Cold-formed steel composite wall structure with shape memory alloy energy dissipation support

Abstract

The utility model relates to the technical field of building construction, in particular to a cold-formed section steel composite wall structure with shape memory alloy energy dissipation supports, which is characterized in that support frames are arranged at two ends of a connecting beam, the connecting beam and the support frames form a closed space, a panel is arranged in the closed space, and the shape memory alloy energy dissipation supports are arranged in the closed space. The side edge of the panel is provided with an energy dissipation support, the energy dissipation support is arranged in the closed space, and the end of the energy dissipation support is fixedly connected with the connecting beam and the bearing frame through anti-pulling pieces. According to the supporting frame, the stability and the connection reliability of the whole wall body are enhanced through the multiple connection mode of the reinforcing profile steel and the side edge stand columns, meanwhile, the middle stand columns are tightly fixed to the connecting beams through the middle reinforcing connecting pieces, and stable connection of the main body structure of the wall body is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a cold-bent steel composite wall structure with shape memory alloy energy-absorbing supports. Background Art

[0002] In recent years, with the increasing requirements of the construction industry for building quality, construction speed and environmental sustainability, steel structures have been widely used. As an important form of steel structure, cold-formed steel structure has technical advantages such as cold-formed forming, light weight and high strength, variable cross-section performance, assembly, reusability and high construction efficiency. Therefore, it has received more and more attention and application, and has become a steel structure with broad application prospects. Especially in the load-bearing system of medium and low-rise commercial and residential buildings, compared with traditional brick-concrete structures, the use of cold-formed steel structure can significantly obtain multiple advantages such as strong durability, convenient construction, green environmental protection, and high space utilization.

[0003] Wall support is a vital component of building structure, which has multiple functions such as structural load-bearing, resistance to lateral force, space division and isolation. Structures with wall support usually have better shock absorption effect, which can significantly reduce the internal force of the frame. Reasonable arrangement of wall support can better meet the functional requirements of building structure and further optimize its performance.

[0004] At present, most of the existing cold-formed steel wall supports are assembled from multiple parts, with complex structures and high requirements for construction technology. Once a part of the wall support is damaged, the repair and replacement process is also very cumbersome. In addition, under complex and changing load conditions, the traditional support form has insufficient ability to adjust and recover on its own, resulting in a significant increase in the risk of failure and greatly limiting its applicability. Utility Model Content

[0005] The utility model aims to provide a cold-bent steel composite wall structure with shape memory alloy energy dissipation support to solve the problems raised in the above-mentioned background technology.

[0006] The technical solution of the utility model is: a cold-bent steel composite wall structure with shape memory alloy energy-absorbing supports, comprising a connecting beam and a support frame, wherein the support frame is arranged at both ends of the connecting beam, and the connecting beam and the support frame form a closed space, a panel is arranged inside the closed space, an energy-absorbing support is arranged on the side of the panel, the energy-absorbing support is arranged inside the closed space, and the end of the energy-absorbing support is fixedly connected to the connecting beam and the support frame through an anti-pullout member.

[0007] Furthermore, the support frame includes reinforcing steel and side columns, the reinforcing steel is fixed to the inward side of the side column, and the ends of the reinforcing steel and the side column are fixedly connected to the ends of the connecting beam through end reinforcing connectors.

[0008] Furthermore, the end reinforcement connector includes a mountain-shaped connector, the ends of the reinforcement steel and the side columns are arranged inside the mountain-shaped connector, and the ends of the reinforcement steel and the side columns are welded and fixed to the inside of the mountain-shaped connector, and at the same time, the ends of the reinforcement steel and the side columns are fixedly connected to the side of the mountain-shaped connector by a second connecting bolt and a second fixing nut.

[0009] Furthermore, a plurality of first connection holes are evenly arranged on the side columns, and the side columns and the panel are fixedly connected by fixing bolts passing through the first connection holes. At the same time, a middle column is arranged on the middle side of the panel, and the end of the middle column is fixedly connected to the middle of the connecting beam through a middle reinforcing connector.

[0010] Furthermore, the central reinforcement connector includes a U-shaped connector, the end of the central column is arranged inside the U-shaped connector, and the end of the central column and the inside of the U-shaped connector are welded and fixed, and the end of the central column and the side of the U-shaped connector are fixedly connected by a first connecting bolt and a first fixing nut.

