Anti-collision structure of pier column

Abstract

The utility model relates to the technical field of bridge engineering, and discloses an anti-collision structure of a pier column, which comprises a rubber concrete layer, a first restraining component, a second restraining component, a first connecting piece and a second connecting piece, the pile foundation concrete layers are evenly distributed below the rubber concrete layer, second restraining assemblies are arranged in the pile foundation concrete layers, steel pipes are arranged in the second restraining assemblies, the height of the steel pipes is larger than that of the second restraining assemblies, the steel pipes correspond to the reserved holes, and the reserved holes are formed in the pile foundation concrete layers. And the rigid pipe is inserted into the preformed hole. The pile foundation concrete layer is poured below the rubber concrete layer, so that the purpose of transmitting impact load borne by rubber concrete to a harder, denser or smaller-compressibility foundation bearing layer is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, and more specifically, particularly to an anti-collision structure of a pier column. Background Art

[0002] In the prior art, traditional anti-collision measures for bridge piers are mostly adopted by outsourcing concrete, outsourcing steel plates, adding buffers, impact-resistant cushions and new buffering and energy-absorbing materials to enhance the anti-collision and energy-absorbing characteristics of the piers. However, the use of new buffering and energy-absorbing materials greatly increases the construction cost of the piers. At the same time, since the new buffering and energy-absorbing materials need to be specially customized, they are subject to certain restrictions in the construction of bridge piers. The technical improvement for the above technical problems is mainly to add rubber to concrete or use rubber mixture for separate filling, which not only reduces the construction cost of the bridge piers, but also improves the anti-collision and energy-absorbing characteristics of the bridge piers.

[0003] The patent with publication number CN104405084B discloses a double steel tube concrete seismic column with a built-in rubber mixture, which specifically discloses an outer steel tube, an inner steel tube, a sandwich concrete and a rubber mixture. The inner and outer steel tubes are fixed by welding or bolting, wherein the sandwich concrete is located in the middle of the double steel tube, and the rubber mixture is filled in the inner steel tube. The sandwich concrete is self-compacting concrete. The device has certain impact resistance, but the impact force acts directly on the rubber mixture and is absorbed by the rubber mixture, and cannot play a transmission role, causing serious damage to the rubber mixture.

[0004] Therefore, how to enable the anti-collision structure of the pier to transfer the impact load borne by the rubber concrete to the harder, denser or less compressible foundation bearing layer has become a problem that needs to be solved. Utility Model Content

[0005] The utility model aims to provide an anti-collision structure for a pier column to solve the problems existing in the prior art, and achieves the purpose of transferring the impact load borne by the rubber concrete to a harder, denser or less compressible foundation bearing layer by pouring a pile foundation concrete layer under the rubber concrete layer.

[0006] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model provides an anti-collision structure of a pier column, including: a rubber concrete layer, the rubber concrete layer is provided with reserved holes, and a first constraint component is provided in the rubber concrete layer; a pile foundation concrete layer, the pile foundation concrete layer is provided with a plurality of holes, which are evenly distributed below the rubber concrete layer, a second constraint component is provided in the pile foundation concrete layer, a steel pipe is provided in the second constraint component, the height of the steel pipe is higher than the second constraint component, the steel pipe corresponds to the reserved hole, and the steel pipe is inserted into the reserved hole.

[0007] Furthermore, the second constraint component includes a plurality of fifth steel bars and a plurality of sixth steel bars, wherein the plurality of fifth steel bars are vertically arranged and constitute a fifth steel bar layer, and the plurality of sixth steel bars are spirally arranged and constitute a sixth steel bar layer, and the sixth steel bar layer is located outside the fifth steel bar layer.

[0008] Furthermore, the steel pipe is located within the fifth and sixth steel bar layers, and the steel pipe is higher than the fifth and sixth steel bar layers.

[0009] Furthermore, the first constraint component includes a plurality of third steel bars and a plurality of fourth steel bars, wherein the plurality of third steel bars are vertically arranged and constitute a third steel bar layer, and the plurality of fourth steel bars are spirally arranged and constitute a fourth steel bar layer, and the fourth steel bar layer is located outside the third steel bar layer.

[0010] Furthermore, it also includes a core concrete layer, which is located inside the rubber concrete layer, and a plurality of first steel bars and a plurality of second steel bars are arranged in the core concrete layer.

[0011] Furthermore, a plurality of first steel bars are arranged in a spiral shape to form a first steel bar layer, a plurality of second steel bars are arranged in a vertical shape to form a second steel bar layer, and the first steel bar layer is located outside the second steel bar layer.

