Mixed connection assembly type composite shear wall

Abstract

The utility model discloses a mixed connection assembly type composite shear wall. The upper and lower edges of the UHPC edge-sealing shear wall plate are respectively provided with mortises and tenons, and the upper and lower layers are connected through the mortises and tenons in an embedded manner; the two steel pipe concrete end columns are arranged on the left side and the right side of the UHPC edge sealing shear wall plate respectively. The plurality of spring connecting pieces are separately arranged in gaps between the concrete filled steel tube end columns and the side edges of the UHPC edge sealing shear wall plates; one end of the spring connecting piece is fixedly connected with the UHPC edge sealing shear wall plate, and the other end of the spring connecting piece is fixedly connected with the steel pipe concrete end column. According to the UHPC edge sealing shear wall plate, dry type connection of a mortise and tenon joint structure is adopted, and the quality and efficiency of connection construction are improved; the internal RC wallboard is restrained through the square-frame-shaped UHPC edge banding, the high-strength performance of UHPC is fully utilized, and the anti-seismic capacity of the UHPC edge banding shear wallboard is effectively improved; the deformation self-resetting capacity is provided for the composite shear wall through the elastic restoring force of the high-strength springs, the high-strength springs cooperate with the steel pipe concrete end columns on the two sides, and the overall anti-seismic capacity is improved.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, specifically to a hybrid connection prefabricated composite shear wall. Background Technology

[0002] Prefabricated concrete shear wall structures are the main structural form for residential buildings with a wide range of applications. They have also become an important vehicle for promoting prefabricated buildings and realizing the transformation and upgrading of the industry in recent years, and have a broad application market.

[0003] The development of prefabricated concrete structure technology is still in its initial and exploratory stage. Considering the frequent earthquakes in some regions, the industry currently mainly promotes the "equivalent to cast-in-place" prefabricated concrete structure system. This system requires that edge components, which are key load-bearing parts of shear walls, be cast-in-place to leverage the structural role of traditional masonry structures and improve the overall performance and seismic resistance of prefabricated structures. However, the "equivalent to cast-in-place" concept results in only the shear wall body being prefabricated, while a large number of edge components are still cast-in-place on-site. This parallel assembly and casting process increases the difficulty of construction management, leading to low construction quality and efficiency, and has become a major pain point in the industry, significantly hindering the healthy development of prefabricated concrete structure technology. Utility Model Content

[0004] To address the industry pain points of low construction quality and efficiency caused by the extensive on-site casting of edge components in current prefabricated concrete shear wall structures, this utility model provides a hybrid connection prefabricated composite shear wall. By utilizing the UHPC edge sealing structure, it fully leverages the advantages of prefabrication technology, and in conjunction with high-strength spring connectors and steel pipe concrete end columns, it effectively ensures the reliability of prefabricated shear wall components and their connections, avoids on-site wet work, and improves on-site construction efficiency.

[0005] This utility model adopts the following technical solution: a hybrid connection prefabricated composite shear wall, comprising:

[0006] The UHPC edge-sealed shear wall panel has mortise and tenon joints on the top and bottom edges respectively; the upper and lower UHPC edge-sealed shear wall panels are connected by mortise and tenon joints.

[0007] Two steel-concrete composite end columns are placed on the left and right sides of the UHPC edge-sealed shear wall panel, respectively; there is a gap between the steel-concrete composite end columns and the side of the UHPC edge-sealed shear wall panel.

[0008] Multiple spring connectors are placed in the gap between the steel-concrete end column and the side of the UHPC edge-sealing shear wall panel; one end of the spring connector is fixedly connected to the UHPC edge-sealing shear wall panel, and the other end is fixedly connected to the steel-concrete end column.

[0009] Preferably, the UHPC edge-sealed shear wall panel includes a UHPC edge seal, and an RC wall panel is provided inside the UHPC edge seal.

[0010] Preferably, the UHPC edge banding has a square frame structure, and the upper and lower sides of the UHPC edge banding have the tenon and mortise joints respectively.

