CN219365526U

CN219365526U - Reinforcement device for reinforced concrete shear wall replacement

Info

Publication number: CN219365526U
Application number: CN202320300015.4U
Authority: CN
Inventors: 陈艳兵; 朱汝银
Original assignee: CHINA LIGHT INDUSTRY WUHAN DESIGN ENGINEERING CO LTD
Current assignee: CHINA LIGHT INDUSTRY WUHAN DESIGN ENGINEERING CO LTD
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-07-18
Anticipated expiration: 2033-02-23

Abstract

The utility model discloses a reinforced concrete shear wall replacement reinforcing device, which comprises templates arranged on two sides of a shear wall replacement area to be reinforced and a permanent support system supported between the top and the bottom of the shear wall replacement area to be reinforced, wherein in the shear wall replacement area to be reinforced, newly-increased horizontal distribution ribs are arranged at original horizontal distribution rib positions, newly-increased vertical distribution ribs are arranged at original vertical distribution rib positions, the newly-increased horizontal distribution ribs are welded with the original horizontal distribution ribs reserved in the shear wall replacement area to be reinforced, and the newly-increased vertical distribution ribs are welded with the original vertical distribution ribs reserved in the shear wall replacement area to be reinforced. The utility model can improve the bearing capacity of the structure, the section of the reinforced shear wall is designed as the original section, and the use area is not lost; the permanent support system has simple and clear force transmission, can ensure construction safety, and does not need to build a large number of temporary support systems of scaffolds layer by layer downwards; the self-compacting concrete has good fluidity, high strength and micro-expansion, is favorable for vibrating and does not bleed.

Description

Reinforcement device for reinforced concrete shear wall replacement

Technical Field

The utility model belongs to the technical field of reinforced concrete reinforcement, and relates to a reinforced concrete shear wall replacement reinforcement device which is suitable for the design and construction of replacement reinforcement of a shear wall in a reinforced concrete structure due to insufficient concrete strength.

Background

The common reinforcement methods of the reinforced concrete structure include a reinforcing method for increasing the cross section, a reinforcing method for wrapping steel, a reinforcing method for sticking steel plates, a reinforcing method for sticking fiber composite materials, a reinforcing method for a prestressed carbon fiber composite plate, and the like. For the reinforced concrete shear wall with insufficient concrete strength, the conventional reinforcement method can be adopted, but residential buildings such as property and the like have strict requirements on building space, cannot allow the use area to be damaged, cannot accept the factors such as reinforcement of new houses and the like, in order to avoid contradiction between a constructor and a owner, the structure with insufficient concrete strength of the shear wall caused by construction and other reasons can only be reinforced by adopting a replacement concrete reinforcing method, the reinforced section is designed in the same way as the original section, the usage space of a building is not occupied, and the secondary decoration of the owner is not influenced.

The replacement concrete reinforcement method is used for chiseling out the concrete with insufficient strength in batches, unloading construction is dangerous, a conventional scaffold support system is complicated, a large number of temporary scaffold supports are required to be erected, and material waste and overlong construction period are caused.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide a reinforced concrete shear wall replacement and reinforcement device.

The above object of the present utility model is achieved by the following technical solutions:

the reinforced concrete shear wall replacement reinforcing device comprises templates arranged on two sides of a shear wall replacement area to be reinforced, and further comprises a permanent support system supported between the top and the bottom of the shear wall replacement area to be reinforced, wherein in the shear wall replacement area to be reinforced, newly-increased horizontal distribution ribs are arranged at the positions of original horizontal distribution ribs, newly-increased vertical distribution ribs are arranged at the positions of the original vertical distribution ribs, the newly-increased horizontal distribution ribs are welded with the original horizontal distribution ribs reserved in the shear wall replacement area to be reinforced, and the newly-increased vertical distribution ribs are welded with the original vertical distribution ribs reserved in the shear wall replacement area to be reinforced.

The permanent supporting system comprises an upper steel plate, a jack, a solid steel rod and a bottom steel plate which are sequentially arranged from top to bottom, wherein the upper steel plate abuts against the top of a shear wall replacement area to be reinforced, and the bottom steel plate abuts against the bottom of the shear wall replacement area to be reinforced.

And pouring holes are formed in the upper floor plate of the shear wall replacement area to be reinforced, and the pouring holes are communicated with the V-shaped hole grooves in the top of the template.

