CN201778499U - Device for unloading reinforced concrete columns - Google Patents
Device for unloading reinforced concrete columns Download PDFInfo
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- CN201778499U CN201778499U CN2010201580590U CN201020158059U CN201778499U CN 201778499 U CN201778499 U CN 201778499U CN 2010201580590 U CN2010201580590 U CN 2010201580590U CN 201020158059 U CN201020158059 U CN 201020158059U CN 201778499 U CN201778499 U CN 201778499U
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- reinforced concrete
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Abstract
The utility model provides a device for unloading reinforced concrete columns, which belongs to the technical field of construction, and solves the problem that a conventional reinforced concrete column is rather difficult to reinforce and repair after quality problems appear. The device for unloading reinforced concrete columns comprises support pillars capable of being supported on a layer beam, and hydraulic lifting mechanisms capable of lifting the support pillars are arranged on two sides of each support pillar. The device for unloading reinforced concrete columns adopts hydraulic pumps to achieve force application and unloading, thereby having the advantage of large and uniform applied force.
Description
Technical field
The utility model belongs to technical field of buildings, relates to a kind of reinforced concrete post, particularly a kind of relief arrangement that unloads above-mentioned steel concrete column load.
Background technology
Concrete has been one of main constructional materials since coming out always, and reinforced concrete structure also is the form of structure that is most widely used in the construction work.One of main feature of reinforced concrete structure is that to influence the factor of its quality more, quality problems appear and after, reinforce, repair difficulty relatively.
In the structure of reinforced concrete process,, can cause part concrete column intensity not reach design load or concrete column constuction joint junction forms major defects such as interlayer owing to reasons such as constructing operation are improper.When above-mentioned constructional deficiency occurring, need to adopt suitable reinforcement means to handle, so people have designed various reinforcement means.For example, the Chinese patent literature method of disclosed a kind of reinforcing concrete post using angle steel [application number: 200510200364.5 once; Publication number: CN1702271A]; Chinese patent literature is the method for disclosed a kind of reinforcing concrete column by expanding section of coated concrete-filled steel tube (CFST) [application number: 200910062521.9 also; Publication number: CN10581152A] and the pre-stressed steel plate hoop [application number: 200520074341.X reinforced of square-section concrete column; Notice of authorization number: CN2809064Y].Adopt reinforcement means such as above-mentioned increasing section method, encased steel method can influence the structure function of use and stay tangible reinforcement trace; Though adopt stickup carbon fiber reinforcement method not influence column cross-section size, also can stay reinforcement trace.Especially when above-mentioned constructional deficiency appeared in the commercial house, if adopt above several reinforcing method to handle, resident family is easier worried because of the reinforcement trace of leaving over produces the house total quality.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind ofly can implement stablize and the unloading reinforced concrete post load device of accurate off-load to reinforced concrete post.
The purpose of this utility model can realize by following technical proposal: a kind of reinforced concrete post replacing and reinforcing method is characterized in that this method carries out according to the following steps:
A, get the raw materials ready: prepare unloading reinforced concrete post load device, template, grouting agent;
B, the above-mentioned unloading reinforced concrete post load device of employing carry out off-load to reinforced concrete post, the bearing load value of this reinforced concrete post before the unload forces value equals to unload;
C, cut and clear up the concrete at reinforced concrete post defective face place;
D, install template, be provided with the grouting mouth of the concrete chisel removal portion upper surface that is higher than reinforced concrete post in the upper end of template in reinforced concrete post concrete chisel removal portion periphery;
E, the concrete chisel removal portion of mixing and stirring above-mentioned grouting agent and watering extremely above-mentioned reinforced concrete post bind the upper and lower side concrete of the concrete chisel removal portion of grouting agent and reinforced concrete post;
F, treat that grouting agent sclerosis is shaped after, stripping and remove unloading reinforced concrete post load device.
This method unloads former post by establishing unloading reinforced concrete post load device, guarantees the safety of structure in the substitution reinforcement process.This method by a top unload, cut, series of processes such as formwork, displacement, form removal finish the integral body or the local substitution reinforcement of major defect concrete column are arranged.Grouting agent has been replaced the concrete at reinforced concrete post defective face place, does not change former column cross-section size thus, does not stay reinforcement trace.
