CN216840803U

CN216840803U - Temporary support structure for replacing shear wall concrete

Info

Publication number: CN216840803U
Application number: CN202123029654.1U
Authority: CN
Inventors: 龚杰; 黄志涛; 林小兵; 刘恋; 涂克燕
Original assignee: Guangzhou Daxin Special Building New Technology Development Co ltd
Current assignee: Guangzhou Daxin Special Building New Technology Development Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-28
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a temporary supporting structure for replacing shear wall concrete, including split bolt, through a pair of splint of split bolt clamp on the shear wall, run through the steel shotcrete of upper floor and lower floor vertically and with splint welded, the steel shotcrete is more than two, every two steel shotcrete symmetrically distribute in the both sides of waiting to replace the concrete; the steel support is welded with the clamping plate; the clamping plate is divided into an upper clamping plate and a lower clamping plate, the upper clamping plate is located on the shear wall above the upper floor slab, the lower clamping plate is located on the shear wall below the lower floor slab, the structure is simple, the manufacturing cost is low, and the clamping plate can be assembled and disassembled more efficiently compared with a steel corbel which is complicated to manufacture and a concrete supporting bearing platform which is long in working hour.

Description

Temporary support structure for replacing shear wall concrete

Technical Field

The utility model relates to a building structural member, in particular to interim bearing structure for replacing shear force wall concrete.

Background

A common urban high-rise residential building mostly adopts a shear wall structure, the shear wall is a main bearing structure in the building, and in the building engineering, the condition that the strength of concrete of the existing shear wall structure does not reach the standard or the bearing capacity is insufficient can be met, so that the structure needs to be reinforced. Commonly used reinforcing methods include a cross-section enlarging method, a steel plate adhering reinforcing method, a concrete replacement reinforcing method and the like.

The above reinforcing methods, such as the method of enlarging the cross section, can reduce the use space of the building; although the steel plate pasting reinforcing method is fast in construction, the effect of joint work of the pasted steel plate and the original wall is poor, and the reinforcing effect is affected.

Although the concrete replacement and reinforcement method can fundamentally solve the problem of the shear wall, the support arrangement has high requirements on the construction technology, for example, steel corbels are installed on the upper floor and the lower floor of the shear wall needing replacement or concrete support bearing platforms are added, and then steel supports and jacks are arranged to form a support system.

However, the steel corbels are complex to manufacture and heavy in weight, and holes need to be aligned with anchor bolts during installation, so that the steel corbels are very complicated; the construction of the concrete supporting bearing platform needs to bear force after the concrete reaches the age, and the concrete supporting bearing platform needs to be dismantled after the replacement construction is finished, so that the engineering quantity is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a interim bearing structure for replacing shear force wall concrete aims at adapting to the concrete replacement of more different cross-section shear force walls to guarantee the security in the work progress, and simple structure, with low costs, consolidate effectually.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a temporary supporting structure for replacing shear wall concrete, wherein the to-be-replaced concrete of a shear wall is positioned between an upper floor slab and a lower floor slab, and the temporary supporting structure is characterized by comprising split bolts, a pair of clamping plates clamped on the shear wall through the split bolts, and more than two steel supports which vertically penetrate through the upper floor slab and the lower floor slab and are welded with the clamping plates, wherein every two steel supports are symmetrically distributed on two sides of the to-be-replaced concrete; the steel support is characterized by also comprising stiffening ribs, wherein the stiffening ribs are respectively welded with the clamping plates and the steel support; the clamping plates are divided into an upper clamping plate and a lower clamping plate, the upper clamping plate is positioned on the shear wall above the upper floor slab, and the lower clamping plate is positioned on the shear wall below the lower floor slab.

The technical scheme can be improved as follows:

as an improvement, the steel support is a square steel pipe internally filled with concrete.

As an improvement, U-shaped ribs for reversely buckling and pressing the steel supports are arranged between the upper clamping plate and the upper floor slab and between the lower clamping plate and the lower floor slab.

As a further improvement, two tail ends of the U-shaped rib penetrate through the shear wall, the other end of the U-shaped rib is bent and butt-welded, and then the steel support is reversely buckled and pressed to form the whole hoop.

As a further improvement, two ends of the U-shaped rib are implanted into the shear wall.

As an improvement, a groove is arranged at the position of the shear wall covered by the clamping plate and is used for embedding the clamping plate.

Compared with the prior art, the utility model, following beneficial effect has:

(1) the temporary support structure for replacing the shear wall concrete is simple in structure and low in manufacturing cost, and can be assembled and disassembled more efficiently compared with a concrete support bearing platform which is manufactured with complicated steel corbels and has long working hours;

(2) the shear wall body with different wall thicknesses and different extension lengths can be met by adding the steel supports or lengthening the split bolts, so that the adaptability is wider.

Drawings

In order to more clearly explain the technical solution of the present invention, the drawings used in the embodiments will be briefly described below.

