Anti-collision energy-absorbing structure based on conventional concrete material
By using multiple layers of concrete columns of different heights and foam boards combined with steel plate layers in the bridge anti-collision structure, the problems of large volume and poor durability of traditional anti-collision structures are solved, and efficient energy absorption effect is achieved, which significantly improves the The impact absorption capacity of the bridge.
Patent Information
- Application Number
- CN202421002368.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The anti-collision structure of traditional bridges has large volume, poor durability and low energy consumption efficiency, making it difficult to effectively reduce the damage to the structure and vehicle caused by vehicle collision pier accidents.
Adopt anti-collision energy-absorbing structure based on conventional concrete materials, including concrete columns and steel plate layers. The concrete columns are composed of multiple concrete columns of different heights. Foam plates are installed between adjacent column layers, and the steel plate layer is wrapped on the outside to form a grid. Gate-type structure to improve energy consumption.
Achieves the anti-collision effect with simple structure, low cost and high energy consumption efficiency. By staggering the stress and strain and the buffering effect of the foam board, the peak stress to the average stress ratio is close to 1, extending the energy consumption time of the structure, and significantly improving the energy absorption performance.
Smart Images
Figure CN222313776U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-collision energy absorption structure based on conventional concrete materials. Background Art
[0002] In recent years, accidents involving vehicles (ships) colliding with bridge piers have occurred frequently, seriously threatening the safety of bridge structures, vehicles and personnel. Generally, anti-collision structures are set up to protect bridges and vehicles. Traditional bridge anti-collision structures mostly use anti-collision piers, steel casings, foam cushioning materials and other measures to reduce the damage caused by impact loads to bridge piers. Taking steel casings as an example, this type of anti-collision structure is large in size, poor in durability, difficult to install and repair, and has low energy efficiency. Summary of the invention
[0003] In order to solve the above technical problems, the utility model provides an anti-collision energy absorption structure based on conventional concrete materials, which has a simple structure, low cost, good energy absorption effect and can reduce the damage caused by impact to the structure.
[0004] The technical solution adopted by the utility model is: an anti-collision energy absorption structure based on conventional concrete materials, including a concrete column and a steel plate layer, the steel plate layer is wrapped on the outer wall of the concrete column; the cross-section of the concrete column is square, and the concrete column includes a plurality of concrete column layers; each concrete column layer is built up by a plurality of concrete columns, and a foam board is arranged between two adjacent concrete columns; the heights of the concrete columns in each concrete column layer are equal, and the height of the outer layer in two adjacent concrete column layers is higher than the height of the inner layer; a foam board is arranged between two adjacent concrete column layers.
[0005] Furthermore, the cross-section of the concrete column is a square.
[0006] Furthermore, the concrete column includes four concrete column layers.
[0007] Furthermore, the steel plate layer is made of stainless steel plate.
[0008] Furthermore, the heights of the concrete column layers from the outside to the inside are an arithmetic progression.
[0009] Compared with the prior art, the beneficial effects of the utility model are:
[0010] The utility model has a simple structure, is mainly made of concrete, and has a low manufacturing cost. The concrete column is composed of multiple layers of concrete columns of different heights, and the adjacent concrete columns on both sides are separated by foam boards. The outer side of the concrete column is wrapped with a steel plate layer, and the two together form a grid type; the foam board has certain buffering energy dissipation characteristics; due to the height difference between the adjacent concrete columns on both sides, during the impact load, the structure will stagger the generation of stress and strain in time, and finally make the ratio of peak stress to average stress close to 1, so that the energy dissipation of the overall structure is better close to the ductile structure, and the energy dissipation of the foam board is superimposed, so that the utility model has a better energy dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a top view of the utility model.
[0012] Figure 2 yes Figure 1 Middle II sectional view. DETAILED DESCRIPTION
[0013] The utility model is further described below in conjunction with the accompanying drawings.
[0014] like Figure 1-2 As shown, the utility model includes a concrete column and a steel plate layer 1, and the steel plate layer 1 is wrapped on the outer wall of the concrete column. The cross-section of the concrete column is square, and the concrete column includes four concrete column layers 3 (the number of concrete column layers 3 is not limited to 4, and can be 2-3, or more than 4). Each concrete column layer 3 is built up by a plurality of concrete columns 4, and a foam board 2 is arranged between two adjacent concrete columns 4; the height of the concrete columns 4 in each concrete column layer 3 is equal, and the height of the outer layer in two adjacent concrete column layers 3 is higher than the height of the inner layer; a foam board 2 is arranged between the adjacent concrete columns on both sides. The height of the concrete column layer 3 from the outside to the inside is an arithmetic progression.
[0015] When the utility model is in use, the panel located at the bottom is fixed on the bridge pier, and the panel is arranged horizontally. Figure 2As shown, the outermost concrete column layer 3 is first subjected to the impact load. Under the impact load, the outermost concrete column layer 3 is deformed, and its stress-strain relationship is linear. As the impact load continues to increase, the stress of the highest concrete column layer 3 reaches a peak value. At this time, the second layer of concrete column layer 3 begins to be stressed, strained, and then consumes energy. At the same time, the stress of the second layer of concrete column layer 3 increases and reaches a peak value. This cycle continues until the innermost concrete column layer 3 is crushed. In addition, concrete column layers 3 of different heights are separated by foam boards 2 with certain buffering energy dissipation characteristics. When the concrete column layer 3 is axially stressed and lateral deformation occurs, the foam board is deformed and consumes energy under the action of lateral extrusion of concrete. Due to the different height differences between concrete, during the impact load, the structure will stagger the generation of stress and strain in time, and finally make the ratio of peak stress to average stress close to 1, so that the energy consumption of the overall structure is better close to the ductile structure, and then the energy consumption of the foam board is superimposed, so that the structure has a better energy consumption effect.
Claims
1. An anti-collision energy absorption structure based on conventional concrete materials, comprising a concrete column and a steel plate layer, characterized in that: The steel plate layer is wrapped on the outer wall of the concrete column; the cross-section of the concrete column is square, and the concrete column includes multiple concrete column layers; each concrete column layer is built up by multiple concrete columns, and a foam board is arranged between two adjacent concrete columns; the heights of the concrete columns in each concrete column layer are equal, and the height of the outer layer in two adjacent concrete column layers is higher than the height of the inner layer; a foam board is arranged between two adjacent concrete column layers.
2. The anti-collision energy absorption structure based on conventional concrete material according to claim 1 is characterized in that: The cross section of the concrete column is a square.
3. The anti-collision energy absorption structure based on conventional concrete material according to claim 1 is characterized in that: The concrete column body comprises four concrete column layers.
4. The anti-collision energy absorption structure based on conventional concrete material according to claim 1 is characterized in that: The steel plate layer is made of stainless steel plate.
5. The anti-collision energy absorption structure based on conventional concrete material according to claim 1 is characterized in that: The height of the concrete column layers from the outside to the inside is an arithmetic progression.