CN101435222A - Steel lattice column non-cable correcting construction method - Google Patents
Steel lattice column non-cable correcting construction method Download PDFInfo
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- CN101435222A CN101435222A CNA200810229777XA CN200810229777A CN101435222A CN 101435222 A CN101435222 A CN 101435222A CN A200810229777X A CNA200810229777X A CN A200810229777XA CN 200810229777 A CN200810229777 A CN 200810229777A CN 101435222 A CN101435222 A CN 101435222A
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Abstract
The invention relates to building construction method. A steel grid column non cable correction construction method is disclosed. the bottom elevation of a cup opening is lower than a designed elevation by 50mm; the top surface of the cup opening base is marked with axes, and the column is marked with elevation; the steel grid column is suspended in the cup opening base; jacks are put on the two axes, the steel grid column is pushed to put the column plane in position, and a steel wedge is fixed; four jacks are put at lower parts of four edges of the steel grid column feet and fall down together to reach the requirement of the column elevation, and the four edges of the steel grid column are welded with ear plates fixedly; theodolites are arranged in the two axes directions of the steel grid column, the jacks fixed on the steel grid column are adjusted to calibrate the verticality of the column, hawser cable is temporarily fixed; then the column feet concrete is poured, and the hawser cable is unfastened after reaching certain intensity. Compared with conventional calibration technology using hawser cable, the method of the invention has simple process, convenient operation, and fast construction speed, saves cost, and is not limited by the size of surrounding place.
Description
One, technical field:
The present invention relates to construction techniques, particularly the correcting construction method of steel lattice column.
Two, background technology:
Heavy Type Steel Structure industry garage, because the steel work size is big, weight is big, increased very big difficulty of construction to lifting, correction, for guaranteeing the Steel Structure Installation quality, must adopt rational mounting process, bearing calibration, particularly for more apparent its importance of many limbs steel lattice column of proofreading and correct ultra-high overweight is installed.
Conventional at present installation correcting construction method is to adopt hawser
Three, summary of the invention:
The purpose of this invention is to provide a kind of steel lattice column non-cable correcting construction method, lifting speed is fast, and it is convenient to proofread and correct, precision height, easy construction.
The technical scheme that the present invention is adopted for achieving the above object is: steel lattice column non-cable correcting construction method, first step preparation of construction basis is checked and accepted: the rim of a cup basis is cleared up, check rim of a cup at the bottom of absolute altitude be lower than design elevation 50mm; The second stepping rower is annotated: mark out on reference axis, the shaft at rim of a cup basis end face and mark absolute altitude; The 3rd step lifting: steel lattice column is hung in the rim of a cup basis; The 4th step correcting plane position: lay jack on two axis, the pushing tow steel lattice column makes the post plane in place, and fixes with gad; The 5th step was proofreaied and correct absolute altitude: place four jack below steel latticework suspension column four limits, withstand on the steel lattice column bottom surface, loosen the lifting hook, four jack fall simultaneously, adhere to specification until the post absolute altitude, on steel lattice column four limits, weld fixedly steel lattice column absolute altitude of otic placode; The 6th step was proofreaied and correct verticality: lay two transits on two axis directions of steel lattice column, use adjustment to be fixed on steel pile and proofread and correct the post verticality, after meeting the requirements, use the temporary fixed steel column of cable wind rope; The 7th the step build: build the suspension column concrete then, reach design strength 90% after, take off cable wind rope.
The described second step mark: mark ± 0.00 absolute altitude line, post center line, the elongated line of shaft on shaft.
Described the 3rd step lifting: adopt crawler crane to carry out the single-point lifting.
Described the 4th step correcting plane position: the pushing tow shaft makes x axis and basic end face x dead in line on the shaft, put into steel plate in the rim of a cup and the shaft tack weld connects fixing, pushing tow shaft again, make y axis and basic top the on the shaft to the x dead in line, make the y axial location in place, put into steel plate and shaft firm welding in the same rim of a cup.
The described the 5th proofreaies and correct absolute altitude: use the jack that is laid in the steel lattice column below, the whereabouts jack when mark ± 0.00 absolute altitude reaches requirement on shaft, stops the jack that falls, and welds otic placode on shaft, fixedly the shaft absolute altitude.
Described the 6th step is proofreaied and correct verticality: on two axis directions of shaft, lay a jack respectively, lay two transits simultaneously, determine the pushing tow direction of jack by the elongated line of ink marker of observation shaft, until meeting the requirements the excision suspension hook.
