CN102635246A - Bearing wall reinforcing body and method for reinforcing bearing wall by using same - Google Patents

Bearing wall reinforcing body and method for reinforcing bearing wall by using same Download PDF

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Publication number
CN102635246A
CN102635246A CN2012101471099A CN201210147109A CN102635246A CN 102635246 A CN102635246 A CN 102635246A CN 2012101471099 A CN2012101471099 A CN 2012101471099A CN 201210147109 A CN201210147109 A CN 201210147109A CN 102635246 A CN102635246 A CN 102635246A
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CN
China
Prior art keywords
load bearing
bearing
reinforced polymer
reinforcing
brickwork
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Pending
Application number
CN2012101471099A
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Chinese (zh)
Inventor
卢亦焱
李晓瑾
李杉
李娜
龚田牛
薛继锋
梁鸿骏
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Wuhan University WHU
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Wuhan University WHU
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Publication date
Application filed by Wuhan University WHU filed Critical Wuhan University WHU
Priority to CN2012101471099A priority Critical patent/CN102635246A/en
Publication of CN102635246A publication Critical patent/CN102635246A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a bearing wall reinforcing body and a method for reinforcing a bearing wall by using the same. The reinforcing body comprises a rigid mesh layer, and a fiber reinforced polymer layer (5) is arranged at one side of the rigid mesh layer. The method provided by the invention has the following advantages: the method is applicable to reinforcement on common brickwork bearing walls, organically combines the advantages of reinforcement of the fiber reinforced polymer FRP and reinforcement of a steel plate screen and reinforcement mesh, thus not only improving the whole property and collapse resistance capacity of brickwork walls, but also increasing the brickwork rigidity, improving the axial load bearing capacity and shearing-resistance bearing capacity of the brickwork, improving the anti-shock property of the brickwork, and being good in reinforcement effect; and the method not only is good in reinforcement effect and high in reliability, but also is simple to operate, convenient to construct, does not need special construction tools, needs small size increase of the brickwork, does not influence production, has high economic benefits and is especially applicable to large-scale maintenance and reinforcement on the bearing walls with brickwork structures.

