CN1082598C - Method for jacking and correcting deviation of building broken pillar - Google Patents
Method for jacking and correcting deviation of building broken pillar Download PDFInfo
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- CN1082598C CN1082598C CN 96119073 CN96119073A CN1082598C CN 1082598 C CN1082598 C CN 1082598C CN 96119073 CN96119073 CN 96119073 CN 96119073 A CN96119073 A CN 96119073A CN 1082598 C CN1082598 C CN 1082598C
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Abstract
The present invention relates to a method for lifting and correcting a building broken pillar, which is characterized in that for a house with an oblique frame structure, firstly, a multiple-fulcrum lifting structure composed of a deep pillar-wrapping beam, a frame pillar, a small joist pillar and a jack is arranged in a pillar position with large settling amount; a simulation hinged support seat is arranged in a pillar position with small settling amount and no need of lifting; then, a pillar in a lifting pillar position is cut off; and finally, the synchronous lifting is actualized according to the principle that the upper structure keeps rigid body rotation, which enables a building to rotate around the simulation hinged support seat. Thus, the correcting goal of a building is realized. The present invention has the advantages of reliable lifting structure, safe correcting processes, no need of disassembling a wall to unload, no permanent damage to a building and good collecting effect, and basically unchanged loading condition of the pillar before and after the pillar is cut off and before and after the pillar is lifted; second and more floors can be normally used; the present invention is universally suitable for correcting engineering of buildings with frame structures.
Description
The present invention relates to the method for correcting error of the method for correcting error of building, particularly frame structure building.
Cause the frame structure building that tilts for the gene basis uneven subsidence, the method for correcting error that adopts has two classes at present: forced landing method and lift-up method.The forced landing method be meant by fetch earth, approach such as jetting, pressurization or broken pile force immerge, thereby make the less post position of sedimentation produce new sedimentation, reach the method for rectifying of leaned building purpose.The use of this method is subjected to the restriction of conditions such as geological conditions, type of foundation, embedded depth of foundation, groundwater table, is end bearing pile to the basis, and field condition does not allow the situation of heavy excavation broken pile to be difficult to especially be suitable for again.Present raising method is a kind of simple and crude disconnected capital method for jacking and correcting deviation, its common way is: in jacking post position, press from both sides post with girder steel, strain and provide frictional force by reinforcing pull rod between girder steel and the post, prop is established in the girder steel end, the jack of packing into behind the disconnected shaft of cutter is stressed, lack enough safety guarantee between time to check yaw, thing stress deformation before and after broken pile and jacking is paid on post and top bigger change, it is less to add sedimentation, do not need the post position of jacking to lack rotating function, the upper building Rigid Body in Rotation With is difficult to realize that the permanent damage of superstructure even destruction are difficult to effectively avoid during jacking.Owing to lack enough safety guarantee, often require resident family's resettlement, the off-load of demolishing walls during Deviation Correction Construction.
The purpose of this invention is to provide a kind of process of rectifying a deviation safe and reliable, superstructure is not caused permanent damage, method for jacking and correcting deviation of building broken pillar that rectifying effect is good.
Technical scheme of the present invention is as follows:
Framework house for building inclination, at first be provided with by a steel concrete deep beam of packed pillar, frame column, and the lifting structure of multi-branching point formed of small column ofjoist and jack in the bigger post position of settling amount, post position less at settling amount, that do not need jacking is provided with the simulation hinged-support, block the pillar of jacking post position then and return pading plate immediately, keep the principle of Rigid Body in Rotation With to implement synchronization of jacking up according to upper building at last, during jacking in time at the tight billet of intercolumniation space pad, make the building winding mold intend hinged-support and rotate, thus the target of realization rectifying of leaned building.
Method for jacking and correcting deviation of building broken pillar of the present invention has following characteristics and effect:
1, owing to adopted bag pillar deep beam, post to transmit by the new-old concrete interface in load, transmittance process is through test confirmation, reliably clear and definite.