[0012] Furthermore, the rubber concrete layer is a hollow cylindrical single-layer prefabricated component with openings at both ends.

[0013] The utility model discloses the following technical effects:

[0014] In the device, a reserved hole is arranged in the rubber concrete layer, and a steel pipe is arranged in the pile foundation concrete layer. The reserved hole and the steel pipe are arranged to realize the quick connection between the pile foundation concrete layer and the rubber concrete layer, thereby accelerating the construction speed. Meanwhile, a plurality of pile foundation concrete layers are evenly connected below the rubber concrete layer, so that the impact load borne by the rubber concrete can be transferred to a harder, denser or less compressible foundation bearing layer, thereby reducing the deformation damage to the pier column. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a top cross-sectional view of the utility model;

[0017] Figure 2 It is a top view cross-sectional view of the rubber concrete and pile foundation in the utility model;

[0018] Figure 3 It is a front cross-sectional view of the utility model as a whole;

[0019] Figure 4 It is a detailed structural diagram of the rubber concrete and pile foundation in the utility model;

[0020] Figure 5 It is a schematic diagram of the overall structure of the utility model;

[0021] Among them, 1. core concrete layer; 2. first steel bar; 3. second steel bar; 4. rubber concrete layer; 5. third steel bar; 6. fourth steel bar; 7. steel pipe; 8. fifth steel bar; 9. sixth steel bar; 10. pile foundation concrete layer; 11. reserved holes. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-Figure 5 As shown, the utility model provides an anti-collision structure of a pier column, comprising a core concrete layer 1, a rubber concrete layer 4 and a pile foundation concrete layer 10, and a first constraint component arranged in the rubber concrete layer 4 and a second constraint component in the pile foundation concrete layer 10, wherein the rubber concrete layer 4 is arranged on the outside of the core concrete layer 1, and the pile foundation concrete layer 10 is arranged below the rubber concrete layer 4, the core concrete layer 1 is the pier column body, the core concrete layer 1 is a cylindrical or rectangular shape, and the height of the core concrete layer 1 is higher than the rubber concrete layer 4.

[0025] A first constraint component is arranged in the rubber concrete layer 4, and the first constraint component includes a plurality of third steel bars 5 and a plurality of fourth steel bars 6. The plurality of third steel bars 5 are arranged in a vertical direction, and a plurality of third steel bars 5 in the vertical direction constitute a third steel bar 5 layer. The plurality of fourth steel bars 6 are arranged in a spiral manner, and a plurality of spirally arranged fourth steel bars 6 constitute a fourth steel bar 6 layer. The fourth steel bar 6 layer is arranged outside the third steel bar 5 layer. The third steel bar 5 layer and the fourth steel bar 6 layer provide longitudinal and axial constraints for the rubber concrete, further improve the ability of the pier body to withstand longitudinal force and axial pressure, and further enhance the impact resistance of the pier body.

[0026] The rubber concrete layer 4 is a hollow cylindrical structure with openings at both ends, and a reserved hole 11 is provided in the rubber concrete layer 4 .

[0027] A second constraint assembly is arranged in the pile foundation concrete layer 10, and the second constraint assembly includes a plurality of fifth steel bars 8 and a plurality of sixth steel bars 9, wherein the plurality of fifth steel bars 8 are arranged vertically, and the plurality of fifth steel bars 8 arranged vertically constitute a fifth steel bar 8 layer, and the plurality of sixth steel bars 9 are arranged spirally, and the plurality of sixth steel bars 9 arranged spirally constitute a sixth steel bar 9 layer, and the sixth steel bar 9 layer is located outside the fifth steel bar 8 layer. The fifth steel bar 8 layer and the sixth steel bar 9 layer provide longitudinal and axial constraints for the pile foundation concrete layer 10, making the pile foundation concrete layer 10 more stable.

[0028] Steel pipes 7 are arranged in the fifth steel bar layer 8 and the sixth steel bar layer 9. The height of the steel pipes 7 is higher than the fifth steel bar layer 8 and the sixth steel bar layer 9, and higher than the ground. The steel pipes 7 correspond to the reserved holes 11 in the rubber concrete layer 4. The steel pipes 7 are inserted into the reserved holes 11, and the reserved holes 11 are grouting-cured to achieve the connection between the rubber concrete layer 4 and the pile foundation concrete layer 10.

[0029] A plurality of first steel bars 2 and a plurality of second steel bars 3 are arranged in the core concrete layer 1. The plurality of first steel bars 2 are arranged in a spiral manner, and the plurality of spirally arranged first steel bars 2 constitute the first steel bar 2 layer. The plurality of second steel bars 3 are arranged vertically, and the plurality of vertically arranged second steel bars 3 constitute the second steel bar 3 layer. The first steel bar 2 layer is located outside the second steel bar 3 layer. The first steel bar 2 layer and the second steel bar 3 layer exert longitudinal and axial constraints on the core concrete layer 1, making the core concrete layer 1 more stable.

