Expansion joint structure of building external wall panel

Abstract

The invention relates to a building external wall panel expansion joint structure which comprises two building single bodies, an expansion joint located between the two building single bodies, an expansion joint external wall panel arranged opposite to the expansion joint, a sealing external wall panel arranged opposite to the two building single bodies and two installation pieces fixedly connected with the building single bodies. And the safety protection assembly is arranged between the mounting piece and the expansion joint external wall panel.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an expansion joint structure of a building exterior wall panel. Background Art

[0002] During the construction process, in order to prevent structural cracking or damage and ensure the safety and durability of the building, a building expansion joint is usually set between two building units, and an exterior wall panel is set to block the expansion joint to improve the visual impact of the expansion joint on the building body. The existing exterior wall panel expansion joint structure usually separates the standard plate exterior wall panels at the main expansion joint position with glue joints. The relative settlement of the two building units or the relative lateral displacement after an earthquake will cause the exterior wall panels to be squeezed and damaged, causing great safety hazards. Summary of the invention

[0003] In order to solve the above problems in the prior art, the present invention would be advantageous to provide an expansion joint structure of a building exterior wall panel.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a building exterior wall panel expansion joint structure, characterized in that it includes: two building units, an expansion joint located between the two building units, an expansion joint exterior wall panel arranged opposite to the expansion joint, a sealing exterior wall panel arranged opposite to the two building units, two mounting parts fixedly connected to the building units, and also includes a safety protection component arranged between the mounting parts and the expansion joint exterior wall panel.

[0005] A further technical feature of the present invention is: The safety protection component includes: a C-shaped steel member with a slide groove which is fixedly connected to the mounting piece and arranged throughout the length, a sliding bolt matching the slide groove of the C-shaped steel member, and a V-shaped steel member, wherein the V-shaped steel member includes a bottom, a waist and a shoulder, the bottom is provided with a mounting hole and is fixedly connected to the expansion joint exterior wall panel through a connecting piece, the shoulder is provided with a waist-shaped hole matching the sliding bolt, and the shoulder is fixedly connected to the sliding bolt through a double nut matching the sliding bolt.

[0006] The connecting piece comprises a fixing screw rod which is arranged on the expansion joint outer wall plate and matches the bottom mounting hole of the V-shaped steel member, and a single nut which matches the fixing screw rod.

[0007] The mounting piece is a channel steel or an I-beam.

[0008] The two sides of the expansion joint outer wall panel are in bevel contact with the sealing outer wall panel.

[0009] A water stop strip with a telescopic portion is also provided between the two building units.

[0010] The expansion joint exterior wall panels and the sealing exterior wall panels are prefabricated UHPC panels or prefabricated GRC panels or prefabricated plain concrete panels.

[0011] The beneficial effects of the present invention are: Since the present invention provides a safety protection component between the mounting piece and the expansion joint exterior wall panel, no matter the vertical displacement between the two building units is caused by building settlement or the horizontal displacement between the two building units is caused by an earthquake, the expansion joint exterior wall panel and the sealing exterior wall panel will not be affected due to the protective effect of the safety protection component, thereby greatly improving the safety performance of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The structure and further objects and advantages of the present invention will be better understood from the following description taken in conjunction with the accompanying drawings, in which like reference numerals identify like elements: Figure 1 is a structural cross-sectional view according to a specific embodiment of the present invention; Figure 2 yes Figure 1 The main view of the middle V-shaped steel member; Figure 3 yes Figure 1 Top view of the middle V-shaped steel member; Figure 4 yes Figure 1 Structural front view of the center expansion joint exterior wall panel and the sealed exterior wall panel. DETAILED DESCRIPTION

[0013] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0014] like Figures 1 to 4As shown, a building exterior wall panel expansion joint structure according to a specific embodiment of the present invention includes two building units 1, an expansion joint 2 located between the two building units 1, an expansion joint exterior wall panel 3 arranged opposite to the expansion joint 2, a sealing exterior wall panel 4 arranged opposite to the two building units, two mounting parts 5 fixedly connected to the building units 1, and also includes a safety protection component 6 arranged between the mounting parts 5 and the expansion joint exterior wall panel 3. The safety protection assembly 6 includes: a C-shaped steel member 61 with a slide groove fixedly connected to the mounting member 5, which is arranged along the height direction, one on each side of the expansion joint, a sliding bolt 62 matching the slide groove of the C-shaped steel member 61, and a V-shaped steel member 63, wherein the V-shaped steel member 63 includes a bottom 631, a waist 632 and a shoulder 633, the bottom 631 is provided with a mounting hole 634 and is fixedly connected to the expansion joint outer wall panel 3 through the connecting member 64, the shoulder 633 is provided with a waist-shaped hole 635 matching the sliding bolt 62, and the shoulder 633 is fixedly connected to the sliding bolt 62 through a double nut 65 matching the sliding bolt 62. In this embodiment, the connecting member 64 includes a fixing screw 66 matching the bottom mounting hole 634 of the V-shaped steel member 63 and a single nut 67 matching the fixing screw, which are arranged on the UHPC expansion joint outer wall panel 3. In this embodiment, the mounting member 5 is a channel steel, and the two sides of the expansion joint exterior wall panel 3 are beveled against the sealing exterior wall panel 4. A waterstop strip 7 with a telescopic portion 71 is also provided between the two building units 1. The waterstop strip 7 can effectively stop water and avoid leakage that affects the interior, and the telescopic portion 71 can effectively prevent the expansion joint from becoming larger or smaller and causing damage to the waterstop strip 7.

