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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 102
PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING
Edited by:
Paper 143

Determination of Aerodynamic Coefficients for a Roof Steel Cover of Large Lights Using Computational Fluid Dynamics

H.A. Sánchez Sánchez and S. Oliveros García

Section of Postgraduate Studies, School of Engineering and Architecture
National Polytechnic Institute, México

Full Bibliographic Reference for this paper
, "Determination of Aerodynamic Coefficients for a Roof Steel Cover of Large Lights Using Computational Fluid Dynamics", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 143, 2013. doi:10.4203/ccp.102.143
Keywords: covers of large spans, pressure coefficients, numerical simulation of wind drags, lightweight structures, wind forces, computational fluid dynamics.

Summary
This paper presents a study of wind drag coefficients of the steel roof cover of large lights, using computational fluid dynamics (CFD) analysis. With new architectural demands and the need to cover large spans or areas with minimal support, has led to the development of lightweight structures with irregular geometries of non-linear behaviour and self-supporting ability to resist the loads and effects generated mainly by external climatologically agents such as snow and wind, these conditions usually govern the design of such structures. For its geometry these roofs require large lights, this condition makes it necessary to accurately determine the coefficients of drag or pressure, subject to the action of the wind. So this paper investigates and determines by numerical simulation the pressure coefficients on a curved metal cover. Then, the numerical results are compared with national norms CFE-2008 and the Eurocode, finding a good correlation between them and at the same time validate numerical models.

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