摘要
通过六榀接近足尺后张有粘结预应力混凝土框架塑性内力重分布的试验研究,分析了预应力混凝土框架梁截面相对受压区高度、预应力度、初始次弯矩、梁两端弯矩不相等等主要因素对预应力混凝土框架中梁端弯矩调幅的影响规律,并针对不同情况提出了适当的调幅设计建议。
According to the experiment of internal force redistribution to six full-size post-tentioned prestressed concrete frames, the moment modification rules of prestressed concrete frame influenced by some factors are analyzed. These factors are the relative height of equivalent compression zone, prestressing ratio, secondary moment, and the difference in the moment of the beam between both ends. As a result, the proper design proposals are suggested to each situation.
出处
《建筑结构》
CSCD
北大核心
2008年第6期66-69,88,共5页
Building Structure
基金
重庆市自然科学基金资助项目(CSTS
2004BB0058)
关键词
预应力混凝土框架
荷载弯矩
次弯矩
弯矩调幅
prestressed concrete frame
load moment
secondary moment
moment modification