[0015] In practical applications, the mounting member 5 can also be set as an I-beam or other profiles; the expansion joint exterior wall panels and the sealing exterior wall panels are prefabricated exterior wall panels such as prefabricated UHPC panels, prefabricated GRC panels, or prefabricated plain concrete panels.

[0016] In the present invention, the sealing exterior wall panel 4 is hung on the main steel keel fixedly connected to the building unit, the expansion joint exterior wall panel 3 is hung on the independent steel keel fixedly connected to the building unit, and the safety protection component 6 at the expansion joint position is an independent system. When the two building units sink, the expansion joint 2 position will undergo a relative displacement in the vertical direction, and one end of the sliding bolt 62 in the slide groove of the steel member 61 will produce a corresponding displacement along the slide groove, and at the same time, the end of the sliding bolt 62 connected to the V-shaped steel member 63 will produce a slight sliding along the waist-shaped long hole 635 on the shoulder 633 of the V-shaped steel member 63 to effectively offset the impact of the building settlement; when an earthquake occurs, three situations may occur, situation 1: the earthquake causes a horizontal displacement with an increased relative distance between the two building units 1, and the sliding bolt 62 and the double nut 65 will slide along the waist-shaped long hole 635 on the shoulder 633 of the V-shaped steel member 63 until it reaches the outermost end of the waist-shaped long hole 635. At this time, if the expansion joint 2 continues to increase the distance, while the V-shaped steel member 63 is deformed When the expansion joint 2 is pulled, the outer wall panel 3 is moved inwardly of the wall surface, and the total adjustment margin is 220mm; Case 2: The earthquake causes a misalignment displacement in the in-and-out direction between the two building units. The sliding bolt 62 and the double nut 65 will slide along the waist-shaped long hole 635 on the shoulder 633 of the V-shaped steel member 63 until it reaches the outermost end of the waist-shaped long hole 635. At this time, if the expansion joint 2 continues to increase the distance in the in-and-out direction, the outer wall panel 3 is pulled to move accordingly while the V-shaped steel member 63 is deformed ... 3: The earthquake causes the horizontal distance between the two building units to decrease or even completely close together. The sliding bolt 62 and the double nut 65 will slide along the waist-shaped long hole 635 on the shoulder 633 of the V-shaped steel member 63 until reaching the innermost end of the waist-shaped long hole 635. At this time, if the expansion joint 2 continues to reduce the relative horizontal distance, the expansion joint outer wall panel 3 will be pushed outward while the V-shaped steel member 63 is deformed until the two building units 1 are completely close together, and the expansion joint outer wall panel 3 and the sealing outer wall panel 4 will not be squeezed.

[0017] In summary, any relative horizontal displacement of the building unit 1 due to its own settlement or earthquake can be absorbed by the safety protection component 6, and the expansion joint exterior wall panel 3 and the sealing exterior wall panel 4 can be fully protected, which greatly improves the safety performance of the building.

[0018] The technical content and technical features of the present invention have been disclosed above, but it is understood that under the creative ideas of the present invention, those skilled in the art can make various changes and improvements to the above structure, including the combination of technical features disclosed or claimed separately here, and other combinations that obviously include these features. These variations and / or combinations all fall within the technical field involved in the present invention and fall within the protection scope of the claims of the present invention.

Claims

1. A building exterior wall panel expansion joint structure, characterized in that include: Two building units, an expansion joint between the two building units, an expansion joint exterior wall panel arranged opposite to the expansion joint, a sealing exterior wall panel arranged opposite to the two building units, two mounting parts fixedly connected to the building units, and also includes a safety protection component arranged between the mounting parts and the expansion joint exterior wall panel.

2. The expansion joint structure of the building exterior wall panel according to claim 1, characterized in that The safety protection component includes: a C-shaped steel member with a slide groove which is fixedly connected to the mounting piece and arranged throughout the length, a sliding bolt matching the slide groove of the C-shaped steel member, and a V-shaped steel member, wherein the V-shaped steel member includes a bottom, a waist and a shoulder, the bottom is provided with a mounting hole and is fixedly connected to the expansion joint exterior wall panel through a connecting piece, the shoulder is provided with a waist-shaped hole matching the sliding bolt, and the shoulder is fixedly connected to the sliding bolt through a double nut matching the sliding bolt.

3. The expansion joint structure of the building exterior wall panel according to claim 2, characterized in that The connecting piece comprises a fixing screw rod which is arranged on the expansion joint outer wall plate and matches the mounting hole at the bottom of the V-shaped steel member, and a nut which matches the fixing screw rod.

4. The expansion joint structure of the building exterior wall panel according to claim 1, characterized in that The mounting piece is a channel steel or an I-beam.

5. The expansion joint structure of the building exterior wall panel according to claim 1, characterized in that The two sides of the expansion joint outer wall panel are in bevel contact with the sealing outer wall panel.

6. The expansion joint structure of the building exterior wall panel according to claim 1 or claim 2 or claim 3 or claim 4 or claim 5, characterized in that: A water stop strip with a telescopic portion is also provided between the two building units.

7. The expansion joint structure of the building exterior wall panel according to claim 6, characterized in that: The expansion joint exterior wall panels and the sealing exterior wall panels are prefabricated UHPC panels or prefabricated GRC panels or prefabricated plain concrete panels.

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