2, in jacking post position, adopt lifting structure of multi-branching point, frame column, small column ofjoist and three kinds of load-bearing unit of jack all can independently bear the pillar load, be in the safe condition of retrocession, can not lose efficacy because of the accident of a certain unit causes the global failure of climbing structure.
3, owing to adopted lifting structure of multi-branching point, the interior moment of flexure of post of jacking post position is remained unchanged.
4, in not jacking post position, adopt the simulation hinged-support, the function that has realized can rotating and reliably bearing the pillar load makes the Rigid Body in Rotation With of upper building become possibility, avoids the jacking process that superstructure is caused permanent damage even destruction.
5, maintenance water is logical between time to check yaw, electricity is logical, coal gas is logical, and second floor and above can normally the use need not the resettlement personnel, more need not the off-load of demolishing walls.
6, this method is not subjected to the restriction of geological conditions, basic condition and ambient environmental conditions, applicable to the correction of the frame structure building of various situations, and work progress safety, good, the remarkable in economical benefits of rectifying effect.
Fig. 1 is a schematic diagram of the present invention;
Fig. 2 is the constructional drawing of climbing structure;
Fig. 3 is the constructional drawing of simulation hinged-support.
Fig. 4 is the data drawing list of embodiment.
Among the figure: superstructure 1, climbing structure 2, simulation hinged-support 3, basis 4, frame column 5, deep beam of packed pillar 6, billet 7, small column ofjoist 8, jack 9, bag post cushion cap 10, isolating interface 11 is reserved corner l2, post muscle truncated position 13.
Simulation hinged-support shown in Figure 3 structure is at frame column 5 bag post cushion cap 10 to be set earlier, reserves corner 12 under correction direction cushion cap on one side, the cushion cap layout setting spacer of another side, and the post muscle here blocked, frame column 5 rotates to deflection angle 12 during jacking.
Climbing structure shown in Figure 2, earlier deep beam of packed pillar 6 is set at frame column 5, and two small column ofjoists 8 and two jack 9 are set, block the pillar of jacking post then and return pading plate 7 immediately, at last keep the principle of Rigid Body in Rotation With to implement synchronization of jacking up according to upper building, during jacking in time at the tight billet 7 of intercolumniation space pad.
Embodiment requires to make test specimen and test according to the power transmission of processing new-old concrete of the present invention interface.
The steel concrete conversion deep beam of parcel pillar is set in the above position of pillar fracture, and interface processing measures such as cutter hair are adopted at the new-old concrete interface between the beam column, make the load of pillar can be reliably shearing friction by linkage interface be delivered to above the deep beam.
The load of pillar comprises a power, moment of flexure and shearing, and wherein the axle power of pillar is that shearing as linkage interface passes to deep beam, the checking of bearing capacity of linkage interface is started to control to make use.
The bearing capacity of linkage interface is the shearing friction bearing capacity at interface, form by mechanical snap power, chemical bond power and frictional force three parts, mainly with interface cutter hair degree, interfacial area, strength grade of concrete and relevant perpendicular to the factors such as vertical muscle quantity at interface.The cutter hair degree of depth is not less than 10 millimeters at the interface, originally under the situation that normal section destruction is not taken place at the interface, the shearing friction bearing capacity at interface depends primarily on interfacial area and strength grade of concrete to beam.
In order to inquire into the size of interface shearing frictional force, carried out two groups of experiment works of totally six test specimens, first group of three test specimen, the horizontal stirrup of post Zhou Bushe is established horizontal stirrup Φ 6@80, vertical muscle 4 Φ 14 all the other test specimen weeks.
