after being welded to equally half groove depth, stand up the junction of welding the former end face of i iron and both sides T-steel, according to this by constantly standing up and be symmetrically welded, control welding deformation, postwelding carrying out flaw detection; Commissure 50mm scope should be polished and clean out with interior iron rust, greasy dirt etc., until expose just can carry out after metallic luster assembled; On special i iron automatic assembling or dedicated set assembling platform, be assembled into dagger, i iron and T-shaped plate center line must align; The welding material that the assembled tacking of i iron adopts must with formal weld seam require identical, the leg of tacking should not be greater than 2/3 of design weld seam, and must not be greater than 8mm, tack weld length is preferably 500mm ~ 600mm, tacking must not have crackle, pore, slag inclusion, otherwise welding again after must removing; When rectification, check following parameter: gap: ± 1.0mm, verticality: b/200, and should not be greater than 2.0, length: ± 2.0mm, off-centring: ± 1.0mm;
(5) stiffener, welding are installed, as shown in Figure 5, and carry out check measurement; Entirety is carried out to check measurement, the particularly sectional dimension at the upper and lower two ends of huge cross coupled column and verticality, the straightness accuracy of i iron and T-steel, must be undertaken measuring and checking comprehensively by full-time inspection personnel, principal weld is carried out to ultrasonic testing/ ultrasonic examination simultaneously, after meeting the demands, adopt the method for draw point line to mark the end mill Working position line of upper and lower end face, and develop and print and carry out mark with ocean, the inspection benchmark during as end mill, then carries out next step member end face end mill;
(6) cross end face is carried out to end mill, mounted member is corrected, detected; On end face machine platform, reserve center line and the levelness of huge cross coupled column, carry out the overall end mill processing of end face, in end mill process, should note developing and printing as benchmark using ocean, when end mill, should stay half ocean to develop and print, after end mill, carry out the bevel for welding cutting of segmentation interface; End mill allowable variation is: two end mills are member appearance and size at ordinary times: ± 2.0mm, the planeness of milling flat: 0.3mm, the verticality L/1500 of milling flat to axis;
(7) location, installation bracket, peg line, welding; Before bracket is installed, verticality, straightness accuracy, the planeness of bracket should be corrected, and first carry out the drilling of bolt hole, after meeting the requirements, just can install, when installation, adopt interim location-plate to position and adjust, must ensure the correct of bracket position, particularly the distance of bolt hole group and steel column center line will ensure, simultaneously angle and other relative positions of priority control bracket; Appearance of weld effect between peg and steel column also has certain relation with welding with porcelain ring, and before carrying out welding of peg, certain attention peg and welding, by the goodness of fit between porcelain ring, must fit tightly;
(8) entirety is measured, and checks and accepts; Need to adopt total powerstation and ground position line method to carry out composite measurement, to guarantee its precision; Member Welding is corrected rear tolerance: steel column height: ± 1mm, steel column width; ± 2mm, web off-centring: ± 1mm, frange plate verticality; ± 2mm, shaft bending arrows degree: L/1000mm and be not more than 10mm, web part planeness 2mm, shaft distortion: H/250 and be not more than 5mm.
As mentioned above, although represented and explained the present invention with reference to specific preferred embodiment, it shall not be construed as the restriction to the present invention self.Not departing under the spirit and scope of the present invention prerequisite of claims definition, can make in the form and details various variations to it.
Claims (9)
1. a huge cross coupled column, is characterized in that: comprise two T-steels and an i iron; Described T-steel is arranged on i iron both sides and is formed as the cross section column body structure with side plate; Described column structure upper, middle and lower are respectively equipped with two-layer stiffener, on the side plate of described column structure, are provided with peg, on described i iron, are provided with bracket with the junction of described stiffener.
2. huge cross coupled column according to claim 1, is characterized in that: the steel plate that the steel plate that described column structure employing thickness of slab 40≤t < 60mm, material are Q345GJC-Z15 or thickness of slab t >=60mm, material are Q345GJC-Z25 is made.
3. huge cross coupled column according to claim 1, is characterized in that: the angle between two T-steel plates of described cross is 1.5 ± 0.2 degree.
