济南某工程大跨度预应力结构有关问题的探讨  

Research on several issues of large-span prestressed structure

作　　者：边广生[1] 李金根[1] 王岩 

机构地区：[1]东南大学土木工程学院,江苏南京210096 [2]中铁第十四工程局,山东济南250014

出　　处：《山东建筑工程学院学报》2003年第4期15-17,38,共4页Journal of Shandong Institute of Architecture and Engineering

摘　　要：介绍了济南某工程大跨度预应力结构的测试分析方法,用ANSYS有限元程序对这种带次框架的大跨度预应力结构的受力特点进行分析,在张拉顺序、预应力梁截面改变对内力的影响、预应力施加后对结构的影响以及次弯矩的作用等方面进行了探讨并给出自己的结论,针对设计和施工提出建议。Based on one engineering case in Jinan, test and analysis method of a prestressed large-span structure was introduced in this paper. Load carrying behavior of the structure which has sub-frame was ananlyzed by ANSYS, one commercial finite element analysis program. Such issues were discussed as tension sequence, the influence of changing prestressed beam section on inner force, prestress in fluence on structure and induced sub-moment. Some proposals are given on design and construction. Advice of design and construction is introduced in this paper.

关 键 词：大跨度预应力结构 预应力梁 后张预应力 有限元 测试 框架 

分 类 号：TU378.4[建筑科学—结构工程]