A DISCUSSION OF CORRELATION BETWEEN BACKGROUND AND RESONANT RESPONSES OF LONG-SPAN ROOF STRUCTURES
The wind-induced response of long-span roof structures is generally calculated by combining the background and resonant responses utilizing the square root of the sum of squares (SRSS) combination approach or the complete quadratic combination (CQC) approach. However,the correlation between background and resonant responses in this approach is neglected,which may result in predictions that underestimate or overestimate the response. Therefore,the objective of this paper is to discuss the importance of considering the correlation; and two typical long-span roof structures are used to illustrate the determination of the correlation and to discuss its effect in the design and anslysis of long-span roof structures. It is shown through the two examples that the greatest absolute value of the correlation coefficient between the background and resonant components is close to 20％,while its corresponding relative error is about ±5％; this illustrates that the wind-induced response may be underestimate or overestimated by up to 5％.
Long-span roof structure Wind tunnel test Wind-induced response Correlation
Ji-Yang Fu An Xu Jiu-Rong Wu Ruo-Hong Zhao
Guangzhou University- Tamkang University Joint Research Center for Engineering Structure Disaster Pr Guangzhou University-Tamkang University Joint Research Center for Engineering Structure Disaster Pre
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
1501-1505
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）