The 7th step built: the suspension column concrete divides secondary to be poured into the top, and building for the first time highly is 2/3rds, and maintenance was carried out building the second time to basic end face in three days.
When job practices of the present invention lifts, do not use cable wind rope to proofread and correct and use jack correction steel lattice column, the correction difficulty is little, and correction rate is fast, the correction accuracy height; The use jack is proofreaied and correct, and both can proofread and correct steel lattice column verticality, plan-position, can proofread and correct the steel lattice column absolute altitude again; Use this worker's method to proofread and correct, before cast suspension column concrete, steel lattice column verticality, plan-position, absolute altitude change little, are convenient to secondary and check correction; The present invention is applicable to that single limb, many limbs steel lattice column of plug-in type suspension column, the installation of steel box column proofread and correct.Adopt job practices of the present invention, than traditional employing cable wind rope alignment technique, technology is simple, and is easy to operate, and speed of application is fast, saves the crane machine-team, workman's recruitment quantity, and particularly seldom occupied ground is not subjected to place size restriction on every side.Than employing cable wind rope correction of typist's errors, the energy reduction of erection time 50%, save cost 30%, economic benefit and social benefit are obvious.
Four, description of drawings:
Fig. 1 is construction process figure of the present invention.
Fig. 2 is a hoisting flow chart of the present invention.
Fig. 3 hands over horizontal frontal plane position coordinates figure for the present invention.
Fig. 4 is a correcting plane positional structure schematic diagram of the present invention.
Fig. 5 proofreaies and correct the absolute altitude structural representation for the present invention.
Fig. 6 proofreaies and correct the verticality structural representation for the present invention.
Five, the specific embodiment:
Through in Dalian newly-built plane, a certain workshop, curved surface, parts dress welder field engineering on probation, the heavy four limbs steel lattice column of the high 34t of 35m has been adopted in design, adopt steel lattice column non-cable correcting construction method of the present invention, steel lattice column adopts and makes in steel work processing factory, be transported to the building site then, factory process making progress is carried out according to the site operation progress, thereby guarantees on-the-spot installation smoothly.When mounted, adopt a 150t crawler crane to lift, for preventing the influence of environment temperature to the Steel Structure Installation precision, lifting generally is arranged in to be carried out at 11 in the morning in the past.Owing to adopted the non-cable correcting technology, effectively guaranteed the installation accuracy and the speed of steel lattice column.This engineering is owing to adopted this to proofread and correct new method, make engineering steel lattice column installation accuracy height, installation rate fast, installed in one month, detect through quality monitoring, this project steel lattice column installation qualification rate is 100%, maximum perpendicular degree deviation is 4mm, and maximum absolute altitude deviation is 5mm, and the largest axis deviation is 3mm, all less than code requirement, construction overall process be in safety, stable, fast, the controllable state of high-quality, security incident does not take place than plan 20 days in advance in the duration in the work progress.Specifically work progress is as shown in Figure 1:
1, preparation of construction, basis are checked and accepted:
After base concrete intensity reaches 100% design strength, rim of a cup 4 physical dimensions, absolute altitude, axial location are checked, check requirement after, eject steel lattice column axis X, Y in length and breadth with ink fountain at basic end face, absolute altitude is than the low 50mm of design elevation, so that the adjustment of post absolute altitude is proofreaied and correct at the bottom of requiring base for post.
2, steel lattice column axis absolute altitude mark:
Before lifting, to check steel lattice column 1 length and whether meet the requirements, rustproof paint has or not destruction, at first ejects a numerical value line of ink marker with ink fountain on the elongated steel pipe on the both direction of shaft, is convenient to back in place and observes, proofreaies and correct verticality with transit.According to the capital absolute altitude, extrapolate ± 0.00 absolute altitude by drawing steel ruler, to steel lattice column ± 0.00 absolute altitude line, post center line, the elongated line of shaft position and marked on shaft with red paint, be used for post-equalization absolute altitude in place;
3, lifting:
According to single steel lattice column weight, total length, select for use the crawler crane that meets lifting requirements to lift, as selecting the 150t crawler crane in this construction for use, the single-point lifting is adopted in the embolus lifting, and the hoisting flow process as shown in Figure 2, the soft cat ladder of elder generation's colligation must carry out before lifting, is convenient to fix, during colligation, be strained and fixed firmly, when preventing to lift, the cat ladder swing, the influence lifting, this soft cat ladder is used for the decoupling device of hoist lifting hook; On the steel lattice column 1 fixedly the lifting rope position must adopt thick rubber bag to protect, prevent that lifting rope from damaging rustproof paint, lifting adopts two lifting rope bolts at capital with wire rope, prevents the steel column back rotation of slinging, and is difficult in place; When put at the steel lattice column scene, must be the close basis of capital, shaft be parallel with the crane track route, crane is positioned at capital and near a basic side, during lifting, advances to suspension column one skidding while crane plays hook, when shaft during near 90 °, stop to advance, continued hook, until shaft hold up straight after, crane retreats then, when basis during in crane radius of gyration scope, crane stops to retreat, rotate to rim of a cup 4 tops, steel lattice column 1 is slowly dropped in the rim of a cup 4, finish tentatively in place.