[0011] Furthermore, a central through hole is opened in the middle of the central column, an energy-absorbing support is sleeved inside the central through hole, and the energy-absorbing support is arranged in an X-shaped cross on the side of the panel.

[0012] Furthermore, the end of the middle column is fixedly connected to the end of the energy dissipation support through an anti-pullout member, and the energy dissipation support is arranged in an "eight" shape on the side of the panel.

[0013] Furthermore, the energy dissipation support includes a plurality of first steel rods, and two adjacent first steel rods are fixedly connected by a connecting sleeve. At the same time, connecting rings are provided at the ends of the plurality of connected first steel rods, and the connecting rings are fixedly connected to the anti-pull-out parts. Shape memory alloy rods are provided inside the plurality of connected first steel rods via connecting sleeves.

[0014] Furthermore, the anti-pull-out member includes a second flange and a first flange, the second flange is arranged at the upper end of the side of the first flange, and the second flange and the first flange are fixedly connected by a diagonal brace flange assembly, and a plurality of second connecting holes are evenly arranged on the second flange, the second flange and the side of the middle column and the side of the supporting frame are fixedly connected by fixing bolts passing through the second connecting holes, the first flange is provided with a third connecting hole, and the first flange and the connecting beam are fixedly connected by fixing bolts passing through the third connecting hole.

[0015] Furthermore, the diagonal brace flange assembly includes a first diagonal brace flange and a second diagonal brace flange, the first diagonal brace flange is arranged on the side of the second diagonal brace flange, and the first diagonal brace flange and the second diagonal brace flange are snap-connected by a slide groove, and at the same time, the side of the first diagonal brace flange and the side of the second flange are welded and fixed, the lower end of the second diagonal brace flange and the side of the first flange are welded and fixed, and the two relatively arranged second diagonal brace flanges are fixedly connected by a pivot, and a second steel rod is sleeved on the middle part of the pivot, and the second steel rod is fixedly connected to the connecting ring.

[0016] The utility model provides a cold-bent steel composite wall structure with shape memory alloy energy dissipation support through improvement, which has the following improvements and advantages compared with the prior art:

[0017] Firstly, the support frame of the utility model enhances the stability and connection reliability of the whole wall through multiple connection modes of reinforced steel and side columns. Meanwhile, the middle column is tightly fixed to the connecting beam through the middle reinforcement connector, which further ensures the stable connection of the main structure of the wall. The energy dissipation support arranged in the middle can be designed as an X-shaped or figure-eight layout, so that it can be flexibly configured according to actual needs, thereby adapting to different wall loads and deformation modes, which helps to improve the adaptability and economy of the structure.

[0018] Second, the utility model uses the shape memory alloy rod as an energy dissipation element, which can absorb a large amount of energy when the wall is deformed by force, reduce the vibration response of the main structure, and thus greatly improve the seismic performance and safety of the structure. At the same time, the first steel rod and the shape memory alloy rod are effectively combined through the connecting sleeve, which is not only convenient for installation and maintenance, but also conducive to mass production and application;

[0019] Thirdly, the utility model realizes a firm connection between the energy-absorbing support and the wall structure through the linkage cooperation of the first flange, the second flange and the diagonal bracing flange assembly, and effectively prevents the energy-absorbing support from falling out under stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 It is a schematic diagram of the X-shaped structure of the utility model cold-bent steel composite wall structure;

[0022] Figure 2 It is a schematic diagram of the figure eight structure of the cold-bent steel composite wall structure of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the support frame of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the middle reinforcement connector of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the end reinforcement connector of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the anti-pullout member of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the energy-consuming support of the utility model;

[0028] Description of reference numerals:

[0029] 1. Connecting beam; 2. Middle column; 3. Energy dissipation support; 301. Connecting sleeve; 302. First steel rod; 303. Shape memory alloy rod; 304. Connecting ring; 4. Support frame; 401. Reinforced steel; 402. Side column; 403. First connecting hole; 5. Pull-out member; 501. First diagonal brace flange; 502. Second steel rod; 503. Slide groove; 504. Second flange; 505. Second connecting hole; 506. Second diagonal brace flange; 507. Pivot; 508. Third connecting hole; 509. First flange; 6. Middle reinforcement connector; 601. U-shaped connector; 602. First connecting bolt; 603. First fixing nut; 7. End reinforcement connector; 701. Mountain-shaped connector; 702. Second connecting bolt; 703. Second fixing nut. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0033] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0034] refer to Figure 1-Figure 7 , this embodiment provides a cold-formed steel composite wall structure with a shape memory alloy energy-absorbing support, the cold-formed steel composite wall structure includes a connecting beam 1, an energy-absorbing support 3 and a support frame 4. The support frame 4 is arranged at both ends of the connecting beam 1, and the connecting beam 1 and the support frame 4 form a closed space. Specifically, a panel is arranged inside the closed space, and a middle column 2 and an energy-absorbing support 3 are arranged on the side of the panel, wherein the middle column 2 and the energy-absorbing support 3 are both arranged inside the closed space, and the end of the energy-absorbing support 3 and the connecting beam 1 and the support frame 4 are fixedly connected by an anti-pullout member 5. Further, a middle through hole is opened in the middle of the middle column 2, and an energy-absorbing support 3 is sleeved inside the middle through hole, wherein the energy-absorbing support 3 can be arranged in an X-shaped cross on the side of the panel. Similarly, the end of the middle column 2 is fixedly connected to the end of the energy-absorbing support 3 by an anti-pullout member 5, and the energy-absorbing support 3 can be arranged on the side of the panel in an X-shaped cross.

[0035] In this embodiment, the support frame 4 includes a reinforcement steel 401 and a side column 402, wherein the reinforcement steel 401 is fixed to the inner side of the side column 402, and the ends of the reinforcement steel 401 and the side column 402 are fixedly connected to the end of the connecting beam 1 through the end reinforcement connector 7. Specifically, the end reinforcement connector 7 includes a mountain-shaped connector 701, and the ends of the reinforcement steel 401 and the side column 402 are arranged inside the mountain-shaped connector 701, and the ends of the reinforcement steel 401 and the side column 402 are welded and fixed to the inside of the mountain-shaped connector 701, and the ends of the reinforcement steel 401 and the side column 402 are fixedly connected to the side of the mountain-shaped connector 701 through the second connection bolt 702 and the second fixing nut 703. Furthermore, a plurality of first connection holes 403 are evenly provided on the side column 402, and the side column 402 and the panel are fixedly connected by fixing bolts passing through the first connection holes 403, and a middle column 2 is provided on the middle side of the panel, and the end of the middle column 2 is fixedly connected to the middle of the connecting beam 1 through a middle reinforcement connector 6. Specifically, the middle reinforcement connector 6 includes a U-shaped connector 601, and the end of the middle column 2 is provided inside the U-shaped connector 601, and the end of the middle column 2 is welded and fixed to the inside of the U-shaped connector 601, and the end of the middle column 2 and the side of the U-shaped connector 601 are fixedly connected by a first connection bolt 602 and a first fixing nut 603.

[0036] That is, the reinforcement steel 401 is fixed to the inner side of the side column 402, and it is ensured that they are tightly fixed by welding. Then, the ends of the reinforcement steel 401 and the side column 402 are inserted into the interior of the mountain-shaped connector 701, and are welded and fixed to ensure a stable connection of the structure. After the welding is completed, the ends of the reinforcement steel 401 and the side column 402 are further fixed to the side of the mountain-shaped connector 701 by the second connecting bolt 702 and the second fixing nut 703 to enhance the reliability and stability of the end connection. Then, the side column 402 is connected to the panel by fixing bolts, and it is ensured that each fixing bolt is tightened through its corresponding first connecting hole 403. Then the middle column 2 is installed, that is, the end of the middle column 2 is first placed inside the U-shaped connector 601 and fixed by welding, and then the end of the middle column 2 is fixed to the side of the U-shaped connector 601 by the first connecting bolt 602 and the first fixing nut 603 to ensure that the middle column 2 is tightly connected to the middle of the connecting beam 1. Then the energy dissipation support 3 is installed on the middle column 2, and it is correctly connected to the connecting beam 1 and the support frame 4 through the anti-pullout member 5 to form the final cold-formed steel composite wall structure with shape memory alloy energy dissipation support.