[0030] In this embodiment, when a collision accident occurs on the core concrete layer 1, the rubber concrete layer 4 plays a buffering role in the collision of the vehicle during the collision, and transmits the impact force to the soil layer through the pile foundation concrete layer 10, absorbing and reducing the impact force of the core concrete layer 1, and protecting the safety of the vehicle and the bridge pier. In this device, the rubber concrete layer 4 is provided with a third steel bar 5 layer and a fourth steel bar 6 layer, which further improves the ability of the core concrete layer 1 to withstand longitudinal force and axial pressure, and further strengthens the anti-collision ability of the core concrete layer 1. The rubber concrete layer 4 is set to a hollow cylindrical form with two ends, which can improve the brittleness and anti-collision ability of the concrete. The rubber concrete layer 4 is connected to the pile foundation concrete layer 10 through a steel pipe 7 to achieve the transmission of the impact force on the pile foundation concrete to a harder, denser or less compressible foundation bearing layer.

[0031] Working principle: Use a rotary drill on the soil layer to dig holes in the pile foundation mixed soil layer, lay out the fifth steel bar 8 layer and the sixth steel bar 9 layer in the hole, that is, place several fifth steel bars 8 and sixth steel bars 9 in the hole, put steel pipe 7 in the fifth steel bar 8 layer and the sixth steel bar 9 layer, and expose the steel pipe 7 to a proper distance from the ground, grouting in the hole to form pile foundation concrete and curing, prefabricate the rubber concrete layer 4 in advance, make a reserved hole 11 on the rubber concrete layer 4, insert the steel pipe 7 into the reserved hole 11, grouting and curing the reserved hole 11, and complete the installation of the rubber concrete layer 4.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A pier anti-collision structure, It is characterized in that include: A rubber concrete layer (4), wherein a reserved hole (11) is provided on the rubber concrete layer (4), and a first restraining component is provided in the rubber concrete layer (4); A pile foundation concrete layer (10), wherein the pile foundation concrete layer (10) is provided with a plurality of layers, which are evenly distributed below the rubber concrete layer (4), wherein a second constraint component is provided in the pile foundation concrete layer (10), wherein a steel pipe (7) is provided in the second constraint component, wherein the height of the steel pipe (7) is higher than that of the second constraint component, wherein the steel pipe (7) corresponds to the reserved hole (11), and wherein the steel pipe (7) is inserted into the reserved hole (11).

2. The anti-collision structure of the pier according to claim 1, Features: The second restraining component comprises a plurality of fifth steel bars (8) and a plurality of sixth steel bars (9), wherein the plurality of fifth steel bars (8) are arranged vertically and constitute a fifth steel bar (8) layer, and the plurality of sixth steel bars (9) are arranged spirally and constitute a sixth steel bar (9) layer, and the sixth steel bar (9) layer is located outside the fifth steel bar (8) layer.

3. The anti-collision structure of the pier according to claim 2, Features: The steel pipe (7) is located within the fifth steel bar (8) layer and the sixth steel bar (9) layer, and the steel pipe (7) is higher than the fifth steel bar (8) layer and the sixth steel bar (9) layer.

4. The anti-collision structure of the pier column according to claim 1, Features: The first constraint component comprises a plurality of third steel bars (5) and a plurality of fourth steel bars (6), wherein the plurality of third steel bars (5) are arranged vertically and constitute a third steel bar (5) layer, and the plurality of fourth steel bars (6) are arranged spirally and constitute a fourth steel bar (6) layer, and the fourth steel bar (6) layer is located outside the third steel bar (5) layer.

5. The anti-collision structure of the pier according to claim 1, Features: It also comprises a core concrete layer (1), wherein the core concrete layer (1) is located inside the rubber concrete layer (4), and a plurality of first steel bars (2) and a plurality of second steel bars (3) are arranged inside the core concrete layer (1).

6. The anti-collision structure of the pier according to claim 5, Features: A plurality of first steel bars (2) are arranged in a spiral shape and form a first steel bar (2) layer, a plurality of second steel bars (3) are arranged vertically and form a second steel bar (3) layer, and the first steel bar (2) layer is located outside the second steel bar (3) layer.

7. The anti-collision structure of the pier according to claim 1, Features: The rubber concrete layer (4) is a hollow cylindrical single-layer prefabricated component with openings at both ends.

Images