Temporary supporting structure for dismounting, changing and replacing shear wall

Abstract

The utility model discloses a temporary supporting structure for dismantling, changing and replacing a shear wall, which comprises a plurality of first concrete structural beams which are distributed around the shear wall to be dismantled, changed and replaced and are used for bearing an upper floor slab, and second concrete structural beams which are used for bearing a lower floor slab and are in one-to-one correspondence with the first concrete structural beams, the top of each second concrete structural beam is provided with a plurality of vertically-arranged supporting square steel in the axial direction of the second concrete structural beam, the top of each supporting square steel is provided with a supporting steel plate, the top of each supporting steel plate is provided with a hydraulic jack with a vertically-upward jacking face, and the jacking faces of the hydraulic jacks abut against the corresponding first concrete structural beams. The shear wall can be effectively disassembled, replaced, reinforced and the like, safety is high, follow-up process construction is not affected, the device is easy and convenient to implement, the construction period is shortened, and the device can be widely applied to the field of building construction.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building construction, in particular to a kind of temporary support structure for shear wall dismantling and replacement. BACKGROUND

[0002] When concrete strength is insufficient or design change influences, the problem of shear wall dismantling and replacement is usually involved. It is generally believed that the following necessary conditions are required when carrying out shear wall dismantling: firstly, the temporary support of the surrounding structural beam of the shear wall to be dismantled is kept stable to create a safe construction environment; secondly, the construction method is convenient and reliable, and does not affect the construction of other operation surfaces. If these necessary conditions are ignored, the consequences are serious. Some temporary supports cannot meet the requirements and have great safety and quality risks during the dismantling process, making it impossible to carry out construction. Some construction methods are difficult to implement, affecting the dismantling period and efficiency. Therefore, attention should be paid to the practice of temporary support during shear wall dismantling and construction. SUMMARY

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a temporary support structure for shear wall dismantling and replacement, which can effectively carry out dismantling, replacement, reinforcement and other treatment processes on the shear wall, has high safety, does not affect the subsequent process construction, is simple and easy to implement, and saves construction period.

[0004] The utility model provides a temporary support structure for shear wall dismantling and replacement, which comprises a plurality of first concrete structural beams supporting the upper floor slab around the shear wall to be dismantled and replaced, and a plurality of second concrete structural beams corresponding to the first concrete structural beams and supporting the lower floor slab. Each second concrete structural beam has a plurality of vertical support square steels arranged on the top of the beam along the axial direction. Each support square steel has a support steel plate on the top. Each support steel plate has a hydraulic jack with the lifting surface vertically upward on the top. The lifting surface of the hydraulic jack abuts against the corresponding first concrete structural beam.

[0005] In the above technical solution, a triangular stiffener is arranged between the support steel plate and the support square steel connected thereto along the circumferential direction of the support square steel.

[0006] In the above technical solution, each first concrete structural beam has a leveling layer on the bottom. A cushion steel plate is arranged between the leveling layer on the bottom of each first concrete structural beam and the lifting surface of the hydraulic jack connected thereto. The lifting surface of the hydraulic jack abuts against the cushion steel plate.

[0007] In the above technical solution, each hydraulic jack has a replacement steel plate on both sides, and the two ends of the replacement steel plate abut against the cushion steel plate and the support steel plate, respectively.

[0008] In the above technical solution, each second concrete structural beam has multiple upper and lower connecting steel plates on its top along its axial direction. Each upper and lower connecting steel plate corresponds one-to-one with each supporting square steel and is connected to the top surface of the corresponding supporting square steel.

[0009] In the above technical solution, the upper and lower connecting steel plates are connected to the corresponding second concrete structural beam by chemical anchors.

[0010] In the above technical solution, the hydraulic jack is a 50T manual hydraulic jack.

[0011] In the above technical solution, the two ends of the replacement steel plate are welded to the padding steel plate and the supporting steel plate, respectively.

[0012] In the above technical solution, each supporting square steel is provided with eight triangular stiffening plates in the circumferential direction, and each supporting square steel is provided with two triangular stiffening plates on each side.

[0013] This utility model is used for a temporary support structure in the demolition and replacement of shear walls, and has the following beneficial effects:

[0014] This utility model provides a method for temporary support for the demolition and replacement of shear walls. After the temporary support is installed using this technology, the shear wall can be effectively demolished, replaced, and reinforced. The construction is safe, does not affect subsequent construction procedures, is simple to implement, and saves construction time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the temporary support structure for shear wall demolition and replacement according to this utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of section AA in the middle;

[0017] Figure 3 for Figure 1 Schematic diagram of the structure of the middle BB section;

[0018] Figure 4 This is a flowchart illustrating the installation steps of the temporary support structure for shear wall demolition and replacement according to this utility model. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.

[0020] See Figure 1The utility model is used for the temporary support structure of shear wall dismantling and replacement, including the multiple first concrete structure beams 1 of bearing upper floor around the shear wall (not shown in drawing) of dismantling and replacement and the second concrete structure beam 10 of bearing lower floor and corresponding with the first concrete structure beam 1, every second concrete structure beam 10 top along its axial direction is equipped with multiple vertical support square steel 6, every support square steel 6 top is equipped with support steel sheet 8, every support steel sheet 8 top is equipped with the hydraulic jack 4 of lifting face vertical upward, in this embodiment, the hydraulic jack 4 is 50T manual hydraulic jack, the lifting face of hydraulic jack 4 and corresponding first concrete structure beam 1 are in abutment.

[0021] Referring to Figure 2 , the support steel sheet 8 and the support square steel 6 connected with it are provided with a triangular stiffener 5 arranged along the circumference of the support square steel 6, in this embodiment, each support square steel 6 is provided with eight triangular stiffeners 5 along the circumference, and each support square steel 6 is provided with two triangular stiffeners 5 on each side.

