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[提要]針對(duì)水平荷載作用下帶板式柱帽的板柱結(jié)構(gòu)等代框架計(jì)算模型中等代梁寬度的取值問(wèn)題，運(yùn)用有限元分析軟件ANSYS6.1對(duì)6組31種不同幾何參數(shù)的板柱結(jié)構(gòu)進(jìn)行了水平荷載下的彈性計(jì)算，研究了等代梁寬度與框架幾何尺寸的關(guān)系，得到了等代梁寬度的計(jì)算公式。計(jì)算結(jié)果與振動(dòng)臺(tái)試驗(yàn)結(jié)果的對(duì)比表明，提出的公式具有較高的計(jì)算精度。

[關(guān)鍵詞]板柱結(jié)構(gòu) 板式柱帽 等代框架 等代梁寬度

Abstract: Thirty-one finite element analysis models of flat-plate structures with slab column-cap with different dimensions are established in order to reveal the relationship between equivalent beam width and the frame dimension. ANSYS6.1 finite element analysis software is carried on in the elastic analysis of structures under lateral load. The relationship between the equivalent beam width and the frame dimensions is studied, and the formula for calculating the equivalent beam width is obtained. The calculated results have been proved with a result of the test of shaking table, which indicates that the formula has the higher precision in calculation.

Keywords: flat-plate structure; slab column-cap; equivalent frame; equivalent beam width; structural analysis