基于有限元法的高抗剪支座-梁体连接体系强度分析  

Strength Analysis of High-Shear-Resistant Bearing-Girder Connection System Based on Finite Element Method

作　　者：张笑笑 吴承格 ZHANG Xiaoxiao;WU Chengge(School of Construction Machinery,Shandong Jiaotong University,Jinan,Shandong 250357,China)

机构地区：[1]山东交通学院工程机械学院,山东济南250357

出　　处：《自动化应用》2025年第7期303-306,共4页Automation Application

摘　　要：在地震作用下,由于高速铁路桥梁中支座与梁体间的螺栓连接易发生剪切破坏的问题,提出了3种新型高抗剪支座-梁体连接体系。针对3种新型高抗剪支座-梁体连接体系,采用有限元分析的方法,利用Abaqus软件对3种支座-梁体连接体系进行了静力学分析。结果表明,体系一与体系三的各部件最大应力值介于94.61~496.4 MPa之间,均未超出材料的屈服强度,证明这两种体系在抗剪性能和抗震能力方面表现优异;体系二在竖直向上的地震加速度作用下,预埋件的最大应力为259.6 MPa,高于预埋件材料Q235的屈服强度,但在整体性能上仍表现出了良好的抗剪能力。3种新型高抗剪连接体系均满足抗震设计要求,可为相关工作提供一定参考。Under seismic action,the bolt connections between bridge bearings and girders in high-speed railway bridges are prone to shear failure.To address this issue,three new types of high-shear-resistant bearing-girder connection systems were proposed.This study employed finite element analysis using Abaqus software to conduct static analysis on these three connection systems.The results indicate that the maximum stress values of the components in System 1 and System 3 range between 94.61 MPa and 496.4 MPa,none of which exceed the material yield strength,demonstrating excellent shear resistance and seismic performance.For System 2,under upward seismic acceleration,the maximum stress of the embedded parts is 259.6 MPa,which exceeds the yield strength of the Q235 material used for the embedded parts,but it still exhibits good shear resistance.All three new high-shear-resistant connection systems meet the seismic design requirements,providing valuable references for related engineering practices.

关 键 词：桥梁支座 有限元分析 高速铁路 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]