Deep buried shear resistant post-cast concrete rigid steel plate wall and its construction method

Abstract

The present invention discloses a deeply buried anti-shear post-cast concrete rigid steel plate wall and a construction method thereof, comprising anchor bolts, corner columns, middle columns, shear members and steel plates, which effectively improve the bearing capacity of the shear wall. At the same time, the shear members at the bottom of the steel plate wall are made of steel vertical plates with a relatively long length, which effectively increases the shear and anti-floating capacity of large-span or high-rise structures. After the deeply buried anti-shear post-cast concrete rigid steel plate wall of the present invention is applied to the core tube, the bearing, shear and anti-floating capacity of the core tube are improved, and the corresponding construction method improves the operability and construction efficiency of the construction of the post-cast concrete rigid steel plate shear wall. The present invention solves the problem of weak bearing capacity of existing steel plate shear walls.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a deeply buried shear-resistant post-cast concrete rigid steel plate wall and a construction method thereof. Background Art

[0002] With the development of large-span or super-high structure design, the upper structure load of building structure is getting larger and larger. In order to meet the transmission of upper load of large-span or super-high structure and the bearing capacity of lower structure of building, more and more core tubes use shear walls with built-in steel plate composite structure, which not only improves the vertical bearing capacity of core tubes but also improves the horizontal shear resistance. The existing steel plate shear wall has weak bearing capacity.

[0003] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0004] In order to overcome the defects of the prior art, a deeply buried shear-resistant post-cast concrete rigid steel plate wall and a construction method thereof are provided to solve the problem of weak bearing capacity of the existing steel plate shear wall.

[0005] In order to achieve the above object, a deep-buried shear-resistant post-cast concrete rigid steel plate wall is provided, comprising:

[0006] The lower structure comprises a plurality of lower columns and shear members arranged at intervals along the circumferential direction of the core tube, the bottom of the column foot of the lower column is connected with a plurality of anchor bolts, the outer sleeves of the plurality of anchor bolts are provided with support members, the support members are supported on the column foot, the shear member is arranged between two of the lower columns, the lower parts of the anchor bolts, the support members and the shear member are buried in the foundation slab and connected to the bottom reinforcement of the foundation slab, the shear member comprises a plurality of vertical plates arranged at intervals along the circumferential direction of the core tube and a connecting plate connected to the plurality of vertical plates, the upper ends of the plurality of vertical plates are connected with a socket member, the socket member is connected between the middle parts of two adjacent lower columns, the socket member is formed with a socket slot, and the socket slot is arranged along the circumferential direction of the core tube;

[0007] The upper structure comprises an upper column and a steel plate, wherein the upper part of each lower column is coaxially connected to an upper column, the lower end of the steel plate is embedded in the socket, the upper parts of the steel plates on opposite sides are respectively connected to two adjacent upper columns, and the lower parts of the steel plates on opposite sides are respectively connected to the upper parts of two adjacent lower columns;

[0008] Post-cast concrete covers the upper part of the upper structure, the lower column and the shear member.

[0009] Furthermore, the support member includes:

[0010] A plurality of supporting feet are arranged along the circumferential direction of the lower column, and the plurality of supporting feet are arranged on the outer sides of the plurality of anchor bolts;

[0011] The ring beam is fixedly arranged on the top of the plurality of supporting feet, the bottom of the column foot is connected with a column foot bottom plate, and the inner edge of the ring beam is supported on the outer edge of the column foot bottom plate.

[0012] Furthermore, a connecting beam is connected to the middle parts of the plurality of supporting legs.

[0013] Furthermore, a pressure plate is connected to the bottom of the support leg.

[0014] Furthermore, the lower column and the upper column are cross-rigid steel columns.

[0015] Furthermore, the receiving member includes:

[0016] A capping plate, to which the tops of the plurality of vertical plates are connected;

[0017] A plurality of ear plates are vertically arranged on the base plate, the plurality of ear plates are spaced apart along the length direction of the base plate, a notch is opened on the upper part of the ear plate, and the notches of the plurality of ear plates are connected to form the socket.

[0018] Furthermore, stiffening ribs are formed on opposite sides of the steel plate.

[0019] Furthermore, the upper ends of the upper columns are connected to floor steel beams.

