CN202925925U - Reinforcing device for brick masonry wall - Google Patents

Reinforcing device for brick masonry wall Download PDF

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Publication number
CN202925925U
CN202925925U CN 201220576454 CN201220576454U CN202925925U CN 202925925 U CN202925925 U CN 202925925U CN 201220576454 CN201220576454 CN 201220576454 CN 201220576454 U CN201220576454 U CN 201220576454U CN 202925925 U CN202925925 U CN 202925925U
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China
Prior art keywords
brick
wall
masonry wall
brick masonry
surface layer
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CN 201220576454
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邓明科
梁兴文
高晓军
樊鑫淼
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Abstract

The utility model discloses a reinforcing device for a brick masonry wall, which aims at solving the problems that the existing reinforcing device for the brick masonry wall is poor in reinforcing effect and high in cost and construction difficulty. The reinforcing device comprises a plurality of short steel bars and a high-ductility fiber concrete surface layer, wherein the short steel bars are implanted into vertical mortar joints of the brick masonry wall; the external surface of the brick masonry wall is coated with the high-ductility fiber concrete surface layer; and the brick masonry wall and all the short steel bars are wrapped by the high-ductility fiber concrete surface layer. The reinforcing device adopts the high-ductility fiber concrete surface layer to reinforce the brick wall; the brick wall can be wrapped by high-ductility fiber concrete with higher strength and higher toughness and can be prevented from being locally crushed; the integrity of the brick wall is improved; and the anti-seismic property of the brick wall can be greatly improved.

Description

A kind of brick masonry wall bracing means
Technical field
The utility model relates to building structure aseismatic and reinforcing technique field, is specially a kind of brick masonry wall anti-seismic strengthening device for Multi-storey block.
Background technology
Brick masonry structure is mainly to be built by laying bricks or stones by fragment of brick and mortar to form, and because construction quality differs greatly, intensity is relatively low, and discreteness is large, and its tension, shearing resistance and anti-bending bearing capacity are all lower.After brick masonry wall cracking, its bearing capacity descends rapidly in earthquake, very easily collapses, and causes casualties that the earthquake region is huge and serious economic loss.The brick masonry structure application is quite extensive in China, therefore the reinforcement of brick masonry structure is seemed particularly important.Find from macroscopical earthquake and experimental study, the cracking of brickwork body of wall and collapsing under geological process is not enough mainly due to shear strength and the deformability of body of wall.
Masonry walls reinforcing technique commonly used has buttress method, Enlargement of Section and mesh reinforced cement mortar method etc.Above-mentioned reinforcement and strengthening technology integral level is relatively backward, and job practices and technique more complicated are not obvious to the stress performance raising of reinforcing rear brick wall, and reinforcement cost is higher.
Summary of the invention
For defective or the deficiency that prior art exists, the purpose of this utility model is to provide that a kind of consolidation effect is good, construction is simple and the low brick masonry wall bracing means of cost.
For this reason, the brick masonry wall bracing means that provides of the utility model comprises: be implanted in some bar dowels in the brick masonry wall perpends; And the high ductility fibrous concrete surface layer that is coated in the brick masonry wall external surface, described high ductility fibrous concrete surface layer coats brick masonry wall and all bar dowels.
Preferably, level interval and longitudinal pitch between adjacent bar dowel are 300mm, and the diameter of each bar dowel is 10~12mm.
Preferably, the thickness of above-mentioned high ductility fibrous concrete surface layer is 10~30mm.
Bracing means of the present utility model adopts high ductility fibrous concrete surface layer to reinforce brick wall, utilizes the high ductility fibrous concrete of high strength and toughness to form parcel to brick wall, improves globality and the anti-seismic performance of brick wall.
Compared with prior art, the utlity model has following characteristics:
(1) this device is implanted into bar dowel in brick wall body perpends, and both convenient construction, can strengthen again the adhesive property between brick wall and high ductility fibrous concrete surface layer, guarantees brick wall and surface layer co-operation.
(2) the high ductility fibrous concrete of this device employing is a kind of ecological architectural material with high strength, high ductility, high-durability and high damnification resistant ability, and and good adhesive property is arranged between brickwork, can significantly improve stability and the anti-seismic performance of brick wall.
(3) brick wall reinforced of this device has good durability, but increases substantially the bearing capacity ability of existing brick wall the application life of extending structure, reduces and even removes the work of repairing after macroseism from.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is that the A-A of Fig. 1 is to view;
Fig. 3 is the structural representation of the utility model embodiment 2;
Fig. 4 is that the B-B of Fig. 3 is to view;
Each coded representation in figure: 1-collar tie beam, 2-brick masonry wall, 3-constructional column, 4-collar tie beam, 5-bar dowel, the high ductility fibrous concrete of 6-surface layer.
The specific embodiment
Embodiment 1:
With reference to figure 1 and Fig. 2, the present embodiment brick masonry wall 2 to be reinforced is with constructional column 3 and collar tie beam (1,4), and the fired common brick piece is of a size of 240mm * 115mm * 53mm; Brick wall 2 length are 4.2m, are highly 3m, and thickness is 240mm; Constructional column 3 sectional dimensions are 120mm * 240mm; The sectional dimension of collar tie beam 1 is 340mm * 400mm; The sectional dimension of collar tie beam 4 is 180mm * 240mm; The bracing means of the reinforcing brick masonry wall that the present embodiment provides comprises totally 198 bar dowels 5 that are implanted in brick masonry wall 2 both sides perpends; And the high ductility fibrous concrete surface layer 6 that is coated in brick masonry wall 2 external surfaces, its thickness is 20mm, described high ductility fibrous concrete surface layer 6 coats brick masonry wall 2 and all bar dowels 5.
Wherein, the present embodiment Girth 1,4 and constructional column 3 all by constructional reinforcement, bar dowel 5 adopts the HRB400 grade reinforcing steels, diameter is 12mm, length is 120mm, outstanding brick masonry wall surface 20mm, longitudinal pitch and horizontal spacing that adjacent bar dowel is 5 are 300mm; The component of high ductility fibrous concrete is cement, flyash, silicon ash, sand, PVA fiber, water reducing agent and water, by mass percentage, and cement: flyash: silicon ash: sand: water=1:0.9:0.1:0.76:0.58; Cumulative volume after mixing take cement, flyash, silicon ash, Sha Heshui is as radix, and the volume volume of PVA fiber is 1.5%; The addition of water reducing agent is 0.8% of cement, flyash and silicon ash gross mass.Wherein: the maximum particle diameter of sand is 1.26mm; The PVA fiber is the PA600 fiber type that Shanghai Luo Yang Science and Technology Ltd. produces, and length is 8mm, and diameter is 26 μ m, and tensile strength is 1200MPa, and modulus of elasticity is 30GPa; Cement is the P.O.52.5R portland cement; Flyash is I level flyash; The loss on ignition of silicon ash used is 5%, and dioxide-containing silica is 88%, and specific area is 18000m 2/ kg; Water reducing agent be water-reducing rate at the high-efficiency water-reducing agent of poly-carboxylic acid more than 30%, polycarboxylate water-reducer is that Jiangsu Botexin Materials Co., Ltd produces The type high performance water reducing agent of polyocarboxy acid; The present embodiment adopts above-mentioned material and each material usage.
The bracing means of this embodiment is undertaken by following construction sequence:
At first, implant bar dowel in the perpends on brick wall surface; Level interval between adjacent bar dowel and longitudinal pitch are 300mm;
Then, smear high ductility fibrous concrete surface layer on the brick wall surface, this high ductility fibrous concrete surface layer coats brick wall and bar dowel.
Embodiment 2:
With reference to figure 3 and Fig. 4, the present embodiment brick masonry wall to be reinforced is not with constructional column, and the fired common brick piece is of a size of 240mm * 115mm * 53mm; Brick wall 2 length are 4.2m, are highly 3m, and thickness is 240mm; The sectional dimension of collar tie beam 1 is 340mm * 400mm; The structure of bracing means and material therefor and working procedure are all identical with embodiment 1.
The utility model utilize high ductility fibrous concrete the mechanical property advantage and and brick wall between good adhering performance, both brick wall was produced larger horizontal active restraint forces, improve the shear strength of brick wall, can improve the globality of brick wall again, effectively suppress the cracking of brick wall, greatly improve the deformability of brick wall self, thereby significantly improve globality and the anti-seismic performance of brick wall, effectively alleviate the destructiveness of masonry structure under geological process.Simultaneously, smearing high ductility fibrous concrete surface layer reinforcing brick masonry wall constructs simple, easy to operate.

