Fiber resin restrained shear thickening fluid energy dissipation prefabricated wall

Abstract

The utility model relates to a fiber resin restrained shear thickening fluid energy dissipation prefabricated wall, and belongs to the technical field of structural engineering. Comprising a fiber resin restraint layer, core concrete, a multi-dimensional anti-collision device, a rotating space groove, shear thickening fluid, a rotating energy dissipater, a profile steel rotating shaft and a fiber resin restraint light buckling-restrained brace. The utility model relates to a fiber resin constrained shear thickening fluid energy consumption prefabricated wall, which is integrally prefabricated by multi-dimensional anti-impact devices on two sides of the bottom of a wall body, core concrete in the middle of the wall body and a rotary energy consumption device on the top of the wall body. The fiber resin constrained shear thickening fluid energy consumption prefabricated wall has the beneficial effects and the advantages that the arrangement of the energy consumption prefabricated wall can be determined according to the requirements of structural rigidity and strength; steel bars do not need to be arranged in the energy consumption prefabricated wall, low-carbon and energy-saving field assembly type dry connection is achieved, wet operation is reduced, and vibration energy generated when rare earthquakes or wind loads occur is effectively weakened by adopting the combination of the energy consumption prefabricated wall and the light buckling-restrained brace.

Description

Technical Field

[0001] The utility model belongs to the technical field of structural engineering, in particular to a fiber resin restrained shear thickening liquid energy-consuming prefabricated wall. Background Art

[0002] Earthquakes and typhoons bring huge economic losses and damage to life and property to human society. Reinforced concrete shear wall structures are commonly used lateral force components in high-rise buildings or irregular structures, and play a vital role in the overall performance of the structure. Based on the development status of my country's construction industry in recent years, reinforced concrete shear wall structures mainly have the following problems:

[0003] Reinforced concrete shear wall structures require a large amount of raw materials such as steel bars, cement, sand and gravel, which can easily cause damage to the natural ecology.

[0004] During the design phase, when analyzing the elastic-plastic deformation under rare earthquakes or wind loads, the shear wall has a large in-plane stiffness and is distributed to most of the internal forces of the overall structure, thereby increasing the wall section and reducing economic benefits. During the construction phase, a large amount of wet work is required, making the construction difficult and taking a long time.

[0005] Existing energy dissipation and shock absorption technologies install dampers in the structure or use self-resetting shear walls, but the deformation of reinforced concrete is small and the effect of dampers is limited; self-resetting shear walls require prestressed tendons for on-site tensioning, which is difficult to construct, and the wall is restricted by the floor slab and cannot achieve large-scale swing to dissipate energy.

[0006] Based on the existing situation, optimizing the shear wall structure's resistance performance, economic benefits, and ease of on-site operation is of practical value and significance. Utility Model Content

[0007] In order to solve the problem that the existing self-resetting shear wall has limited function, great construction difficulty, and cannot achieve large-scale swinging for energy consumption, the utility model provides a fiber resin constrained shear thickening liquid energy-consuming prefabricated wall, mainly to develop an energy-consuming prefabricated wall with good energy dissipation effect, which can effectively improve the lateral force resistance performance of the overall structure and is easy to construct and install. The technical solution adopted by the utility model is as follows:

[0008] A fiber resin constrained shear thickening liquid energy dissipation prefabricated wall, comprising a fiber resin constrained layer, core concrete, a multi-dimensional anti-impact device, a rotating space slot, a shear thickening liquid, a rotating energy dissipator, a steel rotating shaft, and a fiber resin constrained lightweight buckling-resistant support;

[0009] A fiber resin constrained shear thickening liquid energy-absorbing prefabricated wall is prefabricated integrally by multidimensional anti-impact devices on both sides of the bottom of the wall, core concrete in the middle of the wall, and a rotation energy absorber at the top of the wall. The core concrete is recycled concrete, and a fiber resin constrained layer is wound on its surface. A rotation space groove is opened below the core concrete, and the rotation space groove is located between the multidimensional anti-impact devices. A steel rotating shaft is embedded above each floor slab. The rotation space groove in the fiber resin constrained shear thickening liquid energy-absorbing prefabricated wall is plugged into the steel rotating shaft, and shear thickening liquid is injected into the gap between the rotation space groove and the steel rotating shaft. A distance of 300mm to 500mm is left between the fiber resin constrained shear thickening liquid energy-absorbing prefabricated wall and the cast-in-place shear wall, and a fiber resin constrained lightweight anti-buckling support is obliquely arranged at the corner where the cast-in-place shear wall and the floor slab meet.