Test shows that test specimen destroys the curved scissors crack that starts from beam, and the curved scissors that belongs to beam itself destroys, and the pillar axle power when promptly the actual shearing friction bearing capacity at interface should destroy greater than test specimen any destruction omen do not appear, in new-old concrete interface as yet when beam destroyed.The pillar axle masterpiece of getting when destroying is the shearing friction bearing capacity at interface, and then its regression formula is:
V＝0.221f
oA…………………………………………(1)
In the formula: f
o---the actual measurement smaller value of beam and column concrete axial compressive strength;
A---the gross area at new-old concrete interface
Be connected the consideration of importance with the interface based on the few limitation of test specimen quantity, wushu (1) gets that the value back is as follows as design formulas on the lower side:
V＝0.15f
oA…………………………………………(2)
Table 1 is listed the ratio of test value and formula (1) and formula (2) calculated value, and the carrying unit of force is kN in the table.By formula the test value of (1) calculating is 1 with the ratio average of calculated value, and the coefficient of variation is 0.0595; By formula the test value of (2) calculating is 1.475 with the ratio average of calculated value, and the coefficient of variation is 0.0390.2. formula can be used as the basis that the interface connects design.Fig. 4 is a shearing friction bearingtest value and the ratio of calculated value.
Claims (2)
1, a kind of method for jacking and correcting deviation of building broken pillar, it is characterized in that: to the framework house of building inclination, at first the lifting structure of multi-branching point of being made up of deep beam of packed pillar, frame column, small column ofjoist and jack is set in the bigger post position of settling amount, less at settling amount, do not need the post position of jacking that the simulation hinged-support is set, block the pillar of jacking post position then, keep the principle of rigidity rotation to implement synchronization of jacking up, make building winding mold plan bearing turn to correction and finish according to superstructure.
2, method for jacking and correcting deviation of building broken pillar according to claim 1 is characterized in that: the simulation hinged-support is that bag post cushion cap is set on frame column, and reserves corner, and the post muscle is blocked, and building can rotate around this post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96119073 CN1082598C (en) | 1996-05-15 | 1996-05-15 | Method for jacking and correcting deviation of building broken pillar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96119073 CN1082598C (en) | 1996-05-15 | 1996-05-15 | Method for jacking and correcting deviation of building broken pillar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1165234A CN1165234A (en) | 1997-11-19 |
| CN1082598C true CN1082598C (en) | 2002-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96119073 Expired - Fee Related CN1082598C (en) | 1996-05-15 | 1996-05-15 | Method for jacking and correcting deviation of building broken pillar |
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| Country | Link |
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| CN (1) | CN1082598C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327036C (en) * | 2004-11-05 | 2007-07-18 | 贵阳铝镁设计研究院 | Aluminium electrolyzing tank integral error correcting and position restoring method |
| CN101492967B (en) * | 2008-01-22 | 2011-01-19 | 上海宝冶建设有限公司 | Steel column error-correcting method |
| CN102704412B (en) * | 2012-04-01 | 2014-05-14 | 上海城建市政工程（集团）有限公司 | Construction process for lifting broken pillars of bridge |
| CN103912136A (en) * | 2014-04-18 | 2014-07-09 | 岩土科技股份有限公司 | Method for heightening indoor spaces of buildings or rectifying deviation thereof |
| CN105569369B (en) * | 2015-12-14 | 2017-10-03 | 哈尔滨工业大学 | A kind of fast repairing method for RC frame structure continuous collapses |
| CN106836839A (en) * | 2016-11-29 | 2017-06-13 | 大连久鼎祥瑞特种工程技术研究院有限公司 | Fabric structure jacking increasing layer method |
| CN110056204B (en) * | 2019-04-19 | 2024-03-19 | 同济大学建筑设计研究院(集团)有限公司 | External unbonded prestress underpinning node |
| CN111075223A (en) * | 2019-12-19 | 2020-04-28 | 江苏鼎达建筑新技术有限公司 | Jacking construction method and jacking device for house reinforcement and deviation rectification |
| CN113882443B (en) * | 2021-10-25 | 2022-06-14 | 广东睿固建设科技有限公司 | Unidirectional deviation rectifying method for building |
| CN114458048A (en) * | 2022-03-24 | 2022-05-10 | 广东建科建筑工程技术开发有限公司 | Column jacking deviation rectifying structure and construction process |
| CN115341778B (en) * | 2022-08-16 | 2024-05-17 | 广东中青建筑科技有限公司 | Building inclination-correction broken column node reinforcing method |
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1996
- 1996-05-15 CN CN 96119073 patent/CN1082598C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1165234A (en) | 1997-11-19 |
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