CN103452328B - Post brutal bracing means and method is subtracted for reinforced concrete member - Google Patents
Post brutal bracing means and method is subtracted for reinforced concrete member Download PDFInfo
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- CN103452328B CN103452328B CN201310285293.8A CN201310285293A CN103452328B CN 103452328 B CN103452328 B CN 103452328B CN 201310285293 A CN201310285293 A CN 201310285293A CN 103452328 B CN103452328 B CN 103452328B
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Abstract
The present invention relates to and a kind ofly subtract post brutal bracing means and method for reinforced concrete member, reinforced steel concrete girder can be realized and reach dismounting pillar, meet the object of room layout and using function, utilize steel pipe four pin pillar to substitute the supporting role of reinforced concrete column, then complete enhancing and the reinforcing of reinforced concrete girder.In the both sides of reinforced concrete column, two steel pipe four pin pillars are set, at steel pipe four pin column upper section, utilize jack that steel pipe top beam is shored the bottom of reinforced concrete girder, be reached through the load that above device transmits reinforced concrete girder, substitute the object of reinforced concrete column.Then excise reinforced concrete column, installation form concreting, realize the object that reinforced concrete girder is reinforced.The present invention makes easily, easy for installation, with strong points, simple to operate, solves a difficult problem for steel concrete wall beam strengthen, has good economic benefit and social benefit.
Description
Technical field
What the invention belongs to reinforced concrete member subtracts post brutal technical field, particularly relates to a kind ofly subtracting post brutal bracing means and method for reinforced concrete member.
Background technology
General in reinforced concrete frame structure construction work, by reinforced concrete girder, building load is passed to reinforced concrete column, final load is delivered to basis.Expanding room area to meet using function, often needing remove pillar and reinforce wall beam.But wall beam cannot meet supporting capacity requirement after pillar dismounting, method is improper easily brings potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly subtracts post brutal bracing means and method for reinforced concrete member, makes easily, easy for installation, with strong points, simple to operate, improves efficiency of construction, ensure that workmanship, reduce engineering cost.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of and subtract post brutal bracing means for reinforced concrete member, comprise jack, described jack is arranged on steel pipe four pin pillar, the jack-up end on described jack top is equipped with force transmission element, described force transmission element forms multidiameter outward, lower outer diameter is comparatively large and end face has blind hole, the jack-up end of described jack is arranged on force transmission element bottom compared with in the blind hole of large end face, described force transmission element upper end diameter comparatively small end is provided with steel pipe top beam, described steel pipe top beam is made up of steel pipe connected vertically below upper end top board and top board, described pipe diameter and force transmission element upper end diameter comparatively small end match.
The upper end top board of described back timber part is connected with welding manner with steel pipe connected vertically below top board.
A wall beam Enhancement Method for steel concrete wall beam strengthen device, step is as follows:
A, described bracing means is arranged on reinforced concrete column both sides below girder, steel pipe top beam upper end top board withstands below girder by adjustment jack;
B, remove reinforced concrete column, only with bracing means support girder;
C, by after cleaning out below girder, below girder, use the stupefied bar of steel pipe support, the lumps of wood, wooden form and supporting steel pipe that concrete grouting mould is set, reserved concrete pouring gate
D, placing of concrete;
After the wall beam reinforced concrete set strength of e, pouring reaches requirement, remove steel pipe support, the stupefied bar of the lumps of wood, wooden form and supporting steel pipe, removing the pouring concrete port part cross section left over is leg-of-mutton plain concrete;
F, adjustment jack unclamp bracing means and remove, and then remove force transmission element, finally adopt pea gravel concreten to close left hole.
In described steps d, during placing of concrete, the face of building of pouring concrete port part is higher than original bottom plane of main girder 2cm.
Beneficial effect
Present invention accomplishes pillar remove after the requirement of girder supporting capacity, provide novel effective device and solution, be conducive to raising the efficiency and reduce costs, there is good application and promotional value, make easily, easy for installation, with strong points, simple to operate.