[0020] The present invention provides a construction method for a deeply buried shear-resistant post-cast concrete rigid steel plate wall, comprising the following steps:

[0021] A plurality of support members are arranged at intervals along the circumferential direction of the core tube, and the support members are connected to the bottom ribs of the foundation slab;

[0022] Installing lower columns on the plurality of support members respectively, and connecting the plurality of anchor bolts of the lower columns to the bottom reinforcement;

[0023] A shear member is arranged between two lower-layer columns, and the lower part of the shear member is connected to the bottom reinforcement of the foundation slab, and the upper receiving member of the shear member is connected to the middle part of two adjacent lower-layer columns to form a lower-layer structure;

[0024] Pouring concrete of the foundation slab so that the anchor bolts of the lower structure, the support members and the lower part of the shear member are buried in the foundation slab;

[0025] Coaxially connecting an upper column to the upper portion of each lower column;

[0026] The lower end of the steel plate is embedded in the socket, the upper parts of the steel plate on two opposite sides are respectively connected to the two adjacent upper columns, and the lower parts of the steel plate on two opposite sides are respectively connected to the upper parts of the two adjacent lower columns to form an upper structure;

[0027] Cast the post-cast concrete so that the post-cast concrete covers the upper structure, the lower column and the upper part of the shear-resistant member to form a deeply buried shear-resistant post-cast concrete rigid steel plate wall.

[0028] The beneficial effect of the present invention is that the deeply buried shear-resistant post-cast concrete rigid steel plate wall of the present invention is composed of anchor bolts, corner columns, middle columns, shear members, steel plates and floor steel beams, etc., which effectively improves the bearing capacity of the shear wall. At the same time, the shear members at the bottom of the steel plate wall are made of steel vertical plates with a relatively long length, which effectively increases the shear resistance and anti-floating capacity of large-span or high-rise structures. The bottom of the deeply buried shear-resistant post-cast concrete rigid steel plate wall of the present invention is designed with a long strip of shear members with a relatively large height, which has a novel design, good force-bearing effect, convenient construction, complete functions and high safety. After the deeply buried shear-resistant post-cast concrete rigid steel plate wall of the present invention is applied to the core tube, the bearing, shear resistance and anti-floating capacity of the core tube are improved, and the corresponding construction method improves the operability and construction efficiency of the post-cast concrete rigid steel plate shear wall construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0030] Figure 1 It is a schematic structural diagram of a deeply buried shear-resistant post-cast concrete rigid steel plate wall according to an embodiment of the present invention.

[0031] Figure 2 Schematic diagram of the structure of the shear member according to an embodiment of the present invention.

[0032] Figure 3 Schematic diagram of the structure of a support member according to an embodiment of the present invention.

[0033] Figure 4 Schematic diagram of the decomposition structure of the upper structure of an embodiment of the present invention.

[0034] Figures 5 to 8 The present invention is a schematic diagram of the steps of a construction method for a deeply buried shear-resistant post-cast concrete rigid steel plate wall according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] Reference Figures 1 to 8 As shown, the present invention provides a deeply buried shear-resistant post-cast concrete rigid steel plate wall, comprising: a lower structure 1 and an upper structure 2.

[0038] The lower structure 1 includes a plurality of lower columns 11 and shear members 12. The plurality of lower columns 11 are arranged at intervals along the circumferential direction of the core tube.

[0039] See also Figure 3 As shown, the bottom of the column foot of the lower column 11 is connected with a plurality of anchor bolts 112. The outer sleeve of the plurality of anchor bolts 112 is provided with a support member 14. The support member 14 is supported on the column foot of the lower column 11. The shear member 12 is arranged between two lower columns 11.

[0040] The lower parts of the anchor bolts 112 , the support members 14 and the shear members 12 are embedded in the foundation slab and connected to the bottom reinforcement of the foundation slab.

[0041] See also Figure 2 As shown, the shear member 12 includes a vertical plate 121 and a connecting plate 122. There are multiple vertical plates. The multiple vertical plates are arranged at intervals along the circumferential direction of the core tube. The connecting plate 122 is connected to the multiple vertical plates 121. In this embodiment, the connecting plates 122 are respectively arranged at the upper, middle and lower parts of the vertical plates.