[0010] Furthermore, no steel bars are required to be arranged inside the energy-absorbing prefabricated wall.

[0011] Furthermore, in the multi-dimensional anti-impact device, the arc ball joint is connected to the upper fixed plate, one end of the rotating ball is installed in the arc ball joint, and the other end is connected to the cylindrical slide, one end of the telescopic spring arm is inserted into the cylindrical slide and connected to the rotating ball, and the other end touches the lower fixed plate, the annular viscoelastic sleeve surrounds the outer ring of the cylindrical slide and is connected to the lower fixed plate by a support arm, and the multi-dimensional anti-impact device is fixed in the core concrete by the fixed threaded steel on the back of the upper fixed plate.

[0012] Furthermore, both ends of the rotating shaft in the rotational energy absorber are installed on the supporting side wings, the rotating plate can rotate around the rotating shaft, the lower side of the rotating plate is connected to a force transmission spring, the end of the force transmission spring is equipped with a vibration ball, the vibration ball is located in the shear thickening liquid energy absorption cavity, one end of the pull-out resistant threaded steel is welded to the lower side of the base plate, and the other end is buried in the core concrete.

[0013] Furthermore, shear-resistant threaded steel is welded on the lower side of the main steel plate in the steel section rotating shaft, and the rotating shaft steel plate is welded on the upper side. The shear-resistant threaded steel is embedded in the floor slab concrete. The top of the rotating shaft steel plate is arc-shaped. The height of the steel section rotating shaft is 1 / 8 to 1 / 4 of the height of the energy-consuming prefabricated wall, and the width is 1 / 6 to 1 / 4 of the width of the energy-consuming prefabricated wall.

[0014] Furthermore, the fiber resin constrained lightweight buckling-resisting brace is composed of a support frame, a steel support core, buckling-resisting lightweight concrete, and a fiber resin constraining cylinder.

[0015] Beneficial effects of the utility model:

[0016] (1) During the design phase, the layout of the energy-absorbing prefabricated wall can be determined based on the requirements of structural stiffness and strength. The energy dissipation effect of the energy-absorbing prefabricated wall can reduce the distributed moment of the shear wall under rare earthquakes or wind loads, thereby reducing the cross-section of the structural components to increase economic benefits. The energy-absorbing prefabricated wall does not require steel bars, and a large amount of environmentally friendly materials are used, which is low-carbon and energy-saving.

[0017] (2) During the construction phase, energy-consuming prefabricated walls are manufactured in the factory and assembled on site using dry connections to reduce wet work and facilitate installation.

[0018] (3) The combination of energy-absorbing prefabricated walls and lightweight anti-buckling braces can effectively reduce the vibration energy during rare earthquakes or wind loads.

[0019] (4) The rotating ball of the multi-dimensional anti-impact device can rotate in the arc ball joint to pull the support arm and the telescopic spring arm to slide in the horizontal plane, thereby reducing the horizontal vibration damage at the root of the wall; at the same time, the telescopic spring arm can produce vertical deformation, and the annular viscoelastic sleeve can slide along the cylindrical slide, driving the support arm to produce vertical displacement, thereby reducing the vertical collision damage at the root of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of a fiber resin constrained shear thickening liquid energy-consuming prefabricated wall structure.

[0021] Figure 2 It is a schematic diagram of the front view of the steel rotating shaft of the utility model.

[0022] Figure 3 It is a schematic diagram of the side view of the steel rotating shaft of the utility model.

[0023] Figure 4 It is a schematic diagram of the front view of the rotating energy absorber of the utility model.

[0024] Figure 5 for Figure 4 1-1 is a schematic cross-sectional view of the embodiment of the present invention.

