Z形截面鋼筋混凝土偏壓柱的簡化設(shè)計(jì)方法
申冬建 陳云霞 趙艷靜
- 摘 要
-
申冬建 （河北農(nóng)業(yè)大學(xué)城建院 保定 071001）陳云霞 趙艷靜 （天津大學(xué)土木系 天津 300072）[提要] 通過對Z形截面偏壓柱及中長柱的計(jì)算機(jī)理論分析，探討了在不同軸壓比下Z形截面柱Mx-M。關(guān)系以及荷載角與截面中和軸之間的關(guān)系。研究了在不同荷載角、長細(xì)比以及相對偏心距時，偏壓柱的基本變形規(guī)律，提出了用偏心距增人系數(shù)來進(jìn)行設(shè)計(jì)的方法，并給出了偏心距增人系數(shù)的計(jì)算公式。與方形柱的對比表明，Z形柱截面高寬比為1.0-1.3時受力較為合理。
[關(guān)鍵詞] Z形截面柱 設(shè)計(jì)方法偏心距增人系數(shù)
Bascd on the computcr thcorctical analysis for short and slcndcr Z-shapcd R C columns, the Mx - My rclationships of columns for diffcrcnt comprcssion ratios as wcll as the rclationships bcrwccn loading angtcs and ncutral axis anglcs of cross scction arc invcstigatcd. The gcncral bchaviors of columns for diffcrcnt loading anglcs and slcndcrncss ratios, ccccntricity ratios arc studicd.A dcsign proccdure using the ccccntricity magnification factor is proposcd, and the formula of ccccntricity magnification factor is givcn. It is shown by the comparison bctwccn the square columns and Z-shapcd columns that the rational ratio of hcight and width for Z-shapcd columns is1.0～1.3.
Keywords: Z-shapcd cross scction columns; dcsign proccdurc; ccccntricity magnification factor
- 下載地址
-
