公路桥台地震土压力分析  

Analysis on earthquake soil pressure of highway bridge abutment

作　　者：罗绍仟 LUO Shaoqian(Southwest Survey and Planning Institute of National Forestry and Grassland Administration,Kunming 650031)

机构地区：[1]国家林业和草原局西南调查规划院,云南昆明650031

出　　处：《林业建设》2024年第6期63-65,共3页Forestry Construction

摘　　要：目前正在实施的技术标准《公路桥梁抗震设计规范》中,对桥台地震土压力的推荐计算公式存在一定的局限性和力学误差,而相关的条文说明或规范注释没有给出其力学依据和逻辑推导。从土力学基本原理出发,推导规范公式C.0.1-1存在的问题和局限性,并通过实例计算对比该局限性对地震土压力的影响。对桥梁设计、基础工程设计时地震土压力的计算核实具有指导意义。In currently being implemented technical standards Specifications for Seismic Design of Highway Bridges,about recommended formula of earthquake soil pressure there are some limitations and mechanical errors,but in the relevant provision or specification notes the mechanical basis and logical derivation are not given.This paper starts from the basic principle of soil mechanics,the problems and limitations of deducing standards formula C.0.1-1,the influence of this limitation on earthquake soil pressure is compared by an example.The calculation and verification of seismic soil pressure in bridge design and foundation engineering design have guiding significance.

关 键 词：桥台 地震土压力 主动土压力 被动土压力 

分 类 号：U443.21[建筑科学—桥梁与隧道工程]