独塔斜拉桥0号块空间应力分析  

The single tower cable-stayed bridge 0 block space stress analysis

作　　者：唐媛媛 袁帅华[1] 

机构地区：[1]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《湖南文理学院学报（自然科学版）》2017年第4期72-76,共5页Journal of Hunan University of Arts and Science(Science and Technology)

基　　金：国家自然科学基金资助项目(51078197);湖南省高校创新平台开放基金资助项目(09K083)

摘　　要：以浙江省湖州市创业大桥为研究背景,运用有限元分析软件分别建立了全桥的整体杆系模型以及0号块主梁节段的空间实体模型。通过实体单元模型分析了最大悬臂阶段及成桥阶段下0号块的空间应力分布情况,并对实体单元与杆系模型的纵向正应力结果进行了对比,得到应力变化规律。计算结果表明该桥0号块整体以受压为主,应力分布比较均匀,满足设计与规范要求。As an example of Chuangye Bridge in Huzhou of Zhejiang Province, the overall truss model and the space girder segment 0 blocks entity model of bridge is established by applying the finite element analysis software. Through the entity unit model calculation, the largest cantilever stage and 0 block space stress distribution in the bridge stage are analyzed, and the entity unit is compared with the results of the longitudinal normal stress of the truss model, so the stress change rule is obtained. The calculation results show that bridge＇s 0 block is dominated by pressure, the stress distribution is uniform, and the design and specification are met.

关 键 词：独塔斜拉桥 实体模型 空间应力分析 

分 类 号：U411.5[交通运输工程—道路与铁道工程]