Pier anti-collision device with grading and multi-defense-line protection functions
A technology of anti-collision devices and bridge piers, which is applied in road safety devices, roads, bridges, etc., can solve the problems of not considering the vehicle protection effect and the low utilization rate of the sandwich layer of the flexible sandwich structure, so as to achieve effective protection and reduce the impact force , the effect of improving the utilization rate
Pending Publication Date: 2021-04-23
BEIJING UNIV OF TECH
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of this invention is to propose a bridge pier anti-collision device that takes into account protection, economy and environmental protection, which combines the advantages of traditional rigid anti-collision devices and flexible sandwich anti-collision devices, realizes classification of accidental impacts, and uses multiple lines of defense for protection , to solve the technical problems that the traditional rigid anti-collision device does not consider the vehicle protection effect and the low utilization rate of the sandwich layer of the flexible sandwich structure
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] In order to enable those skilled in the art to better understand the technical solutions in the present description, the technical solutions in the embodiments of the present description will be clearly and completely described below in conjunction with specific embodiments and accompanying drawings.
[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] In the above scheme, the pier anti-collision device with classification and multi-line defense can be designed, manufactured and installed according to the following steps:
[0027] Step 1: According to the cross-sectional size of the pier and the application conditions, select the appropriate thickness of rubber recycled concrete slab, rubber content, replacement rate of recycled aggregate; density of rubber foam concrete, rubber content; thickness of inner anti-collision steel plate and The height and radian of the speci...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a pier anti-collision device with grading and multi-defense-line protection functions, and belongs to the technical field of bridge collision protection. The device specifically comprises an inner-layer anti-collision steel plate, a rubber foam concrete filled buffer energy-absorbing sandwich layer, an outer-layer prefabricated rubber recycled concrete plate, connecting pieces and high-strength bolts. The device integrates the advantages of a traditional rigid anti-collision device and the advantages of a flexible sandwich anti-collision device, and the technical problems that the traditional rigid anti-collision device is poor in energy absorption and protection effect, and the utilization rate of a sandwich layer of a flexible sandwich structure is low are solved. The device has the advantages that impact can be graded, and multi-defense-line protection is achieved. Besides, the device uses a large amount of solid waste materials such as waste rubber and recycled concrete, adopts a prefabricated construction and installation method, is a pier anti-collision device with the advantages of protection, economy, environmental protection and the like, and has good application prospects and economic benefits.
Description
technical field [0001] The invention belongs to the technical field of bridge impact protection, and specifically relates to an anti-collision steel plate in the inner layer, a rubber foam concrete filled buffer and energy-absorbing sandwich layer, a prefabricated rubber recycled concrete plate in the outer layer, connectors and high-strength bolts. And pier anti-collision device with multi-line defense protection. Background technique [0002] With the continuous advancement of my country's urbanization, on the one hand, the total amount of demolished construction waste has increased exponentially, which has caused great harm to our country's environment. In order to solve this problem, the recycling of construction waste has become a research hotspot for scholars at home and abroad in recent years. For example, recycling methods such as breaking waste concrete blocks into coarse aggregates to make recycled concrete have brought huge economic benefits to our country. and s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): E01D19/02E01F15/14
CPCE01D19/02E01F15/145
Inventor 周宏元周后湛王小娟崔浩儒
Owner BEIJING UNIV OF TECH