体外预应力混凝土梁挠度分析  

THE DEFLECTION CALCULATION OF EXTERNALLY PRESTRESSED CONCRETE BEAM

作　　者：熊学玉[1] 王寿生[1] 

机构地区：[1]同济大学预应力研究所,上海200092

出　　处：《工业建筑》2004年第7期12-15,共4页Industrial Construction

基　　金：建设部<建筑结构体外预应力加固技术规程>规范编制的研究项目

摘　　要：对国内外体外预应力混凝土梁挠度的计算方法进行了总结与分析 ,已有计算方法考虑预应力增量及二次影响仅限于短期挠度计算。进一步的分析表明 ,体外预应力受弯构件挠度计算还需要考虑材料的非线性、混凝土收缩和徐变。The deflection calculation methods of externally prestressed concrete beam both home and abroad are reviewed.The existing methods have considered tendon stress increase and second\|order effect,but limited to short\|term deflection calculation.Further analysis indicate that other factors such as material non\|linear,concrete shrinkage and creep,high temperature performance,as well as the interaction among these factors,should also be considered.

关 键 词：体外预应力 挠度 体外预应力混凝土梁 受弯构件 徐变 

分 类 号：TU378[建筑科学—结构工程]