刚果(布)Loukouni桥典型疲劳细节的疲劳验算分析  

FATIGUE ASSESSMENT ON TYPICAL STRUCTURAL DETAILS OF LOUKOUNI BRIDGE IN CONGO(BRAZZAVILLE)

作　　者：陈蕴威[1,2] 王元清[2] 任剑波[3] 宗亮[4] 武电坤[5] 李俊[6] Chen Yunwei Wang Yuanqing Ren Jianbo Zong Liang Wu Diankun LiJun(China Railway Engineering Consulting Group Corporation, Beijing 100055, China Department of Civil Engineering, Tsinghua University Beijing 100084, China China State Construction Engineering Corporation Limited, Beijing 100000, China School of Civil Engineering, Tianjin University, Tianjin 300354, China China Communications Construction Company Second Highway Consultants Corporation Limited, Wuhan 430052, China China Railway Siyuan Survey and Design Group Corporation Limited, Wuhan 430052, China)

机构地区：[1]中铁工程设计咨询集团有限公司,北京100055 [2]清华大学土木工程系,北京100084 [3]中国建筑股份有限公司,北京100000 [4]天津大学建筑工程学院,天津300354 [5]中交第二公路勘察设计研究院有限公司,武汉430052 [6]中铁第四勘察设计院集团有限公司,武汉430052

出　　处：《钢结构》2017年第1期91-96,共6页Steel Construction

摘　　要：为了深入研究Loukouni大桥的疲劳性能,选取该桥两处典型疲劳细节,基于ANSYS软件计算得到疲劳细节处的应力影响面分布,并参考各国相关规范的疲劳车辆荷载模型,通过最不利加载的方式获得相应的疲劳应力幅,比较不同规范的疲劳验算方法及疲劳评估结果。分析表明,基于欧洲规范的疲劳验算最为保守。Two typical structural details were chosen to investigate the fatigue performance of Loukouni Bridge. The stress influence surface of the structural details was calculated by ANSYS. The fatigue stress ranges were determined based on the fatigue vehicle model specified in different design codes and the most unfavorable distribution of the axle loads. Then the fatigue assessment approach and evaluation results based on different design codes were compared with each other. It was proved that Eurocode 3 would lead to the most conservative assessment result.

关 键 词：Loukouni大桥 疲劳细节 规范 应力影响面 疲劳验算 

分 类 号：U441.4[建筑科学—桥梁与隧道工程]