Author： Katsumura Akira Tamura Yukio Nakamura Osamu
Publisher： International Association for Bridge and Structural Engineering
ISSN： 1016-8664
Source： Structural Engineering International, Vol.15, Iss.4, 2005-11, pp. : 248-251
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The paper presents a new proposal for universal wind load distribution simultaneously reproducing maximum load effects on a large-span cantilevered roof. It discusses the equivalent static wind load (ESWL) that reproduces the maximum load effects in structural members. This load is referred to hereafter as the universal ESWL. In this study, the universal ESWL is shown by a combination of eigenmodes calculated by Proper Orthogonal Decomposition (POD) analysis of fluctuating wind pressure. By applying singular value decomposition to a matrix of eigenmodes multiplied by the influence function, the optimal universal ESWL is found. This method is applied to large cantilevered roof models. The maximum load effects for bending moment and shear force are determined to estimate the universal ESWL. The maximum load effects reproduced by the universal ESWL show good agreement with those directly estimated by time history analysis.
Related content
Access to resources
Recommend
Interference effects on wind loads on low-rise hip roof buildings
Engineering Structures, Vol. 23, Iss. 12, 2001-12 ,pp. :