[0022] Each first concrete structure beam 1 is provided with a leveling layer at the bottom, and a cushion steel plate 2 is arranged between the leveling layer at the bottom of each first concrete structure beam 1 and the lifting face of the hydraulic jack 4 connected therewith, and the lifting face of the hydraulic jack 4 is in abutment with the cushion steel plate 2.

[0023] Each hydraulic jack 4 is provided with a replacement steel plate 3 on both sides, which is in abutment with the cushion steel plate 2 and the support steel plate 8 at both ends, in this embodiment, the replacement steel plate 3 is connected with the cushion steel plate 2 and the support steel plate 8 at both ends by welding.

[0024] Referring to Figure 3 , each second concrete structure beam 10 is provided with multiple upper and lower connecting steel plates 7 along the axial direction at the top, each upper and lower connecting steel plate 7 corresponds to each support square steel 6 and is connected with the top surface of the corresponding support square steel 6, in this embodiment, the upper and lower connecting steel plate 7 is connected with the corresponding second concrete structure beam 10 by chemical anchor 9.

[0025] Referring to Figure 4 , the utility model is used for the temporary support structure installation method of shear wall dismantling and replacement, comprising the following steps:

[0026] S1, drilling holes on the top surface of the second concrete structure beam 10 of the shear wall to be dismantled and replaced, and connecting the upper and lower connecting steel plates 7 by chemical anchor 9 (as shown in Figure 3 );

[0027] S2, install the support square steel 6, and weld the support square steel 6 of 150x150x6 above the upper and lower connecting steel plates 7;

[0028] S3, support square steel 6 above welding 300x300x14 support steel plate 8 as hydraulic jack 4 support point, support steel plate 8 below welding eight 80x40x3 triangular stiffener 5 for keeping the stability of support steel plate 8 (such as Figure 2 );

[0029] S4, install hydraulic jack 4, install 50T manual hydraulic jack 4 above support steel plate 8, set up cushion steel plate 2 above hydraulic jack 4 for force lifting of hydraulic jack 4. The beam bottom surface of the intersection of cushion steel plate 2 and first concrete structure beam 1 needs to be ground flat or use high-strength mortar to level, to prevent uneven stress during lifting;

[0030] S5, hydraulic jack 4 lifting, according to the support stress of shear wall on beam, calculate the lifting height and tonnage data of hydraulic jack 4, according to the calculation data to lift, ensure that the temporary support structure can completely replace the shear wall in this place stress;

[0031] S6, replace hydraulic jack 4, measure the lifting height of hydraulic jack 4, replace hydraulic jack 4 by welding two 300x160x14 replacement steel plates 3 on both sides of hydraulic jack 4, to ensure the recycling of hydraulic jack 4;

[0032] S7, repeat the above steps, after the shear wall around the beam bottom is all set up by temporary support structure, all replace the stress of shear wall, then the shear wall can be removed, replaced and other operations.

[0033] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

[0034] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

Claims

1. A temporary support structure for the demolition and replacement of shear walls, comprising a plurality of first concrete structural beams (1) distributed around the shear wall to be demolished or replaced, supporting the upper floor slab, and second concrete structural beams (10) supporting the lower floor slab and corresponding one-to-one with the first concrete structural beams (1), characterized in that: Each second concrete structural beam (10) has a plurality of vertically arranged support square steels (6) on its top along its axial direction. Each support square steel (6) has a support steel plate (8) on its top. Each support steel plate (8) has a hydraulic jack (4) with its lifting surface facing vertically upward on its top. The lifting surface of the hydraulic jack (4) abuts against the corresponding first concrete structural beam (1).

2. The temporary support structure for shear wall demolition and replacement according to claim 1, characterized in that: A triangular stiffening plate (5) is provided between the supporting steel plate (8) and the supporting square steel (6) connected thereto, arranged circumferentially along the supporting square steel (6).

3. The temporary support structure for shear wall demolition and replacement according to claim 2, characterized in that: Each first concrete structural beam (1) has a leveling layer at the bottom, and a pad steel plate (2) is provided between the leveling layer at the bottom of each first concrete structural beam (1) and the lifting surface of the hydraulic jack (4) connected thereto, and the lifting surface of the hydraulic jack (4) abuts against the pad steel plate (2).

4. The temporary support structure for shear wall demolition and replacement according to claim 3, characterized in that: Each hydraulic jack (4) has a replacement steel plate (3) on both sides, which abuts against the pad steel plate (2) and the support steel plate (8) respectively.

5. The temporary support structure for shear wall demolition and replacement according to claim 4, characterized in that: Each second concrete structural beam (10) has multiple upper and lower connecting steel plates (7) on its top along its axial direction. Each upper and lower connecting steel plate (7) corresponds to each supporting square steel (6) and is connected to the top surface of the corresponding supporting square steel (6).

6. The temporary support structure for shear wall demolition and replacement according to claim 5, characterized in that: The upper and lower connecting steel plates (7) are connected to the corresponding second concrete structural beam (10) by chemical anchors (9).

7. The temporary support structure for shear wall demolition and replacement according to claim 6, characterized in that: The hydraulic jack (4) is a 50T manual hydraulic jack.

8. The temporary support structure for shear wall demolition and replacement according to claim 7, characterized in that: The two ends of the replacement steel plate (3) are welded to the padding steel plate (2) and the supporting steel plate (8), respectively.

9. The temporary support structure for shear wall demolition and replacement according to claim 8, characterized in that: Each supporting square steel (6) has eight triangular stiffening plates (5) around its circumference, and each supporting square steel (6) has two triangular stiffening plates (5) on each side.

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