基于中欧桥梁规范设计的预应力混凝土连续梁桥确定性及可靠性对比分析

发布时间：2018-01-04 02:09

本文关键词：基于中欧桥梁规范设计的预应力混凝土连续梁桥确定性及可靠性对比分析　出处：《长安大学》2015年硕士论文　论文类型：学位论文

【摘要】：本文针对基于中欧桥梁规范设计的预应力混凝土连续梁桥的差异性问题,结合当前桥梁结构分析和结构可靠度理论的最新进展,从适用于工程实际和科研创新的角度出发,从以下几方面进行了研究。基于已有的中欧桥梁规范对比的研究成果,采用有限元计算作用、作用效应组合及结构抗力的大小;基于结构可靠性评估已有研究成果的归纳分析,采用定性与定量相结合的方法,构建结构的功能函数,并进行基于中欧桥梁规范设计结果的对比分析;以一次落架施工的预应力混凝土连续梁桥为研究对象,确定性对比方面计算内容包括以下几项:永久作用效应、可变作用效应、作用效应组合和正截面抗弯承载能力,可靠性主要针对的正截面的抗弯承载能力安全性从可靠性方面进行评估,确定性与可靠性方面对比分析了安全系数与可靠指标的关系。
[Abstract]:Aiming at the problem of prestressed concrete bridge design specification of central difference based on continuous girder bridge, combined with the latest development of the reliability theory of bridge structure analysis and structure, starting from the practical and innovative research perspective, the research from the following aspects. The research achievements of comparative central bridge criterion based on the existing and finite element calculation, the effect of combination and structure force; the analysis of the existing research results of structure reliability assessment based on induction, using both qualitative and quantitative methods, construct function structure, and compares the central bridge design specifications based on the results of a fall; to the prestressed concrete continuous frame construction girder bridge as the research object, the deterministic contrast calculation includes the following items: permanent effect, variable effect, combination of action effects The reliability of flexural capacity of normal section is evaluated from the aspect of reliability, and the relationship between safety factor and reliability index is compared between certainty and reliability.

【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U448.35

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