A telescopic device for preventing suspension bridge from shaking

Abstract

The present invention discloses a telescopic device for resisting the swaying of a suspension bridge, comprising a first beam end, a second beam end, a first comb plate and a second comb plate, wherein an expansion joint is formed between the first beam end and the second beam end, and characterized in that: a first support member is installed at the first beam end, and the root of the first comb plate is rotatably connected to the first support member; a second support member is installed at the second beam end, and the root of the second comb plate is rotatably connected to the second support member. Compared with the prior art, the present invention has the advantages that: the first comb plate of the telescopic device for resisting the swaying of a suspension bridge is rotatably connected to the first support member located at the first beam end, and the second comb plate is rotatably connected to the second support member located at the second beam end, so that the multi-directional displacement of the telescopic device can be realized, so that the telescopic device can adapt to the swaying of the suspension bridge, and the swaying of the suspension bridge can be avoided from causing damage to the telescopic device.

Description

Technical Field

[0001] The invention relates to the field of expansion joints, and in particular to an expansion joint device capable of resisting the shaking of a suspension bridge. Background Art

[0002] A suspension bridge is a flexible cable suspension bridge structure with the main cable as the main load-bearing component. The deadweight of the main beam, secondary dead load, vehicle live load, temperature effects, strong winds, earthquakes and other loads are all transmitted to the main cable through the slings, and finally the main cable transmits all the loads to the foundation from the main tower or anchor. Expansion joints are structural joints set to prevent cracks or damage to the structure of building components due to climate temperature changes (thermal expansion and contraction). To ensure the safety of personnel and vehicles, a comb plate expansion device needs to be installed at the structural joint. In the daily use of suspension bridges, due to the influence of some external factors, such as wind, the suspension bridge will shake, which is easy to damage the structure of ordinary expansion joints, and then cause the failure of the expansion joints. Therefore, it is necessary to propose a telescopic device that can resist the shaking of suspension bridges. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a telescopic device for resisting the swaying of a suspension bridge, which can prevent the swaying of the suspension bridge from damaging the telescopic device, in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: the telescopic device for resisting the sway of the suspension bridge includes a first beam end, a second beam end, a first comb tooth plate and a second comb tooth plate, and an expansion joint is formed between the first beam end and the second beam end, characterized in that: a first supporting member is installed at the first beam end, and the root of the first comb tooth plate is rotatably connected to the first supporting member; a second supporting member is installed at the second beam end, and the root of the second comb tooth plate is rotatably connected to the second supporting member.

[0005] The first support member can have a variety of structures. Preferably, the first support member includes a support plate, an upper clamping plate and a lower clamping plate. The support plate is fixed on the inner side of the end of the first beam. The upper clamping plate and the lower clamping plate are fixed on the support plate. A mounting cavity with an opening toward the first comb plate is formed between the upper clamping plate and the lower clamping plate. The root of the first comb plate is provided with a ball rolling in the mounting cavity. In this way, a spherical hinge structure is formed between the first comb plate and the first support member, so that the first comb plate can rotate or move freely with the shaking of the suspension bridge, thereby eliminating the impact of the shaking of the suspension bridge.

[0006] Preferably, the support plate is arranged horizontally, the upper clamping plate and the lower clamping plate are arranged above the support plate and are fixedly connected to the side of the support plate close to the end of the first beam by a first bolt, and the first comb plate is movably connected to the side of the support plate away from the end of the first beam by a second bolt.

[0007] In order to enable the first comb plate to rotate flexibly relative to the support plate, through holes are spaced apart on the support plate along the width direction of the bridge, and the root of the rack of the first comb plate is provided with first mounting holes corresponding to the through holes one by one, and the second bolt passes through the first mounting hole and the through hole in sequence from top to bottom, and the aperture of the through hole is larger than the outer diameter of the second bolt, and a nut is installed at the lower end of the second bolt, and a spring is sleeved on the lower end of the second bolt, the upper end of the spring is against the support plate, and the lower end of the spring is against the nut.