4, correcting plane position:
According to the x axis of steel lattice column shaft mark, pushing tow shaft on the y axis direction makes on the shaft and puts into steel plate 3 in the x axis and basic end face x rim of a cup, connect fixing with the shaft tack weld, as Fig. 3,4, according to the y axis that marks on the shaft, on the x axis direction, jack is installed again, the pushing tow shaft, make y axis and basic top the on the shaft, make the y axial location in place, put into steel plate 3 in the same rim of a cup to the x dead in line, make each steel plate and shaft firm welding, make the shaft plan-position in place.
5, proofread and correct absolute altitude:
Datum grade point according to use in the building site uses the DS3 level gauge, carries out absolute altitude and checks.Use is laid in 4 20t jack 2 of steel lattice column 1 below, and the whereabouts jack when mark ± 0.00 absolute altitude reaches requirement on shaft, stops the jack that falls, and welds otic placode, fixedly shaft absolute altitude then as shown in Figure 5 on shaft.
6, proofread and correct verticality:
As shown in Figure 6 on two axis directions of shaft, lay a 20t jack 2 respectively, lay two TDT2 transits 6 simultaneously, determine the pushing tow direction of jack by the elongated line of ink marker of observation shaft, until meeting the requirements, after having proofreaied and correct steel lattice column plan-position, absolute altitude, verticality, can extract suspension hook.
7, temporary fixed:
All proofread and correct after meet the requirements when shaft plan-position, absolute altitude, verticality, use four cable wind ropes, steel lattice column is carried out temporary fixed, and in the suspension column rim of a cup, fill in gad.
8, build the suspension column concrete:
The suspension column concrete divides secondary to be poured into the top, and building for the first time highly is 2/3rds, and maintenance was carried out building the second time to basic end face in three days.Treat that the suspension column concrete strength reaches after 90% design strength, and again cable wind rope is taken off after supporting between erection column, finish the correction construction of steel lattice column.
Claims (7)
1, steel lattice column non-cable correcting construction method is characterized in that: first step preparation of construction basis is checked and accepted: the rim of a cup basis is cleared up, check rim of a cup at the bottom of absolute altitude be lower than design elevation 50mm; The second stepping rower is annotated: mark out on reference axis, the shaft at rim of a cup basis end face and mark absolute altitude; The 3rd step lifting: steel lattice column is hung in the rim of a cup basis; The 4th step correcting plane position: lay jack on two axis, the pushing tow steel lattice column makes the post plane in place, and fixes with gad; The 5th step was proofreaied and correct absolute altitude: place four jack below steel latticework suspension column four limits, withstand on the steel lattice column bottom surface, loosen the lifting hook, four jack fall simultaneously, adhere to specification until the post absolute altitude, on steel lattice column four limits, weld fixedly steel lattice column absolute altitude of otic placode; The 6th step was proofreaied and correct verticality: lay two transits on two axis directions of steel lattice column, use adjustment to be fixed on steel pile and proofread and correct the post verticality, after meeting the requirements, use the temporary fixed steel column of cable wind rope; The 7th the step build: build the suspension column concrete then, reach design strength 90% after, take off cable wind rope.
2, steel lattice column non-cable correcting construction method according to claim 1 is characterized in that: the second step mark: mark ± 0.00 absolute altitude line, post center line, the elongated line of shaft on shaft.
3, steel lattice column non-cable correcting construction method according to claim 1 is characterized in that: the lifting of the 3rd step: adopt crawler crane to carry out the single-point lifting.
