Full cast-in-situ concrete outer wall and construction method

Abstract

The present application relates to a cast-in-situ concrete outer wall, and particularly relates to a full cast-in-situ concrete outer wall and a construction method, which comprises a structure wall and two structure columns, the structure wall is arranged between the two oppositely arranged structure columns, and a pull joint structure is filled between the structure wall and the structure columns; the structure wall comprises connecting steel bars and cast-in-situ concrete, the middle part of the connecting steel bars is fixed with the cast-in-situ concrete, the two end parts of the connecting steel bars respectively extend into the structure columns through the pull joint structure, and the two end parts of the connecting steel bars are fixedly connected with the steel bars in the structure columns through anchoring, and the pull joint structure is a sectional structure; the full cast-in-situ concrete outer wall of the present application is flexible in connection between the structure wall and the structure columns due to the fact that the pull joint structure comprises two oppositely arranged PVC groove plates, the two PVC groove plates are fixedly connected to form a plurality of cavities, and hard PVC plates are arranged in the cavities, so that the deformation of the full cast-in-situ outer wall structure can be deformed together with the seismic wave, the outer wall is prevented from cracking, and the safety of the building structure is ensured.

Description

Technical Field

[0001] This invention relates to a cast-in-place concrete exterior wall, specifically to a fully cast-in-place concrete exterior wall and its construction method. Background Technology

[0002] In the existing technology, the construction progress of secondary structure masonry projects is greatly accelerated by using cast-in-place concrete structures for the exterior walls. However, when the exterior walls of a building are made of cast-in-place concrete, due to the high rigidity of the exterior walls, when an earthquake occurs, the deformation of the cast-in-place exterior wall structure cannot be deformed with the seismic waves, which will lead to cracking of the wall and thus make the building structurally unsafe.

[0003] Therefore, a fully cast-in-place concrete exterior wall is needed to ensure the structural safety of the building. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fully cast-in-place concrete exterior wall and its construction method.

[0005] This invention provides a fully cast-in-place concrete exterior wall, including a structural wall and two structural columns, wherein the structural wall is disposed between the two opposing structural columns, and a tie-joint structure is filled between the structural wall and the structural columns;

[0006] The structural wall includes connecting steel bars and cast-in-place concrete. The middle part of the connecting steel bars is fixed to the cast-in-place concrete, and the two ends of the connecting steel bars extend through the tie joint structure into the structural column. The two ends of the connecting steel bars are anchored and fixedly connected to the steel bars in the structural column.

[0007] The joint structure is a segmented structure, and the side of the joint structure that is on the same side as the outer wall of the structural wall is sealed with a waterproof layer.

[0008] The joint structure includes a plurality of first PVC grooved plates and a plurality of second PVC grooved plates arranged sequentially from the inside to the outside, with one side of the first PVC grooved plate and one side of the second PVC grooved plate facing each other. The middle part of the connecting steel bar fixes the plurality of first PVC grooved plates and second PVC grooved plates together. A plurality of first protrusions are fixedly connected to one side of the first PVC grooved plate, and a plurality of second protrusions are fixedly connected to one side of the second PVC grooved plate. The first protrusions and second protrusions are arranged opposite each other, and two first protrusions and two second protrusions are spaced apart to form a plurality of cavities.

[0009] A further embodiment is that several first PVC grooved plates and several second PVC grooved plates are provided with through holes, and the connecting steel bars are used to fix and connect several first PVC grooved plates and second PVC grooved plates through the through holes.

[0010] A further embodiment is that the connecting steel bars are straight steel bars, including one of the following: reinforcing bars, support bars, and distribution bars.

[0011] A further embodiment is that the width of several of the cavities is 20mm, and a rigid PVC board is disposed inside the cavity.

[0012] A further embodiment is that the first PVC groove plate and the second PVC groove plate, which are fixedly connected to each other, form a structural groove at one end near the outer side of the outer wall of the structural wall, and a waterproof layer is provided in the structural groove.

[0013] The waterproof layer includes a first polyurethane weather-resistant adhesive layer and a second polyurethane weather-resistant adhesive layer. The inner side of the structural groove is bonded to the outer side of the first polyurethane weather-resistant adhesive layer, and the inner side of the first polyurethane weather-resistant adhesive layer and the outer side of the second polyurethane weather-resistant adhesive layer are tightly adhered and fixedly connected.

[0014] A construction method for a fully cast-in-place concrete exterior wall, comprising the following steps:

[0015] S1: Calculate and determine the location of structural walls and columns, and lay out the positioning lines for structural walls and columns.

[0016] S2: Fill the gap between the structural wall and the structural column with a tie-line structure;

[0017] S3: Construct the reinforcing bars for the structural walls and columns separately, and then tie the reinforcing bars for the structural walls and columns.

[0018] S4: Anchor the tie joint structure between the structural wall and the structural column.