Description

The method that a kind of load bearing wall adds solid and utilizes it that load bearing wall is reinforced
Technical field
The present invention relates to building and civil engineering structures reinforcing technique field, the method that a kind of specifically load bearing wall adds solid and utilizes it that load bearing wall is reinforced.
Background technology
Masonry structure is a kind of architecture structure form with long history of China, and at present, many buildings that China continues to use still belong to masonry structure.But masonry structure resistance to compression, tension, shear strength are low, poor seismic behavior, and problems such as member cracking, bearing capacity deficiency can appear in long-term use.In addition, the storey-adding reconstruction of masonry structure or function of use change etc. all can cause the bearing capacity of original structure not enough, need reinforce the bearing capacity that improves structure to supporting member.
At present, allowable ratio of height to sectional thickness of masonry wall or column reinforcement means commonly used is mesh reinforced cement mortar reinforcing method and outer sticking fiber-reinforced polymer (Fiber Reinforced polymer is called for short FRP) reinforcing method.For mesh reinforced cement mortar reinforcing method, construction technology is simple, and applicability is strong, and masonry is reinforced the back bearing capacity and improved a lot.But the masonry structure globality is poor, and a little less than the ability of resistance to deformation, the raising of masonry bearing capacity is reinforced in restriction to a certain extent; For outer sticking fiber-reinforced polymer FRP reinforcing method, can improve the globality of allowable ratio of height to sectional thickness of masonry wall or column, the reinforcement deformability; But the capacity under axial effect to allowable ratio of height to sectional thickness of masonry wall or column is very little; Simultaneously, fiber-reinforced polymer FRP and masonry be connected a little less than, being prone to take place stripping damage influences consolidation effect.
Summary of the invention
The purpose of this invention is to provide the method that a kind of load bearing wall adds solid and utilizes it that load bearing wall is reinforced; Utilize fiber-reinforced polymer FRP to strengthen the globality and the deformability of allowable ratio of height to sectional thickness of masonry wall or column, utilize expanded metal lath or steel mesh reinforcement to improve the bearing capacity of allowable ratio of height to sectional thickness of masonry wall or column simultaneously, it is simple to make every effort to reinforcement process; Easy to operate; Little to the physical dimension increase, do not influence production, economic benefit is high.
Load bearing wall of the present invention adds solid, comprises the rigidity stratum reticulare, and said rigidity stratum reticulare one side is provided with fiber-reinforced polymer layer 5.
The opposite side of said rigidity stratum reticulare is provided with rubble English layer of sand 9.
Said rubble English layer of sand 9 outsides also are provided with antirust, decorative layer 10.
Said rigidity stratum reticulare is steel plate stratum reticulare 6 or reinforcing bar stratum reticulare 7.
Said fiber-reinforced polymer is carbon fiber reinforced polymer, glass fiber reinforced polymer, aramid fiber enhancing polymer or basalt fiber-reinforced polymer.
The place, reinforcing bar crosspoint of said reinforcing bar stratum reticulare 7 is provided with screw rod.
The present invention utilizes load bearing wall to add the method that solid is reinforced load bearing wall, and its step is following:
⑴ carry out preliminary treatment to the load bearing wall body of wall, obtains smooth surface of wall;
⑵ add load bearing wall the laminated surface of wall that is pasted on of fiber-reinforced polymer of solid;
⑶ employing connector adds solid with load bearing wall and closely is connected as a whole with the load bearing wall body of wall.
Load bearing wall of the present invention adds solid and utilizes its advantage to the method for load bearing wall reinforcing to be:
1, the present invention is applicable to the reinforcing to the ordinary masonry load bearing wall; The advantage of reinforcing fiber-reinforced polymer FRP reinforcing and expanded metal lath, steel mesh reinforcement organically combines; Not only improve the overall performance and the anti-ability of collapsing of allowable ratio of height to sectional thickness of masonry wall or column, and increase masonry rigidity, improve masonry capacity under axial and shear-carrying capacity; Improve the masonry anti-seismic performance, consolidation effect is good;
2, among the present invention; Expanded metal lath or steel mesh reinforcement can improve greatly between fiber-reinforced polymer FRP and the masonry and be connected more weak shortcoming; Guarantee fiber-reinforced polymer FRP in loading process with masonry compatibility of deformation, stressed jointly, prevent to occur peeling off between fiber-reinforced polymer FRP and the masonry;
3, not only consolidation effect is good in the present invention, and reliability is high, and simple to operate; Easy construction does not need special construction equipment, increases less to the masonry size; Do not influence production, economic benefit is high, is specially adapted to the masonry structure load bearing wall is keeped in repair on a large scale, reinforces.
Description of drawings
Fig. 1 is fixed in the structural representation on the load bearing wall for load bearing wall of the present invention adds solid.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Fig. 3 is fixed in the structural representation on the load bearing wall for load bearing wall of the present invention adds the another embodiment of solid.