[0008] In order to enable the first comb plate to move laterally relative to the support plate, the through hole is a waist-shaped hole, and the length direction of the waist-shaped hole is consistent with the width direction of the bridge.

[0009] In order to make the support plate installation structure more secure, the first support member also includes ribs, which are fixed to the inner wall of the end of the first beam and arranged at intervals along the width direction of the bridge, and the support plate is supported and fixed on the ribs.

[0010] Preferably, the second comb plate can rotate in a horizontal direction relative to the second supporting member.

[0011] It is further preferred that the root of the rack of the second comb plate is provided with a second mounting hole, the rack of the second comb plate is provided with third mounting holes spaced apart along the length direction, the second supporting member is a fixed base plate located below the second comb plate, a fourth mounting hole corresponding to the second mounting hole and a fifth mounting hole corresponding to the third mounting hole are provided on the fixed base plate, the third bolt passes through the second mounting hole and the fourth mounting hole in sequence from top to bottom so that the second comb plate can rotate horizontally relative to the fixed base plate around the third bolt, the fifth mounting hole is a waist-shaped through hole, the fourth bolt passes through the third mounting hole and the fifth mounting hole in sequence from top to bottom, and the length direction of the waist-shaped through hole is consistent with the width direction of the bridge. In this way, the second comb plate can rotate around the third bolt, thereby further alleviating the impact of the swaying of the suspension bridge.

[0012] In order to enable the first comb plate and the second comb plate to move laterally relative to each other, a transverse movable gap is reserved between the first comb plate and the second comb plate.

[0013] As a preferred embodiment of any of the above schemes, the first comb tooth plate is a movable comb tooth plate arranged across the expansion joint, and the second comb tooth plate is a fixed comb tooth plate.

[0014] Compared with the prior art, the advantage of the present invention is that the first comb plate of the telescopic device for resisting the sway of the suspension bridge is rotatably connected to the first supporting member located at the end of the first beam, and the second comb plate is rotatably connected to the second supporting member located at the end of the second beam. In this way, multi-directional displacement of the telescopic device can be achieved, so that the telescopic device can adapt to the sway of the suspension bridge and avoid damage to the telescopic device caused by the sway of the suspension bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of an embodiment of the present invention after removing part of the first comb plate and the second comb plate;

[0017] Figure 3 A top view of an embodiment of the present invention;

[0018] Figure 4 A side view of an embodiment of the present invention;

[0019] Figure 5 A structural cross-sectional view of an embodiment of the present invention;

[0020] Figure 6 is a schematic structural diagram of a first comb plate according to an embodiment of the present invention;

[0021] Figure 7 is a schematic structural diagram of a second comb plate according to an embodiment of the present invention;

[0022] Figure 8 Schematic diagram of the structure of the fixed base plate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the telescopic device for anti-swaying suspension bridge of this embodiment comprises a first beam end 1, a second beam end 2, a first comb plate 3 and a second comb plate 4, a telescopic gap 5 is formed between the first beam end 1 and the second beam end 2, the head of the first comb plate 3 and the head of the second comb plate 4 are mutually plugged, and a transverse movable gap is left between the first comb plate 3 and the second comb plate 4. In this embodiment, the first comb plate 3 is a movable comb plate straddling above the telescopic gap 5, and the second comb plate 4 is a fixed comb plate.

[0025] like Figures 2 to 7 As shown, a first support member 6 is installed at the first beam end 1, and the root of the first comb plate 3 is rotatably connected to the first support member 6. A second support member 7 is installed at the second beam end 2, and the root of the second comb plate 4 is rotatably connected to the second support member 7.

[0026] In this embodiment, the first support member 6 includes a support plate 61, an upper clamping plate 62, a lower clamping plate 63 and a rib plate 64. The rib plate 64 is fixed to the inner side wall of the first beam end 1 and arranged at intervals along the width direction of the bridge. The support plate 61 is horizontally arranged and supported and fixed on the rib plate 64. The upper clamping plate 62 and the lower clamping plate 63 are arranged above the support plate 63 and are fixedly connected to the side of the support plate 61 close to the first beam end 1 by the first bolt 81. After the upper clamping plate 62 and the lower clamping plate 63 are installed, an installation cavity 64 with an opening facing the first comb plate 3 is formed between the upper clamping plate 62 and the lower clamping plate 63. The root of the first comb plate 3 is provided with a ball 31 rolling in the installation cavity 64. The ball 31 can be integrally formed with the first comb plate 3 or welded to the first comb plate 3.