Accompanying drawing explanation
Fig. 1 is the view in the present invention after completing steps e.
Fig. 2 is the view in the present invention after completing steps f.
Fig. 3 is the head schematic diagram under bracing means of the present invention is arranged on girder.
Fig. 4 is the elevational schematic view of steel pipe four pin pillar of the present invention.
Fig. 5 is the cross section structure schematic diagram that girder interlude of the present invention arranges concrete grouting mould.
Fig. 6 is the cross section structure schematic diagram in the present invention after completing steps e.
Fig. 7 is the longitudinal section sectional structure schematic diagram after bracing means of the present invention is installed.
Fig. 8 is the longitudinal profile schematic diagram of steel pipe top beam of the present invention.
Fig. 9 is the upward view of Fig. 8 of the present invention.
Figure 10 is the longitudinal profile schematic diagram of force transmission element of the present invention.
Figure 11 is the top view of Figure 10 of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
As shown in Fig. 1 to 11, a kind ofly subtract post brutal bracing means for reinforced concrete member, comprise jack 14, described jack 14 is arranged on steel pipe four pin pillar 4, the jack-up end on described jack 14 top is equipped with force transmission element 12, multidiameter is formed outside described force transmission element 12, lower outer diameter is comparatively large and end face has blind hole, the jack-up end of described jack 14 is arranged on force transmission element 12 bottom compared with in the blind hole of large end face, described force transmission element 12 upper end diameter comparatively small end is provided with steel pipe top beam 11, described steel pipe top beam 11 is made up of steel pipe connected vertically below upper end top board and top board, described pipe diameter and force transmission element 12 upper end diameter comparatively small end match.
The upper end top board of described back timber part 11 is connected with welding manner with steel pipe connected vertically below top board.
A wall beam Enhancement Method for steel concrete wall beam strengthen device, step is as follows:
A, described bracing means is arranged on reinforced concrete column 3 both sides below girder 1, steel pipe top beam 11 upper end top board withstands below girder 1 by adjustment jack 14;
B, remove reinforced concrete column 3, only with bracing means support girder 1;
C, girder 1 is cleaned out below after, below girder 1, use the stupefied bar 6 of steel pipe support 5, the lumps of wood, wooden form 7 and supporting steel pipe 8 that concrete grouting mould is set, reserved concrete pouring gate 9
D, placing of concrete;
After wall beam reinforced concrete 10 set strength of e, pouring reaches requirement, remove steel pipe support 5, the stupefied bar 6 of the lumps of wood, wooden form 7 and supporting steel pipe 8, removing the cross section, concrete pouring gate 9 position left over is leg-of-mutton plain concrete;
F, adjustment jack 14 unclamp bracing means and remove, and then remove force transmission element 12, finally adopt pea gravel concreten to close left hole.
In described steps d, during placing of concrete, the face of building at concrete pouring gate 9 position is higher than original girder 1 bottom surface 2cm.
Fig. 1 middle girder 1 by bracing means for pillar: in order to the girder 1 realizing reinforced steel concrete reaches dismounting pillar, meet the object of room layout and using function.First utilize the devices such as steel pipe four pin pillar 4 and top jack 14 to substitute the supporting role of reinforced concrete column 3, bearing bar concrete girder 1, then excise reinforced concrete column 3.
In Fig. 2, the girder 1 of steel concrete removes bracing means after reinforcing: treat that completion reinforced by the girder 1 of steel concrete, and concrete reaches intensity, i.e. dismountable four bracing or strutting arrangements such as pin pillar 4 grade, reach the object of reinforced steel concrete girder 1 and removal reinforced concrete column 3.