4. the preparation method of huge cross coupled column according to claim 1, is characterized in that, comprises the steps:
(1) adopt 2000 tons of hydraulic presses to carry out leveling to i iron and T-steel, adopt numerical control vertical bar cutting machine or numerical control plasma cutting machine to cut bracket, peg, reserved welding contracted quantity and allowance when cutting, fill up, polish, remove stain and burr after cutting;
(2) on the platform of workshop, draw relevant huge cross coupled column center line, bracket center line, angle line, the bracket end face tongue and groove position line, moulding bed is set;
(3) on moulding bed, two T-steels are assembled in opposite directions, fillet weld is carried out to automatic submerged-arc welding, T-steel is taken apart, corrected
;
(4) location, installation i iron on moulding bed, at location, both sides, the installation T-steel of i iron, adopts gas shielded arc welding and automatic submerged arc welding in conjunction with welding, and welding is rear corrects;
(5) stiffener is installed, welding, and carry out check measurement;
(6) cross end face is carried out to end mill, mounted member is corrected, detected;
(7) location, installation bracket, peg line, welding;
(8) entirety is measured, and checks and accepts.
5. the preparation method of huge cross coupled column according to claim 4, it is characterized in that: described step (4) location comprises:, must detect assembling angle special sample when the location, location is afterwards correct and moulding bed spot welding is firm, parts locally flatness is no more than 2mm, appearance and size ± 1mm, rigging datum line ± 0.5mm; , carry out processing and fabricating with one end for just making end, surplus is placed on other one end when the location; Before installation, will polish smooth with i iron junction; The welding of described step (4) comprising: adopt electric boiling plate butt welded seam both sides to carry out preheating, strictly monitor by electrical heating digital temperature control case and tempilstick, after preheating, adopt submerged arc welding, the junction of spot welding i iron one end face and both sides T-steel, groove depth one half to be welded to stands up the junction of carrying out back chipping and be welded to connect i iron other end and both sides T-steel, after being welded to equally half groove depth, stand up the junction of welding the former end face of i iron and both sides T-steel, according to this by constantly standing up and be symmetrically welded, control welding deformation, postwelding carrying out flaw detection; Commissure 50mm scope should be polished and clean out with interior iron rust, greasy dirt etc., until expose just can carry out after metallic luster assembled; On special i iron automatic assembling or dedicated set assembling platform, be assembled into dagger, i iron and T-shaped plate center line must align; The welding material that the assembled tacking of i iron adopts must with formal weld seam require identical, the leg of tacking should not be greater than 2/3 of design weld seam, and must not be greater than 8mm, tack weld length is preferably 500mm ~ 600mm, tacking must not have crackle, pore, slag inclusion, otherwise welding again after must removing; When rectification, check following parameter: gap: ± 1.0mm, verticality: b/200, and should not be greater than 2.0mm, length: ± 2.0mm, off-centring: ± 1.0mm.
6. the preparation method of ultra-large type combination H type section Steel Column according to claim 4, it is characterized in that: described step (5) comprising: entirety is carried out to check measurement, the particularly sectional dimension at the upper and lower two ends of huge cross coupled column and the verticality of i iron and T-steel, straightness accuracy, must be undertaken measuring and checking comprehensively by full-time inspection personnel, principal weld is carried out to ultrasonic testing/ ultrasonic examination simultaneously, after meeting the demands, adopt the method for draw point line to mark the end mill Working position line of upper and lower end face, and develop and print and carry out mark with ocean, inspection benchmark during as end mill, then carry out next step member end face end mill.
7. the preparation method of ultra-large type combination H type section Steel Column according to claim 4, it is characterized in that: described step (6) comprising: center line and the levelness of on end face machine platform, reserving huge cross coupled column, carry out the overall end mill processing of end face, in end mill process, should note developing and printing as benchmark using ocean, when end mill, should stay half ocean to develop and print, after end mill, carry out the bevel for welding cutting of segmentation interface; End mill allowable variation is: two end mills are member appearance and size at ordinary times: ± 2.0mm, the planeness of milling flat: 0.3mm, the verticality L/1500 of milling flat to axis.
