Bridge anti-seismic support

Abstract

The embodiment of the utility model discloses a bridge anti-seismic support, and relates to the technical field of bridge supports. According to the technical scheme, the anti-seismic device comprises a horizontally-arranged base, a damping shock absorber, a shock absorption seat, an anti-seismic seat, a supporting assembly and a supporting seat, wherein the damping shock absorber and the shock absorption seat are arranged on the base, the anti-seismic seat is horizontally arranged on the damping shock absorber, the supporting assembly is vertically arranged on the anti-seismic seat, and the supporting seat is horizontally arranged on the supporting assembly. According to the embodiment of the invention, while a bridge is supported, a certain damping effect can be achieved, the anti-seismic effect is good, and the service life is long.

Description

Technical Field

[0001] The present application relates to the technical field of bridge bearings, and in particular to an earthquake-resistant bridge bearing. Background Art

[0002] Bridges generally refer to structures erected over rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern high-speed development of the transportation industry, bridges are also extended to buildings that are erected to cross mountain streams, poor geology, or meet other transportation needs to make travel more convenient. Bridges are generally composed of superstructures, substructures, supports, and ancillary structures. The superstructure, also known as the span structure, is the main structure for crossing obstacles; the substructure includes abutments, piers, and foundations; the supports are force transmission devices installed at the supporting locations of the span structure and piers or abutments; and the ancillary structures refer to the bridgehead slabs, conical slope protection, revetments, diversion projects, etc.

[0003] In order to ensure the safety of bridges, bearings are often needed to support the bridges. However, the bearings used in existing bridges have poor seismic performance, which can easily lead to damage of the bridge bearings after a period of use, resulting in a short service life of the bridge bearings. Utility Model Content

[0004] In view of this, an embodiment of the present application provides a seismic-resistant bridge bearing, which solves the problem that in order to ensure the safety of the bridge, bearings are often needed to support the bridge, but the bearings used in existing bridges have poor seismic performance, which can easily cause damage to the bridge bearings after a period of use, resulting in a short service life of the bridge bearings.

[0005] An embodiment of the present application provides a seismic bearing for a bridge, comprising a horizontally arranged base, a damping shock absorber and a shock absorbing seat arranged on the base, a seismic seat horizontally arranged on the damping shock absorber, a supporting assembly vertically arranged on the seismic bearing, and a supporting seat horizontally arranged on the supporting assembly.

[0006] According to a specific implementation method of the embodiment of the present application, the shock-absorbing seat includes a mounting column vertically fixed on the base, the mounting column is hollow inside and open at the top, a pressure plate is horizontally arranged inside the mounting column, an annular limit plate is horizontally fixed on the top of the mounting column, the annular limit plate can limit the pressure plate from upwardly detaching from the mounting column, a telescopic rod is vertically fixed on the top of the pressure plate, the top of the telescopic rod and the top of the damping shock absorber are both fixedly connected to the bottom of the anti-seismic seat, a first spring is arranged between the pressure plate and the bottom inner wall of the mounting column, the top of the first spring is fixed to the bottom of the pressure plate, and the bottom of the first spring is fixed to the bottom inner wall of the mounting column.

[0007] According to a specific implementation of the embodiment of the present application, four damping shock absorbers are provided, and the four damping shock absorbers are distributed at the four corners of the base.

[0008] According to a specific implementation of the embodiment of the present application, a buffer component is arranged between the base and the anti-seismic seat, and the buffer component includes a strip-shaped mounting groove opened on the base, a cross bar horizontally fixed in the mounting groove, a first slider and a second slider slidably arranged on the cross bar, a second spring and a third spring sleeved on the cross bar, and a baffle fixedly sleeved in the middle position of the cross bar, the first slider and the second slider are respectively located on both sides of the baffle, one end of the second spring is fixed to a side wall of the first slider away from the second slider, the other end of the second spring is fixed to a side groove wall of the mounting groove, one end of the third spring is fixed to a side wall of the second slider away from the first slider, and the other end of the third spring is fixed to the other side groove wall of the mounting groove, a first mounting block is fixed on the top of the first slider, a second mounting block is fixed on the top of the second slider, a third mounting block and a fourth mounting block are fixed on the bottom of the anti-seismic seat, a first shock-absorbing rod is hinged between the first mounting block and the third mounting block, and a second shock-absorbing rod is hinged between the second mounting block and the fourth mounting block.

[0009] According to a specific implementation of the embodiment of the present application, the support assembly includes a support rod vertically fixed on the anti-vibration seat, a lifting rod slidably arranged in the support rod, and a fastener fixing the support rod and the lifting rod as a whole.

