A bidirectional assembled vibration reduction device in deep foundation pit pile anchor support system

Abstract

A bidirectional assembled vibration reduction device in a deep foundation pit pile anchor support system relates to the field of geotechnical engineering, and includes a groove steel waist beam, a vertical assembled vibration reduction device, a horizontal assembled vibration reduction device, a prestressed anchor cable, an anchor and a hexagon socket bolt. The vertical assembled vibration reduction device in the present invention realizes the energy dissipation and vibration reduction effect of the entire support structure under the vertical vibration. When the entire device is subjected to vertical vibration, the adaptive adjustment ability is generated by the vibration reduction spring to play the vertical energy dissipation and vibration reduction effect; the horizontal assembled vibration reduction device in the present invention realizes the energy dissipation and vibration reduction effect of the entire support structure under the lateral vibration, and the lateral energy dissipation and vibration reduction effect is played by the self-resetting ability of the butyl rubber vibration reduction pad, and the stability of the deep foundation pit support system is guaranteed by the bidirectional vibration reduction effect. The installation process of the entire vibration reduction device is an assembled construction process, which not only speeds up the construction progress, but also saves costs, and solves the problems of the cumbersome and difficult existing technologies. As an environmentally friendly material, the butyl rubber vibration reduction pad not only has heat resistance and aging resistance, but also has a good energy dissipation and vibration reduction effect, and plays a good role in green construction.

Description

Technical Field

[0001] The invention belongs to the field of geotechnical engineering, and in particular relates to a bidirectional assembled vibration reduction device in a deep foundation pit pile-anchor support system. Background Art

[0002] With the acceleration of urban construction, high-rise buildings have emerged one after another, and deep foundation pit projects have gradually increased. Many deep foundation pit projects are built close to the main roads and railway lines in the city, which brings a series of difficulties to the construction of deep foundation pit support structures. In the process of deep foundation pit support, it will not only be affected by the flow of people and vehicles, but also by high-speed trains. When the deep foundation pit support process is affected by this kind of bidirectional influence of internal and external dynamic loads, how to ensure the stability of the deep foundation pit support system becomes particularly important. Summary of the invention

[0003] The purpose of the present invention is to provide a bidirectional assembled vibration reduction device in a deep foundation pit pile anchor support system, so as to solve the problem that when the deep foundation pit is affected by bidirectional dynamic loads during the support process, the support system can resist bidirectional vibration and avoid brittle failure of the support system.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A bidirectional assembled vibration reduction device in a deep foundation pit pile anchor support system, characterized in that it comprises a groove steel waist beam, a vertical assembled vibration reduction device, a transverse assembled vibration reduction device, a prestressed anchor cable, an anchor and a hexagon socket bolt. Two vertical assembled vibration reduction devices are arranged on the upper surface of the groove steel waist beam. The vertical assembled vibration reduction device comprises a trapezoidal steel plate slideway, a trapezoidal steel slider, a vibration reduction spring, an upper sealing steel plate and a lower sealing steel plate. The two vertical assembled vibration reduction devices are fixedly connected to the groove steel waist beam by hexagon socket bolts. The transverse assembled vibration reduction device is fixedly connected to the groove steel waist beam by a hexagon socket bolt. The assembled vibration damping device includes an assembled steel plate I, a butyl rubber vibration damping pad and an assembled steel plate II. The assembled steel plate I, the butyl rubber vibration damping pad and the assembled steel plate II are fixedly connected by four hexagon socket bolts. The transverse assembled vibration damping device and the vertical assembled vibration damping device are fixedly connected by four hexagon socket bolts. The anchor is installed on the surface of the assembled steel plate II. The prestressed anchor cable sequentially penetrates the trough steel waist beam and the transverse assembled vibration damping device. The prestressed anchor cable extends out of the outside of the assembled steel plate II and is fixed by the anchor.

[0006] The vertical assembled vibration reduction device vertically fixes the prestressed anchor cable through the vibration reduction spring and keeps the incident angle of the prestressed anchor cable constant. When the whole device is subjected to vertical vibration, the vibration reduction spring generates adaptive adjustment ability to exert vertical energy dissipation and vibration reduction effect.