[0011] Preferably, the inner edges of the UHPC edge banding all have tenons;

[0012] The RC wall panel has grooves around its perimeter that mate with tenons. These grooves engage with the tenons on the inner side of the UHPC edge banding, keeping the RC wall panel flush with the UHPC edge banding.

[0013] Preferably, the upper and lower steel-concrete end columns are hinged together.

[0014] Preferably, the steel-concrete composite end column includes a steel-concrete composite column body, and the ends of the steel-concrete composite column body are fixed with ear plates. The upper and lower steel-concrete composite end columns are hinged together by ear plates and pins.

[0015] Preferably, the axial direction of the pin is parallel to the thickness direction of the UHPC edge-sealing shear wall panel.

[0016] Preferably, the spring connector includes a spring, with angle steel seats fixed at both ends of the spring; the angle steel seats are L-shaped, with one side of the angle steel seat welded to the end of the spring, and the other side of the angle steel seat welded to the UHPC edge-sealing shear wall panel or steel pipe concrete end column.

[0017] Preferably, stiffening ribs are welded between the two sides of the angle steel seat.

[0018] Preferably, the multiple spring connectors are symmetrically arranged along the centerline of the UHPC edge-sealing shear wall panel, and the spring connectors on each side are evenly distributed along the length of the steel pipe concrete end column.

[0019] The beneficial effects of this utility model are as follows:

[0020] In UHPC edge-sealed shear wall panels, the internal RC wall panels are constrained by the square UHPC edge sealing, making full use of the high strength performance of UHPC and effectively improving the seismic resistance of UHPC edge-sealed shear wall panels;

[0021] UHPC edge-sealed shear wall panels utilize UHPC edge-sealing construction in a mortise and tenon manner, realizing dry connection of UHPC edge-sealed shear wall panels based on mortise and tenon structure, thus improving the quality and efficiency of connection construction;

[0022] The UHPC edge banding and the internal RC wall panel are also provided with tenons at the junction, which further improves the shear resistance of the connection interface between the UHPC edge banding and the RC wall panel and ensures the collaborative performance of the UHPC edge banding and the internal RC wall panel.

[0023] The spring connector uses high-strength springs to transmit force, and utilizes the elastic restoring force of the high-strength springs to provide the composite shear wall with deformation self-resetting capability. The elastic deformation of the high-strength springs themselves coordinates the differential deformation between the UHPC edge-sealing shear wall panel and the steel-concrete composite end column. The load-bearing capacity of the high-strength springs ensures the coordinated work of the UHPC edge-sealing shear wall panel and the steel-concrete composite end column.

[0024] The top and bottom of the steel-concrete composite end column are connected by pins to achieve a hinged connection, which optimizes the stress state of the end column and improves its seismic resistance. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a perspective view of a hybrid connection prefabricated composite shear wall provided for an embodiment of the present utility model.

[0027] Figure 2 This is a perspective view of the UHPC edge-sealing shear wall panel in an embodiment of this utility model.

[0028] Figure 3 This is a perspective view of the spring connector in an embodiment of this utility model.

[0029] Figure 4 This is a perspective view of the steel-concrete composite end column in an embodiment of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. UHPC edge-sealed shear wall panel; 1.1. UHPC edge sealing; 1.1.1. Mortise and tenon joints; 1.2. RC wall panel; 1.1.2. Tenon joints;

[0032] 2. Spring connector; 2.1 Angle steel seat; 2.2 Spring;

[0033] 3. Concrete-filled steel tube end column; 3.1. Concrete-filled steel tube column body; 3.2. Ear plate; 3.3. Pin shaft. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Example 1:

[0037] like Figures 1 to 3 As shown, this utility model provides a hybrid connection prefabricated composite shear wall, which mainly includes a UHPC edge-sealed shear wall panel 1, two steel pipe concrete end columns 3, and multiple spring connectors 2.