[0010] According to a specific implementation method of an embodiment of the present application, the fastener includes a sliding rod horizontally fixed to the side wall of the lifting rod, a sliding groove is vertically opened on the side wall of the support rod, the sliding rod passes through the sliding groove, and the sliding rod can slide in the sliding groove, and a nut is threadedly connected to the sliding rod.

[0011] According to a specific implementation of the embodiment of the present application, fixing parts are provided at both ends of the short side walls of the base.

[0012] According to a specific implementation of the embodiment of the present application, the fixing member includes an L-shaped corner seat fixed to the side wall of the base by bolts and a fixing pile fixedly arranged at the bottom of the L-shaped corner seat.

[0013] According to a specific implementation of the embodiment of the present application, a tip is provided at the bottom of the fixing pile.

[0014] Compared with the prior art, this application has the following characteristics and beneficial effects:

[0015] The embodiment of the present application provides a seismic bearing for a bridge. When the bridge vibrates, the seismic bearing is pressed down to squeeze the damping shock absorber. At the same time, the telescopic rod is pressed down to squeeze the first spring. The seismic bearing is pressed down to push the first slider and the second slider to slide to both sides through the first shock-absorbing rod and the second shock-absorbing rod. The first slider and the second slider squeeze the second spring and the third spring. The damping shock absorber cooperates with the first spring, the second spring and the third spring to play a good seismic role, thereby extending the service life of the seismic bearing. By means of the provided support assembly, the height of the support seat can be adjusted by pulling the lifting rod, which is convenient for supporting bridges of different heights and has high flexibility. By means of the provided fasteners, the fixing and disassembly between the support rod and the lifting rod are facilitated, and the height of the support seat can be adjusted more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of a bridge seismic bearing according to an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the front structure of a bridge seismic bearing according to an embodiment of the present application;

[0019] Figure 3 This is a right side structural schematic diagram of a bridge seismic bearing according to an embodiment of the present application;

[0020] Figure 4 for Figure 3 Schematic diagram of the AA section structure.

[0021] In the figure, 1, base; 2, damping shock absorber; 3, shock absorbing seat; 31, mounting column; 32, pressure plate; 33, limit plate; 34, telescopic rod; 35, first spring; 4, anti-seismic seat; 5, support assembly; 51, support rod; 511, slide groove; 52, lifting rod; 521, slide rod; 5211, nut; 6, support seat; 7, buffer assembly; 71, mounting groove; 72, cross bar; 721, baffle; 73, first slider; 731, first mounting block; 74, second slider; 741, second mounting block; 75, second spring; 76, third spring; 77, third mounting block; 771, first shock absorbing rod; 78, fourth mounting block; 781, second shock absorbing rod; 8, fixing piece; 81, angle seat; 82, fixing pile. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0023] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0024] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a seismic bearing for a bridge, comprising a horizontally arranged base 1, a damping shock absorber 2 and a shock absorbing seat 3 arranged on the base 1, a seismic seat 4 horizontally arranged on the damping shock absorber 2, a supporting assembly 5 vertically arranged on the seismic seat 4, and a supporting seat 6 horizontally arranged on the supporting assembly 5.

[0025] In one implementation of this embodiment, combined with Figure 3 and Figure 4 The shock-absorbing seat 3 includes a mounting column 31 vertically fixed on the base 1. The mounting column 31 is hollow inside and open at the top. A pressure plate 32 is horizontally arranged in the mounting column 31. An annular limiting plate 33 is horizontally fixed on the top of the mounting column 31. The annular limiting plate 33 can limit the pressure plate 32 from upwardly escaping from the mounting column 31. A telescopic rod 34 is vertically fixed on the top of the pressure plate 32. The top of the telescopic rod 34 and the top of the damping shock absorber 2 are fixedly connected to the bottom of the anti-seismic seat 4. A first spring 35 is arranged between the pressure plate 32 and the inner wall of the bottom of the mounting column 31. The top of the first spring 35 is fixed to the bottom of the pressure plate 32, and the bottom of the first spring 35 is fixed to the inner wall of the bottom of the mounting column 31.

[0026] In one embodiment, four damping shock absorbers 2 are provided, and the four damping shock absorbers 2 are distributed at the four corners of the base 1. In this embodiment, two shock absorbing seats 3 are provided, one of which is provided between the two damping shock absorbers 2 located on one short side of the base 1, and the other shock absorbing seat 3 is provided between the two damping shock absorbers 2 located on the other short side of the base 1.