In above-mentioned reinforced concrete post replacing and reinforcing method, described grouting agent is a cement-based grouting material.Utilize that cement-based grouting material caking property is good, microdilatancy, early strengthening and high strengthening, characteristic such as bleeding not, guarantee that the grouting material is integral with former concrete binding, can collaborative work.
In above-mentioned reinforced concrete post replacing and reinforcing method, the sidepiece axial symmetry of reinforced concrete post is provided with unloading reinforced concrete post load device among the described step B.Said structure can disperse the bearing load value of former steel concrete post uniformly, avoids causing beam to produce new defective when unloading steel concrete column load.Simultaneously, can reduce the required maximum off-load value of single unloading reinforced concrete post load device, promptly effectively reduce the required appointed condition of substitution reinforcement.
In above-mentioned reinforced concrete post replacing and reinforcing method, behind completing steps C, the end that some reinforcing bars and this reinforcing bar all are set on the concrete chisel removal portion upper and lower end face of reinforced concrete post penetrates the concrete chisel removal end surface of corresponding reinforced concrete post, continues D, E, F step successively then.Implant reinforcing bar at grouting material and former concrete joint surface, strengthen bonding surface place shear resistance.
In above-mentioned reinforced concrete post replacing and reinforcing method, watering grouting agent process discontinuous tapping template in the described step e.Pouring process suitably tapping template further guarantees strengthening quality to get rid of bubble.
In above-mentioned reinforced concrete post replacing and reinforcing method, the grouting agent that cuts grouting mouthful place behind the described completing steps F reaches to be fitted up the grouting agent surface.Whitewash, can not stay reinforcement trace behind the finishings such as batch putty, swabbing, guaranteed the aesthetic property of the reinforced concrete post behind the substitution reinforcement.
The above-mentioned reinforced concrete post load device of a kind of unloading is characterized in that it comprises the Zhi Dingzhu that can be supported on this layer beam, is provided with the hydraulic lift mechanism that can make the Zhi Dingzhu lifting in the both sides of Zhi Dingzhu.
In the above-mentioned reinforced concrete post load device of above-mentioned unloading, described hydraulic lift mechanism comprises the supporting leg that is connected in the Zhi Dingzhu two bottom sides, is connected with in the supporting leg bottom and can places ground hydraulic cylinder, and described hydraulic cylinder is connected with hydraulic pump.
In the above-mentioned reinforced concrete post load device of above-mentioned unloading, be connected with oil pressure gauge on described hydraulic pump and/or the hydraulic cylinder.
In the above-mentioned reinforced concrete post load device of above-mentioned unloading, the top of described Zhi Dingzhu is fixed with top board, and the bottom of Zhi Dingzhu is fixed with base plate.
In the above-mentioned reinforced concrete post load device of above-mentioned unloading, described Zhi Dingzhu adopts i iron to make.
Compared with prior art, this reinforced concrete post replacing and reinforcing method has the advantage that does not change former column cross-section size, do not stay reinforcement trace.Cement-based grouting material caking property is good, microdilatancy, adopts cement-based grouting material can guarantee can not produce the crack, interface that causes because of contraction after adhesion stress good between grouting material and concrete interface and the sclerosis of grouting material as replacing material, guarantees strengthening quality; The development of cement-based grouting material early strength is fast, therefore can early tear open Zhi Dingzhu and template, reduction of erection time.This unloading reinforced concrete post load device adopts the hydraulic pump application of force, has the advantage of the big and uniform force application of the strength of applying.
Description of drawings
Fig. 1 is the structural representation of this unloading reinforced concrete post load device.
Fig. 2 is the structural representation of A-A among Fig. 1.
Fig. 3 is the another kind of structural representation of A-A among Fig. 1.
Fig. 4 is a structural representation in this reinforced concrete post replacing and reinforcing method step.
Among the figure, 1, reinforced concrete post; 2, Zhi Dingzhu; 3, supporting leg; 4, top board; 5, base plate; 6, hydraulic cylinder; 7, hydraulic pump; 8, oil pressure gauge; 9, this layer beam; 10, grade beam; 11, crude steel bar; 12, reinforcing bar; 13, grouting mouth; 14, template.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, this unloading reinforced concrete post load device comprises Zhi Dingzhu 2, hydraulic lift mechanism, base plate 5, top board 4.