[0037] In this embodiment, the energy dissipation support 3 includes a plurality of first steel rods 302 and a shape memory alloy rod 303. Two adjacent first steel rods 302 are fixedly connected by a connecting sleeve 301, and a connecting ring 304 is provided at the end of the plurality of connected first steel rods 302, and the connecting ring 304 is fixedly connected to the anti-pullout member 5, and the interior of the plurality of connected first steel rods 302 is connected to the shape memory alloy rod 303 by the connecting sleeve 301. Further, the anti-pullout member 5 includes a second flange 504 and a first flange 509. The second flange 504 is arranged at the upper end of the side of the first flange 509, and the second flange 504 and the first flange 509 are fixedly connected by a diagonal bracing flange assembly. At the same time, a plurality of second connecting holes 505 are evenly opened on the second flange 504, and the second flange 504 and the side of the middle column 2 and the side of the supporting frame 4 are fixedly connected by fixing bolts passing through the second connecting holes 505. A third connecting hole 508 is opened on the first flange 509, and the first flange 509 and the connecting beam 1 are fixedly connected by fixing bolts passing through the third connecting holes 508. Specifically, the diagonal brace flange assembly includes a first diagonal brace flange 501 and a second diagonal brace flange 506. The first diagonal brace flange 501 is arranged on the side of the second diagonal brace flange 506, and the first diagonal brace flange 501 and the second diagonal brace flange 506 are snap-connected by a slide groove 503. At the same time, the side of the first diagonal brace flange 501 and the side of the second flange 504 are welded and fixed, the lower end of the second diagonal brace flange 506 and the side of the first flange 509 are welded and fixed, and the two oppositely arranged second diagonal brace flanges 506 are fixedly connected by a pivot 507. The middle part of the pivot 507 is sleeved with a second steel rod 502, and the second steel rod 502 is fixedly connected to the connecting ring 304.

[0038] That is to say, multiple first steel rods 302 are connected in sequence through connecting sleeves 301 to form a staggered steel rod frame, and connecting rings 304 are installed at both ends of the steel rod frame to ensure that the connecting rings 304 are firmly connected to the ends of the first steel rods 302, and the shape memory alloy rods 303 are placed in the multiple first steel rods 302 through the connecting sleeves 301 to form a core energy-absorbing element and ensure that the shape memory alloy rods 303 can function under stress.

[0039] When making the anti-pullout member 5, the second flange 504 and the first flange 509 are fixedly connected through the diagonal brace flange assembly. The first diagonal brace flange 501 and the second diagonal brace flange 506 in the diagonal brace flange assembly are snap-connected through the slide groove 503, so as to achieve flexible rotation and stable support. Specifically, the first diagonal brace flange 501 is welded to the side of the second flange 504, and the lower end of the second diagonal brace flange 506 is welded and fixed to the side of the first flange 509, so as to ensure the overall strength and stability of the anti-pullout member 5. At the same time, the two second diagonal brace flanges 506 arranged relatively to each other are connected by a pivot 507, and a second steel rod 502 is sleeved in the middle of the pivot 507. The second steel rod 502 is used to be fixedly connected with the connecting ring 304 of the energy dissipation support 3, so as to ensure that when the wall is subjected to force, the energy dissipation support 3 can effectively transmit and consume energy, thereby improving the seismic performance of the structure.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold-formed steel composite wall structure with shape memory alloy energy dissipation support, characterized in that: The invention comprises a connecting beam (1) and a supporting frame (4), wherein the supporting frame (4) is arranged at both ends of the connecting beam (1), and the connecting beam (1) and the supporting frame (4) form a closed space, wherein a panel is arranged inside the closed space, and an energy-absorbing support (3) is arranged on the side of the panel, and the energy-absorbing support (3) is arranged inside the closed space, and the end of the energy-absorbing support (3) is fixedly connected to the connecting beam (1) and the supporting frame (4) through an anti-pullout member (5).

2. The cold-formed steel composite wall structure with shape memory alloy energy dissipation support according to claim 1, characterized in that: The support frame (4) comprises a reinforcement steel (401) and a side column (402), wherein the reinforcement steel (401) is fixed to the inward side of the side column (402), and the ends of the reinforcement steel (401) and the side column (402) are fixedly connected to the end of the connecting beam (1) via an end reinforcement connector (7).

