A lightweight buckling-restrained energy dissipation brace

Abstract

The utility model relates to buckling restrained brace technical field discloses a kind of lightweight buckling-restrained energy dissipation brace, including outer steel pipe, the both ends of outer steel pipe are fixedly connected with sealing plate, multiple ventilation pipes are communicated between two sealing plates, multiple ventilation pipes are distributed in circle array, the outside of each sealing plate is fixedly connected with limit sleeve, each limit sleeve outside is rotatably connected with baffle, multiple ventilation holes are set on each baffle, the utility model is in the pouring cavity of outer steel pipe inside, setting multiple ventilation pipes distributed in circle array, when high temperature in summer, rotating baffle makes ventilation hole and ventilation pipe port keep consistent, when winter temperature reduces, rotating baffle makes ventilation hole and ventilation pipe port stagger and form block, to help weakening thermal expansion and cold shrinkage phenomenon brought by winter and summer extreme temperature, the influence of deformation caused to outer steel pipe and other structural members.

Description

Technical Field

[0001] This utility model relates to the field of buckling restraint support technology, and in particular to a lightweight buckling-resistance energy dissipation support. Background Technology

[0002] Buckling-restrained braces (BRBs) are a new type of bracing. They typically consist of three parts: a core steel core, an outer restraint sleeve, and an unbonded insulating material between the two. Compared to ordinary steel braces, BRBs have more stable and superior mechanical properties. They serve as both structural and energy-dissipating components, combining two functions in one, resulting in extremely high efficiency and excellent cost-effectiveness. However, existing BRBs generally lack the ability to address the structural effects of thermal expansion and contraction during periods of high summer temperatures or low winter temperatures.

[0003] For example, a buckling restraint energy dissipation brace is disclosed in Chinese utility model patent with announcement number CN209261313U. Although this solution achieves the energy dissipation function of the buckling segment by filling the sleeve with concrete and fixing it to the outside of the buckling segment, and then having a layer of unbonded material between the concrete and the outside of the buckling segment, when the buckling restraint brace is outdoors and encounters extreme high or low temperatures, the concrete filled inside the sleeve will inevitably undergo thermal expansion and contraction according to the basic principles of physics. At this time, the long-term and periodic repeated changes of the concrete may cause mechanical damage to the structural components of the buckling restraint brace, resulting in a reduced service life.

[0004] In view of this, a lightweight buckling-resistant energy dissipation brace is proposed to solve the above problems. Utility Model Content

[0005] To address the technical problem of structural damage caused by thermal expansion and contraction of buckling restraint braces, this invention provides a lightweight buckling-resistance energy dissipation brace.

[0006] This utility model is achieved using the following technical solution: a lightweight buckling-resistant energy-dissipating support, comprising an outer steel pipe, with sealing plates fixedly connected to both ends of the outer steel pipe, and multiple ventilation pipes connected between the two sealing plates, the multiple ventilation pipes being arranged in a circumferential array, a limiting sleeve fixedly connected to the outer side of each sealing plate, a baffle rotatably connected to the outer side of each limiting sleeve, multiple ventilation holes provided on each baffle, the multiple ventilation holes being arranged in a circumferential array, each ventilation hole being paired with and cooperating with one end of a ventilation pipe, a ventilation hole switching mechanism for rotating the baffle being provided on the outer side of the outer steel pipe, and a buckling support rod mechanism being provided on the inner side of the outer steel pipe.

[0007] Through the above technical solution, cold air can be injected into the concrete inside the outer steel pipe through multiple ventilation holes to adjust the heat and offset the impact of thermal expansion and contraction on the entire energy-consuming support structure.

[0008] As a further improvement to the above solution, the ventilation hole switching mechanism includes a push plate fixedly connected between two baffles on both sides. The push plate is slidably connected to the outer side of the outer steel pipe. A pull rod is fixedly connected to the outer side of the limiting sleeve on each side. One end of each pull rod is rotatably connected to a spring. The other end of each spring is rotatably connected to one side of the push plate. A limiting mechanism is provided on the baffle.

[0009] As a further improvement to the above solution, the limiting mechanism includes a sliding groove opened on each of the baffles, a locking rod slidably connected to the inner side of each sliding groove, and one end of each locking rod being fixedly connected to the outer side of the sealing plate on the same side.

[0010] As a further improvement to the above solution, the buckling support rod mechanism includes a core steel column that is simultaneously slidably connected to the inner sides of the two sealing plates. The outer side of the core steel column and the inner side of the outer steel pipe enclose a casting cavity. Multiple limiting protrusions are fixedly connected to the outer side of the core steel column, and an unbonded layer is provided on the outer side of the core steel column.