[0027] In one implementation of this embodiment, Figure 4As shown, a buffer assembly 7 is provided between the base 1 and the anti-vibration seat 4. Specifically, the buffer assembly 7 includes a strip-shaped mounting groove 71 provided on the base 1, a cross bar 72 horizontally fixed in the mounting groove 71, a first slider 73 and a second slider 74 slidably provided on the cross bar 72, a second spring 75 and a third spring 76 sleeved on the cross bar 72, and a baffle 721 fixedly sleeved in the middle of the cross bar 72, the first slider 73 and the second slider 74 are respectively located on both sides of the baffle 721, one end of the second spring 75 is fixed on a side wall of the first slider 73 away from the second slider 74, and the other end of the second spring 75 is fixed on one side of the mounting groove 71 On the groove wall, one end of the third spring 76 is fixed on a side wall of the second slider 74 away from the first slider 73, and the other end of the third spring 76 is fixed on the other side groove wall of the mounting groove 71. A first mounting block 731 is fixed on the top of the first slider 73, and a second mounting block 741 is fixed on the top of the second slider 74. A third mounting block 77 and a fourth mounting block 78 are fixed on the bottom of the anti-vibration seat 4. A first shock-absorbing rod 771 is hinged between the first mounting block 731 and the third mounting block 77, and a second shock-absorbing rod 781 is hinged between the second mounting block 741 and the fourth mounting block 78.

[0028] When the bridge vibrates, the anti-seismic seat 4 is pressed down to squeeze the damping shock absorber 2, and at the same time the telescopic rod 34 is pressed down to squeeze the first spring 35. The anti-seismic seat 4 is pressed down, and the first slider 73 and the second slider 74 are pushed to slide to both sides through the first shock-absorbing rod 771 and the second shock-absorbing rod 781. The first slider 73 and the second slider 74 squeeze the second spring 75 and the third spring 76. The damping shock absorber 2 cooperates with the first spring 35, the second spring 75 and the third spring 76 to play a good anti-seismic role, thereby extending the service life of the anti-seismic bearing.

[0029] In one implementation of this embodiment, Figure 1 As shown, the support assembly 5 includes a support rod 51 vertically fixed on the anti-vibration seat 4, a lifting rod 52 slidably arranged in the support rod 51, and a fastener fixing the support rod 51 and the lifting rod 52 as a whole.

[0030] Specifically, the fastener includes a slide bar 521 horizontally fixed to the side wall of the lifting rod 52, a slide groove 511 is vertically opened on the side wall of the support rod 51, the slide bar 521 passes through the slide groove 511, and the slide bar 521 can slide in the slide groove 511, and a nut 5211 is threadedly connected to the slide bar 521. Unscrewing the nut 5211 and moving the slide bar 521 up and down can adjust the height of the support seat 6. After adjusting to a suitable position, re-tightening the nut 5211 can fix the lifting rod 52 and the support rod 51. This arrangement is convenient for supporting bridges of different heights and has high flexibility.

[0031] In one implementation of this embodiment, fixing members 8 are provided at both ends of the short side walls of the base 1. The fixing member 8 includes an L-shaped angle seat 81 fixed to the side wall of the base 1 by bolts and a fixing pile 82 fixedly provided at the bottom of the L-shaped angle seat 81. When the anti-seismic support is fixed, the fixing pile 82 can be inserted into the ground for fixing.

[0032] In one embodiment, a tip is provided at the bottom of the fixing pile 82. The tip can make it more convenient and labor-saving to insert the fixing pile 82 into the ground.

[0033] The embodiment of the present application provides a bridge anti-seismic support. When in use, first insert the fixed pile 82 into the ground to fix the base 1, adjust the height of the support seat 6 according to the height of the bridge, unscrew the nut 5211, pull the slide bar 521, and the slide bar 521 can drive the lifting rod 52 to move up and down. When the height adjustment is completed, tighten the nut 5211 to fix the height of the lifting rod 52, so that the support seat 6 supports the bridge. When the bridge vibrates, the anti-seismic seat 4 is pressed down to squeeze the damping shock absorber 2, and at the same time, the telescopic rod 34 is pressed down to squeeze the first spring 35. The anti-seismic seat 4 is pressed down, and the first and second sliders 73 and 74 are pushed to slide to both sides through the first and second shock absorbing rods 771 and 781. The first and second sliders 73 and 74 squeeze the second springs 75 and the third springs 76. The damping shock absorber 2 cooperates with the first spring 35, the second spring 75 and the third spring 76 to play a good anti-seismic role, thereby extending the service life of the anti-seismic support.

