Non-interruption traffic bridge splicing differential settlement prevention device

Abstract

The utility model discloses a non-interruption traffic bridge splicing differential settlement prevention device in the technical field of bridge construction, which comprises a splicing width bridge pier, an old bridge pier is arranged on one side of the splicing width bridge pier, a connecting component force plate is connected between the splicing width bridge pier and the old bridge pier, and a web plate is mounted at the top of the connecting component force plate. The upper end of the outer side of the old bridge pier is sleeved with a hoop, the two ends of the web are connected with the widening bridge pier and the hoop respectively, and a plurality of L-shaped anchoring steel bars are embedded in the upper end of the interior of the widening bridge pier. Through the matching arrangement of the connecting component force plates, the L-shaped anchoring steel bars, the web plates and the hoops, synchronous fixation and uniform load distribution of the wide bridge piers and the old bridge piers are achieved, damage to bridge splicing seams caused by differential settlement is effectively prevented, the splicing seams can better bear and disperse loads, the overall bearing capacity is improved, and the service life of the bridge is prolonged. And the traffic safety and comfort of the bridge during operation are ensured, so that the service life and the maintenance period of the bridge are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a device for preventing uneven settlement of bridge splicing without interrupting traffic. Background Art

[0002] With the rapid development of social economy, modern people have higher and higher demands for transportation. The country has strongly supported highway transportation construction, and highway transportation has developed rapidly. my country's highway mileage is already among the best in the world. Highway construction requires the construction of bridge pile foundations. Among them, "soft foundation sections" are often encountered during highway paving. "Soft foundation sections" are sections with relatively deep underground silt layers and uneven distribution. The geological settlement in different parts varies, resulting in road cracking. In response to this currently difficult technical problem, the bridge pile foundation will cause the problem of bridge pile foundation settlement with long-term use or vehicle overload. In addition, some of the bridge pile foundations appearing in soft foundation sections are prone to deformation, cracking or even breakage. It is very dangerous for cars to drive at high speeds, which will bring life safety hazards to drivers.

[0003] Patent announcement number CN215977424U discloses a highway bridge pile foundation anti-settlement device, including a pile foundation and a fixed plate; the fixed plate is composed of two splicing plates arranged symmetrically on the left and right, and the two splicing plates are detachably connected through multiple groups of fixing components A. Both splicing plates are provided with semicircular holes, and the two semicircular holes are combined to form a circular hole for the pile foundation to pass through. A casting ring is provided on the fixed plate, and the casting ring is composed of two semicircular rings fixedly provided on the splicing plates on both sides. A plurality of casting steel bars A are provided on the inner side surface of the casting ring, and a plurality of casting steel bars B are provided on the side surface of the lower part of the pile foundation; a measuring rod is vertically provided on one side of the fixed plate, and a scale is provided on the measuring rod, a fixing frame is provided on the fixing plate, and an indicator ring is provided on the fixing frame, and the indicator ring is sleeved on the measuring rod. The utility model has stable installation, good anti-settlement effect, and is convenient for operators to observe the settlement value of the pile foundation. However, the above patent still has some shortcomings during use. When the pile foundation settles, the load distribution of the piers of the new and old bridges is uneven, which causes the pile foundation to settle unevenly. The uneven settlement will damage the bridge joints, thereby reducing the overall bearing capacity of the bridge. Utility Model Content

[0004] In order to improve the problem mentioned above that when pile foundations settle, the load distribution on the piers of the new and old bridges is uneven, resulting in uneven settlement of the pile foundations. The uneven settlement will damage the bridge joints, thereby reducing the overall bearing capacity of the bridge. The utility model provides a device for preventing uneven settlement of bridge splicing without interrupting traffic.

[0005] The utility model provides a device for preventing uneven settlement of bridge splicing without interrupting traffic, which adopts the following technical solutions:

[0006] A device for preventing uneven settlement of bridge splicing without interrupting traffic comprises a widened bridge pier, an old bridge pier is arranged on one side of the widened bridge pier, a connecting force component plate is connected between the widened bridge pier and the old bridge pier, a web is installed on the top of the connecting force component plate, a hoop is provided on the upper end of the outer side of the old bridge pier, the two ends of the web are respectively connected to the widened bridge pier and the hoop, and a plurality of L-shaped anchor steel bars are pre-embedded at the upper end inside the widened bridge pier.

