Temporary partition wall both sides of basement roof force transmission and waterproof structure and construction method

Abstract

The application relates to a waterproof structure and a construction method thereof, and belongs to the technical field of waterproof construction, in particular to a temporary partition wall two-side basement roof force transmission and waterproof structure and a construction method thereof, which comprises force transmission corbels arranged on the two sides of the partition wall, the force transmission corbels are internally provided with force transmission steel bars, the top plate main body is arranged above the force transmission corbels, the top plate main body is internally provided with top plate steel bars, the force transmission steel bars extend into the top plate main body and are welded and fixed with the top plate steel bars, and a water stop steel plate is arranged on one side of the top plate main body. The application considers both the force transmission and waterproof functions of the temporary partition wall two-side basement roof, can effectively ensure the force transmission safety of the foundation pit, can more effectively prevent the basement roof from leaking when the temporary partition wall is removed and sutured in the later period, and solves the problem of the leakage phenomenon in the later period caused by the difficulty in arranging the water stop steel plate during construction.

Description

Technical Field

[0001] This invention relates to the field of waterproof construction technology, and in particular to a structure and construction method for a temporary partition wall that combines load transfer and waterproofing on both sides of the basement roof slab. Background Technology

[0002] When carrying out waterproofing construction in underground spaces, such as foundation pits located next to subway tunnels, the method of construction in batches and in sections is often adopted. This method requires the installation of temporary partition walls in the foundation pit, and the basement roof slabs on both sides of the partition walls will be disconnected.

[0003] In existing technologies, the basement roof slabs on both sides of the partition wall are disconnected during construction, and the structural slabs on both sides of the foundation pit need to be replaced with supports to transfer force, which makes it impossible to properly install the water-stop steel plate. The current solution prioritizes ensuring the force transfer needs of the foundation pit and does not install the water-stop steel plate, but this leaves a safety hazard and is prone to leakage of the underground roof slab during later demolition. Therefore, a temporary partition wall with a structure and construction method that combines force transfer to the basement roof slabs on both sides and waterproofing is proposed to solve the above problems. Summary of the Invention

[0004] To address the aforementioned technical issues, this invention proposes a structure and construction method for a temporary partition wall that combines force transmission and waterproofing on both sides of the basement roof slab. This method effectively ensures the safety of force transmission in the foundation pit and prevents leakage of the basement roof slab during subsequent dismantling and suturing of the temporary partition wall.

[0005] The technical solution to achieve the purpose of this invention is: a structure and construction method for a temporary partition wall with both load transfer and waterproofing on the basement roof slab, including load transfer brackets set on both sides of the partition wall, wherein load transfer brackets are provided with load transfer steel bars inside, and further includes;

[0006] The main body of the top plate is set above the force transmission bracket, and the main body of the top plate is provided with top plate steel bars. The force transmission steel bars extend into the main body of the top plate and are welded and fixed to the top plate steel bars.

[0007] A waterstop steel plate is installed on one side of the main body of the top slab.

[0008] In some embodiments, the force-transmitting corbel and the main body of the top plate are jointly provided with shear-resistant reinforcing bars, which are welded and fixed together with the force-transmitting reinforcing bars and the top plate reinforcing bars.

[0009] In some embodiments, reinforcing bars for connecting the two force-transmitting brackets to the main body of the top plate are provided in the stitching area.

[0010] A construction method for a temporary partition wall that serves both load transfer and waterproofing purposes on the basement roof slabs on both sides: including:

[0011] Step 1: When constructing the basement roof slab, a force-transfer bracket is installed at the lower part of the junction between the temporary partition wall and the main body of the roof slab, close to the bottom of the slab. Force-transfer steel bars are installed inside the force-transfer bracket to transfer the force to the main body of the roof slab.

[0012] Step 2: Install shear reinforcement bars in the force transmission bracket and the main body of the roof slab to ensure that no cracks occur between the force transmission bracket and the basement roof slab;

[0013] Step 3: Install water-stop steel plates at the ends of the main body of the top slab to ensure waterproofing;

[0014] Step 4: When demolishing the temporary partition wall, remove the excess concrete of the load-bearing bracket, but retain the load-bearing steel bars;

[0015] Step 5: Connect the reinforcing bars in the seam area with the top slab reinforcing bars and force transmission reinforcing bars on both sides, and pour the post-cast structure of the seam area with micro-expansion fine aggregate concrete of a higher grade.

[0016] Step 6: Extend the waterproofing layer 250mm on each side of the post-cast structure in the joint area, and then apply waterproofing to the basement roof slab.

[0017] The significant advantages of this invention compared to existing technologies are:

[0018] This invention solves the problem of force transmission in the basement roof slabs on both sides of the temporary partition wall by setting up force-transfer corbels. The force-transfer corbels are reinforced with reinforcing steel bars, and shear-resistant reinforcing steel bars are set between the force-transfer corbels and the basement roof slabs. The reinforcing steel bars in the joint area are connected to the reinforcing steel bars in the roof slabs on both sides and the force-transfer reinforcing steel bars in the corbels. The joint area is constructed with high-grade micro-expansion fine stone concrete and is a post-cast structure. This invention takes into account both the force transmission and waterproofing functions of the basement roof slabs on both sides of the temporary partition wall, which can effectively ensure the safety of force transmission in the foundation pit. When the temporary partition wall is removed and the joint is made later, it can more effectively prevent the basement roof slab from leaking.

