不同参数对连续梁桥线形的影响分析
Analysis on Influence of Different Parameters on Linear Shape of Continuous Beam Bridge
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摘要: 以某一高速公路上的三跨预应力混凝土连续梁桥为典型例证,利用Midas/civil建立了有限元分析模型,据此分析了混凝土浇筑和预应力张拉、预应力损失、混凝土自重变化、混凝土收缩徐变、环境相对湿度、结构刚度等参数对主梁线形的影响。Abstract: Taking a three-span prestressed concrete continuous beam bridge on a highway as the background and using Midas/civil to establish a finite element analysis model, the influences of concrete casting and prestressed tension, prestressed loss, concrete self-weight change, shrinkage and creep of concrete, environmental relative humidity and structural stiffness on the main beam line are analyzed.