弹塑性力学在桥梁中的应用与研究  

Application and research of elastoplastic mechanics in bridge

作　　者：李家稳[1] 刘思勤 Li Jiawen;Liu Siqin(Northern Polytechnic University,Beijing 100144,China)

机构地区：[1]北方工业大学,北京100144

出　　处：《山西建筑》2018年第35期161-162,共2页Shanxi Architecture

摘　　要：借鉴国内外关于弹塑性力学在桥梁中的应用理论文献,通过梳理经典塑性力学在岩土类材料应用上的问题,利用弹塑性力学应力和应变的关系,简化分析弹塑性力学中的应用问题,通过纤维单元与弹塑性动力时程反应分析,同时进行弹塑性动力时程反应结果分析。根据弹塑性力学可以有效减少地震时对桥梁造成的损害,大大地保护好桥梁的主体结构,为相关的科研与实践工作者提供有益参考。In this paper,the application of elastoplastic mechanics in bridges is studied by referring to the theoretical literatures at home and abroad.Then,by using the relation between stress and strain of elastic-plastic mechanics,the application of elastic-plastic mechanics is simplified.Finally,the results of the elastoplastic dynamic time-history reaction are analyzed through the analysis of fiber elements and elastoplastic dynamic time-history reaction.According to the elastoplastic mechanics the damage to the bridge caused by earthquake can be effectively reduced and the main structure of the bridge can be protected greatly.This paper provides useful reference for related scientific research and practice workers.

关 键 词：弹塑性力学 桥梁 地震 

分 类 号：U441[建筑科学—桥梁与隧道工程]