[0007] By adopting the above technical solution, through the coordinated setting of connecting force plates, L-shaped anchor steel bars, webs and hoops, the synchronous fixation and uniform load distribution of the piers of the widened bridge and the old bridge are achieved, which effectively reduces the settlement differences caused by foundation differences or uneven loads, enables the joints to better bear and disperse the load, improves the overall bearing capacity, ensures the traffic safety and comfort of the bridge during operation, and thus extends the service life and maintenance cycle of the bridge.

[0008] Optionally, the vertical portion of the L-shaped anchor steel bar extends into the concrete inside the pier of the widened bridge, and the horizontal portion of the L-shaped anchor steel bar is welded to the connecting force plate.

[0009] By adopting the above technical solution, the L-shaped anchor steel bars are made stronger during the embedding process.

[0010] Optionally, the number of the L-shaped anchor steel bars is set to 9, and the 9 L-shaped anchor steel bars are arranged in a circular shape about the center of the widened bridge pier.

[0011] By adopting the above technical solution, the anchoring force is ensured to be evenly distributed.

[0012] Optionally, a sand and gravel layer is provided at the bottom of the connecting force component plate.

[0013] By adopting the above technical solution, the compressibility of the surface soil can be reduced and the bearing capacity and anti-settlement ability of the foundation can be improved.

[0014] Optionally, a plurality of reinforcing ribs are connected to the front and rear sides of the web, and the bottoms of the plurality of reinforcing ribs are welded to the top of the connecting force component plate.

[0015] By adopting the above technical solution, the rigidity and stability of the connecting force plates can be improved.

[0016] Optionally, the plurality of reinforcing ribs are arranged symmetrically in pairs with respect to the web.

[0017] By adopting the above technical solution, the vertical and horizontal loads between the piers of the widened bridge and the piers of the old bridge can be transferred and dispersed to ensure uniform load distribution.

[0018] In summary, the present invention has at least one of the following beneficial effects:

[0019] By connecting the force plates, L-shaped anchor steel bars, webs and hoops, the piers of the widened bridge and the old bridge are synchronously fixed and the load is evenly distributed, effectively preventing the damage to the bridge joints caused by uneven settlement, so that the joints can better bear and disperse the load, improve the overall bearing capacity, ensure the traffic safety and comfort of the bridge during operation, and thus extend the service life and maintenance cycle of the bridge.

[0020] Through the mutual cooperation of several reinforcing ribs and webs, the stiffness and stability of the connecting force plates can be improved, and the vertical and horizontal loads between the piers of the widened bridge and the piers of the old bridge can be transferred and dispersed to ensure uniform load distribution. By setting up a sand and gravel layer, the compressibility of the surface soil can be reduced, further improving the bearing capacity and anti-settlement ability of the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the top view of the connecting force component plate of the present invention.

[0024] In the figure: 1. Piers of the widened bridge; 2. Piers of the old bridge; 3. Connecting force plates; 4. L-shaped anchor bars; 5. Webs; 6. Reinforcing ribs; 7. Hoops; 8. Sand and gravel layer. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-2 The utility model is described in further detail.

[0026] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2The present invention provides an embodiment of a bridge splicing device for preventing uneven settlement without interrupting traffic, comprising a bridge pier 1 for widening the bridge, with an old bridge pier 2 positioned on one side thereof, a connecting force component plate 3 connecting the widening bridge pier 1 and the old bridge pier 2, and a gravel layer 8 disposed at the bottom of the connecting force component plate 3. This reduces the compressibility of the topsoil and improves the bearing capacity and anti-settlement capability of the foundation.

[0027] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 A web 5 is mounted on the top of the connecting force distribution plate 3. Several reinforcing ribs 6 are connected to the front and rear sides of the web 5. The bottoms of the ribs 6 are welded to the top of the connecting force distribution plate 3. This improves the rigidity and stability of the connecting force distribution plate 3. The ribs 6 are arranged symmetrically with respect to the web 5. This ensures that the vertical and horizontal loads between the widened bridge pier 1 and the old bridge pier 2 are evenly distributed.

