框支墻梁的低周反復(fù)荷載試驗(yàn)及抗震承載力計(jì)算*
龔紹熙 李 翔 張 曄 繆國慶
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龔紹熙 李 翔 張 曄 （同濟(jì)大學(xué) 上海 200092）繆國慶 （上?；ぱ芯吭?200062）
[提要] 給出8個框支墻梁在水平低周反復(fù)荷載作用下的試驗(yàn)結(jié)果，討論其受力性能和破壞形態(tài)、變形性能和滯回延性、抗震性能與組合作用。在試驗(yàn)基礎(chǔ)上提出墻梁墻體受剪承載力公式，通過有限元分析給出框支墻梁托梁和框支柱內(nèi)力和承載力計(jì)算公式，均與試驗(yàn)符合良好?；谠囼?yàn)研究和有限元分析，提出框支墻梁抗震設(shè)計(jì)建議。
[關(guān)鍵詞] 框支墻梁 低周反復(fù)荷載試驗(yàn) 有限元分析 承載力計(jì)算 抗震設(shè)計(jì)
The test results on 8 specimens of the wall-beams supported on frame are given. The behaviour and modes of failure, the deformation and hysteresis loop, the composite action and earthquake resistance are discussed. The formulas of horizontal shear capacity for the walls of wall-beams supported on frame based upon the test results,and the formulas of inner forces and the calculation of bearing capacity for the bressummer and frame column by means of the finite element analyses are presented respectively.The results of calculation tally well with the test results.The suggestions for aseismic design of the wall-beams supported on frame are presented.
Keywords: wall-beams supported on frame; test; low-cyclic loading; calculation; bearing capacity; aseismic design
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