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Advances in Civil Engineering
Volume 2018 (2018), Article ID 9738038, 18 pages
https://doi.org/10.1155/2018/9738038
Research Article

Characteristics of Wind Load on Spatial Structures with Typical Shapes due to Aerodynamic Geometrical Parameters and Terrain Type

1School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
2Department of Structural Engineering, Tongji University, Shanghai 200092, China
3Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering, China University of Mining and Technology, Xuzhou 221116, China
4Wind Engineering Research Center, Tokyo Polytechnic University, Kanagawa 243-0297, Japan

Correspondence should be addressed to Yuanqi Li; nc.ude.ijgnot@qyil

Received 26 August 2017; Revised 20 November 2017; Accepted 11 December 2017; Published 29 March 2018

Academic Editor: Pier Paolo Rossi

Copyright © 2018 Yi Zhou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The characteristics of wind load on large-span roofs are complicated by their unique geometrical configurations and strong dependence on aerodynamic geometrical parameters and terrain type. However, there is rarely comprehensive research for characteristics of wind load on spatial structures due to aerodynamic geometrical parameters of roofs and terrain type. In this study, first, the effects of geometrical parameters of roofs and terrain type on the wind pressure distribution based on the data obtained from the existing wind tunnel tests were summarized. Then, the wind loads of full-scale structures were predicted by CFD, and the efficiency of numerical results was further verified by the available wind tunnel tests on spatial structures. Finally, with comparative analyses of the wind pressure distribution of the roofs predicted by CFD under different cases, the effects of shape ratios, especially rise-span ratio, height-span ratio, length-span ratio, and so on, and terrain type on the wind pressure field of typical spatial structures were presented. It can be beneficial to wind-resistant design of structures and can be provided as reference for aerodynamic design optimum of span spatial structures.