[0011] As a further improvement to the above solution, pin connecting plates are fixedly connected to both ends of the core steel column.

[0012] As a further improvement to the above solution, a lifting lug is installed on the outer side of the outer steel pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model sets up multiple circumferentially arrayed ventilation pipes in the casting cavity inside the outer steel pipe. When the temperature is high in summer, the baffle is rotated to make the ventilation holes and ventilation pipe ports aligned. When the temperature drops in winter, the baffle is rotated to make the ventilation holes and ventilation pipe ports staggered and blocked. This helps to reduce the impact of thermal expansion and contraction caused by extreme winter and summer temperatures on the deformation of the outer steel pipe and other structural components.

[0015] 2. In the pouring cavity inside the outer steel pipe of this utility model, multiple ventilation pipes are set up to reserve a certain space for the concrete, which buffers the structural damage caused by the thermal expansion and contraction of the concrete under extreme temperatures and extends the service life of the buckling restraint support. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a lightweight buckling-resistant energy-dissipating support provided by this utility model;

[0017] Figure 2 for Figure 1 Side view;

[0018] Figure 3 for Figure 1 A sectional view;

[0019] Figure 4 for Figure 1 A schematic diagram of the exploded structure;

[0020] Figure 5 This is a schematic diagram of the limiting sleeve in one embodiment of the present invention.

[0021] Explanation of key symbols:

[0022] 1. Outer steel pipe; 2. Lifting lug; 3. Core steel column; 4. Pin connecting plate; 5. Push plate; 6. Baffle; 7. Ventilation pipe; 8. Spring; 9. Slide groove; 10. Clamping rod; 11. Limiting protrusion; 12. Casting cavity; 13. Unbonded layer; 14. Limiting sleeve; 15. Sealing plate; 16. Ventilation hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example:

[0025] Please combine Figures 1-3 A lightweight buckling-resistance energy-dissipating support according to this embodiment includes an outer steel tube 1, which is circular in this embodiment.

[0026] Please combine Figure 4 As shown, sealing plates 15 are fixedly connected to both ends of the outer steel pipe 1. Three ventilation pipes 7 are connected between the two sealing plates 15. The ventilation pipes 7 are arranged in a circumferential array. A limiting sleeve 14 is fixedly connected to the outside of each sealing plate 15. A baffle 6 is rotatably connected to the outside of each limiting sleeve 14. Three ventilation holes 16 are opened on each baffle 6. The three ventilation holes 16 are arranged in a circumferential array. Each ventilation hole 16 is paired with one end of the ventilation pipe 7 and is configured to cooperate. A ventilation hole switching mechanism that makes the baffle 6 rotate is provided on the outside of the outer steel pipe 1. A buckling support rod mechanism is provided on the inside of the outer steel pipe 1.

[0027] Please combine Figure 2 As shown, the ventilation hole switching mechanism includes a push plate 5 fixedly connected between the two baffles 6 on both sides. The push plate 5 is slidably connected to the outer side of the outer steel pipe 1. The push plate 5 serves to make the baffles 6 at both ends rotate synchronously.

[0028] Please combine Figure 2As shown, a pull rod is fixedly connected to the outer side of each limiting sleeve 14, and a spring 8 is rotatably connected to one end of each pull rod. The other end of each spring 8 is rotatably connected to one side of the push plate 5. A limiting mechanism is provided on the baffle 6.

[0029] Please combine Figure 5 As shown, the limiting mechanism includes a groove 9 opened on each baffle 6, a locking rod 10 slidably connected to the inner side of each groove 9, and one end of each locking rod 10 is fixedly connected to the outer side of the sealing plate 15 on the same side.

[0030] It should be noted that when the lever 10 slides relative to the slide groove 9 and is located at one end of the slide groove 9, the ventilation hole 16 is aligned with the ventilation pipe 7;

[0031] When the lever 10 is located at the other end of the slide groove 9, the ventilation hole 16 and the ventilation pipe 7 are offset from each other, forming a blockage and seal;

[0032] Please combine Figure 4 As shown, the buckling support rod mechanism includes a core steel column 3 that is simultaneously slidably connected to the inner sides of the two sealing plates 15. It can be made of steel with different yield strengths, such as Q235, LY100, LY160, LY225, etc. It is the main force-bearing and energy-consuming unit. In addition, in this embodiment, the core steel column 3 is a hexagonal prism structure, which has stronger shear resistance compared to other shapes.