Specifically, Zhi Dingzhu 2 adopts i iron to make, and is fixed with top board 4 on the top of Zhi Dingzhu 2, is fixed with base plate 5 in the bottom of Zhi Dingzhu 2.
Hydraulic lift mechanism comprises the supporting leg 3 that is connected in Zhi Dingzhu 2 two bottom sides, is connected with in supporting leg 3 bottoms and can places ground hydraulic cylinder 6, and hydraulic cylinder 6 is connected with hydraulic pump 7 by high-pressure oil pipe, is connected with oil pressure gauge 8 on hydraulic pump 7.
This reinforced concrete post replacing and reinforcing method comprise get the raw materials ready, unload, cut, formwork, displacement, form removal step.This method is applicable to that reinforced concrete post 1 does not form interlayer, major defect such as loose or suffers destructions such as burn into freeze injury, fire scaling loss because of concrete strength reaches design load, constuction joint intersection, need the concrete situation of whole or local displacement defectiveness, especially require the situation that does not change former column cross-section size, do not stay reinforcement trace.
Specifically, this replacing and reinforcing method carries out according to the following steps:
1, gets the raw materials ready: prepare unloading reinforced concrete post 1 load device, template 14, cement-based grouting material.
2, unloading: at first, calculate load and the bearing capacity that checks the Zhi Dingzhu 2 in unloading reinforced concrete post 1 load device and stable that former steel concrete post 1 bears.As depicted in figs. 1 and 2, for guaranteeing original structure, member safety, axial symmetry is provided with Zhi Dingzhu 2 in the both sides of reinforced concrete post 1, guarantees that beam and other members are stressed even when unloading reinforced concrete post 1 load, avoids causing injury once more.When bearing load is big, as shown in Figure 3, can be around reinforced concrete post 1 four Zhi Dingzhu 2 of symmetric arrangement, and Zhi Dingzhu 2 is linked to be integral body with crude steel bar 11 or reinforcing bar spot welding.
Zhi Dingzhu 2 between grade beam 10 and this layer beam 9 and Zhi Dingzhu 2 tops be resisted against this layer Liang9Chu, Zhi Dingzhu 2 bottoms rely on the ground, if between Zhi Dingzhu 2 bottoms and lower floor's top surface of the beam the space is arranged, the wedging of usefulness iron wedge.The cylinder body of hydraulic cylinder 6 is positioned on the ground, and piston rod is resisted against on the bottom surface of supporting leg 3, starts each hydraulic pump 7 lifting piston rods promotion Zhi Dingzhu 2 uniformly and makes Zhi Dingzhu 2 unload reinforced concrete post 1 load slowly.Above-mentioned oil pressure gauge 8 indicating values control unload forces, this power value should equal former steel concrete post 1 bearing load value.
When top reinforcement concrete column 1 substitution reinforcement, should begin successively to be provided with wooden support column from bottom at the bottom of Zhi Dingzhu 2 lower floor's beams at Zhi Dingzhu 2 positions, prevent that this position from producing shear crack.
3, cut: the concrete that cuts and clear up reinforced concrete post 1 defective face place.Not handy weight is pounded suddenly when cutting concrete column, should guarantee that the beam and slab structure that links to each other with former steel concrete post 1 is not damaged and post in the injury-free and bending of main muscle, the post upper and lower side concrete that cuts should be smooth, and the concrete chip of post master muscle adhesion is cleaned out and set upright.Need carry out bar planting, welding or assembling reinforcement in case of necessity.
As shown in Figure 4, if integral body cuts concrete, for guaranteeing effectively Transfer of Shear of bonding surface, at boring of bonding surface place and implantation reinforcing bar 12, implantation depth is 10～15 times of reinforcing bar 12 diameters.If the part cuts concrete, cutting the degree of depth should be less than 60mm, and can bar planting on the post core concrete that keeps, and method is the same.
4, formwork and displacement: as shown in Figure 4, concrete surface is rinsed well with press water, fully moistening (comprising template 14), the post root must not stay ponding.Install template 14 in reinforced concrete post 1 concrete chisel removal portion periphery after the passed examination, the upper and lower side of template 14 is fitted and sealing respectively at concrete chisel removal portion top and the bottom concrete.Be provided with the grouting mouth 13 that the concrete chisel removal portion upper surface that is higher than reinforced concrete post 1 is trumpet type in the upper end of template 14.