[0007] The transversely assembled vibration reduction device fixes the prestressed anchor cable laterally. When the entire device is subjected to transverse vibration, the self-resetting ability of the butyl rubber vibration reduction pad plays a transverse energy dissipation and vibration reduction role. As an environmentally friendly material, the butyl rubber vibration reduction pad has heat resistance and aging resistance, is more adaptable to harsh construction site conditions, and has strong energy dissipation and vibration reduction capabilities.

[0008] The entire installation process of the vibration damping device is an assembly installation, and the bolts used in the entire vibration damping device are all hexagon socket bolts, which facilitates the smooth implementation of the entire assembly installation process.

[0009] The four hexagon socket bolts connecting the transverse assembled vibration damping device and the four hexagon socket bolts connecting the transverse assembled vibration damping device and the vertical assembled vibration damping device are the same set of bolts.

[0010] The bidirectional assembled vibration reduction device in the deep foundation pit pile anchor support system described in the present invention has the following beneficial effects:

[0011] (1) The present invention realizes the energy dissipation and vibration reduction effect of the entire support structure under the action of vertical vibration through a vertical assembled vibration reduction device. The specific process is to vertically fix the prestressed anchor cable through a vibration reduction spring and keep the incident angle of the prestressed anchor cable constant. When the entire device is subjected to vertical vibration, the vibration reduction spring generates an adaptive adjustment ability to play the role of vertical energy dissipation and vibration reduction.

[0012] (2) The present invention realizes the energy dissipation and vibration reduction effect of the entire support structure under the action of lateral vibration through the transverse assembled vibration reduction device. The specific process is to exert the lateral energy dissipation and vibration reduction effect through the self-resetting ability of the butyl rubber vibration reduction pad.

[0013] (3) All devices of the present invention are assembled and installed in a simple manner, which can not only speed up the construction progress, but also save construction time, thus solving the problems of the existing technology being complicated and difficult.

[0014] (4) As an environmentally friendly material, the butyl rubber vibration damping pad has the characteristics of heat resistance and aging resistance, is more adaptable to harsh construction site conditions, has strong energy dissipation and vibration reduction capabilities, and fully demonstrates the characteristics of green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a bidirectional assembled vibration reduction device in a deep foundation pit pile-anchor support system provided by the present invention;

[0016] Figure 2 It is an exploded schematic diagram of a bidirectional assembled vibration reduction device in a deep foundation pit pile-anchor support system provided by the present invention;

[0017] Figure 3 Another perspective view of the exploded schematic diagram of the bidirectional assembled vibration reduction device in the deep foundation pit pile anchor support system provided by the present invention;

[0018] Figure 4 An exploded detailed diagram of the transverse assembled vibration reduction device provided by the present invention;

[0019] Figure 5 This is a detailed exploded view of the vertical assembled vibration reduction device provided by the present invention.

[0020] Explanation of symbols: 1- trough steel waist beam, 2- vertical assembled vibration damping device, 201- trapezoidal steel plate slide, 202- trapezoidal steel slider, 203- vibration damping spring, 204- upper sealing steel plate, 205- lower sealing steel plate, 3- horizontal assembled vibration damping device, 301- assembled steel plate I, 302- butyl rubber vibration damping pad, 303- assembled steel plate II, 4- prestressed anchor cable, 5- anchor, 6- hexagon socket bolt. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] like Figure 1-Figure 5 As shown, a bidirectional assembled vibration reduction device in a deep foundation pit pile-anchor support system includes a channel steel waist beam 1, a vertical assembled vibration reduction device 2, a transverse assembled vibration reduction device 3, a prestressed anchor cable 4, an anchor 5 and a hexagon socket bolt 6.