Claims (3)

1. a brick masonry wall bracing means, is characterized in that, comprising: be implanted in the some bar dowels (5) in brick masonry wall (2) perpends; And the high ductility fibrous concrete surface layer (6) that is coated in brick masonry wall (2) external surface, described high ductility fibrous concrete surface layer (6) coats brick masonry wall (2) and all bar dowels (5).
2. brick masonry wall bracing means as claimed in claim 1, is characterized in that, level interval and longitudinal pitch between the adjacent bar dowel (5) in described some bar dowels (5) are 300mm, and the diameter of each bar dowel (5) is 10~12mm.
3. brick masonry wall bracing means as claimed in claim 1, is characterized in that, the thickness of described high ductility fibrous concrete surface layer (6) is 10~30mm.
CN 201220576454 2012-11-04 2012-11-04 Reinforcing device for brick masonry wall Active CN202925925U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220576454 CN202925925U (en) 2012-11-04 2012-11-04 Reinforcing device for brick masonry wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220576454 CN202925925U (en) 2012-11-04 2012-11-04 Reinforcing device for brick masonry wall

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CN202925925U true CN202925925U (en) 2013-05-08

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103866991A (en) * 2014-01-24 2014-06-18 河海大学 Method for preventing basalt fiber cloth and concrete from stripping during repairing shear wall
WO2015118372A1 (en) 2014-02-05 2015-08-13 Tri Srl Process for reinforcing a building with masonry walls
CN105625742A (en) * 2016-02-17 2016-06-01 朱奎 Brick wall reinforcing structure
CN105863291A (en) * 2016-04-20 2016-08-17 上海市建筑科学研究院 Method for smearing high-ductility cement-based composite material to reinforce masonry wall without constructional columns

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103866991A (en) * 2014-01-24 2014-06-18 河海大学 Method for preventing basalt fiber cloth and concrete from stripping during repairing shear wall
WO2015118372A1 (en) 2014-02-05 2015-08-13 Tri Srl Process for reinforcing a building with masonry walls
CN105625742A (en) * 2016-02-17 2016-06-01 朱奎 Brick wall reinforcing structure
CN107386676A (en) * 2016-02-17 2017-11-24 朱奎 Brick wall reinforced construction method
CN105625742B (en) * 2016-02-17 2017-12-15 朱奎 Brick wall reinforcement structure
CN105863291A (en) * 2016-04-20 2016-08-17 上海市建筑科学研究院 Method for smearing high-ductility cement-based composite material to reinforce masonry wall without constructional columns

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