Reinforced concrete girder model sheetinstallat situation in Fig. 3: before the template system reinforced for reinforced concrete girder 1 is installed, reinforced concrete girder 1 bottom concrete bottom will be cleaned out, and reaches the requirement about constuction joint of relevant specification and standard.When template system is installed, the stupefied bar 6 of steel pipe support 5, the lumps of wood, wooden form 7, supporting steel pipe 8, concrete pouring gate 9 constitute the template system of reinforcing steel bar concrete beam, and the colligation of reinforcing steel bar concrete beam reinforcing skeleton and installation are carried out with model sheetinstallat synchronous matching.Treat that above work completes, get final product concreting, complete the making of reinforcing steel bar concrete beam.During concreting, in order to ensure the concrete density of wall beam reinforced concrete 10, when concreting is to last, the face of building at concrete pouring gate 9 position is higher than the girder 1 bottom surface 2cm of original steel concrete, and sprue gate Formation cross-section is leg-of-mutton plain concrete.
Reinforced concrete girder support zone model sheetinstallat situation in Fig. 5: girder 1 bracing or strutting arrangement of steel concrete and model sheetinstallat match, plays the supporting role of device such as steel pipe four pin pillar 4 grade all the time, guarantees that work progress is implemented smoothly.Steel pipe four pin pillar 4 is made up of 4 steel pipes and two block plates, and two block plates are welded in steel pipe two ends respectively as shown in the figure, plays the effect of pressure and the going down load bearing jack 14.
Situation in Fig. 6 after reinforced concrete girder form removal: after the template system dismounting of girder 1, leg-of-mutton plain concrete 13 excises in time.When steel pipe four pin pillar 4 is removed, first and remove loosening jack 14, then remove force transmission element 12, the left back hole utilizing concrete to be left over by support zone is closed.
Bracing or strutting arrangement installation situation in Fig. 7: when bracing or strutting arrangement is installed, first steel pipe four pin pillar 4 is set, require that the bottom face of steel pipe four pin pillar 4 is hard, smooth and there is enough supporting capacitys, then jack 14 is set on steel pipe four pin pillar 4 top, utilize force transmission element 12 that steel pipe top beam 11 is withstood on reinforced concrete girder 1 bottom, reach the object of displacement reinforced concrete column 3.
In Fig. 8 to 11, bracing or strutting arrangement is made up of steel pipe top beam 11, force transmission element 12, jack 14.Steel pipe top beam 11 is formed by steel plate and steel-pipe welding, and force transmission element 12 is made by steel, and the bearing capacity of jack 14 is selected according to actual conditions.
Claims (4)
1. one kind subtracts post brutal bracing means for reinforced concrete member, comprise jack (14), it is characterized in that, described jack (14) is arranged on steel pipe four pin pillar (4), the jack-up end on described jack (14) top is equipped with force transmission element (12), described force transmission element (12) forms multidiameter outward, lower outer diameter is comparatively large and end face has blind hole, the jack-up end of described jack (14) is arranged on force transmission element (12) bottom compared with in the blind hole of large end face, described force transmission element (12) upper end diameter comparatively small end is provided with steel pipe top beam (11), described steel pipe top beam (11) is made up of steel pipe connected vertically below upper end top board and top board, described pipe diameter and force transmission element (12) upper end diameter comparatively small end match.
2. according to claim 1ly a kind ofly subtract post brutal bracing means for reinforced concrete member, it is characterized in that, the upper end top board of described back timber part (11) is connected with welding manner with steel pipe connected vertically below top board.
