工程建设技术标准动态结构试验中屈服变形的确定方法

A METHOD TO VERIFY THE YIELD DEFORMATION IN STRUCTURE TEST

对屈服点不明显的Ｑ－ｕ曲线如何准确地确定Ｕｙ（屈服变形）值得探讨．针对“国标”（ＧＢ５０１５２—９２）附录所列方法的缺点，提出了双直线能量等效面积法。为便于工程应用，在解析法的基础上导出了实用化方法．

This author mainly discusses the method to verify accurately the uy(yield deformation)of Q-u curve with unclear yield point.It is directed against the drawbacks of the methods listed in the appendix of GB50152-92(Standard of Concrete Structure Test Method)and advance a bi-linear energy equivalent area method.To make it convenient for engineering application,a practical method is developed based on analytic method.