Fig. 4 is that the B-B of Fig. 3 is to sectional view.
Wherein, 1 is load bearing wall, and 4 is the polymer cement mortar layer, and 5 is the fiber-reinforced polymer layer, and 6 is the steel plate stratum reticulare, and 7 is the reinforcing bar stratum reticulare, and 8 is bolt, and 9 is rubble English layer of sand, and 10 is antirust, decorative layer.
The specific embodiment
Embodiment one
Below in conjunction with accompanying drawing, the present invention is further specified: according to Fig. 1, shown in Figure 2, a kind of load bearing wall adds solid, comprises the rigidity stratum reticulare, and said rigidity stratum reticulare is a steel plate stratum reticulare 6, and said steel plate stratum reticulare 6 one sides are provided with fiber-reinforced polymer layer 5.
The opposite side of said steel plate stratum reticulare 6 is provided with rubble English layer of sand 9.
Said rubble English layer of sand 9 outsides also are provided with antirust, decorative layer 10.
Said fiber-reinforced polymer is carbon fiber reinforced polymer CFRP.
Said steel plate stratum reticulare 6 is welded for vertical, horizontal steel plate bar.
A kind of load bearing wall that utilizes adds the method that solid is reinforced load bearing wall, and its step is following:
⑴ root out load bearing wall exterior surface of wall decorative layer, and processing is holed, scrubbed to the load bearing wall body of wall; Adopt the polymer cement mortar layer to the load bearing wall surface of wall repair, smooth;
⑵ add load bearing wall on the laminated polymer cement mortar layer that is pasted on the load bearing wall body of wall through the fiber cementing agent of the fiber-reinforced polymer of solid;
⑶ adopt and to wearing bolt expanded metal lath strengthened being anchored in the load bearing wall surface of wall.
Embodiment two
Below in conjunction with accompanying drawing, the present invention is further specified: according to Fig. 3, shown in Figure 4, a kind of load bearing wall adds solid, comprises the rigidity stratum reticulare, and said rigidity stratum reticulare is a reinforcing bar stratum reticulare 7, and said reinforcing bar stratum reticulare 7 one sides are provided with fiber-reinforced polymer layer 5.
The opposite side of said reinforcing bar stratum reticulare 7 is provided with rubble English layer of sand 9.
Said rubble English layer of sand 9 outsides also are provided with antirust, decorative layer 10.
Said fiber-reinforced polymer is that aramid fiber strengthens polymer A FRP.
Said reinforcing bar stratum reticulare 7 is welded for the vertical, horizontal reinforcing bar.
The place, reinforcing bar crosspoint of said reinforcing bar stratum reticulare 7 is welded with screw rod.
A kind of load bearing wall that utilizes adds the method that solid is reinforced load bearing wall, and its step is following:
⑴ root out load bearing wall exterior surface of wall decorative layer, and processing is holed, scrubbed to the load bearing wall body of wall; Adopt the polymer cement mortar layer to the load bearing wall surface of wall repair, smooth;
⑵ add load bearing wall on the laminated polymer cement mortar layer that is pasted on the load bearing wall body of wall through the fiber cementing agent of the fiber-reinforced polymer of solid;
⑶ encapsulating in the bolt hole that offer on the load bearing wall body of wall is in the screw rod inserting bolt hole that is welded on the steel mesh reinforcement, in the anchoring of the load bearing wall body of wall other end.
Above-described specific embodiment; The object of the invention, technical scheme and useful result have been carried out further detailed description, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All in spirit of the present invention and principle and so on, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. a load bearing wall adds solid, comprises the rigidity stratum reticulare, it is characterized in that: said rigidity stratum reticulare one side is provided with fiber-reinforced polymer layer ⑸.
2. load bearing wall as claimed in claim 1 adds solid, it is characterized in that: the opposite side of said rigidity stratum reticulare is provided with rubble English layer of sand ⑼.
3. load bearing wall as claimed in claim 2 adds solid, it is characterized in that: the said rubble English layer of sand ⑼ outside also is provided with antirust, decorative layer ⑽.
4. add solid like each described load bearing wall of claim 1-3, it is characterized in that: said rigidity stratum reticulare is steel plate stratum reticulare ⑹ or reinforcing bar stratum reticulare ⑺.
5. add solid like each described load bearing wall of claim 1-3, it is characterized in that: said fiber-reinforced polymer is carbon fiber reinforced polymer, glass fiber reinforced polymer, aramid fiber enhancing polymer or basalt fiber-reinforced polymer.
6. load bearing wall as claimed in claim 4 adds solid, it is characterized in that: the place, reinforcing bar crosspoint of said reinforcing bar stratum reticulare ⑺ is provided with screw rod.
7. utilize the described load bearing wall of claim 1 to add the method to the load bearing wall reinforcing of solid, it is characterized in that, comprise following steps:
⑴ carry out preliminary treatment to the load bearing wall body of wall, obtains smooth surface of wall;
⑵ add load bearing wall the laminated surface of wall that is pasted on of fiber-reinforced polymer of solid;
⑶ employing connector adds solid with load bearing wall and is connected as a whole with the load bearing wall body of wall.
CN2012101471099A 2012-05-14 2012-05-14 Bearing wall reinforcing body and method for reinforcing bearing wall by using same Pending CN102635246A (en)