[0027] In addition, the first comb plate 3 is movably connected to the side of the support plate 61 away from the first beam end 1 through the second bolt 82. Specifically, through holes 611 are spaced apart along the width direction of the bridge on the support plate 61, and the root of the rack of the first comb plate 3 is provided with a first mounting hole 32 corresponding to the through hole 611, and the second bolt 82 passes through the first mounting hole 32 and the through hole 611 from top to bottom. The through hole 611 of this embodiment is a waist-shaped hole, the length direction of which is consistent with the width direction of the bridge, and the aperture of the through hole 611 is larger than the outer diameter of the second bolt 82. A nut 9 is installed at the lower end of the second bolt 82, and a spring 10 is sleeved on the lower end of the second bolt 82, and the upper end of the spring 10 is against the support plate 61, and the lower end of the spring 10 is against the nut 9. Thus, a spherical hinge structure is formed between the root of the first comb plate 3 and the first supporting member 6, so that the first comb plate 3 can rotate or move freely with the shaking of the suspension bridge, and interference between the second bolt 82 and the supporting plate 61 during relative movement can be avoided.

[0028] The second comb plate 4 of this embodiment can rotate in the horizontal direction relative to the second supporting member 7. The specific rotation structure is as follows: a second mounting hole 41 is opened at the root of the rack of the second comb plate 4, and third mounting holes 42 are distributed at intervals along the length direction on the rack of the second comb plate 4. Figure 8As shown, the second supporting member 7 is a fixed bottom plate located below the second comb plate 4, and a fourth mounting hole 71 and a fifth mounting hole 72 are opened on the fixed bottom plate. Among them, the fourth mounting hole 71 is located at the root of the second comb plate 7 and is aligned with the second mounting hole 41 in the vertical direction, and the fifth mounting hole 72 is spaced apart along the length direction of the rack of the second comb plate 4, and the fifth mounting hole 72 is aligned with the third mounting hole 42 in the vertical direction. The third bolt 83 passes through the second mounting hole 41 and the fourth mounting hole 71 in sequence from top to bottom, and the fifth mounting hole 72 is a waist-shaped through hole. The fourth bolt 84 passes through the third mounting hole 42 and the fifth mounting hole 72 in sequence from top to bottom, and the length direction of the waist-shaped through hole is consistent with the width direction of the bridge, so that the second comb plate 4 can rotate horizontally relative to the fixed bottom plate around the third bolt 83.

[0029] In addition, in this embodiment, three fifth mounting holes 72 are opened on each rack of the second comb plate 4, and since the root of the second comb plate 4 rotates around the third bolt 83, the fifth mounting hole 72 adjacent to the fourth mounting hole 71 is the shortest, the fifth mounting hole 72 adjacent to the rack head is the longest, and the fifth mounting hole 72 in the middle is the second longest, thereby avoiding interference between the fourth bolt 84 and the second supporting member 7 during movement.

[0030] It can be seen from the above structure of this embodiment that the multi-directional displacement of the telescopic device can be achieved through the free rotation of the first comb plate 3 relative to the first supporting member 6 and the horizontal rotation of the root of the second comb plate 4 relative to the second supporting member 7, so that the telescopic device can adapt to the shaking of the suspension bridge and avoid damage to the telescopic device caused by the shaking of the suspension bridge.