[0038] The UHPC-sealed shear wall panel 1 comprises a UHPC edge banding 1.1 and an RC wall panel 1.2. UHPC in UHPC edge banding 1.1 refers to Ultra-high Performance Concrete, and RC in RC wall panel 1.2 refers to Reinforced Concrete. The UHPC edge banding 1.1 has a rectangular frame structure, with a row of evenly distributed tenons 1.1.1 on its upper and lower sides. The inner edges of all four sides of the UHPC edge banding 1.1 have tenons 1.1.2. The RC wall panel 1.2 has a square structure with grooves around its perimeter that mate with the tenons 1.1.2. The grooves around the RC wall panel 1.2 engage with the tenons 1.1.2 on the inner sides of the UHPC edge banding 1.1, ensuring that the RC wall panel 1.2 is flush with the UHPC edge banding 1.1 after installation. During the construction and assembly of the composite shear wall, the upper and lower UHPC edge-sealed shear wall panels 1 are connected by tenon and mortise joints 1.1.1.

[0039] Two steel-concrete composite end columns 3 are symmetrically positioned on the left and right sides of the UHPC edge-sealing shear wall panel 1; there is a gap between the steel-concrete composite end columns 3 and the sides of the UHPC edge-sealing shear wall panel 1. Multiple spring connectors 2 are distributed in the gaps between the steel-concrete composite end columns 3 and the sides of the UHPC edge-sealing shear wall panel 1, symmetrically arranged along the centerline of the UHPC edge-sealing shear wall panel 1, and evenly distributed along the length of the steel-concrete composite end columns 3 on each side. One end of each spring connector 2 is fixedly connected to the UHPC edge-sealing shear wall panel 1, and the other end is fixedly connected to the steel-concrete composite end column 3.

[0040] Example 2:

[0041] Based on the above embodiment one, combined with Figure 1 , Figure 4 As shown, the steel-concrete composite end column 3 includes a steel-concrete composite column body 3.1, into which concrete is poured, and both ends are welded and sealed. Ear plates 3.2 are welded to the ends of the steel-concrete composite column body 3.1. When the upper and lower UHPC edge-sealing shear wall panels 1 are joined, the upper and lower steel-concrete composite end columns 3 are hinged together by the ear plates 3.2 and pins 3.3; wherein the axial direction of the pins 3.3 is parallel to the thickness direction of the UHPC edge-sealing shear wall panel 1.

[0042] Combination Figure 1 , Figure 3 As shown, the spring connector 2 includes a high-strength spring 2.2, with an angle steel seat 2.1 connected to each end of the spring 2.2. The angle steel seat 2.1 is L-shaped, and stiffening ribs are welded between its two sides. One side of the angle steel seat 2.1 is welded to the end of the spring 2.2, and the other side of the angle steel seat 2.1 is welded or bolted to the UHPC edge-sealing shear wall panel 1 or the steel pipe concrete end column 3.

[0043] Example 3:

[0044] Based on the above-described embodiment two, combined with Figures 1 to 4 As shown in the figure, this embodiment provides an assembly method for a hybrid connection prefabricated composite shear wall, including the following steps:

[0045] Step 1: The factory produces UHPC edge-sealed shear wall panels 1, spring connectors 2, and steel pipe concrete end columns 3;

[0046] Step 2: Install spring connector 2 to connect UHPC edge-sealed shear wall panel 1 and steel pipe concrete end column 3 to form an integral composite shear wall;

[0047] Step 3: Hoist the composite shear wall to the design elevation on site;

[0048] Step 4: Horizontally translate the composite shear wall so that the tenon 1.1.1 set at the bottom of the UHPC edge-sealed shear wall panel 1 is embedded into the tenon 1.1.1 exposed in the lower completed composite shear wall, and make the ear plate 3.2 of the steel pipe concrete end column 3 rest against the ear plate 3.2 exposed in the completed composite shear wall.

[0049] Step 5: Insert the pin 3.3 into the ear plate 3.2 to complete the installation of the composite shear wall for this layer.

