无粘结预应力混凝土梁预应力筋极限应力可靠度分析  

Reliability-based analysis of ultimate stress of prestressed tendons for UPPC beams

作　　者：陶静 刘忠[2] 张正辉 

机构地区：[1]浙江天和建筑设计有限公司,湖州313000 [2]湘潭大学土木工程与力学学院,湘潭411105 [3]湖州交通工程总公司,湖州313000

出　　处：《建筑结构》2008年第11期42-44,64,共4页Building Structure

摘　　要：为使无粘结预应力混凝土梁的预应力筋的极限应力设计表达式具有明确的安全度水平,基于现行的各类规范,依据大量的无粘结预应力混凝土梁的试验数据,充分考虑了各类参数的不确定性,建立了规范规定的目标可靠度水平下的无粘结预应力筋的极限应力设计模型,为规范相应工程领域的设计提供了参考和借鉴。In order to make the designed formula of ultimate stress of the pre-stressed tendons for UPPC beams clearer with a great structural safety, a new model has been proposed, based on the actual codes, a large number of testing results, and the consideration of the uncertainties of various parameters. This model is made for the targeted reliability and can be used to provide with the references for the design in a corresponding field with the actual code.

关 键 词：无粘结 预应力筋 极限应力 可靠度 

分 类 号：TU378.2[建筑科学—结构工程] TU378