不同张拉中心与宽高比对钢绞线预应力混凝土梁的影响  

作　　者：王治杰 高喜仁 

机构地区：[1]宁夏第五建筑有限公司,银川750021

出　　处：《科技创新与应用》2025年第5期79-82,共4页Technology Innovation and Application

摘　　要：以钢绞线预应力混凝土梁为研究对象,通过ABAQUS有限元分析软件建立模型并分析不同张拉位置和不同宽高比对钢绞线预应力混凝土梁整体变形、混凝土应力、混凝土塑性损伤的影响规律。结果表明,改变混凝土梁的宽高比对结构整体变形的影响较小,改变张拉位置能有效控制结构变形,在不同张拉位置、不同宽高比下混凝土应力具有较大差异。Prestressed concrete beams with steel strands were taken as the research object,and a model was established using ABAQUS finite element analysis software.The effects of different tensioning positions and various width-to-height ratios on the overall deformation,concrete stress,and concrete plastic damage of the prestressed concrete beams were analyzed.The results show that changing the width-to-height ratio of the concrete beam has little influence on the overall deformation of the structure,changing the tensioning position can effectively control the structural deformation,and the concrete stresses are greatly different under different tensioning positions and different width-to-height ratios.

关 键 词：预应力混凝土 张拉位置 结构变形 宽高比 钢绞线 

分 类 号：TU378[建筑科学—结构工程]