884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

        趙艷靜  陳云霞 王玲勇
        (天津大學(xué)土木系  300072)

[提要]  根據(jù)鋼筋砼雙向壓彎柱的工作機(jī)理，提出了用全過程非線性分析來研究雙向壓彎柱截面延性的方法，并編制了相應(yīng)的計(jì)算機(jī)程序。通過對(duì)733根L形柱、733根T形柱和243根方形柱電算結(jié)果的分析，總結(jié)了L形\T形、方形截面雙向壓彎柱的截面延性規(guī)律，提出了這三種截面雙向壓彎柱的截面延性計(jì)算公式，并在此基礎(chǔ)上，對(duì)軸壓比、箍筋間距等一系列構(gòu)造要求提出了設(shè)計(jì)建議。
[關(guān)鍵詞]  異形截面柱 雙向壓彎 非線性分析 軸壓比 荷載角 配筋

A method for the nonlinear analysis of complete response process for ductility of R.C. columns subjected to biaxially eccentric loading is presented. According to analytical results of 733 sets of  L-shaped columns, 733 sets of T-shaped columns and 243 sets of square columns, the ductile behavior of R.C.L-shaped, T-shaped and square columns are mvestigated. The calculation formulas for ductilit,y analysis of R.C. columns with three kinds of  sections are  suggested. On the basis of  analysis, a number of design suggestions related to axial compression ratio and the spacing of stirrup are also proposed.
Keywords: R.C.columns; L(T)-shaped sections; biaxially eccentric loading; nonlinear analysis; com
pression ratio; loading angles; curvature ductility rati。