摘要
桥梁承载能力与损伤程度评定过程中,越来越多的工程师开始考虑桥梁极限承载力的问题,分析桥梁结构的极限承载力不仅可用于极限设计,而且有助于了解结构的破坏形式,准确探知结构在给定荷载下的安全储备或超载能力,为其安全施工和营运管理提供依据和保障。针对某预应力混凝土空心板梁,结合非线性有限元计算方法,建立了预应力混凝土空心板梁计算模型,同时结合荷载挠度曲线计算结果对其极限承载力进行了研究,所得结论可供工程设计参考。
More and more engineers begin to consider the problem of the ultimate bearing capacity in the process about bridge bearing capacity and damage degree evaluation. Analysis of the ultimate bearing capacity of the bridge is not only used for the limit design, but also for understanding of the destruction of the structure form. The accurate detection of the structure under a given load safety reserve or overload ability can provide the basis for the safe construction and operation management and assurance. A pre-stressed concrete slab was analyzed combined with the curve between load and deforma- tion after the corresponding model was established, and the results can be used for reference in the engineering design.
出处
《新技术新工艺》
2015年第3期30-32,共3页
New Technology & New Process
关键词
空心板
预应力
混凝土
极限承载力
hollow slab, pre-stress, concrete, ultimate load