The newly added wall tie bars are bound between the newly added horizontal distribution bars and the original horizontal distribution bars; and a newly-added wall body tie bar is bound between the newly-added vertical distribution bar and the original vertical distribution bar.

And pouring self-compacting concrete between the templates on the two sides of the shear wall replacement area to be reinforced.

Compared with the prior art, the utility model has the following advantages:

the structural bearing capacity can be improved, the specification and design requirements are met, the section of the reinforced shear wall is the same as the original design, and the use area is not lost; the permanent support system has simple and clear force transmission, can ensure construction safety, does not need to downwards set up a large number of temporary support systems of the scaffold layer by layer, can reduce materials, shorten construction period and save engineering cost; the self-compacting concrete has good fluidity, high strength, micro expansion, easy vibration and no bleeding, and can ensure the quality of finished products.

Drawings

FIG. 1 is a schematic diagram of a single set of permanent support system according to the present utility model;

FIG. 2 is a schematic view of a multiple set permanent support system according to the present utility model

FIG. 3 is a schematic view of section A-A of FIGS. 1 and 2;

FIG. 4 is a schematic cross-sectional view of B-B in FIGS. 1 and 2;

FIG. 5 is a schematic view of section C-C of FIG. 1;

FIG. 6 is a schematic view of section D-D of FIG. 1;

FIG. 7 is a schematic view of section E-E of FIG. 2;

FIG. 8 is a schematic cross-sectional view of F-F in FIG. 2;

in the figure: the shear wall to be reinforced comprises a 1-shear wall to be reinforced, a 2-original horizontal distribution rib, a 3-original vertical distribution rib, a 4-bottom steel plate, a 5-solid steel bar, a 6-jack, a 7-upper steel plate, 8-pouring holes, 9-newly added wall body tie bars, 10-newly added horizontal distribution ribs, 11-newly added vertical distribution ribs, 12-templates and 13-V-shaped hole grooves.

Detailed Description

In order to facilitate the understanding and practice of the utility model by those of ordinary skill in the art, the utility model is described in further detail below in connection with the embodiments, it being understood that the examples described herein are for illustration and explanation only and are not intended to limit the utility model thereto.

Example 1

The utility model provides a reinforced concrete shear force wall replacement reinforcing apparatus, including setting up template 12 at the both sides face of waiting to consolidate the shear force wall replacement district, still include the support between waiting to consolidate shear force wall replacement district top and bottom permanent braced system, wait to consolidate the shear force wall replacement district, lay newly-increased horizontal distribution muscle 10 in former horizontal distribution muscle 2 positions department, lay newly-increased vertical distribution muscle 11 in former vertical distribution muscle 3 positions department, permanent braced system includes upper portion steel sheet 7 that sets gradually from top to bottom, jack 6, solid steel bar 5 and bottom steel sheet 4, upper portion steel sheet 7 offsets with waiting to consolidate shear force wall replacement district top, bottom steel sheet 4 offsets with waiting to consolidate shear force wall replacement district bottom. According to the utility model, the upper load of the shear wall replacement area to be reinforced is transmitted to the shear wall at the lower part of the shear wall replacement area to be reinforced through the permanent support system, the section sizes and the material strengths of the bottom steel plate 4, the upper steel plate 7 and the solid steel rod 5 are calculated and determined according to the upper load of the shear wall replacement area to be reinforced, the section sizes and the material strengths are usually Q235B or Q355B carbon steel, the thicknesses of the bottom steel plate 4 and the upper steel plate 7 are not less than 12mm, and higher-strength steel materials can be selected according to practical conditions.

When only a single set of permanent support system is arranged in a shear wall replacement area to be reinforced, the widths of the bottom steel plate 4 and the upper steel plate 7 can be obtained by subtracting 2 times the thickness of a shear wall protection layer from the thickness of the shear wall, and the original vertical distribution ribs 3 are avoided during installation; if a plurality of permanent support systems are arranged in the shear wall replacement area to be reinforced, the bottom steel plate 4 or the upper steel plate 7 can be an independent square steel plate or a long rectangular steel plate (the width is obtained by subtracting 2 times of the thickness of the shear wall protective layer from the thickness of the shear wall and subtracting 2 times of the diameter of the original vertical distribution rib 3); the diameter of the solid steel bar 5 is usually not less than 60mm, and the requirement of stability is met besides the compressive strength; the jack 6 is usually a hydraulic jack with a pressure gauge, and the maximum compressive load of the hydraulic jack cannot be smaller than the load of the upper part of the replacement area of the shear wall to be reinforced.