[0019] S5: Constructing structural walls and columns with concrete;

[0020] S6: Apply polyurethane weather-resistant adhesive to the groove on the outer wall side of the joint structure;

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] (1) The fully cast-in-place concrete exterior wall of the present invention is provided with a tie joint structure between the structural wall and the structural column, and the structural wall, the tie joint structure and the structural column are fixedly connected by connecting steel bars. Since the tie joint structure includes two PVC grooved plates arranged opposite to each other, and the two PVC grooved plates are fixedly connected to form several cavities, and rigid PVC plates are provided in the cavities, the tie joint structure keeps the structural wall and the structural column in a flexible connection. Therefore, the deformation of the fully cast-in-place exterior wall structure can deform with the earthquake wave, avoiding cracking of the exterior wall. When the structural wall and the structural column are cast in place at the same time, the construction efficiency is improved while the seismic safety performance of the building structure is improved, ensuring the structural safety of the building.

[0023] (2) The present invention uses polyurethane weather-resistant sealant to seal the groove on the outer side of the external wall of the tie-joint structure, so that the external wall of the building has waterproof performance. Attached Figure Description

[0024] The following figures are for illustrative purposes only and are not intended to limit the scope of the invention, wherein:

[0025] Figure 1 : This is an elevation view of the present invention;

[0026] Figure 2 : This is a schematic cross-sectional view of the AA of the present invention;

[0027] Figure 3 : This is a schematic diagram of the seam structure in this invention;

[0028] In the diagram: 1-connecting steel bar, 2-tension joint structure, 2-1-first PVC groove plate, 2-2-second PVC groove plate, 2-3-construction groove, 3-construction wall, 4-structural column. Detailed Implementation

[0029] To make the objectives, technical solutions, design methods, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0030] like Figures 1-3 As shown, the present invention provides a fully cast-in-place concrete exterior wall, including a structural wall 3 and two structural columns 4, wherein the structural wall 3 is disposed between the two structural columns 4 which are arranged opposite to each other, and a tie joint structure 2 is filled between the structural wall 3 and the structural columns 4.

[0031] The structural wall 3 includes connecting steel bars 1 and cast-in-place concrete. The middle part of the connecting steel bars 1 is fixed to the cast-in-place concrete, and the two ends of the connecting steel bars 1 extend through the tie joint structure 2 into the structural column 4, and the two ends of the connecting steel bars 1 are anchored and fixedly connected to the steel bars in the structural column 4.

[0032] The joint structure 2 is a segmented structure, and the side of the joint structure 2 that is on the same side as the outer wall of the structural wall 3 is sealed with a waterproof layer.

[0033] The joint structure 2 includes a plurality of first PVC grooved plates 2-1 and a plurality of second PVC grooved plates 2-2 arranged sequentially from the inside to the outside, with one side of the first PVC grooved plate 2-1 and one side of the second PVC grooved plate 2-2 facing each other. The connecting steel bar 1 fixes the plurality of first PVC grooved plates 2-1 and second PVC grooved plates 2-2 together in the middle. A plurality of first protrusions are fixedly connected to one side of the first PVC grooved plate 2-1, and a plurality of second protrusions are fixedly connected to one side of the second PVC grooved plate 2-2. The first protrusions and second protrusions are arranged opposite each other, and two first protrusions and two second protrusions are spaced apart to form a plurality of cavities.

[0034] It is worth noting that the PVC grooved plate and the reinforcing steel are anchored and fixed between the structural wall and the structural column. The anchoring method is to set through holes in the PVC grooved plate, and the reinforcing steel passes through the through holes for fixing. The PVC grooved plate is set with two opposite panels. Several first protrusions are fixedly connected to one side of the first PVC grooved plate 2-1, and several second protrusions are fixedly connected to one side of the second PVC grooved plate 2-2. The first protrusions and second protrusions are arranged opposite each other, and several cavities are formed by two first protrusions and two second protrusions spaced apart. The width of the cavity is 20mm, and a rigid PVC plate is set in the cavity.

[0035] A further embodiment is that several first PVC grooved plates 2-1 and several second PVC grooved plates 2-2 are provided with through holes, and the connecting steel bar 1 is fixedly connected to several first PVC grooved plates 2-1 and second PVC grooved plates 2-2 through the through holes.

[0036] A further embodiment is that the connecting steel bar 1 is a straight steel bar, including one of the following: reinforcing bar, support bar, and distribution bar.

[0037] A further embodiment is that the width of several of the cavities is 20mm, and a rigid PVC board is disposed inside the cavity.

[0038] A further embodiment is that the first PVC groove plate 2-1 and the second PVC groove plate 2-2, which are fixedly connected to each other, form a structural groove 2-3 near the outer side of the outer wall of the structural wall 3, and a waterproof layer is provided in the structural groove 2-3.

[0039] The waterproof layer includes a first polyurethane weather-resistant adhesive layer and a second polyurethane weather-resistant adhesive layer. The inner side of the structural groove 2-3 is bonded to the outer side of the first polyurethane weather-resistant adhesive layer, and the inner side of the first polyurethane weather-resistant adhesive layer and the outer side of the second polyurethane weather-resistant adhesive layer are tightly bonded and fixedly connected.

