【摘要】 通过输入三向El-Centro波,采用时程分析法,对悬臂张弦立体桁架结构进行有控和无控状态的研究,探讨粘弹性阻尼器在悬臂张弦立体桁架结构中的减震性能.结果表明,粘弹性阻尼器对悬臂张弦立体桁架结构的节点位移和杆件轴力都有很好的控制效果,并提出了实用性的工程建议.更多还原

【Abstract】 By taking El-Centro wave and adopting time history analysis,the vibration control in cantilever spatial truss string structure under earthquake excitation is analyzed.A comparison is made for nodal displacements and internal forces of members between with control and without control.It is shown that the viscoelastic damper is very effective to mitigate earthquake responses of long span roofs.Thus it can give a reference to design,research and application of this structure.更多还原