CN202925712U - Reinforcing device for block masonry wall - Google Patents

Reinforcing device for block masonry wall Download PDF

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Publication number
CN202925712U
CN202925712U CN 201220576126 CN201220576126U CN202925712U CN 202925712 U CN202925712 U CN 202925712U CN 201220576126 CN201220576126 CN 201220576126 CN 201220576126 U CN201220576126 U CN 201220576126U CN 202925712 U CN202925712 U CN 202925712U
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block masonry
reinforcing
layer
masonry
block
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CN 201220576126
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Chinese (zh)
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邓明科
梁兴文
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 block masonry wall, which solves the problems that the existing reinforcing device is poor in reinforcing effect, high in cost, and high in construction difficulty. The reinforcing device comprises a plurality of short reinforcements implanted into a vertical mortar joint of the block masonry wall, and a high-ductility fiber concrete surface layer, wherein the external surface of the block masonry wall is coated with the high-ductility fiber concrete surface layer, and the high-ductility fiber concrete surface layer covers the block masonry wall and all the short reinforcements. The reinforcing device adopts the high-ductility fiber concrete surface layer to reinforce the block masonry wall, and can use higher-strength, higher-toughness and high-ductility fiber concrete to wrap the block masonry wall, so that local crush of the block masonry wall is prevented, and earthquake resistance of the block masonry wall is improved greatly.

Description

A kind of block masonry wall bracing means
Technical field
The utility model relates to building structure aseismatic and reinforcing technique field, is specially a kind of block masonry wall anti-seismic strengthening device for Multi-storey block.
Background technology
Block masonry structure is mainly to be built by laying bricks or stones by building block 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 block 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 block masonry structure application is quite extensive in China, therefore the reinforcement of block masonry structure is seemed particularly important.Find from macroscopical earthquake and experimental study, the cracking of block masonry body of wall and collapsing under geological process is not enough mainly due to shear strength and the deformability of body of wall.
Block masonry wall 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 block masonry 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, provides that a kind of consolidation effect is good, construction is simple and the low block masonry wall bracing means of cost.
For this reason, the block masonry wall bracing means that provides of the utility model comprises: be implanted in some bar dowels in block masonry wall perpends; And the high ductility fibrous concrete surface layer that is coated in block masonry wall external surface, described high ductility fibrous concrete surface layer coats block 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 the block masonry wall, can utilize the high ductility fibrous concrete of higher-strength and toughness to form parcel to the block masonry wall, prevent the local crushing of block masonry wall, improve the globality of block masonry wall, can increase substantially the anti-seismic performance of block masonry wall.
Compared with prior art, the utlity model has following characteristics:
(1) be implanted into bar dowel in block masonry body of wall perpends, both convenient construction, can strengthen again the adhesive property between block masonry wall and high ductility fibrous concrete surface layer, guarantees block masonry wall and surface layer co-operation.
(2) the high ductility fibrous concrete of device employing is a kind of ecological architectural material with high strength, high ductility, high-durability and high damnification resistant ability, can effectively avoid the local crushing of block masonry wall, significantly improve stability and the anti-seismic performance of block masonry wall.
(3) the block masonry wall reinforced of this device has good durability, but increases substantially the bearing capacity ability of existing block masonry 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 bracing means of embodiment 1;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is the structural representation of the bracing means of embodiment 2;
Fig. 4 is that the B-B of Fig. 3 is to sectional view;
Each coded representation in figure: 1-collar tie beam, 2-block masonry wall, 3-constructional column, 4-collar tie beam, 5-bar dowel, the high ductility fibrous concrete of 6-surface layer, 7-concrete-core column.
The specific embodiment
Embodiment 1:
With reference to figure 1 and Fig. 2, the present embodiment block masonry wall 2 to be reinforced is with constructional column 3 and collar tie beam (1,4), and concrete block is of a size of 390mm * 190mm * 190mm; Block masonry 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 sectional dimension of concrete-core column 7 is 120mm * 120mm, and putting spacing along wall paper is 2m; The bracing means of the reinforcing block masonry wall that the present embodiment provides comprises 198 bar dowels 5 that are implanted in block masonry wall 2 both sides perpends; And the high ductility fibrous concrete surface layer 6 that is coated in block masonry wall 2 external surfaces, its thickness is 20mm, described high ductility fibrous concrete surface layer 6 coats block 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 block 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 bracing means of this embodiment is undertaken by following construction sequence:
At first, implant bar dowel in the perpends on block masonry wall surface; Level interval between adjacent bar dowel and longitudinal pitch are 300mm;
Then, smear high ductility fibrous concrete surface layer on block masonry wall surface, this high ductility fibrous concrete surface layer coats block masonry wall and bar dowel.
Embodiment 2:
With reference to figure 3 and Fig. 4, the present embodiment block masonry wall to be reinforced is not with constructional column, and block masonry 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 the block masonry wall between good adhering performance, both the block masonry wall was produced larger horizontal active restraint forces, improve the shear strength of block masonry wall, can improve the globality of block masonry wall again, effectively suppress the cracking of block masonry wall, greatly improve the deformability of block masonry wall self, thereby significantly improve globality and the anti-seismic performance of block masonry wall, effectively alleviate the destructiveness of masonry structure under geological process.Simultaneously, it is simple, easy to operate that the construction of high ductility fibrous concrete surface layer reinforcing block masonry wall is smeared in utilization.

Claims (3)

1. a block masonry wall bracing means, is characterized in that, device comprises: be implanted in the some bar dowels (5) in block masonry wall (2) perpends; And the high ductility fibrous concrete surface layer (6) that is coated in block masonry wall (2) external surface, described high ductility fibrous concrete surface layer (6) coats block masonry wall (2) and all bar dowels (5).
2. block masonry wall bracing means as claimed in claim 1, is characterized in that, level interval and longitudinal pitch between adjacent bar dowel (5) are 300mm, and the diameter of each bar dowel (5) is 10~12mm.
3. block 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 201220576126 2012-11-04 2012-11-04 Reinforcing device for block masonry wall Active CN202925712U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220576126 CN202925712U (en) 2012-11-04 2012-11-04 Reinforcing device for block masonry wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220576126 CN202925712U (en) 2012-11-04 2012-11-04 Reinforcing device for block masonry wall

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CN202925712U true CN202925712U (en) 2013-05-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112282123A (en) * 2020-10-16 2021-01-29 合力建设有限公司 Masonry filler wall constructional column and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112282123A (en) * 2020-10-16 2021-01-29 合力建设有限公司 Masonry filler wall constructional column and construction method thereof

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