基于集成有限条法的大跨度斜拉桥的地震响应研究  

Study on Seismic Response of Long-span Cable-Stayed Bridge Based on Integrated Finite Strip Method

作　　者：申富林[1] 蔡长青[2] SHEN Fu-lin;CAI Chang-qing(Guangzhou Railway Polytechnic,Guangzhou 510430,China;School of Civil Engineering/Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州铁路职业技术学院,广东广州510430 [2]广州大学土木工程学院,广东广州510006

出　　处：《山东农业大学学报（自然科学版）》2020年第2期316-319,共4页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：广东省重点平台及科研项目(2018GKAQNCX017)。

摘　　要：本文提出了一种高效的基于集成有限条法的用于大跨度斜拉桥地震响应分析的方法。该方法减少了计算模型结构自由度,降低了结构总刚度矩阵集成时间,从而提高了计算分析速度。为验证其有效性,以一座大跨度斜拉桥为具体工程实例进行了地震响应分析,将结果与有限元计算方法进行了对比。结果表明:集成有限条法可以成功应用于大跨度斜拉桥的地震响应分析,并且可以显著降低分析时间,提高效率。In this paper, an efficient method for seismic response analysis of long-span cable-stayed bridge based on integrated finite strip method is proposed. The method reduces the degree of freedom of the model, reduces the integration time of the total stiffness of the structure, and improves the calculation and analysis speed. In order to verify the effectiveness of the proposed method, a large span cable-stayed bridge is used to analyze the seismic response. The results are compared with the finite element method. The results show that the integrated finite method can be successfully applied to the seismic response analysis of long-span cable-stayed bridge, and can significantly reduce the analysis time and improve the efficiency.

关 键 词：集成有限条法 大跨度斜拉桥 地震响应 

分 类 号：TU317.2[建筑科学—结构工程]