[0033] Please combine Figure 4 As shown, the outer side of the core steel column 3 and the inner side of the outer steel pipe 1 enclose a casting cavity 12, which can be filled with concrete.

[0034] Please combine Figure 4 As shown, multiple limiting protrusions 11 are fixedly connected to the outer side of the core steel column 3, and an adhesive-free layer 13 is provided on the outer side of the core steel column 3. In this embodiment, the adhesive-free layer 13 is usually composed of materials such as rubber, polyethylene, silicone, and latex.

[0035] Please combine Figure 1 As shown, pin-connecting plates 4 are fixedly connected to both ends of the core steel column 3. There are three ways to connect the buckling restraint brace, including welding, bolt connection and pin connection. In this embodiment, the pin connection method is used for quick installation.

[0036] Please combine Figure 1 As shown, a lifting lug 2 is installed on the outside of the outer steel pipe 1. The lifting lug 2 is welded to the outside of the outer steel pipe 1. The lifting lug 2 is used for supporting the hoisting. It can be cut off or retained after installation.

[0037] The implementation principle of a lightweight buckling-resistance energy dissipation brace in this embodiment is as follows: the buckling-resistance energy dissipation brace is installed on the frame requiring vibration damping by connecting plates 4 at both ends with pins. By pushing the push plate 5, the baffles 6 at both ends can be rotated, causing the locking rod 10 to slide along the inner side of the slide groove 9. When the locking rod 10 slides to one end of the slide groove 9, the spring 8 is compressed and then rebounds. The ventilation hole 16 opened on the baffle 6 is aligned and connected with one end of the ventilation pipe 7. Outside air can circulate in the pouring cavity 12 along the ventilation pipe 7 to achieve the effect of heat dissipation. The lifting lug 2 can facilitate the hoisting and installation of the buckling-resistance energy dissipation brace. When vibration occurs, under the action of the unbonded layer 13 set on the outside of the core steel column 3, the limiting protrusion 11 can slide in the concrete inside the pouring cavity 12 to dissipate energy.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A lightweight buckling-resistance energy-dissipating brace, comprising an outer steel tube (1), characterized in that, Both ends of the outer steel pipe (1) are fixedly connected to sealing plates (15), and multiple ventilation pipes (7) are connected between the two sealing plates (15). The multiple ventilation pipes (7) are arranged in a circumferential array. A limiting sleeve (14) is fixedly connected to the outside of each sealing plate (15). A baffle (6) is rotatably connected to the outside of each limiting sleeve (14). Multiple ventilation holes (16) are opened on each baffle (6). The multiple ventilation holes (16) are arranged in a circumferential array. Each ventilation hole (16) is paired with one end of the ventilation pipe (7) and is configured to cooperate. A ventilation hole switching mechanism that makes the baffle (6) rotate is provided on the outside of the outer steel pipe (1). A buckling support rod mechanism is provided on the inside of the outer steel pipe (1).

2. The lightweight buckling-resistance energy-dissipating brace as described in claim 1, characterized in that, The ventilation hole switching mechanism includes a push plate (5) fixedly connected between two baffles (6) on both sides. The push plate (5) is slidably connected to the outer side of the outer steel pipe (1). A pull rod is fixedly connected to the outer side of the limiting sleeve (14) on each side. A spring (8) is rotatably connected to one end of each pull rod. The other end of each spring (8) is rotatably connected to one side of the push plate (5). A limiting mechanism is provided on the baffle (6).

3. The lightweight buckling-resistance energy-dissipating brace as described in claim 2, characterized in that, The limiting mechanism includes a groove (9) opened on each of the baffles (6), and a locking rod (10) is slidably connected to the inner side of each groove (9). One end of each locking rod (10) is fixedly connected to the outer side of the sealing plate (15) on the same side.

4. The lightweight buckling-resistance energy-dissipating brace as described in claim 1, characterized in that, The buckling support rod mechanism includes a core steel column (3) that is simultaneously slidably connected to the inner side of the two sealing plates (15). The outer side of the core steel column (3) and the inner side of the outer steel pipe (1) enclose a casting cavity (12). Multiple limiting protrusions (11) are fixedly connected to the outer side of the core steel column (3). An unbonded layer (13) is provided on the outer side of the core steel column (3).

5. A lightweight buckling-resistance energy-dissipating brace as described in claim 4, characterized in that, The core steel column (3) is fixedly connected to pin shaft connecting plates (4) at both ends.

6. The lightweight buckling-resistance energy-dissipating brace as described in claim 1, characterized in that, The outer steel pipe (1) is equipped with a lifting lug (2) on its outer side.

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