[0025] Figure 6 It is a schematic diagram of the front view of the fiber resin constrained lightweight buckling-resisting brace of the utility model.

[0026] Figure 7 It is a schematic diagram of the front view of the multi-dimensional anti-collision device of the utility model.

[0027] In the figure, 1 is a fiber resin constrained layer; 2 is a core concrete; 3 is a multi-dimensional anti-impact device; 4 is a rotating space groove; 5 is a shear thickening liquid; 6 is a rotating energy absorber; 7 is a steel rotating shaft; 8 is a fiber resin constrained lightweight anti-buckling support; 31 is an upper fixed plate; 32 is a lower fixed plate; 33 is a rotating ball; 34 is a cylindrical slide; 35 is an annular viscoelastic sliding sleeve; 36 is a support arm; 37 is a telescopic spring arm; 38 is a curved ball joint; 39 is a fixed threaded steel; 61 is a rotating plate; 62 is a rotating shaft; 63 is a supporting wing; 64 is a force transmission spring; 65 is a vibration ball; 66 is a shear thickening liquid energy absorption chamber; 67 is a bottom plate; 68 is an anti-pullout threaded steel; 71 is a main steel plate; 72 is a rotating shaft steel plate; 73 is a shear-resistant threaded steel; 81 is a support frame; 82 is a steel support core; 83 is anti-buckling lightweight concrete; 84 is a fiber resin constrained cylinder. DETAILED DESCRIPTION

[0028] In order to further illustrate the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and embodiments, but they should not be construed as limiting the protection scope of the present invention. Example

[0029] like Figure 1-Figure 7 As shown, the utility model is a fiber resin constrained shear thickening liquid energy dissipation prefabricated wall, comprising a fiber resin constrained layer 1, a core concrete 2, a multi-dimensional anti-impact device 3, a rotating space groove 4, a shear thickening liquid 5, a rotating energy dissipator 6, a steel rotating shaft 7, and a fiber resin constrained lightweight buckling-resistant support 8;

[0030] A fiber resin constrained shear thickening liquid energy-absorbing prefabricated wall is prefabricated integrally by multidimensional anti-impact devices 3 on both sides of the bottom of the wall, core concrete 2 in the middle of the wall, and a rotation energy absorber 6 at the top of the wall. The core concrete 2 is recycled concrete, and a fiber resin constrained layer 1 is wrapped around its surface. A rotation space groove 4 is opened below the core concrete 2, and the rotation space groove 4 is located between the multidimensional anti-impact devices 3. A steel rotating shaft 7 is embedded above each floor slab. The rotation space groove 4 in the fiber resin constrained shear thickening liquid energy-absorbing prefabricated wall is plugged into the steel rotating shaft 7, and the shear thickening liquid 5 is injected into the gap between the rotation space groove 4 and the steel rotating shaft 7. A distance of 300mm to 500mm is left between the fiber resin constrained shear thickening liquid energy-absorbing prefabricated wall and the cast-in-place shear wall, and a fiber resin constrained lightweight anti-buckling support 8 is obliquely arranged at the corner where the cast-in-place shear wall and the floor slab meet.

[0031] The installation steps of a fiber resin constrained shear thickening fluid energy dissipation prefabricated wall are as follows:

[0032] S1: A fiber resin constrained shear thickening fluid energy dissipation prefabricated wall is used on both sides of openings in shear wall structures, frame-shear wall structures, tube-in-tube structures and frame-core tube structures;

[0033] S2: The steel rotating shaft 7 is embedded in the formwork and fixed in position when tying the reinforcement of the lower floor slab;

[0034] S3: After pouring the lower floor slab concrete, the energy-consuming prefabricated wall is hoisted at the construction site and inserted into the steel rotating shaft 7, and the shear thickening liquid 5 is injected into the rotating space groove 4;

[0035] S4: Tie the steel bars, embed components and pour concrete for the upper floor slab;