[0028] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 The upper end of the outer side of the old bridge pier 2 is fitted with a clamp 7. The ends of the web 5 are connected to the widened bridge pier 1 and the clamp 7, respectively. Several L-shaped anchor bars 4 are pre-embedded in the upper end of the widened bridge pier 1. The vertical portion of the L-shaped anchor bar 4 extends into the concrete inside the widened bridge pier 1, and the horizontal portion of the L-shaped anchor bar 4 is welded to the connecting force plate 3. This makes the L-shaped anchor bar 4 more secure during the pre-embedding process. There are nine L-shaped anchor bars 4, arranged in a circular pattern around the center of the widened bridge pier 1, ensuring even distribution of anchoring force.

[0029] Working principle: When in use, the clamp 7 is sleeved on the outside of the old bridge pier 2 by bolts, and the connecting force plate 3 and the web 5 are connected to the clamp 7. At the same time, the widened bridge pier 1 is connected to the connecting force plate 3 through a number of L-shaped anchor steel bars 4, so that the widened bridge pier 1 and the old bridge pier 2 can be fixed synchronously, so that the vertical and horizontal loads between the widened bridge pier 1 and the old bridge pier 2 can be transmitted and dispersed through the connecting force plate 3, ensuring uniform load distribution and effectively reducing the settlement difference caused by foundation difference or uneven load. The damage to the splicing seams enables the splicing seams to better bear and disperse the load, improves the overall bearing capacity, and ensures traffic safety and comfort during the operation of the bridge. In addition, several reinforcing ribs 6 are symmetrically distributed on the front and rear sides of the web 5, and at the same time, several reinforcing ribs 6 are welded to the connecting force component plates 3, thereby improving the stiffness and stability of the connecting force component plates 3, further enhancing the integrity of the structure, and through the provision of the sand and gravel layer 8, reducing the compressibility of the surface soil, further improving the bearing capacity and anti-settlement ability of the foundation.

[0030] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for preventing uneven settlement of bridges without interrupting traffic, comprising a bridge pier (1) for splicing a widened bridge, an old bridge pier (2) being arranged on one side of the bridge pier (1), and characterized in that: A connecting force component plate (3) is connected between the widened bridge pier (1) and the old bridge pier (2); a web (5) is installed on the top of the connecting force component plate (3); a hoop (7) is sleeved on the upper end of the outer side of the old bridge pier (2); the two ends of the web (5) are respectively connected to the widened bridge pier (1) and the hoop (7); and a plurality of L-shaped anchoring steel bars (4) are pre-embedded at the upper end inside the widened bridge pier (1).

2. The device for preventing uneven settlement of bridge splicing without interrupting traffic according to claim 1 is characterized in that: The vertical portion of the L-shaped anchoring steel bar (4) extends into the concrete inside the widened bridge pier (1), and the horizontal portion of the L-shaped anchoring steel bar (4) is welded to the connecting force component plate (3).

3. The device for preventing uneven settlement of bridge splicing without interrupting traffic according to claim 1 is characterized in that: The number of the L-shaped anchoring steel bars (4) is set to 9, and the 9 L-shaped anchoring steel bars (4) are arranged in a circular shape about the center of the widened bridge pier (1).

4. The device for preventing uneven settlement of bridge splicing without interrupting traffic according to claim 1 is characterized in that: A sand and gravel layer (8) is provided at the bottom of the connecting force component plate (3).

5. The device for preventing uneven settlement of bridge splicing without interrupting traffic according to claim 1 is characterized in that: A plurality of reinforcing ribs (6) are connected to the front and rear sides of the web (5), and the bottoms of the plurality of reinforcing ribs (6) are welded to the top of the connecting force component plate (3).

6. The device for preventing uneven settlement of bridge splicing without interrupting traffic according to claim 5, characterized in that: The plurality of reinforcing ribs (6) are arranged symmetrically in pairs with respect to the web (5).

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