[0023] The vertical assembled vibration reduction device 2 comprises a trapezoidal steel plate slideway 201, a trapezoidal steel slider 202, a vibration reduction spring 203, an upper sealing steel plate 204, a lower sealing steel plate 205 and an inner hexagonal bolt 6. The trapezoidal steel plate slideway 201 is fixedly connected to the grooved steel waist beam 1 by two inner hexagonal bolts 6. The lower sealing steel plate 205 is welded to the lower end of the trapezoidal steel plate slideway 201. Then the trapezoidal steel slider 202 is placed in the trapezoidal steel plate slideway 201. Four vibration reduction springs 203 are used to connect the trapezoidal steel slider 202, the lower sealing steel plate 205 and the upper sealing steel plate 204 in turn. The upper steel sealing plate 204 is fixedly connected to the upper end of the trapezoidal steel plate slideway 201 by two inner hexagonal bolts 6. The vibration reduction spring 203 has a self-resetting ability, so as to maximize the vertical energy consumption and vibration reduction effect of the vertical assembled vibration reduction device 2.

[0024] The transverse assembled vibration damping device 3 includes an assembled steel plate I301, a butyl rubber vibration damping pad 302, an assembled steel plate II303 and an inner hexagonal bolt 6. The assembled steel plate I301, the butyl rubber vibration damping pad 302 and the assembled steel plate II303 are fixedly connected by four inner hexagonal bolts 6. The four inner hexagonal bolts 6 extend out of the outer part of the assembled steel plate I301 and are used to connect the transverse assembled vibration damping device 3 with the trapezoidal steel slider 202 in the vertical assembled vibration damping device 2. The transverse assembled vibration damping device 3 exerts a transverse energy dissipation and vibration reduction effect through the self-resetting ability of the butyl rubber vibration damping pad 302. The butyl rubber vibration damping pad 302 not only has heat resistance and aging resistance but also has a good energy dissipation and vibration reduction effect, and can maximize the transverse energy dissipation and vibration reduction effect of the transverse assembled vibration damping device 3.

[0025] The vertical assembled vibration reduction device 2 vertically fixes the prestressed anchor cable 4 through the vibration reduction spring 203, and keeps the incident angle of the prestressed anchor cable 4 constant. When the entire device is subjected to vertical vibration, the vibration reduction spring 203 generates adaptive adjustment capability to exert vertical energy dissipation and vibration reduction effect.

[0026] The bolts used in the bidirectional assembled vibration reduction device in the deep foundation pit pile anchor support system are all hexagon socket bolts 6, which facilitates the smooth implementation of the entire assembled installation process.

[0027] The four hexagon socket bolts 6 connecting the transversely assembled vibration damping device 3 and the four hexagon socket bolts 6 connecting the transversely assembled vibration damping device 3 and the vertically assembled vibration damping device 2 are the same set of bolts. This design can not only effectively connect the transversely assembled vibration damping device 3 and the vertically assembled vibration damping device 2, but also reduce the weight of the entire vibration damping device.

[0028] The assembly process of the bidirectional assembled vibration reduction device in the deep foundation pit pile anchor support system of the present invention is as follows:

[0029] First, two vertical assembled vibration damping devices 2 are installed on the surface of the channel steel waist beam 1. The specific operation process is: the trapezoidal steel plate slideway 201 is fixedly connected to the channel steel waist beam 1 by two hexagon socket bolts 6, the lower sealing steel plate 205 is welded to the lower end of the trapezoidal steel plate slideway 201, and the trapezoidal steel slider 202 is placed in the trapezoidal steel plate slideway 201. The lower sealing steel plate 205 is connected to the lower end of the trapezoidal steel slider 202 by two vibration damping springs 203, and the upper sealing steel plate 204 is connected to the upper end of the trapezoidal steel slider 202 by two vibration damping springs 203. The upper sealing steel plate 204 is fixedly connected to the upper end of the trapezoidal steel plate slideway 201 by two hexagon socket bolts 6. The second vertical assembled vibration damping device 2 is assembled in this way;

[0030] Then, the transverse assembled vibration damping device 3 is installed on the vertical assembled vibration damping device 2. The specific operation process is: the assembly steel plate I301, the butyl rubber vibration damping pad 302 and the assembly steel plate II303 are fixedly connected in sequence by four hexagon socket bolts 6. The four hexagon socket bolts 6 extend out of the outer part of the assembly steel plate I301 to connect the transverse assembled vibration damping device 3 with the trapezoidal steel slider 202 in the vertical assembled vibration damping device 2;

[0031] Finally, the prestressed anchor cable 4 is passed through the reserved holes of the channel steel waist beam 1 and the transverse assembled vibration reduction device 3 in turn, and the part of the prestressed anchor cable 4 extending out of the assembled steel plate II303 is fixed by the anchor 5.

