|Table of Contents|

Comparison of Wind-induced Vibration Analysis of Single-layer Spherical Latticed Shells Between Time Domain Method and Frequency Domain Method(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2008年02期
Page:
45-50
Research Field:
Publishing date:
2008-06-20

Info

Title:
Comparison of Wind-induced Vibration Analysis of Single-layer Spherical Latticed Shells Between Time Domain Method and Frequency Domain Method
Author(s):
LI Jie NI Zhen-hua XIE Zhuang-ning
Department of Civil Engineering, Shantou University, Shantou 515063, Guangdong, China
Keywords:
single-layer spherical latticed shell wind-induced response Newmark-β method complete quadratic combination method proper orthogonal decomposition
PACS:
TU311.3
DOI:
-
Abstract:
Based on the wind pressure data synchronous measured from wind tunnel tests, the peak vertical displacement responses of nodes on a single-layer spherical latticed shell structures were calculated by Newmark-β method in the time domain, complete quadratic combination(CQC)method and square root sum of square(SRSS)method in the frequency domain respectively. The characteristics of accuracy and computation time of three kinds of methods were compared. Moreover, a new approach to interpolate the time-series of loading was presented in which the fluctuating wind loads were separated into space covariance modes and principle coordinates by using proper orthogonal decomposition technique, then the time-series of principle coordinates were interpolated in terms of cubic splines function to form a new time-series of wind load. The analysis results show that CQC method has low time consuming and high computing efficiency in roof wind-induced vibration analysis.

References:

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Last Update: 2008-06-20