[0042] Continue reading Figure 2 As shown, the upper ends of the plurality of vertical plates 121 are connected with a receiving member 13. The receiving member 13 is connected between the middle parts of two adjacent lower columns 11. The receiving member 13 is formed with a socket. The socket is arranged along the circumferential direction of the core tube.

[0043] See also Figure 1 As shown, the upper structure 2 includes upper columns 21 and steel plates 22 .

[0044] In this embodiment, the lower column 11 and the upper column 21 are cross-rigid steel columns. The upper part of each lower column 11 is coaxially connected to an upper column 21.

[0045] The lower end of the steel plate 22 is embedded in the socket. The upper parts of the steel plate 22 on opposite sides are respectively connected to the two adjacent upper columns 21. The lower parts of the steel plate 22 on opposite sides are respectively connected to the upper parts of the two adjacent lower columns 11.

[0046] The post-cast concrete is coated on the upper part of the upper structure 2 , the lower column 11 and the shear member 12 .

[0047] Continue reading Figure 3 As shown, in this embodiment, the support member 14 includes: a support leg 141 and a ring beam 142 .

[0048] There are multiple supporting feet. The multiple supporting feet are arranged along the circumferential direction of the lower column 11. In this embodiment, the multiple supporting feet 14 are arranged in a matrix. The multiple supporting feet 141 are arranged on the outside of the multiple anchor bolts 112.

[0049] The ring beam 142 is fixedly arranged on the top of the plurality of supporting feet 141. The bottom of the column foot is connected with the column foot bottom plate 111. The inner edge of the ring beam 142 is supported on the outer edge of the column foot bottom plate.

[0050] In this embodiment, the support member further comprises a connecting beam. Specifically, the middle of the plurality of supporting legs 141 is connected with a connecting beam 143. The bottom of the supporting legs 141 is connected with a pressure plate.

[0051] Continue reading Figure 2 In this embodiment, the receiving member is used to install and connect the steel plates. The receiving member 13 includes: a base plate 131 and a plurality of ear plates 132. The tops of the plurality of vertical plates 121 are connected to the base plate 131.

[0052] The ear plates 132 are vertically arranged on the support plate 131. The plurality of ear plates 132 are arranged at intervals along the length direction of the support plate 131. A notch is provided on the upper part of the ear plates 132. The notches of the plurality of ear plates 132 are connected to form a socket.

[0053] See also Figure 4 As shown, stiffening ribs are formed on opposite sides of the steel plate 22. The upper ends of the upper columns 21 are connected to floor steel beams 23.

[0054] In this embodiment, combined with Figure 1 As shown, the upper column or the lower column includes a corner column at a corner and an intermediate column located between two adjacent corner columns. The corner column is a cross-rigid steel column. The intermediate column is an H-shaped steel column.

[0055] The steel plate includes a plurality of unit plates. The unit plates are formed by splicing large plates and small plates. The small plates are connected to the upper columns. The upper parts of the large plates and the lower plates are connected with floor steel beams. The floor steel beams of the large plates and the lower plates are connected together.

[0056] The present invention provides a construction method for a deeply buried shear-resistant post-cast concrete rigid steel plate wall, which is characterized by comprising the following steps:

[0057] A plurality of support members 14 are arranged at intervals along the circumferential direction of the core tube, and the support members 14 are connected to the bottom ribs of the foundation slab;

[0058] Install the lower columns 11 on the multiple support members 14 respectively, and connect the multiple anchor bolts 112 of the lower columns 11 to the bottom reinforcement;

[0059] A shear member 12 is arranged between two lower columns 11, and the lower part of the shear member 12 is connected to the bottom reinforcement of the foundation slab, and the upper receiving member of the shear member 12 is connected to the middle part of the two adjacent lower columns 11 to form a lower structure 1;

[0060] Concrete the foundation slab is poured so that the anchor bolts 112, the support members 14 and the lower part of the shear member 12 of the lower structure 1 are buried in the foundation slab;

[0061] An upper column 21 is coaxially connected to the upper portion of each lower column 11;

[0062] The lower end of the steel plate 22 is embedded in the socket, the upper parts of the steel plate 22 on opposite sides are respectively connected to the two adjacent upper columns 21, and the lower parts of the steel plate 22 on opposite sides are respectively connected to the upper parts of the two adjacent lower columns 11 to form the upper structure 2;

[0063] The post-cast concrete is poured so that the post-cast concrete covers the upper structure 2, the lower column 11 and the upper part of the shear member 12 to form a deeply buried shear-resistant post-cast concrete rigid steel plate 22 wall.

