本文選題：剪力增大系數(shù) + 框架��； 參考：《世界地震工程》2015年04期

【摘要】：梁端剪力增大系數(shù)是實(shí)現(xiàn)結(jié)構(gòu)"強(qiáng)剪弱彎"的關(guān)鍵措施之一。分析了傳統(tǒng)框架的梁端剪力增大系數(shù),表明現(xiàn)澆樓板對(duì)框架梁端抗剪承載力的影響不可忽略,抗震規(guī)范給出的梁端剪力增大系數(shù)難以實(shí)現(xiàn)梁"強(qiáng)剪弱彎"的抗震要求,由此對(duì)框架梁側(cè)樓板局部設(shè)縫,以消除樓板對(duì)框架梁端抗彎承載力的貢獻(xiàn)。進(jìn)而分析了該樓板局部設(shè)縫框架的梁端剪力增大系數(shù),表明當(dāng)框架底部實(shí)配鋼筋αAs≤1.1βAs+0.1As時(shí),即框架梁端底部實(shí)配鋼筋面積不超過(guò)該處計(jì)算配筋面積的1.1倍與支座負(fù)彎矩配筋面積的0.1倍之和時(shí),現(xiàn)行抗震規(guī)范給出的梁端剪力增大系數(shù)對(duì)于樓板局部設(shè)縫的框架可以實(shí)現(xiàn)"強(qiáng)剪弱彎"的要求,從而使梁彎曲破壞先于受剪破壞。
[Abstract]:The increasing coefficient of shear force at the end of beam is one of the key measures to realize "strong shear and weak bending" of structure. The effect of cast-in-place floor slab on the shear capacity of frame beam end is analyzed, which indicates that the influence of cast-in-place floor slab on the shear bearing capacity of frame beam can not be ignored, and the shear increase coefficient of beam end given in seismic code is difficult to meet the seismic requirements of "strong shear and weak bending". In order to eliminate the contribution of the floor to the flexural bearing capacity of the frame beam, the local joint is arranged on the side floor of the frame beam. Furthermore, the increase coefficient of shear force at the beam end of the partially jointed frame is analyzed. It is shown that when the reinforcement 偽 as 鈮，

本文編號(hào)：2051070