大跨度上承式钢管混凝土拱桥地震损伤分析  

Seismic Damage Analysis of Long-span Deck-type Concrete-filled Steel Tubular Arch Bridge

作　　者：杨非凡 廖晶 王占飞 Yang Feifan;Liao Jing;Wang Zhanfei(School of Traffic Engineering,Shenyang Jianzhu University,Shenyang 110168,China;CCCC Comprehensive Planning and Design Institute Co.,Ltd.,Beijing 100024,China)

机构地区：[1]沈阳建筑大学交通工程学院,沈阳市110168 [2]中交综合规划设计院有限公司,北京市100024

出　　处：《北方交通》2022年第6期1-4,8,共5页Northern Communications

摘　　要：为评估分析大跨度钢管混凝土拱桥在地震作用下的损伤情况,进而评估其抗震性能,以一座高墩大跨度上承式钢管混凝土拱桥为例,根据设计图纸以及相关参数资料,通过Midas/Civil软件建立桥梁模型,采用非线性时程法对该桥在多维地震作用下进行了地震损伤模拟分析,对比研究不同类型构件在地震作用下的损伤程度。研究结果表明:该钢管混凝土拱桥整体抗震性能较好,在3种类型构件中,钢管构件损伤程度普遍较轻,钢管混凝土构件损伤位置较多,但也普遍较轻,钢筋混凝土构件损伤最为严重。In order to evaluate and analyze the damage of long-span concrete-filled steel tubular arch bridge under earthquake and then evaluate its seismic performance,taking a high pier long-span deck-type concrete-filled steel tubular arch bridge as an example,according to the design drawings and relevant parameter data,the bridge model is established by Midas/civil software,the seismic damage simulation analysis of the bridge under multi-dimensional earthquake is carried out by using nonlinear time history method,and the damage degree of different types of members under earthquake is compared and studied.The research results show that:the overall seismic performance of the concrete-filled steel tubular arch bridge is good.Among the three types of members,the damage degree of steel tubular members is generally light,the damage location of concrete-filled steel tubular members is more,but it is also generally light,and the damage of reinforced concrete members is the most serious.

关 键 词：钢管混凝土拱桥 损伤分析 抗震性能 非线性时程法 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]