•  
  •  
 

Abstract

The vertical bearing capacity of the 16# pier of Pingtang Bridge is 10 000 kN, and the horizontal bearing capacity along the bridge is 12 000 kN, which is 120% of the vertical bearing capacity. The support angle needs to reach the technical parameter requirements of 0.05 rad, which far exceeds the requirements of 10–40% horizontal force of conventional highway supports. According to the specific engineering situation, a new type of support with a large horizontal bearing capacity was designed. Firstly, the finite element model of the support was established to analyze the mechanical properties of the support, and the performance of the support and the durability of the support material were tested. The results show that there is no obvious stress concentration phenomenon in the new support, and the influence of the longitudinal angle on the stress of each component is greater than that of the transverse angle. The design of the curved rotating sleeve structure of the support can ensure that the horizontal force follows a plane-to-plane transfer. The scale test results of the support meet the requirements of the corresponding specifications, and the support can meet the strength requirements under the limit working conditions without stress damage. The use of an S-Lide wear-resistant sliding block and high-durability anti-corrosion system design can greatly improve the sliding resistance and anti-corrosion of the support.

Publication Date

3-17-2023

DOI

10.14048/j.issn.1671-2579.2023.01.019

First Page

114

Last Page

118

Submission Date

March 2025

Download

Share

COinS