预应力和部分预应力混凝土大偏心受压构件截面转角延性的计算

THE CALCULATION OF THE ROTATIVE DUCTILITY OF P C AND P P C LARGE ECCENTRICALLY COMPRESSIVE MEMBERS

根据理论分析推导出了钢筋混凝土（Ｒ．Ｃ．）预应力混凝土（Ｐ．Ｃ．）和部分预应力混凝土（Ｐ．Ｐ．Ｃ．）大偏心受压构件截面转角（动）延性的计算公式，提出了计算方法，并分析了影响计算结果的因素及其取值。

This article introduces the calculative formulas for the rotation ductility of P.C & P.P.C.large eccentrically compressive members by theoretical analysis.Then the calculative method is suggested.The influential factors effecting to the calculative results and their values are analysed and suggested.There are two purposes here:1)Calculating and analysing further the factors which influences the earthquake resistant behaviours,2)Calculating coefficients of ductility and drawing the load～deformation curves in the all loaded process for design. This article is the continuation and extension of the research for ductility of bended member