3. The cold-formed steel composite wall structure with shape memory alloy energy dissipation support according to claim 2, characterized in that: The end reinforcement connector (7) includes a mountain-shaped connector (701), the ends of the reinforcement steel (401) and the side column (402) are both arranged inside the mountain-shaped connector (701), and the ends of the reinforcement steel (401) and the side column (402) are welded and fixed to the inside of the mountain-shaped connector (701), and the ends of the reinforcement steel (401) and the side column (402) are fixedly connected to the side of the mountain-shaped connector (701) by a second connection bolt (702) and a second fixing nut (703).

4. A cold-formed steel composite wall structure with shape memory alloy energy dissipation support according to claim 2 or 3, characterized in that: A plurality of first connection holes (403) are evenly arranged on the side columns (402), and the side columns (402) and the panel are fixedly connected by fixing bolts passing through the first connection holes (403). At the same time, a middle column (2) is arranged on the middle side of the panel, and the end of the middle column (2) is fixedly connected to the middle of the connecting beam (1) through a middle reinforcing connector (6).

5. The cold-formed steel composite wall structure with shape memory alloy energy dissipation support according to claim 4, characterized in that: The middle reinforcement connector (6) includes a U-shaped connector (601), the end of the middle column (2) is arranged inside the U-shaped connector (601), and the end of the middle column (2) and the inside of the U-shaped connector (601) are welded and fixed, and the end of the middle column (2) and the side of the U-shaped connector (601) are fixedly connected by a first connecting bolt (602) and a first fixing nut (603).

6. The cold-formed steel composite wall structure with shape memory alloy energy dissipation support according to claim 4, characterized in that: A central through hole is opened in the middle of the central column (2), and an energy-absorbing support (3) is sleeved inside the central through hole. The energy-absorbing support (3) is arranged in an X-shaped cross on the side of the panel.

7. The cold-formed steel composite wall structure with shape memory alloy energy dissipation support according to claim 4, characterized in that: The end of the middle column (2) is fixedly connected to the end of the energy dissipation support (3) via an anti-pullout member (5), and the energy dissipation support (3) is arranged in an "eight" shape on the side of the panel.

8. The cold-formed steel composite wall structure with shape memory alloy energy dissipation support according to claim 1, characterized in that: The energy dissipation support (3) comprises a plurality of first steel rods (302), two adjacent first steel rods (302) are fixedly connected via a connecting sleeve (301), and a connecting ring (304) is provided at the end of the plurality of connected first steel rods (302), and the connecting ring (304) is fixedly connected to the anti-pullout member (5), and a shape memory alloy rod (303) is provided inside the plurality of connected first steel rods (302) via a connecting sleeve (301).

9. A cold-formed steel composite wall structure with shape memory alloy energy dissipation support according to claim 1 or 8, characterized in that: The anti-pullout member (5) comprises a second flange (504) and a first flange (509); the second flange (504) is arranged at the upper end of the side of the first flange (509); the second flange (504) and the first flange (509) are fixedly connected via a diagonal bracing flange assembly; a plurality of second connection holes (505) are evenly arranged on the second flange (504); the second flange (504) and the side of the middle column (2) and the side of the supporting frame (4) are fixedly connected via fixing bolts passing through the second connection holes (505); the first flange (509) is provided with a third connection hole (508); the first flange (509) and the connecting beam (1) are fixedly connected via fixing bolts passing through the third connection hole (508).

10. The cold-formed steel composite wall structure with shape memory alloy energy dissipation support according to claim 9, characterized in that: The diagonal brace flange assembly includes a first diagonal brace flange (501) and a second diagonal brace flange (506), wherein the first diagonal brace flange (501) is arranged on the side of the second diagonal brace flange (506), and the first diagonal brace flange (501) and the second diagonal brace flange (506) are snap-connected via a slide groove (503), and the side of the first diagonal brace flange (501) and the side of the second flange (504) are welded and fixed, and the lower end of the second diagonal brace flange (506) and the side of the first flange (509) are welded and fixed, and the two second diagonal brace flanges (506) arranged opposite to each other are fixedly connected via a pivot (507), and a second steel rod (502) is sleeved on the middle part of the pivot (507), and the second steel rod (502) is fixedly connected to the connecting ring (304).

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