In order to get the formulae for calculating the equivalent frame width coefficient of reinforced concrete hollow slab-column structures with edge beam,the finite element structural program was used in the elastic ana...In order to get the formulae for calculating the equivalent frame width coefficient of reinforced concrete hollow slab-column structures with edge beam,the finite element structural program was used in the elastic analysis of reinforced concrete hollow slab-column structure with different dimensions to study internal relationship between effective beam width and the frame dimensions.In addition,the formulas for calculating the increasing coefficient of edge beam were also obtained.展开更多
文摘In order to get the formulae for calculating the equivalent frame width coefficient of reinforced concrete hollow slab-column structures with edge beam,the finite element structural program was used in the elastic analysis of reinforced concrete hollow slab-column structure with different dimensions to study internal relationship between effective beam width and the frame dimensions.In addition,the formulas for calculating the increasing coefficient of edge beam were also obtained.
文摘为研究穿斗式木结构的抗震性能及其加固方法,选取杉木和松木两种木材,设计并制作四榀穿斗式木结构平面外框架,采用黏弹性阻尼器加固试件,对加固和未加固的木框架分别进行低周往复荷载试验,研究结构的抗震性能及阻尼器的加固效果.研究结果表明:加固后木排架滞回曲线的滑移和捏缩现象大幅减轻,滞回环面积增大,等效黏滞阻尼比增加,耗能能力增强,杉木和松木排架耗能能力分别提高83.31%和286.34%;加固后试件的骨架曲线斜率和极限承载力均得到大幅提升,斜率大致随加载幅值增大而增大,极限承载力杉木排架最大提升218.32%,松木排架最大提升458.89%;加固后木结构框架的刚度储备增高,初始刚度杉木试件提升46.9%,松木试件提升264.1%;杉木试件在安装阻尼器后节点的残余拔榫量减少15.06 mm,松木试件减少31.96 mm.