Fig. 1 is a schematic view of a temporary support structure for replacing shear wall concrete according to the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention in a side view;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention in a side view, wherein the steel support on one side is still not installed;

wherein: 1. the concrete to be replaced; 2. an upper floor slab; 3. a lower floor slab; 4. oppositely pulling the bolts; 51. an upper splint; 52. a lower splint; 6. supporting steel; 7. a stiffening rib; 8. the whole hoop is formed; 9. u-shaped ribs; 10. a groove;

it should be understood that the drawings are not necessarily drawn to scale. It is obvious that the above mentioned drawings are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained as such without inventive effort.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Example one

As shown in fig. 1-2, the utility model provides a temporary support structure for replacing shear wall concrete, the waiting of shear wall replacement concrete 1 is located between upper floor 2 and lower floor 3, this temporary support structure, including split bolt 4, a pair of splint, steel shotcrete 6, stiffening rib 7 and whole hoop 8.

Specifically, a pair of clamping plates are clamped on a shear wall through split bolts 4, more than two steel supports 6 vertically penetrate through an upper floor 2 and a lower floor 3 and are welded with the clamping plates, every two steel supports 6 are symmetrically distributed on two sides of concrete 1 to be replaced, stiffening ribs 7 are respectively welded with the clamping plates and the steel supports 6, and the steel supports 6 are square steel pipes filled with concrete; the clamping plates are divided into an upper clamping plate 51 and a lower clamping plate 52, the upper clamping plate 51 is positioned on the shear wall above the upper floor slab 2, the lower clamping plate 52 is positioned on the shear wall below the lower floor slab 3, the steel supports 6 are square steel pipes filled with concrete, U-shaped ribs 9 used for reversely buckling and pressing the steel supports 6 are arranged between the upper clamping plate 51 and the upper floor slab 2 and between the lower clamping plate 52 and the lower floor slab 3, two tail ends of each U-shaped rib 9 penetrate through the shear wall, and after the other ends are bent and butt-welded, the steel supports 6 are reversely buckled and pressed to form a whole hoop 8, so that the clamping plates and the steel supports 6 are further fixed on the shear walls of the upper layer and the lower layer.

Example two

As shown in fig. 1 and 3, the utility model provides a temporary support structure for replacing shear wall concrete, the waiting of shear wall replacement concrete 1 is located between upper floor 2 and lower floor slab 3, this temporary support structure, including split bolt 4, a pair of splint, steel shotcrete 6, stiffening rib 7, U type muscle 9 and recess 10.

Specifically, a pair of clamping plates are clamped on a shear wall through split bolts 4, more than two steel supports 6 vertically penetrate through an upper floor 2 and a lower floor 3 and are welded with the clamping plates, every two steel supports 6 are symmetrically distributed on two sides of concrete 1 to be replaced, stiffening ribs 7 are respectively welded with the clamping plates and the steel supports 6, and the steel supports 6 are square steel pipes filled with concrete; the clamping plates are divided into an upper clamping plate 51 and a lower clamping plate 52, the upper clamping plate 51 is located on the shear wall above the upper floor slab 2, the lower clamping plate 52 is located on the shear wall below the lower floor slab 3, U-shaped ribs 9 used for reversely buckling and compressing the steel supports 6 are arranged between the upper clamping plate 51 and the upper floor slab 2 and between the lower clamping plate 52 and the lower floor slab 3, and grooves 10 are formed in the shear wall covered by the clamping plates and used for embedding the clamping plates so as to increase the shearing resistance of the clamping plates.

The above embodiment is not a limitation to the protection scope of the present invention, and the embodiment of the present invention is not limited thereto, and all of them are based on the above content of the present invention, and according to the common technical knowledge and the conventional means in the field, under the premise of not departing from the above basic technical idea of the present invention, modifications, replacements or changes of other various forms made by the above structure of the present invention should all fall within the protection scope of the present invention.

Claims

1. A temporary supporting structure for replacing shear wall concrete is characterized by comprising split bolts (4), a pair of clamping plates clamped on a shear wall through the split bolts (4), and steel supports (6) vertically penetrating through the upper floor (2) and the lower floor (3) and welded with the clamping plates, wherein the number of the steel supports (6) is more than two, and every two steel supports (6) are symmetrically distributed on two sides of the shear wall concrete (1); the steel support is characterized by further comprising a stiffening rib (7), wherein the stiffening rib (7) is welded with the clamping plate and the steel support (6) respectively; the clamping plates are divided into an upper clamping plate (51) and a lower clamping plate (52), the upper clamping plate (51) is positioned on the shear wall above the upper floor slab (2), and the lower clamping plate (52) is positioned on the shear wall below the lower floor slab (3).

2. Temporary support structure for replacing shear wall concrete according to claim 1, characterized in that the steel supports (6) are square steel tubes with concrete poured inside.

3. Temporary support structure for replacement of shear wall concrete according to claim 1 or 2, characterized in that between the upper plywood (51) and the upper floor (2) and between the lower plywood (52) and the lower floor (3) there are provided U-shaped ribs (9) for reversing and pressing the steel bracing (6).

4. Temporary support structure for replacing shear wall concrete according to claim 3, characterized in that the two ends of the U-shaped bar (9) are embedded in the shear wall.

5. A temporary support structure for replacing shear wall concrete according to claim 3, characterized in that the two ends of the U-shaped reinforcing bar (9) penetrate through the shear wall, and after the other end is bent and butt-welded, the steel support (6) is turned over and pressed tightly to form a whole hoop (8).

6. Temporary support structure for replacing shear wall concrete according to claim 1, 4 or 5, characterized in that at the shear wall covered by the plywood, there is provided a groove (10) for embedding the plywood.