[0050] This invention addresses the industry pain points of low construction quality and efficiency caused by the extensive on-site casting of edge components in current prefabricated concrete shear wall structures. It provides a composite shear wall structure technology with superior performance, reliable connections, controllable quality, and high construction efficiency. By fully utilizing the advantages of prefabrication technology, this invention effectively ensures the reliability of prefabricated shear wall components and their connections, avoids wet on-site work, improves on-site construction efficiency, realizes industrialized and green prefabricated concrete shear wall structures, and promotes high-quality development in this field.

[0051] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hybrid connection prefabricated composite shear wall, characterized in that, include: UHPC edge-sealed shear wall panel (1), with tenon and tenon joints on the upper and lower sides respectively (1.1.1). The upper and lower UHPC edge-sealed shear wall panels (1) are connected by tenon and mortise joints (1.1.1); Two steel-concrete end columns (3) are placed on the left and right sides of the UHPC edge-sealed shear wall panel (1); there is a gap between the steel-concrete end columns (3) and the side of the UHPC edge-sealed shear wall panel (1); Multiple spring connectors (2) are placed in the gap between the steel pipe concrete end column (3) and the side of the UHPC edge-sealing shear wall panel (1); one end of the spring connector (2) is fixedly connected to the UHPC edge-sealing shear wall panel (1), and the other end is fixedly connected to the steel pipe concrete end column (3).

2. The hybrid connection prefabricated composite shear wall according to claim 1, characterized in that: The UHPC edge-sealed shear wall panel (1) includes a UHPC edge seal (1.1), and an RC wall panel (1.2) is provided inside the UHPC edge seal (1.1).

3. The hybrid connection prefabricated composite shear wall according to claim 2, characterized in that: The UHPC edge banding (1.1) has a square frame structure, and the upper and lower sides of the UHPC edge banding (1.1) are respectively provided with the tenon and mortise (1.1.1).

4. A hybrid connection prefabricated composite shear wall according to claim 2, characterized in that: The inner edges of the UHPC sealing (1.1) are all provided with tenons (1.1.2). The RC wall panel (1.2) has grooves around its perimeter that mate with tenons (1.1.2). The grooves around the RC wall panel (1.2) are fitted and connected with the tenons (1.1.2) on the inner side of the UHPC edge banding (1.1). The RC wall panel (1.2) and the UHPC edge banding (1.1) remain flush.

5. A hybrid connection prefabricated composite shear wall according to claim 1, characterized in that: The upper and lower steel-concrete end columns (3) are hinged together.

6. A hybrid connection prefabricated composite shear wall according to claim 5, characterized in that: The steel-concrete composite end column (3) includes a steel-concrete composite column body (3.1), and an ear plate (3.2) is fixed to the end of the steel-concrete composite column body (3.1). The upper and lower steel-concrete composite end columns (3) are hinged together by the ear plate (3.2) and the pin (3.3).

7. A hybrid connection prefabricated composite shear wall according to claim 6, characterized in that: The axial direction of the pin (3.3) is parallel to the thickness direction of the UHPC edge-sealing shear wall panel (1).

8. A hybrid connection prefabricated composite shear wall according to claim 1, characterized in that: The spring connector (2) includes a spring (2.2), and angle steel seats (2.1) are fixed at both ends of the spring (2.2). The angle steel seats (2.1) are L-shaped, one side of the angle steel seats (2.1) is welded to the end of the spring (2.2), and the other side of the angle steel seats (2.1) is welded to the UHPC edge-sealing shear wall panel (1) or the steel pipe concrete end column (3).

9. A hybrid connection prefabricated composite shear wall according to claim 8, characterized in that: The angle steel seat (2.1) has stiffening ribs welded between its two sides.

10. A hybrid connection prefabricated composite shear wall according to claim 1, characterized in that: Multiple spring connectors (2) are symmetrically arranged along the center line of the UHPC edge-sealing shear wall panel (1), and the spring connectors (2) on each side are evenly distributed along the length direction of the steel pipe concrete end column (3).

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