Claims

1. A telescopic device for preventing suspension bridge from shaking, comprising a first beam end (1), a second beam end (2), a first comb plate (3) and a second comb plate (4), wherein an expansion joint (5) is formed between the first beam end (1) and the second beam end (2), and characterized in that: The first beam end (1) is provided with a first supporting member (6), the root of the first comb plate (3) is rotatably connected to the first supporting member (6), the second beam end (2) is provided with a second supporting member (7), the root of the second comb plate (4) is rotatably connected to the second supporting member (7), the first supporting member (6) comprises a supporting plate (61), an upper clamping plate (62) and a lower clamping plate (63), the supporting plate (61) is fixed to the inner side of the first beam end (1), the upper clamping plate (62) is fixed to the inner side of the first beam end (1), the upper clamping plate (63) is fixed to the inner side of the first beam end (1), the upper clamping plate (62) is fixed to the inner side of the first beam end (1), the lower clamping plate (63) is fixed to the inner side of the first beam end (1), the lower clamping plate (63) is fixed to the inner side of the first beam end (1), the lower clamping plate (63) is fixed to the inner side of the first beam end (1), the upper clamping plate (62 ... The upper clamping plate (62) and the lower clamping plate (63) are fixed on the support plate (61), and a mounting cavity (65) with an opening facing the first comb plate (3) is formed between the upper clamping plate (62) and the lower clamping plate (63), and the root of the first comb plate (3) is provided with a ball (31) rollingly arranged in the mounting cavity (65), and the support plate (61) is arranged horizontally, and the upper clamping plate (62) and the lower clamping plate (63) are arranged above the support plate (61) and are fixedly connected to the support plate (61) near the first comb plate (3) by a first bolt (81). The invention relates to a bridge structure comprising: a first comb plate (3) on one side of a beam end (1), the first comb plate (3) being movably connected to a side of a support plate (61) away from the first beam end (1) by a second bolt (82), the support plate (61) being provided with through holes (611) spaced apart along the width direction of the bridge, the root of the rack of the first comb plate (3) being provided with first mounting holes (32) corresponding to the through holes (611), the second bolt (82) passing through the first mounting holes (32) and the through holes (611) in sequence from top to bottom, the through holes ( The hole diameter of the through hole (611) is larger than the outer diameter of the second bolt (82), a nut (9) is installed at the lower end of the second bolt (82), and a spring (10) is sleeved on the lower end of the second bolt (82), the upper end of the spring (10) is against the support plate (61), and the lower end of the spring (10) is against the nut (9), the through hole (611) is a waist-shaped hole, and the length direction of the waist-shaped hole is consistent with the width direction of the bridge, and the second comb plate (4) can rotate in the horizontal direction relative to the second support member (7).

2. The telescopic device for anti-swaying of a suspension bridge according to claim 1, characterized in that: The first supporting member (6) further comprises ribs (64), the ribs (64) being fixed to the inner side wall of the first beam end (1) and arranged at intervals along the width direction of the bridge, and the supporting plate (61) being supported and fixed on the ribs (64).

3. The telescopic device for preventing suspension bridge from shaking according to claim 1 is characterized in that: A second mounting hole (41) is provided at the root of the rack of the second comb tooth plate (4), and third mounting holes (42) are spaced apart along the length direction on the rack of the second comb tooth plate (4); the second supporting member (7) is a fixed base plate located below the second comb tooth plate (4), and a fourth mounting hole (71) corresponding to the second mounting hole (41) and a fifth mounting hole (72) corresponding to the third mounting hole (42) are provided on the fixed base plate; a third bolt (83) passes through the second mounting hole (41) and the fourth mounting hole (71) in sequence from top to bottom so that the second comb tooth plate (4) can rotate horizontally relative to the fixed base plate around the third bolt (83); the fifth mounting hole (72) is a waist-shaped through hole; the fourth bolt (84) passes through the third mounting hole (42) and the fifth mounting hole (72) in sequence from top to bottom, and the length direction of the waist-shaped through hole is consistent with the width direction of the bridge.

4. The telescopic device for preventing suspension bridge from shaking according to claim 1 is characterized in that: A transverse movable gap is left between the first comb tooth plate (3) and the second comb tooth plate (4).

5. The telescopic device for preventing suspension bridge from swaying according to any one of claims 1 to 4, characterized in that: The first comb plate (3) is a movable comb plate arranged across the expansion joint (5), and the second comb plate (4) is a fixed comb plate.

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