Priority Applications (1)

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CN2012101471099A CN102635246A (en) 2012-05-14 2012-05-14 Bearing wall reinforcing body and method for reinforcing bearing wall by using same

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Application Number Priority Date Filing Date Title
CN2012101471099A CN102635246A (en) 2012-05-14 2012-05-14 Bearing wall reinforcing body and method for reinforcing bearing wall by using same

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105178623A (en) * 2015-08-28 2015-12-23 河海大学 Double-layer profiled steel plate reinforced infilled-wall frame and construction method thereof
CN105863290A (en) * 2016-04-20 2016-08-17 上海市建筑科学研究院 Method for reinforcing masonry wall without structural columns by sticking environmentally-friendly textile fabric
CN105888280A (en) * 2016-04-20 2016-08-24 上海市建筑科学研究院 Method for reinforcing brickwork wall by sticking bamboo mat
CN105888283A (en) * 2016-05-10 2016-08-24 郑州大学 Method for reinforcing reinforced concrete shear wall structure by using FRP grid strengthened ECC strips
CN109914849A (en) * 2019-04-02 2019-06-21 郑州航空工业管理学院 A kind of FRP wall reinforcement device and reinforcement means

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201011136Y (en) * 2007-03-16 2008-01-23 中国建筑科学研究院 Steel stranded wire and polymer mortar combined strengthening structure
CN101852021A (en) * 2010-04-27 2010-10-06 武汉大学 Liner body structure reinforcing method
CN201649682U (en) * 2010-04-27 2010-11-24 武汉大学 Compound reinforcing concrete flexural member
CN201953087U (en) * 2011-04-02 2011-08-31 武汉大学 Reinforcing device for concrete bending member
JP4797184B2 (en) * 2006-03-08 2011-10-19 清水建設株式会社 Seismic wall structure and construction method
CN202578022U (en) * 2012-05-14 2012-12-05 武汉大学 Bearing wall reinforcing body

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4797184B2 (en) * 2006-03-08 2011-10-19 清水建設株式会社 Seismic wall structure and construction method
CN201011136Y (en) * 2007-03-16 2008-01-23 中国建筑科学研究院 Steel stranded wire and polymer mortar combined strengthening structure
CN101852021A (en) * 2010-04-27 2010-10-06 武汉大学 Liner body structure reinforcing method
CN201649682U (en) * 2010-04-27 2010-11-24 武汉大学 Compound reinforcing concrete flexural member
CN201953087U (en) * 2011-04-02 2011-08-31 武汉大学 Reinforcing device for concrete bending member
CN202578022U (en) * 2012-05-14 2012-12-05 武汉大学 Bearing wall reinforcing body

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105178623A (en) * 2015-08-28 2015-12-23 河海大学 Double-layer profiled steel plate reinforced infilled-wall frame and construction method thereof
CN105863290A (en) * 2016-04-20 2016-08-17 上海市建筑科学研究院 Method for reinforcing masonry wall without structural columns by sticking environmentally-friendly textile fabric
CN105888280A (en) * 2016-04-20 2016-08-24 上海市建筑科学研究院 Method for reinforcing brickwork wall by sticking bamboo mat
CN105888283A (en) * 2016-05-10 2016-08-24 郑州大学 Method for reinforcing reinforced concrete shear wall structure by using FRP grid strengthened ECC strips
CN109914849A (en) * 2019-04-02 2019-06-21 郑州航空工业管理学院 A kind of FRP wall reinforcement device and reinforcement means

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Application publication date: 20120815