8. the preparation method of ultra-large type combination H type section Steel Column according to claim 4, it is characterized in that: described step (7) comprising: before bracket is installed, verticality, straightness accuracy, the planeness of bracket should be corrected, and first carry out the drilling of bolt hole, after meeting the requirements, just can install, when installation, adopt interim location-plate to position and adjust, must ensure the correct of bracket position, particularly the distance of bolt hole group and steel column center line will ensure, simultaneously angle and other relative positions of priority control bracket; Appearance of weld effect between peg and steel column also has certain relation with welding with porcelain ring, and before carrying out welding of peg, certain attention peg and welding, by the goodness of fit between porcelain ring, must fit tightly.
9. the preparation method of ultra-large type combination H type section Steel Column according to claim 4, is characterized in that: described step (8) comprising: need to adopt total powerstation and ground position line method to carry out composite measurement, to guarantee its precision; Member Welding is corrected rear tolerance: steel column height: ± 1mm, steel column width; ± 2mm, web off-centring: ± 1mm, frange plate verticality; ± 2mm, shaft bending arrows degree: L/1000mm and be not more than 10mm, web part planeness 2mm, shaft distortion: H/250 and be not more than 5mm.
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| CN105155777A (en) * | 2015-09-29 | 2015-12-16 | 江苏沪宁钢机股份有限公司 | Steel rib double-T-shaped column and manufacturing method thereof |
| CN105370215A (en) * | 2015-10-13 | 2016-03-02 | 南阳二机石油装备(集团)有限公司 | Novel ocean bottleneck type tower-shaped derrick and manufacturing method thereof |
| CN106736286A (en) * | 2016-12-22 | 2017-05-31 | 浙江精工钢结构集团有限公司 | A kind of cross based on double-layer circular sleeve pipe mechanism turns circular tube structure and preparation method |
| CN107617857A (en) * | 2017-10-26 | 2018-01-23 | 十四冶建设集团云南安装工程有限公司 | Heavy crossed steel column makes engineering method |
| CN108798033A (en) * | 2018-06-11 | 2018-11-13 | 上海通用建筑工程有限公司 | A kind of manufacture installation method of structural steelwork gravity column |
| CN111549898A (en) * | 2020-04-25 | 2020-08-18 | 上海洪铺钢结构工程有限公司 | Steel structure and welding process thereof |
| CN112453661A (en) * | 2020-11-10 | 2021-03-09 | 新疆冶金建设(集团)有限责任公司 | Welding manufacturing method for controlling thermal deformation of cross-shaped steel column |
| CN112681759A (en) * | 2020-12-25 | 2021-04-20 | 中铁十局集团有限公司 | Construction method of cross steel rib of stiff column |
| CN113290332A (en) * | 2021-05-21 | 2021-08-24 | 浙江东南网架股份有限公司 | Manufacturing method of multi-angle complex bracket cross-shaped column |
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| CN105155777A (en) * | 2015-09-29 | 2015-12-16 | 江苏沪宁钢机股份有限公司 | Steel rib double-T-shaped column and manufacturing method thereof |
| CN105370215A (en) * | 2015-10-13 | 2016-03-02 | 南阳二机石油装备(集团)有限公司 | Novel ocean bottleneck type tower-shaped derrick and manufacturing method thereof |
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| CN106736286A (en) * | 2016-12-22 | 2017-05-31 | 浙江精工钢结构集团有限公司 | A kind of cross based on double-layer circular sleeve pipe mechanism turns circular tube structure and preparation method |
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| CN108798033A (en) * | 2018-06-11 | 2018-11-13 | 上海通用建筑工程有限公司 | A kind of manufacture installation method of structural steelwork gravity column |
| CN111549898A (en) * | 2020-04-25 | 2020-08-18 | 上海洪铺钢结构工程有限公司 | Steel structure and welding process thereof |
| CN112453661A (en) * | 2020-11-10 | 2021-03-09 | 新疆冶金建设(集团)有限责任公司 | Welding manufacturing method for controlling thermal deformation of cross-shaped steel column |
| CN112681759A (en) * | 2020-12-25 | 2021-04-20 | 中铁十局集团有限公司 | Construction method of cross steel rib of stiff column |
| CN113290332A (en) * | 2021-05-21 | 2021-08-24 | 浙江东南网架股份有限公司 | Manufacturing method of multi-angle complex bracket cross-shaped column |
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