[0036] S5: Fiber resin restrained lightweight buckling-resisting braces 8 are installed obliquely at the corners where the cast-in-place shear wall and the floor slab meet.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fiber resin constrained shear thickening liquid energy dissipation prefabricated wall, characterized in that: It comprises a fiber resin constrained layer (1), a core concrete (2), a multi-dimensional anti-impact device (3), a rotating space tank (4), a shear thickening fluid (5), a rotating energy dissipator (6), a steel rotating shaft (7), and a fiber resin constrained lightweight buckling-resistant support (8); A fiber resin constrained shear thickening liquid energy dissipation prefabricated wall is prefabricated integrally with multidimensional anti-impact devices (3) on both sides of the bottom of the wall, core concrete (2) in the middle of the wall, and a rotation energy dissipator (6) at the top of the wall. The core concrete (2) is recycled concrete, and a fiber resin constrained layer (1) is wound around its surface. A rotation space groove (4) is provided below the core concrete (2). The rotation space groove (4) is located between the multidimensional anti-impact devices (3). A steel profile rotation shaft (7) is embedded above each floor slab. The rotation space groove (4) in the fiber resin constrained shear thickening liquid energy dissipation prefabricated wall is plugged in with the steel profile rotation shaft (7). A shear thickening liquid (5) is injected into the gap between the rotation space groove (4) and the steel profile rotation shaft (7). A distance of 300 mm to 500 mm is left between the fiber resin constrained shear thickening liquid energy dissipation prefabricated wall and a cast-in-place shear wall. A fiber resin constrained lightweight buckling-resistant support (8) is obliquely provided at the corner where the cast-in-place shear wall and the floor slab meet.

2. The fiber resin constrained shear thickening liquid energy dissipation prefabricated wall according to claim 1, characterized in that: No reinforcement is required inside the energy-consuming prefabricated wall.

3. The fiber resin constrained shear thickening liquid energy dissipation prefabricated wall according to claim 1, characterized in that: In the multi-dimensional anti-impact device (3), a curved ball joint (38) is connected to the upper fixed plate (31); one end of the rotating ball (33) is installed in the curved ball joint (38) and the other end is connected to the cylindrical slideway (34); one end of the telescopic spring arm (37) is inserted into the cylindrical slideway (34) and connected to the rotating ball (33); the other end is in contact with the lower fixed plate (32); an annular viscoelastic sleeve (35) surrounds the outer ring of the cylindrical slideway (34) and is connected to the lower fixed plate (32) by a support arm (36); and the multi-dimensional anti-impact device (3) is fixed in the core concrete (2) by a fixed threaded steel bar (39) on the back of the upper fixed plate (31).

4. The fiber resin constrained shear thickening liquid energy dissipation prefabricated wall according to claim 1, characterized in that: The two ends of the rotating shaft (62) in the rotating energy absorber (6) are mounted on the supporting side wings (63), the rotating plate (61) can rotate around the rotating shaft (62), the lower side of the rotating plate (61) is connected to a force transmission spring (64), the end of the force transmission spring (64) is equipped with a vibration ball (65), the vibration ball (65) is located in the shear thickening liquid energy absorption cavity (66), one end of the pull-out resistant threaded steel (68) is welded to the lower side of the bottom plate (67), and the other end is buried in the core concrete (2).

5. The fiber resin constrained shear thickening liquid energy dissipation prefabricated wall according to claim 1, characterized in that: The main steel plate (71) in the steel rotating shaft (7) is welded with a shear-resistant threaded steel bar (73) on the lower side and a rotating shaft steel plate (72) on the upper side. The shear-resistant threaded steel bar (73) is pre-buried in the floor slab concrete. The top of the rotating shaft steel plate (72) is in an arc shape. The height of the steel rotating shaft (7) is 1 / 8 to 1 / 4 of the height of the energy-consuming prefabricated wall, and the width is 1 / 6 to 1 / 4 of the width of the energy-consuming prefabricated wall.

6. The fiber resin constrained shear thickening liquid energy dissipation prefabricated wall according to claim 1, characterized in that: The fiber resin constrained lightweight anti-buckling support (8) is composed of a support frame (81), a steel support core (82), anti-buckling lightweight concrete (83), and a fiber resin constraining cylinder (84).

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