轨道交通新型节段预拼桥梁受力特性研究  

Study on Stress Characteristics of New Segmental Prefabricated Assembled Bridge for Rail Traffic

作　　者：方亚非[1] 洪浩[1] 张剑英[1] 朱鸿欣[1] 

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海市200092

出　　处：《城市道桥与防洪》2016年第7期286-287,293,共3页Urban Roads Bridges & Flood Control

摘　　要：在上海市轨道交通17号线高架区间,某主跨55m的节段预制拼装混凝土连续梁桥,采用上U下箱的新型截面。现通过实体有限元模型,分析其各腹板的剪力分配情况,用以指导该桥梁的抗剪设计;同时研究了其横向受力特性,以指导横向配筋设计。In the elevated area of Shanghai Metro Line 17, the new section of the upper U and lower box is used for the segmental prefabricated assembled concrete continuous beam bridge with the main span of 55 m.According to the solid finite element model, the article analyzes the shear distribution of each web in order to guide the anti-shear design of this bridge, and also studies its transverse stress characteristic to guide the transverse reinforcement design.

关 键 词：上U下箱截面 节段预制拼装 剪力 横向受力 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]