4, according to the arbitrary described steel lattice column non-cable correcting construction method of claim 1-3, it is characterized in that: the 4th step correcting plane position: the pushing tow shaft makes x axis and basic end face x dead in line on the shaft, put into steel plate in the rim of a cup and the shaft tack weld connects fixing, pushing tow shaft again, make y axis and basic top the on the shaft to the x dead in line, make the y axial location in place, put into steel plate and shaft firm welding in the same rim of a cup.
5, according to the arbitrary described steel lattice column non-cable correcting construction method of claim 1-3, it is characterized in that: the 5th proofreaies and correct absolute altitude: use the jack that is laid in the steel lattice column below, the whereabouts jack, when mark ± 0.00 absolute altitude reaches requirement on shaft, stop the jack that falls, on shaft, weld otic placode, fixedly the shaft absolute altitude.
6, according to the arbitrary described steel lattice column non-cable correcting construction method of claim 1-3, it is characterized in that: the 6th step was proofreaied and correct verticality: on two axis directions of shaft, lay a jack respectively, lay two transits simultaneously, the elongated line of ink marker by the observation shaft is determined the pushing tow direction of jack, until meeting the requirements.
7, according to the arbitrary described steel lattice column non-cable correcting construction method of claim 1-3, it is characterized in that: the 7th step built: the suspension column concrete divides secondary to be poured into the top, building for the first time highly is 2/3rds, and maintenance was carried out building the second time to basic end face in three days.
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| CNA200810229777XA CN101435222A (en) | 2008-12-12 | 2008-12-12 | Steel lattice column non-cable correcting construction method |
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| CNA200810229777XA CN101435222A (en) | 2008-12-12 | 2008-12-12 | Steel lattice column non-cable correcting construction method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818575A (en) * | 2010-02-10 | 2010-09-01 | 中国建筑第七工程局有限公司 | Construction technology of cross-shaped profile steel column |
| CN104929372A (en) * | 2015-06-12 | 2015-09-23 | 山西四建集团有限公司 | Construction method for accurate steel pipe column installation |
| CN105863042A (en) * | 2015-01-19 | 2016-08-17 | 江苏沪宁钢机股份有限公司 | All-steel structure building and construction method thereof |
| CN106193630A (en) * | 2016-07-05 | 2016-12-07 | 中国十九冶集团有限公司 | Prefabricated Concrete bent columns hoisting alignment instrument |
| CN111119497A (en) * | 2019-12-30 | 2020-05-08 | 倡创(上海)咨询管理事务所 | Super-large box-type steel column installation system and construction method |
| CN111502120A (en) * | 2020-04-28 | 2020-08-07 | 中铁六局集团有限公司 | Construction method for hoisting platform steel stand column |
| CN112727107A (en) * | 2020-12-25 | 2021-04-30 | 上海二十冶建设有限公司 | Construction method for quickly adjusting position of axis in steel column installation and in-place |
-
2008
- 2008-12-12 CN CNA200810229777XA patent/CN101435222A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818575A (en) * | 2010-02-10 | 2010-09-01 | 中国建筑第七工程局有限公司 | Construction technology of cross-shaped profile steel column |
| CN105863042A (en) * | 2015-01-19 | 2016-08-17 | 江苏沪宁钢机股份有限公司 | All-steel structure building and construction method thereof |
| CN104929372A (en) * | 2015-06-12 | 2015-09-23 | 山西四建集团有限公司 | Construction method for accurate steel pipe column installation |
| CN104929372B (en) * | 2015-06-12 | 2017-05-17 | 山西四建集团有限公司 | Construction method for accurate steel pipe column installation |
| CN106193630A (en) * | 2016-07-05 | 2016-12-07 | 中国十九冶集团有限公司 | Prefabricated Concrete bent columns hoisting alignment instrument |
| CN111119497A (en) * | 2019-12-30 | 2020-05-08 | 倡创(上海)咨询管理事务所 | Super-large box-type steel column installation system and construction method |
| CN111119497B (en) * | 2019-12-30 | 2023-11-03 | 倡创(上海)咨询管理事务所 | Ultra-large box-type steel column installation system and construction method |
| CN111502120A (en) * | 2020-04-28 | 2020-08-07 | 中铁六局集团有限公司 | Construction method for hoisting platform steel stand column |
| CN112727107A (en) * | 2020-12-25 | 2021-04-30 | 上海二十冶建设有限公司 | Construction method for quickly adjusting position of axis in steel column installation and in-place |
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Open date: 20090520 |