After comparing between the finite - element analysis and experimental results , the author verified the fem . then according to the chinese code , the nonlinear finite model of the beam - to - column is established which are made of different size components . the responses of beam - to - column web moment connections which are made of different size components are compared and analyzed from three facets , and the conclusions about the joints behavior are drawn : thicken the connection plate , lengthen the connection plate or use a back - up stiffer can improve the connection behavior , consist of improving the behavior of load - supported and reducing the stress convergence in the flange moment plates 本文根據(jù)我國(guó)規(guī)范的有關(guān)規(guī)定,自行建立了12個(gè)不同構(gòu)件尺寸的梁柱腹板連接的三維有限元模型,對(duì)不同構(gòu)件尺寸的梁柱腹板剛性連接節(jié)點(diǎn)在單向荷載作用下的反應(yīng)進(jìn)行了研究,從結(jié)構(gòu)的mises應(yīng)力等值線示意圖、梁端加載處的荷載? ?位移曲線、翼緣連接板兩端的mises等效應(yīng)力以及翼緣連接板與柱相連接的三邊的mises應(yīng)力等值線示意圖四方面進(jìn)行了比較與分析,從而得出了不同構(gòu)件尺寸的梁柱腹板剛性連接的在受力行為上的結(jié)論:增加翼緣連接板的厚度、增加翼緣連接板的長(zhǎng)度以及采用柱的橫向加勁肋均可以改善節(jié)點(diǎn)的受力性能:提高節(jié)點(diǎn)的承載能力;減小翼緣連接板內(nèi)部與柱翼緣邊的的應(yīng)力不均勻現(xiàn)象,從而避免試件過早地發(fā)生破壞。