[0064] The deeply buried shear-resistant post-cast concrete rigid steel plate wall of the present invention includes components such as anchor bolts, corner columns, middle columns, shear members, steel plates and floor steel beams, wherein the support members reliably support the corner columns, middle columns and their anchor bolts. The shear members at the bottom of the steel plate wall are made of a steel vertical plate with a width of about 20 cm and a large length, which effectively increases the shear resistance and anti-floating capacity of large-span or high-rise structures. After the bottom steel bars of the foundation are tied, they are placed and fixed on the bottom steel bars to support and fix the corner columns and middle columns. After the corner columns and middle columns are installed, channel steels are used to connect the corner columns and middle columns with the concrete lattice column supports for reinforcement to prevent tilting.

[0065] The bottom of the support is set as a pressure plate to increase the contact area between the support and the bottom steel bar of the foundation, increase the bearing capacity and stability of the support, and also serve as a water stop plate to prevent groundwater from penetrating upward through the support. The top plane size of the support is 5cm larger than the outer edge of the column foot bottom plate, which is used for corner welding and fixing of the column foot bottom plate and the support.

[0066] The top connector of the shear member is connected to the corner column or the middle column, and is temporarily fixed by channel steel support at the segment of the unit plate of the steel plate. A horizontal connector is set on the upper part of the shear member and welded to the steel plate of the upper structure. In order to ensure that the shear member of a larger height has a certain rigidity for easy transportation and installation, three connecting plates are set between the vertical plates of the shear member.

[0067] In order to ensure the convenience of production, transportation and installation, the steel plates are manufactured in sections with a width of about 3m. When the segmented steel plate wall spans floors, the floor steel beams at the floors are manufactured together with the steel plates in sections with the full width, and stiffening plates are set on the segmented steel plates to increase the stiffness of the segmented steel plates and reduce deformation during transportation and installation.

[0068] The deeply buried shear-resistant post-cast concrete rigid steel plate wall of the present invention has a structural design that provides relatively large and reliable vertical bearing and horizontal shear-resistant capabilities for large-span or super-high-rise building structures.

[0069] The top of the lower column protrudes about 1.3m from the shear member to facilitate the installation of the upper column. The top of the upper column protrudes about 1.3m from the floor steel beam to facilitate the installation of the upper steel column.

[0070] After the bottom reinforcement of the foundation slab is tied, place the prepared support parts on the bottom reinforcement, correct and level them, and then weld them to the bottom reinforcement. If necessary, diagonal braces can be set to reinforce the support parts as support measures for the installation of steel columns.

[0071] After the support is installed and fixed, install the corner columns around and calibrate them. The corner welds around the base plate of the column foot and the top surface of the support are welded and fixed. Install the shear members between the corner columns, install and fix them in sequence from the corner column to the middle, and use channel steel to support and temporarily fix them at the segment. After the welding connection between the shear member and the corner column and its segment is completed, the temporary fixing channel steel can be removed. Pour the foundation slab concrete and maintain it. Install the upper section of the corner column. Install the steel plate with the middle column attached. Install the steel plate without steel column and weld the butt weld on site.

[0072] The deeply buried anti-shear post-cast concrete rigid steel plate wall of the present invention is composed of anchor bolts, corner columns, middle columns, shear members, steel plates and floor steel beams, etc., which effectively improves the bearing capacity of the shear wall. At the same time, the shear members at the bottom of the steel plate wall are made of steel vertical plates with a relatively long length, which effectively increases the shear resistance and anti-floating capacity of large-span or high-rise structures. The bottom of the deeply buried anti-shear post-cast concrete rigid steel plate wall of the present invention is designed with a long strip of shear members with a relatively large height. The design is novel, the force effect is good, the construction is convenient, the functions are complete, and the safety is high. After the deeply buried anti-shear post-cast concrete rigid steel plate wall of the present invention is applied to the core tube, the bearing, shear resistance and anti-floating capacity of the core tube are improved, and the corresponding construction method improves the operability and construction efficiency of the post-cast concrete rigid steel plate shear wall construction.

