CN103184725B - Framed girder equivalent deloading and reinforcing method - Google Patents
Framed girder equivalent deloading and reinforcing method Download PDFInfo
- Publication number
- CN103184725B CN103184725B CN201310072350.4A CN201310072350A CN103184725B CN 103184725 B CN103184725 B CN 103184725B CN 201310072350 A CN201310072350 A CN 201310072350A CN 103184725 B CN103184725 B CN 103184725B
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- Prior art keywords
- girder
- solid web
- vierendeel
- framed
- girders
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- Expired - Fee Related
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 abstract 3
- 230000002787 reinforcement Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
A framed girder equivalent deloading and reinforcing method for a building structure is realized in a manner that supports are arranged on the two sides of two end pillars of a framed girder; two truss girders or solid web girders are simply supported and placed on the supports; a force transmission girder provided with the two ends connected with the truss girders or the solid web girders is propped against the bottom surface of the framed girder; and partial floor load is transmitted to the two truss girders or the solid web girders through the force transmission girder, and is transmitted to a frame column through the supports on the frame column, so as to form a complete force transmission way, namely, the partial load of the framed girder is reduced, and the framed girder is reinforced.
Description
Technical field
The present invention relates to a kind of building structure frame beam equivalence off-load reinforcing method, especially Vierendeel girder is not strengthened, born load only passes to post with the form of Vertical Concentrated Force by ruggedized construction, newly-increased moment of flexure is not produced to original structure, the Vierendeel girder reinforcement means of easy construction.
Background technology
At present, the reinforcing of building structure frame beam adopts the methods such as steel-bonded reinforcement, sticky carbon fiber reinforcement, enlarging section reinforcing or the reinforcing of external prestressing pull bar more.When adopting steel bonding, sticky carbon fiber or enlarging section reinforcement means to reinforce Vierendeel girder, be all carry out reinforcing to the bearing capacity of Vierendeel girder own to improve, the beam-ends moment of flexure of Vierendeel girder can increase to some extent, can increase the moment of flexure burden of post; When adopting external prestressing pull bar reinforcement means to reinforce Vierendeel girder, break floor, wear pull rod construction more difficult, tension stress controls complicated.
Summary of the invention
In order to overcome steel-bonded reinforcement, sticky carbon fiber reinforcement, enlarging section reinforce and the deficiency of external prestressing pull bar reinforcement means, the invention provides a kind of reinforcement means of building structure frame beam, the reinforcement means of this Vierendeel girder is not strengthened Vierendeel girder, born load is only passed to post with the form of Vertical Concentrated Force by ruggedized construction, newly-increased moment of flexure is not produced to original structure, structure is simple, easy construction.
The technical solution adopted for the present invention to solve the technical problems is: in the both sides of Vierendeel girder two newel post, be positioned at certain altitude at the bottom of Vierendeel girder and respectively do a bearing, article two, identical girder truss or solid web girder freely-supported are shelved on the bearing of post both sides, and the end is omited than at the bottom of Vierendeel girder in girder truss or solid web girder top; Article two, girder truss or solid web girder connect a transfer beam at Vierendeel girder mid point position, and this transfer beam holds out against bottom surface in the middle part of Vierendeel girder; Article two, girder truss or solid web girder are connected by many lateral stability bars, ensure stability; As required, two identical girder trusses or solid web girder also can a certain amount of distortion of pre-add, form prestressing force, strengthen effect.
The invention has the beneficial effects as follows, can when not producing moment of flexure to original structure, structure is simple, easy construction.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the structure principle chart of the embodiment of the present invention.
Fig. 2 is the 1-1 sectional view of Fig. 1.
Fig. 3 is the 2-2 sectional view of Fig. 1.
In figure, (1) waits to reinforce Vierendeel girder, (2) floor plate, (3) frame column, (4) post upper bracket, (5) girder truss or solid web girder, (6) transfer beam, (7) lateral stability bar.