The diameter interval of the newly added horizontal distributing ribs 10 and the diameter interval of the newly added vertical distributing ribs 11 are the same as the diameter interval of the original horizontal distributing ribs 2 reserved in the replacement area and the diameter interval of the original vertical distributing ribs 3, the newly added horizontal distributing ribs 10 are in single-sided adhesive welding with the original horizontal distributing ribs 2 reserved in the replacement area of the shear wall to be reinforced, and the newly added vertical distributing ribs 11 are in single-sided adhesive welding with the original vertical distributing ribs 3 reserved in the replacement area of the shear wall to be reinforced. A newly added wall tie bar 9 is bound between the newly added horizontal distribution bar 10 and the original horizontal distribution bar 2; a newly-added wall tie bar 9 is bound between the newly-added vertical distribution bar 11 and the original vertical distribution bar 3.

Pouring holes 8 are formed in the upper floor plate of the shear wall replacement area to be reinforced, and the pouring holes 8 are communicated with V-shaped hole grooves 13 in the top of the formwork 12. The side length of the casting hole 8 is usually 100-200 mm, the casting hole 8 is too small to affect casting, the damage to the floor slab is too large, and the proper size is selected according to specific engineering.

And installing templates 12 on two side surfaces of the shear wall replacement area to be reinforced, wherein the templates 12 can be common wood templates or aluminum templates with better performance. When the templates 12 are assembled on site, the widths of the joints between the adjacent boards are controlled to be smaller than the preset widths of the joints, clips are additionally arranged at the joints of the two boards, and water bars are attached to the joints to prevent leakage. And a V-shaped hole groove 13 is arranged at the outer periphery of the upper part of the template 12 below the pouring hole 8 to form a feed inlet, and the template at the pouring hole 8 is at least 100mm higher than the superstructure floor, so that the compactness of the pouring material in the replacement area of the shear wall to be reinforced is ensured. Self-compacting concrete is poured between the templates 12 on the two sides of the shear wall replacement area to be reinforced.

The number of the permanent support systems can be uniformly distributed into a plurality of sets according to the width and the load condition of the replacement area of the shear wall to be reinforced.

The bottom steel plate 4, the solid round steel 5, the jack 6 and the upper steel plate 7 are welded and connected, and the pressure lever of the jack 6 is in a limiting static state finally.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a reinforced concrete shear force wall replacement reinforcing apparatus, including setting up template (12) at the both sides face of waiting to consolidate shear force wall replacement district, a serial communication port, still including supporting the permanent braced system between waiting to consolidate shear force wall replacement district top and bottom, wait to consolidate in the shear force wall replacement district, lay newly-increased horizontal distribution muscle (10) in former horizontal distribution muscle (2) position department, lay newly-increased vertical distribution muscle (11) in former vertical distribution muscle (3) position department, newly-increased horizontal distribution muscle (10) welds with former horizontal distribution muscle (2) of waiting to consolidate reserved in the shear force wall replacement district, newly-increased vertical distribution muscle (11) welds with former vertical distribution muscle (3) of waiting to consolidate reserved in the shear force wall replacement district.

2. The reinforced concrete shear wall replacement reinforcing device according to claim 1, wherein the permanent support system comprises an upper steel plate (7), a jack (6), a solid steel bar (5) and a bottom steel plate (4) which are sequentially arranged from top to bottom, the upper steel plate (7) is propped against the top of a shear wall replacement area to be reinforced, and the bottom steel plate (4) is propped against the bottom of the shear wall replacement area to be reinforced.

3. The reinforced concrete shear wall replacement reinforcing device according to claim 1, wherein pouring holes (8) are formed in an upper floor plate of the shear wall replacement area to be reinforced, and the pouring holes (8) are communicated with V-shaped hole grooves (13) in the top of the formwork (12).

4. The reinforced concrete shear wall replacement reinforcing device according to claim 1, wherein a newly-added wall tie bar (9) is bound between the newly-added horizontal distribution bar (10) and the original horizontal distribution bar (2); a newly-added wall body tie bar (9) is bound between the newly-added vertical distribution bar (11) and the original vertical distribution bar (3).

5. The reinforced concrete shear wall replacement reinforcing device according to claim 1, wherein self-compacting concrete is poured between templates (12) on two sides of the shear wall replacement area to be reinforced.