3., according to a kind of wall beam Enhancement Method subtracting post brutal bracing means for reinforced concrete member described in claim 1 or 2, step is as follows:
A, bracing means is arranged on reinforced concrete column (3) both sides of girder (1) below, steel pipe top beam (11) upper end top board withstands below girder (1) by adjustment jack (14);
B, remove reinforced concrete column (3), only with bracing means support girder (1);
C, girder (1) is cleaned out below after, use steel pipe support (5), the stupefied bar of the lumps of wood (6), wooden form (7) and supporting steel pipe (8) that concrete grouting mould is set in girder (1) below, reserved concrete pouring gate (9);
D, placing of concrete;
After wall beam reinforced concrete (10) set strength of e, pouring reaches requirement, remove steel pipe support (5), the stupefied bar of the lumps of wood (6), wooden form (7) and supporting steel pipe (8), removing concrete pouring gate (9) cross section, position left over is leg-of-mutton plain concrete;
F, adjustment jack (14) are unclamped bracing means and remove, and then remove force transmission element (12), finally adopt pea gravel concreten to close left hole.
4. a kind of wall beam Enhancement Method according to claim 3, is characterized in that, in described steps d, during placing of concrete, the face of building at concrete pouring gate (9) position is higher than original girder (1) bottom surface 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310285293.8A CN103452328B (en) | 2013-07-08 | 2013-07-08 | Post brutal bracing means and method is subtracted for reinforced concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310285293.8A CN103452328B (en) | 2013-07-08 | 2013-07-08 | Post brutal bracing means and method is subtracted for reinforced concrete member |
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| Publication Number | Publication Date |
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| CN103452328A CN103452328A (en) | 2013-12-18 |
| CN103452328B true CN103452328B (en) | 2016-01-20 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106812335B (en) * | 2017-01-20 | 2019-02-01 | 湖南大学 | The equipment and construction method of haftplatte Shear Strengthening concrete component |
| CN107740538B (en) * | 2017-10-16 | 2023-11-10 | 杭萧钢构（安徽）有限公司 | Steel upright post structure and application method thereof |
| CN110043060B (en) * | 2019-03-29 | 2021-05-18 | 杭州通达集团有限公司 | Method for changing floor frame column into beam-on-column structure |
| CN111140033B (en) * | 2020-01-20 | 2024-04-09 | 广东华科大建筑技术开发有限公司 | Device for partially detaching supporting roof of vertical stress component and construction method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147655C (en) * | 2001-09-29 | 2004-04-28 | 李全贵 | Method for changing ridgepole by lifting roof |
| JP4297854B2 (en) * | 2004-09-14 | 2009-07-15 | 株式会社竹中工務店 | Load provision method |
| GB2443181A (en) * | 2006-10-27 | 2008-04-30 | Christopher Nicholls | Screwed support jack |
| CN201671356U (en) * | 2010-04-24 | 2010-12-15 | 林光明 | Early form removal supporting system |
| CN102644386A (en) * | 2012-04-28 | 2012-08-22 | 上海建工集团股份有限公司 | Unloading control method for steel structure temporary bracing |
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Address after: 201999 room A, room 1325, Mudanjiang Road, Shanghai, Baoshan District, 403 Patentee after: SHANGHAI MCC NO.13 CONSTRUCTION CO., LTD. Address before: 201999 room A, room 1325, Mudanjiang Road, Shanghai, Baoshan District, 403 Patentee before: CMTCC Shanghai Shisanye Construction Co., Ltd. |
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Address after: 201999 room A, room 1325, Mudanjiang Road, Shanghai, Baoshan District, 403 Patentee after: Shanghai twenty Metallurgical Construction Co., Ltd. Address before: 201999 room A, room 1325, Mudanjiang Road, Shanghai, Baoshan District, 403 Patentee before: SHANGHAI MCC NO.13 CONSTRUCTION CO., LTD. |
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Effective date of registration: 20190628 Address after: Room A, Room 403, 1325 Mudanjiang Road, Baoshan District, Shanghai, 20199 Co-patentee after: China Twenty Metallurgical Group Co., Ltd. Patentee after: Shanghai twenty Metallurgical Construction Co., Ltd. Address before: Room A, Room 403, 1325 Mudanjiang Road, Baoshan District, Shanghai, 20199 Patentee before: Shanghai twenty Metallurgical Construction Co., Ltd. |