【摘要】 以异型拱桥为例,采用大型通用有限元软件对其进行动力分析,着重考虑其在地震作用下的响应,并采用粘弹性阻尼器对其进行耗能减震控制。采用最不利位置内力、位移作为评价指标。结果表明,异型拱桥在多维激励作用下采用粘弹性阻尼器的减震效果是明显而有效的。更多还原

【Abstract】 Taking special-shaped arch bridges as example,this paper carries out the dynamic analysis of special-shaped arch bridges by using a large general finite element software.It specifically considers the seismic responses of special-shaped arch bridges and studies the shock absorption control of this kind of bridges by using visco-elastic dampers.The worst internal force and displacement are used as evaluation targets.Results show that it is obviously effective for shock absorption of special-shaped arch bridges when visco-elastic dampers are used under multi-dimensional excitation.更多还原