[0019] This solves the problem of leakage that occurred later due to the difficulty in installing water-stop steel plates during construction. Attached Figure Description

[0020] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the construction (including the middle partition) structure provided in one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the construction (excluding the middle partition) structure provided in one embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Force-transmitting corbel; 2. Force-transmitting reinforcing bars; 3. Main structure of the top slab; 4. Top slab reinforcing bars; 5. Water-stop steel plate; 6. Shear-resistant reinforcing bars; 7. Seam reinforcement bars. Detailed Implementation

[0025] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] This invention provides an improved structure and construction method for a temporary partition wall that integrates force transmission and waterproofing in the basement roof slabs on both sides. The technical solution of this invention is as follows:

[0027] like Figure 1 As shown, a structure and construction method for a temporary partition wall with both load transfer and waterproofing on the basement roof slabs on both sides includes load transfer brackets 1 set on both sides of the partition wall, with load transfer steel bars 2 inside the load transfer brackets 1, and also includes;

[0028] The top plate body 3 is set above the force transmission bracket 1. The top plate body 3 is provided with top plate steel bars 4. The force transmission steel bars 2 extend into the top plate body 3 and are welded and fixed to the top plate steel bars 4.

[0029] A waterstop steel plate 5 is installed on one side of the main body 3 of the top plate, and the waterstop steel plate 5 is in a raised shape.

[0030] like Figure 2 As shown, in one embodiment, shear-resistant reinforcing bars 6 are provided in both the force-transmitting bracket 1 and the main body of the top plate 3. The shear-resistant reinforcing bars 6 are welded and fixed to the force-transmitting reinforcing bars 2 and the top plate reinforcing bars 4.

[0031] In one embodiment, reinforcing bars 7 for connecting the two force-transmitting brackets 1 and the main body of the top plate are provided in the stitching area.

[0032] It should be added that when there is a need not to retain the force transmission bracket 1 as a permanent structure, the force transmission bracket 1 can be removed together with the temporary partition wall, and all the force transmission steel bars 2 can be cut off without affecting the purpose of this invention.

[0033] A construction method for a temporary partition wall that serves both load transfer and waterproofing purposes on the basement roof slabs on both sides: including:

[0034] Step 1: When constructing the basement roof slab, a force-transmitting bracket 1 is installed at the lower part of the junction between the temporary partition wall and the main body of the roof slab 3, close to the bottom of the slab. A force-transmitting steel bar 2 is installed inside the force-transmitting bracket 1 to transfer the force to the main body of the roof slab 3 through the force-transmitting bracket 1.

[0035] Step 2: Shear reinforcement 6 is installed in the force transmission bracket 1 and the main body of the top slab 3 to ensure that no cracks occur between the force transmission bracket 1 and the basement top slab;

[0036] Step 3: Install water-stop steel plates 5 at the ends of the main body 3 of the top plate to ensure waterproofing effect;

[0037] Step 4: When demolishing the temporary partition wall, remove the excess concrete of the force transmission bracket 1, and retain the force transmission steel bar 2;

[0038] Step 5: Connect the reinforcing bars 7 in the seam area with the top slab reinforcing bars 4 and the force transmission reinforcing bars 2 on both sides, and pour the post-cast structure of the seam area with micro-expansion fine stone concrete of a higher grade.

[0039] Step 6: Extend the waterproofing layer 250mm on each side of the post-cast structure in the joint area, and then apply waterproofing to the basement roof slab.

[0040] The technical means disclosed in this invention are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this invention are common knowledge to those skilled in the art.

Claims

1. A structure for load transfer and waterproofing of basement roof slabs on both sides of a temporary partition wall, comprising load transfer brackets (1) installed on both sides of the partition wall, characterized in that: The force-transmitting bracket (1) is internally provided with force-transmitting steel bars (2), and also includes: The top plate body (3) is set above the force transmission bracket (1), and the top plate body (3) is provided with top plate steel bars (4). The force transmission steel bars (2) extend into the top plate body (3) and are welded and fixed to the top plate steel bars (4). Waterstop steel plate (5) is installed on one side of the main body of the top plate (3); The force transmission bracket (1) and the main body of the top plate (3) are both provided with shear-resistant reinforcing steel bars (6), and the shear-resistant reinforcing steel bars (6) are welded and fixed to the force transmission steel bars (2) and the top plate steel bars (4); Both sides of the force-transmitting bracket (1) and the top plate body (3) are provided with seam reinforcement (7) for mutual connection.

2. The construction method for a temporary partition wall with both load-bearing and waterproofing features on the basement roof slabs on both sides, as described in claim 1, is characterized in that: include: Step 1: When constructing the basement roof slab, a force transmission bracket (1) is set at the lower part of the junction of the temporary partition wall and the main body of the roof slab (3) and close to the bottom of the slab. A force transmission steel bar (2) is set inside the force transmission bracket (1) to transmit the force to the main body of the roof slab (3) through the force transmission bracket (1). Step 2: Shear reinforcement (6) is installed in the force transmission bracket (1) and the main body of the top slab (3) to ensure that no cracks occur between the force transmission bracket (1) and the basement top slab; Step 3: Install a water-stop steel plate (5) at the end of the main body of the top plate (3) to ensure the waterproof effect; Step 4: When demolishing the temporary partition wall, remove the excess concrete of the force transmission bracket (1) and retain the force transmission steel bar (2); Step 5: Connect the joint reinforcement (7) with the top slab reinforcement (4) and the force transmission reinforcement (2) on both sides, and pour the joint post-cast structure with micro-expansion fine stone concrete of a higher grade. Step 6: Extend the waterproofing layer 250mm on each side of the post-cast structure in the joint area, and then apply waterproofing to the basement roof slab.

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