Cement-based grouting material is stirred and water concrete chisel removal portion to above-mentioned reinforced concrete post 1 according to code requirement, the upper and lower side concrete of the concrete chisel removal portion of cement-based grouting material and reinforced concrete post 1 is binded; Pouring process suitably tapping template 14 is made some test blocks simultaneously to get rid of bubble.
5, form removal: at first, treat that cement-based grouting material sclerosis is shaped after, stripping 14 also carries out maintenance; Then, remove unloading reinforced concrete post 1 load device, cut grouting mouthful place's cement-based grouting material and all surface is whitewashed, criticizes finishings such as putty, swabbing by former designing requirement.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used reinforced concrete post 1 morely; Zhi Dingzhu 2; Supporting leg 3; Top board 4; Base plate 5; Hydraulic cylinder 6; Hydraulic pump 7; Oil pressure gauge 8; This layer of beam 9; Grade beam 10; Crude steel bar 11; Reinforcing bar 12; Grouting mouth 13; Template 14 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (5)
1. a unloading reinforced concrete post load device is characterized in that, it comprises the Zhi Dingzhu (2) that can be supported on this layer beam (9), is provided with the hydraulic lift mechanism that can make Zhi Dingzhu (2) lifting in the both sides of Zhi Dingzhu (2).
2. unloading reinforced concrete post load device according to claim 1, it is characterized in that, described hydraulic lift mechanism comprises the supporting leg (3) that is connected in Zhi Dingzhu (2) two bottom sides, be connected with in supporting leg (3) bottom and can place ground hydraulic cylinder (6), described hydraulic cylinder (6) is connected with hydraulic pump (7).
3. unloading reinforced concrete post load device according to claim 2 is characterized in that, is connected with oil pressure gauge (8) on described hydraulic pump (7) and/or the hydraulic cylinder (6).
4. according to claim 1 or 2 or 3 described unloading reinforced concrete post load devices, it is characterized in that the top of described Zhi Dingzhu (2) is fixed with top board (4), the bottom of Zhi Dingzhu (2) is fixed with base plate (5).
5. according to claim 1 or 2 or 3 described unloading reinforced concrete post load devices, it is characterized in that described Zhi Dingzhu (2) adopts i iron to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201580590U CN201778499U (en) | 2010-04-08 | 2010-04-08 | Device for unloading reinforced concrete columns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201580590U CN201778499U (en) | 2010-04-08 | 2010-04-08 | Device for unloading reinforced concrete columns |
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| CN201778499U true CN201778499U (en) | 2011-03-30 |
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| CN2010201580590U Expired - Fee Related CN201778499U (en) | 2010-04-08 | 2010-04-08 | Device for unloading reinforced concrete columns |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899907A (en) * | 2010-04-08 | 2010-12-01 | 台州建筑安装工程公司 | Reinforced concrete column replacing and reinforcing method and device for unloading load of reinforced concrete column |
| CN103835524A (en) * | 2014-03-09 | 2014-06-04 | 湖南金海钢结构股份有限公司 | Load-bearing floor steel beam section diminishing method according to design change |
| CN109457993A (en) * | 2018-11-16 | 2019-03-12 | 中铁二十三局集团第四工程有限公司 | A kind of concrete column restoring and fastening method |
-
2010
- 2010-04-08 CN CN2010201580590U patent/CN201778499U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899907A (en) * | 2010-04-08 | 2010-12-01 | 台州建筑安装工程公司 | Reinforced concrete column replacing and reinforcing method and device for unloading load of reinforced concrete column |
| CN101899907B (en) * | 2010-04-08 | 2015-02-11 | 台州建筑安装工程公司 | Reinforced concrete column replacing and reinforcing method and device for unloading load of reinforced concrete column |
| CN103835524A (en) * | 2014-03-09 | 2014-06-04 | 湖南金海钢结构股份有限公司 | Load-bearing floor steel beam section diminishing method according to design change |
| CN103835524B (en) * | 2014-03-09 | 2017-01-25 | 湖南金海钢结构股份有限公司 | Load-bearing floor steel beam section diminishing method according to design change |
| CN109457993A (en) * | 2018-11-16 | 2019-03-12 | 中铁二十三局集团第四工程有限公司 | A kind of concrete column restoring and fastening method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20150408 |
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| EXPY | Termination of patent right or utility model |