正常使用阶段膨胀加强带作用模拟分析  

A Simulation Analysis of the Effect of Expansion Reinforcing Band in Normal Use Stage

作　　者：孙宁[1] 

机构地区：[1]商丘师范学院建筑土木工程学院,河南商丘476000

出　　处：《陇东学院学报》2012年第5期12-15,共4页Journal of Longdong University

摘　　要：随着超长混凝土结构的发展,膨胀加强带作为实现超长结构无缝设计方法已得到广泛应用.由于现行规范缺少对膨胀加强带的相关规定,各现有文献多集中施工阶段对间接应力的影响进行研究.本文结合工程实例,采用Ansys有限元分析方法,对不同宽度的膨胀加强带在正常使用阶段的作用进行模拟分析,直观地再现膨胀加强带能够有效地减小超长混凝土结构的间接应力,以达到减少梁板开裂的目的.为超长混凝土结构无缝设计提供理论支持.With the development of super long concrete structure,expansion reinforcing band for overlong jointless structural design method has been widely used.Due to the current lack of regulations on expansion reinforcing band,most existing literature concentrates on the study of the indirect influence of stress in the construction phase.Based on project examples,using Ansys finite element analysis method,this article is an effect simulation study of different width of expansion reinforcing band in normal use stage.Expansion reinforcing band of super-long concrete structure can effectively reduce the indirect stress and reduce the beam plate cracking.The research has provided theoretical support for seamless design of super-long concrete structure.

关 键 词：超长混凝土结构 膨胀加强带 正常使用阶段 数值模拟 

分 类 号：TU375.4[建筑科学—结构工程]