[0040] A construction method for a fully cast-in-place concrete exterior wall, comprising the following steps:

[0041] S1: Calculate and determine the positions of structural wall 3 and structural column 4, and lay out the positioning lines for structural wall 3 and structural column 4.

[0042] S2: Fill the space between the structural wall 3 and the structural column 4 with the tie joint structure 2;

[0043] S3: Construct the reinforcing bars for structural wall 3 and structural column 4 respectively, and then tie the reinforcing bars for structural wall 3 and structural column 4.

[0044] S4: Anchor the tie joint structure 2 between the structural wall 3 and the structural column 4.

[0045] S5: Construct structural wall 3 and structural column 4 with concrete;

[0046] S6: Apply polyurethane weather-resistant adhesive to the groove on the outer wall side of the joint structure 2;

[0047] It is worth noting that the fully cast-in-place concrete exterior wall uses a tie-joint structure between the structural wall and the structural column. The structural wall, tie-joint structure, and structural column are fixedly connected by reinforcing bars. Since the tie-joint structure includes two oppositely arranged PVC grooved plates, and the two PVC grooved plates are fixedly connected to form several cavities with a width of 20mm, and rigid PVC plates are placed inside the cavities, the tie-joint structure keeps the structural wall and structural column flexibly connected. Therefore, the deformation of the fully cast-in-place exterior wall structure can deform along with the seismic waves, avoiding cracking of the exterior wall. When the structural wall and structural column are cast in place at the same time, the construction efficiency is improved while the seismic safety performance of the building structure is improved, ensuring the structural safety of the building.

[0048] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A fully cast-in-place concrete exterior wall, characterized in that: It includes a structural wall (3) and two structural columns (4), with the structural wall (3) set between the two structural columns (4) arranged opposite to each other, and a tie-span structure (2) filling the space between the structural wall (3) and the structural columns (4); The structural wall (3) includes connecting steel bars (1) and cast-in-place concrete. The middle part of the connecting steel bars (1) is fixed to the cast-in-place concrete. The two ends of the connecting steel bars (1) extend through the tie joint structure (2) into the structural column (4), and the two ends of the connecting steel bars (1) are anchored and fixedly connected to the steel bars in the structural column (4). The joint structure (2) is a segmented structure, and the joint structure (2) and the outer wall side of the structural wall (3) are sealed with a waterproof layer. The joint structure (2) includes a plurality of first PVC groove plates (2-1) and a plurality of second PVC groove plates (2-2) arranged sequentially from the inside to the outside. The first PVC groove plate (2-1) is arranged on one side and the second PVC groove plate (2-2) is arranged opposite to each other. The connecting steel bar (1) fixes the plurality of first PVC groove plates (2-1) and second PVC groove plates (2-2) together in the middle. A plurality of first protrusions are fixedly connected to one side of the first PVC groove plate (2-1), and a plurality of second protrusions are fixedly connected to one side of the second PVC groove plate (2-2). The first protrusions and second protrusions are arranged opposite to each other, and two first protrusions and two second protrusions are spaced apart to form a plurality of cavities. The width of several of the cavities is 20mm, and a rigid PVC board is provided inside the cavity; The first PVC groove plate (2-1) and the second PVC groove plate (2-2) are fixedly connected to each other and form a structural groove (2-3) at one end near the outer side of the outer wall of the structural wall (3). A waterproof layer is provided in the structural groove (2-3). The waterproof layer includes a first polyurethane weather-resistant adhesive layer and a second polyurethane weather-resistant adhesive layer. The inner side of the structural groove (2-3) is bonded to the outer side of the first polyurethane weather-resistant adhesive layer, and the inner side of the first polyurethane weather-resistant adhesive layer and the outer side of the second polyurethane weather-resistant adhesive layer are tightly bonded and fixedly connected. The connecting steel bar (1) is a straight steel bar, including one of the following: reinforcing bar, support bar, and distribution bar.

2. The fully cast-in-place concrete exterior wall according to claim 1, characterized in that, A plurality of first PVC grooved plates (2-1) and a plurality of second PVC grooved plates (2-2) are provided with through holes, and the connecting steel bar (1) fixes the plurality of first PVC grooved plates (2-1) and second PVC grooved plates (2-2) through the through holes.

3. A construction method for a fully cast-in-place concrete exterior wall according to any one of claims 1-2, characterized in that, The construction method includes the following steps: S1: Calculate and determine the location of the structural wall (3) and structural column (4); S2: Fill the space between the structural wall (3) and the structural column (4) with a tie-joint structure (2); S3: Construct the reinforcing bars for the structural wall (3) and structural column (4) respectively, and then tie the reinforcing bars for the structural wall (3) and structural column (4). S4: Anchor the tie joint structure (2) between the structural wall (3) and the structural column (4). S5: Construct structural walls (3) and structural columns (4) using concrete. S6: Apply polyurethane weather-resistant adhesive to the groove on the outer wall side of the tie joint structure (2).

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