【摘要】 阻尼索系统由高强预应力钢索、粘滞阻尼器和索形调节器构成。本文介绍了采用阻尼索系统进行既有框架结构抗震加固的分析方法。为从理论上验证阻尼索系统的减震性能,采用该系统对一栋六层教学楼进行抗震加固分析,大震下的非线性时程分析结果表明,跟原结构相比,阻尼索系统发挥了良好的减震效果。更多还原

【Abstract】 Damped cable systems consist of high-strength prestress cables,viscous dampers and cable shape adjustor. The analytical method of the proposed system for seismic retrofit of existing frame structures is presented in this paper. To assess the seismic performance of the proposed system,seismic analysis of a six-storey school building,retrofitted with damped cable systems,is demonstrated. The numerical results through the nonlinear dynamic analysis at the major earthquake level show that seismic performance of the retrofitted building is encouragingly better than the original structures.更多还原