[0073] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A deep-buried shear-resistant post-cast concrete rigid steel plate wall, characterized in that: include: The lower structure comprises a plurality of lower columns and shear members arranged at intervals along the circumferential direction of the core tube, the bottom of the column foot of the lower column is connected with a plurality of anchor bolts, the outer sleeves of the plurality of anchor bolts are provided with support members, the support members are supported on the column foot, the shear member is arranged between two of the lower columns, the lower parts of the anchor bolts, the support members and the shear member are buried in the foundation slab and connected to the bottom reinforcement of the foundation slab, the shear member comprises a plurality of vertical plates arranged at intervals along the circumferential direction of the core tube and a connecting plate connected to the plurality of vertical plates, the upper ends of the plurality of vertical plates are connected with a socket member, the socket member is connected between the middle parts of two adjacent lower columns, the socket member is formed with a socket slot, and the socket slot is arranged along the circumferential direction of the core tube; The upper structure comprises an upper column and a steel plate, wherein the upper part of each lower column is coaxially connected to an upper column, the lower end of the steel plate is embedded in the socket, the upper parts of the steel plates on opposite sides are respectively connected to two adjacent upper columns, and the lower parts of the steel plates on opposite sides are respectively connected to the upper parts of two adjacent lower columns; Post-cast concrete covers the upper part of the upper structure, the lower column and the shear member.

2. The deep-buried shear-resistant post-cast concrete rigid steel plate wall according to claim 1 is characterized in that: The support member comprises: A plurality of supporting feet are arranged along the circumferential direction of the lower column, and the plurality of supporting feet are arranged outside the plurality of anchor bolts; The ring beam is fixedly arranged on the top of the plurality of supporting feet, the bottom of the column foot is connected with a column foot bottom plate, and the inner edge of the ring beam is supported on the outer edge of the column foot bottom plate.

3. The deep-buried shear-resistant post-cast concrete rigid steel plate wall according to claim 2 is characterized in that: The middle parts of the plurality of supporting legs are connected with a connecting beam.

4. The deep-buried shear-resistant post-cast concrete rigid steel plate wall according to claim 2 is characterized in that: The bottom of the supporting foot is connected with a pressure bearing plate.

5. The deeply buried shear-resistant post-cast concrete rigid steel plate wall according to claim 2 is characterized in that: The lower column and the upper column are cross-rigid steel columns.

6. The deep-buried shear-resistant post-cast concrete rigid steel plate wall according to claim 1 is characterized in that: The receiving member comprises: A capping plate, to which the tops of the plurality of vertical plates are connected; A plurality of ear plates are vertically arranged on the base plate, the plurality of ear plates are spaced apart along the length direction of the base plate, a notch is opened on the upper part of the ear plate, and the notches of the plurality of ear plates are connected to form the socket.

7. The deep-buried shear-resistant post-cast concrete rigid steel plate wall according to claim 1 is characterized in that: Stiffening ribs are respectively formed on opposite sides of the steel plate.

8. The deep-buried shear-resistant post-cast concrete rigid steel plate wall according to claim 1 is characterized in that: The upper ends of the upper columns are connected with floor steel beams.

9. A construction method for a deep-buried shear-resistant post-cast concrete rigid steel plate wall as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: A plurality of support members are arranged at intervals along the circumferential direction of the core tube, and the support members are connected to the bottom ribs of the foundation slab; Installing lower columns on the plurality of support members respectively, and connecting the plurality of anchor bolts of the lower columns to the bottom reinforcement; A shear member is arranged between two lower-layer columns, and the lower part of the shear member is connected to the bottom reinforcement of the foundation slab, and the upper receiving member of the shear member is connected to the middle part of two adjacent lower-layer columns to form a lower-layer structure; Pouring concrete of the foundation slab so that the anchor bolts of the lower structure, the support members and the lower part of the shear member are buried in the foundation slab; Coaxially connecting an upper column to the upper portion of each lower column; The lower end of the steel plate is embedded in the socket, the upper parts of the steel plate on two opposite sides are respectively connected to the two adjacent upper columns, and the lower parts of the steel plate on two opposite sides are respectively connected to the upper parts of the two adjacent lower columns to form an upper structure; Cast the post-cast concrete so that the post-cast concrete covers the upper structure, the lower column and the upper part of the shear-resistant member to form a deeply buried shear-resistant post-cast concrete rigid steel plate wall.

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