Detailed description of the invention
In FIG, post upper bracket (4) is fixed on frame column (3), article two, girder truss or solid web girder (5) are connected by many lateral stability bars (7), freely-supported is shelved on post upper bracket (4), transfer beam (6) two ends are connected with two girder trusses or solid web girder (5), and hold out against the mid point bottom surface waiting to reinforce Vierendeel girder (1).Part floor load is delivered to two girder trusses or solid web girder (5) by transfer beam (6), frame column (3) is passed to again by post upper bracket (4), form complete force path, be equivalent to the fractional load decreasing Vierendeel girder, reach the object that reinforcing frame is set a roof beam in place.
Claims (1)
1. a building structure frame beam equivalence off-load reinforcing method, do bearing in the both sides of Vierendeel girder two newel post, two girder trusses or solid web girder freely-supported are shelved on bearing, and the end is omited than at the bottom of Vierendeel girder in girder truss or solid web girder top; Article two, girder truss or solid web girder connect a transfer beam at Vierendeel girder mid point position, and transfer beam holds out against Vierendeel girder bottom surface, it is characterized in that: two girder trusses or solid web girder hold out against Vierendeel girder bottom surface by transfer beam, and freely-supported is shelved in frame column side supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310072350.4A CN103184725B (en) | 2013-02-28 | 2013-02-28 | Framed girder equivalent deloading and reinforcing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310072350.4A CN103184725B (en) | 2013-02-28 | 2013-02-28 | Framed girder equivalent deloading and reinforcing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103184725A CN103184725A (en) | 2013-07-03 |
| CN103184725B true CN103184725B (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310072350.4A Expired - Fee Related CN103184725B (en) | 2013-02-28 | 2013-02-28 | Framed girder equivalent deloading and reinforcing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103184725B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112854812A (en) * | 2021-03-15 | 2021-05-28 | 重庆大学 | Seismic strengthening method for existing concrete beam containing steel truss |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011132765A (en) * | 2009-12-25 | 2011-07-07 | Sumitomo Metal Mining Siporex Kk | Reinforcing method and reinforcing structure of floor |
| CN102493342A (en) * | 2011-11-22 | 2012-06-13 | 中铁三局集团第六工程有限公司 | Static-load bracket preloading construction method of continuous beam |
| CN202688904U (en) * | 2012-05-14 | 2013-01-23 | 中交第一公路勘察设计研究院有限公司 | Small box girder steel plate adhesive pressurization device |
| CN102926333A (en) * | 2012-12-04 | 2013-02-13 | 成都博睿基桥梁技术有限责任公司 | External prestressed reinforcement structure for old bridge and construction method thereof |
| CN102936965A (en) * | 2012-11-20 | 2013-02-20 | 淮海工学院 | Method for strengthening reinforced concrete beam through distributed external prestressing cables |
-
2013
- 2013-02-28 CN CN201310072350.4A patent/CN103184725B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011132765A (en) * | 2009-12-25 | 2011-07-07 | Sumitomo Metal Mining Siporex Kk | Reinforcing method and reinforcing structure of floor |
| CN102493342A (en) * | 2011-11-22 | 2012-06-13 | 中铁三局集团第六工程有限公司 | Static-load bracket preloading construction method of continuous beam |
| CN202688904U (en) * | 2012-05-14 | 2013-01-23 | 中交第一公路勘察设计研究院有限公司 | Small box girder steel plate adhesive pressurization device |
| CN102936965A (en) * | 2012-11-20 | 2013-02-20 | 淮海工学院 | Method for strengthening reinforced concrete beam through distributed external prestressing cables |
| CN102926333A (en) * | 2012-12-04 | 2013-02-13 | 成都博睿基桥梁技术有限责任公司 | External prestressed reinforcement structure for old bridge and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN103184725A (en) | 2013-07-03 |
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| DD01 | Delivery of document by public notice |
Addressee: Xiong Renjie Document name: Notification of Acceptance of Patent Application |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fu Jinghua Inventor after: Xiong Renjie Inventor after: Wu Liangping Inventor after: He Chaoan Inventor before: Xiong Renjie Inventor before: Fu Jinghua Inventor before: Wu Liangping Inventor before: He Chaoan |
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| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20190228 |