[0032] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms “vertical” and “horizontal” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, rather than indicating that the device of the present invention must have a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0033] The above-mentioned assembly construction method is only the assembly process of the present invention. All kinds of modifications, replacements and changes to the structure and materials used in the present invention based on the contents of the present invention, without departing from the basic guiding ideology of the present invention, using common technical means and knowledge within the scope of the present invention, should be within the protection scope of the present invention.

Claims

1. A bidirectional assembled vibration reduction device in a deep foundation pit pile anchor support system, characterized in that: The invention comprises a groove steel waist beam (1), a vertical assembled vibration reduction device (2), a transverse assembled vibration reduction device (3), a prestressed anchor cable (4), an anchor (5) and a hexagon socket bolt (6); the upper surface of the groove steel waist beam (1) is provided with two vertical assembled vibration reduction devices (2); the vertical assembled vibration reduction devices (2) comprise a trapezoidal steel plate slideway (201), a trapezoidal steel slider (202), a vibration reduction spring (203), an upper sealing steel plate (204) and a lower sealing steel plate (205); the two vertical assembled vibration reduction devices (2) are fixedly connected to the groove steel waist beam (1) by means of the hexagon socket bolt (6); the transverse assembled vibration reduction device (3) comprises an assembled steel plate (3 01), butyl rubber vibration damping pad (302) and assembly steel plate II (303), the assembly steel plate I (301), butyl rubber vibration damping pad (302) and assembly steel plate II (303) are fixedly connected by four hexagon socket bolts (6), the transverse assembled vibration damping device (3) and the vertical assembled vibration damping device (2) are fixedly connected by four hexagon socket bolts (6), the anchor (5) is installed on the surface of the assembly steel plate II (303), the prestressed anchor cable (4) passes through the grooved steel waist beam and the transverse assembled vibration damping device (3) in sequence, and the prestressed anchor cable (4) extends out of the assembly steel plate II (303) and is fixed by the anchor (5).

2. The bidirectional assembled vibration reduction device in the deep foundation pit pile anchor support system according to claim 1 is characterized in that: The vertical assembled vibration reduction device (2) vertically fixes the prestressed anchor cable (4) through the vibration reduction spring (203) and keeps the incident angle of the prestressed anchor cable (4) constant. When the entire device is subjected to vertical vibration, the vibration reduction spring (203) generates an adaptive adjustment capability to exert a vertical energy dissipation vibration reduction effect.

3. The bidirectional assembled vibration reduction device in the deep foundation pit pile anchor support system according to claim 1 is characterized in that: The transversely assembled vibration reduction device (3) fixes the prestressed anchor cable (4) transversely. When the entire device is subjected to transverse vibration, the self-resetting ability of the butyl rubber vibration reduction pad (302) exerts a transverse energy dissipation and vibration reduction effect. The butyl rubber vibration reduction pad (302) is an environmentally friendly material with heat resistance and aging resistance, is more adaptable to harsh construction site conditions, and has a strong energy dissipation and vibration reduction ability.

4. The bidirectional assembled vibration reduction device in the deep foundation pit pile anchor support system according to claim 1, characterized in that: The entire vibration reduction device installation process is an assembly installation, and the bolts used in the entire vibration reduction device are all hexagon socket bolts (6), which facilitates the smooth implementation of the entire assembly installation process.

5. The bidirectional assembled vibration reduction device in the deep foundation pit pile anchor support system according to claim 1, characterized in that: The four hexagon socket bolts (6) connecting the transverse assembled vibration damping device (3) and the four hexagon socket bolts (6) connecting the transverse assembled vibration damping device (3) and the vertical assembled vibration damping device (2) are the same set of bolts.

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