上跨软土深基坑干线铁路便桥动力特性研究
Study on Dynamic Property of Temporary Railway Bridge Overpassing Weak Soil Deep Foundation Pit
投稿时间:2012-05-15  
中文关键词:干线铁路便桥  钢格构柱连续刚构体系  软土深基坑  结构动力特性
英文关键词:temporary railway bridge  continuous rigid frame system with steel lattice column  weak soil deep foundation pit  structure dynamic property
基金项目:上海市科学技术委员会资助项目(10230501400)
作者单位
马坤全 同济大学 桥梁工程系 
孙运通 同济大学 桥梁工程系 
陈昊 同济大学 桥梁工程系 
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中文摘要:
      以某铁路大型车站改建工程软土深基坑施工为背景,拟定了多个钢格构柱现浇钢筋混凝土梁板连续刚构便桥设计方案,针对便桥结构体系伴随软土深基坑挖土施工而不断发生变化的特点,系统计算分析了软土深基坑挖土过程便桥结构全桥体系的动力特性,得到一些有益的结论,可供上跨深基坑干线铁路便桥设计和基坑挖土施工参考。
英文摘要:
      Based on soft soil deep foundation pit construction in a large railway station reconstruction project,a few design proposals of continuous rigid frame temporary railway bridge consisting of steel lattice column and cast in place reinforced concrete beam slab are studied. In view of the constant changing of temporary railway bridge system in process of earth cutting,the dynamic properties of whole temporary railway bridge system are calculated and analysed systematically. Some useful conclusions are got which could be referenced for design of temporary railway bridge overpassing weak soil deep foundation pit.
马坤全,孙运通,陈昊.上跨软土深基坑干线铁路便桥动力特性研究[J].石家庄铁道大学学报(自然科学版),2012,(3):10-.
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