[0034] It should be noted that, in this article, the emphasis of the scheme described between the various embodiments is different, but the various embodiments have a certain interrelated relationship. When understanding the scheme of the present application, the various embodiments can refer to each other; in addition, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such a process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A bridge seismic bearing, characterized in that: The invention comprises a base (1) arranged horizontally, a damping shock absorber (2) and a shock absorbing seat (3) arranged on the base (1), an anti-vibration seat (4) arranged horizontally on the damping shock absorber (2), a support assembly (5) arranged vertically on the anti-vibration seat (4), and a support seat (6) arranged horizontally on the support assembly (5); the shock absorbing seat (3) comprises a mounting column (31) arranged vertically fixed on the base (1), the mounting column (31) is hollow inside and open at the top, a pressing plate (32) is arranged horizontally inside the mounting column (31), and an annular limiting plate (32) is horizontally fixed on the top of the mounting column (31). A positioning plate (33) is provided, wherein the annular limiting plate (33) can limit the pressure plate (32) from being upwardly separated from the mounting column (31); a telescopic rod (34) is vertically fixed on the top of the pressure plate (32); the top of the telescopic rod (34) and the top of the damping shock absorber (2) are both fixedly connected to the bottom of the anti-vibration seat (4); a first spring (35) is provided between the pressure plate (32) and the bottom inner wall of the mounting column (31); the top of the first spring (35) is fixed to the bottom of the pressure plate (32); and the bottom of the first spring (35) is fixed to the bottom inner wall of the mounting column (31).

2. The bridge seismic bearing according to claim 1, characterized in that: Four damping shock absorbers (2) are provided, and the four damping shock absorbers (2) are distributed at the four corners of the base (1).

3. The bridge seismic bearing according to claim 1, characterized in that: A buffer assembly (7) is arranged between the base (1) and the anti-vibration seat (4), and the buffer assembly (7) comprises a strip-shaped installation groove (71) provided on the base (1), a cross bar (72) horizontally fixed in the installation groove (71), a first slider (73) and a second slider (74) slidably arranged on the cross bar (72), a second spring (75) and a third spring (76) sleeved on the cross bar (72), and a baffle (721) fixedly sleeved in the middle position of the cross bar (72), the first slider (73) and the second slider (74) are respectively located on two sides of the baffle (721), one end of the second spring (75) is fixed on a side wall of the first slider (73) away from the second slider (74), and the second spring (75) is fixed on the side wall of the first slider (73) away from the second slider (74). The other end is fixed to a groove wall on one side of the mounting groove (71); one end of the third spring (76) is fixed to a side wall of the second slider (74) away from the first slider (73); the other end of the third spring (76) is fixed to the groove wall on the other side of the mounting groove (71); a first mounting block (731) is fixed to the top of the first slider (73); a second mounting block (741) is fixed to the top of the second slider (74); a third mounting block (77) and a fourth mounting block (78) are fixed to the bottom of the anti-vibration seat (4); a first shock-absorbing rod (771) is hingedly connected between the first mounting block (731) and the third mounting block (77); and a second shock-absorbing rod (781) is hingedly connected between the second mounting block (741) and the fourth mounting block (78).

4. The bridge seismic bearing according to claim 1, characterized in that: The support assembly (5) comprises a support rod (51) vertically fixed on the anti-vibration seat (4), a lifting rod (52) slidably arranged in the support rod (51), and a fastener fixing the support rod (51) and the lifting rod (52) as a whole.

5. The bridge seismic bearing according to claim 4, characterized in that: The fastener comprises a sliding rod (521) horizontally fixed to the side wall of the lifting rod (52); a sliding groove (511) is vertically opened on the side wall of the support rod (51); the sliding rod (521) passes through the sliding groove (511) and can slide in the sliding groove (511); a nut (5211) is threadedly connected to the sliding rod (521).

6. The bridge seismic bearing according to claim 1, characterized in that: Fixing members (8) are provided at both ends of the short side walls of the base (1).

7. The bridge seismic bearing according to claim 6, characterized in that: The fixing member (8) comprises an L-shaped angle seat (81) fixed to the side wall of the base (1) by means of bolts, and a fixing pile (82) fixedly arranged at the bottom of the L-shaped angle seat (81).

8. The bridge seismic bearing according to claim 7, characterized in that: The bottom of the fixing pile (82) is provided with a pointed portion.

Images