Wind Effects on Roofs with High-Profile Tiles: Experimental Study
Publication: Journal of Architectural Engineering
Volume 20, Issue 4
Abstract
Hurricane wind–induced damage to the roofs of residential buildings has raised concerns regarding design provisions and construction practices. Current code provisions on wind loads on roofs are mainly based on testing of building models that do not include the architectural details of roofing materials. Past research has indicated that net pressures on roof tiles can differ significantly from external pressures on bare roofs and depend on wind direction, the location of the tile, and whether the eaves are sealed. This study presents experimental pressure measurements that confirm existing findings and provide more extensive results on wind loads on high-profile roof tiles. Four different roof models with bare and tiled roof decks were tested. Pressures on the external surfaces of the tiles, within the cavity space, and in the joint space between two overlapping tiles were measured to evaluate their effects on the net peak pressures on the tiles. Area-averaged peak pressure coefficients obtained for bare and tiled roof decks were found to differ significantly. To develop vulnerability curves pertaining to roof tile damage in residential buildings, the test results were complemented by additional pressure data obtained in a wind tunnel and tile resistance data obtained from static uplift tests. The vulnerability study showed that applying the net wind uplift loading on tiles rather than external surface pressures only resulted in increased roof tile damage. Results are expected to differ for tile shapes not considered in this study. The test protocols presented in this study may be used to help develop tile-specific design guidelines.
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Acknowledgments
The authors acknowledge the support of the National Science Foundation (Award No. CMMI-1151003). Additional support was provided by the Florida Sea Grant College Program (Award No. R/C-D-18) and the Center of Excellence in Hurricane Damage Mitigation and Product Development (through FIU’s International Hurricane Research Center). The findings and opinions presented in this paper are those of the authors and not the views of the sponsoring agencies.
References
Aly, A. M., Chowdhury, A. G., and Bitsuamlak, G. (2011). “Wind profile management and blockage assessment for a new 12-fan Wall of Wind facility at FIU.” Wind Struct., 14(4), 285–300.
ASCE. (2010). “Minimum design loads for buildings and other structures.” ASCE 7-10, Reston, VA.
Balderrama, J., Chowdhury, A. G., Masters, F. J., Gurley, K. R., and Prevatt, D. O. (2011). “The Florida Coastal Monitoring Program (FCMP): A review.” J. Wind Eng. Ind. Aerodyn., 99(9), 979–995.
Bienkiewicz, B., and Sun, Y. (1997). “Wind loading and resistance of loose-laid roof paver systems.” J. Wind Eng. Ind. Aerodyn., 72(1), 401–410.
Bitsuamlak, G. T., Dagnew, A., and Chowdhury, A. G. (2010). “Computational blockage and wind simulator proximity effects for a new full-scale testing facility.” Wind Struct., 13(1), 21–36.
Blessing, C., Chowdhury, A. G., Lin, J., and Huang, P. (2009). “Full-scale validation of vortex suppression techniques for mitigation of roof uplift.” Eng. Struct., 31(12), 2936–2946.
British Standards Institution (BSI). (2003). “Code of practice for slating and tiling (including shingles).” BS 5534, London.
FEMA. (2005). “Mitigation Assessment Team report: Summary report on building performance 2004 hurricane season.” FEMA 490, Washington, DC.
Fernandez, G., Masters, F., and Gurley, K. (2010). “Performance of hurricane shutters under impact by roof tiles.” Eng. Struct., 32(10), 3384–3393.
Florida Building Commission. (2010). Florida building code, Tallahassee, FL.
Florida Office of Insurance Regulation. (2005). “Predicting the vulnerability of typical residential buildings to hurricane damage.” Florida Public Hurricane Loss Projection Model, Vol. 2, Tallahassee, FL.
Florida Roofing, Sheet Metal and Air Conditioning Association (FRSA). (2005). Concrete and clay roof tile installation manual, 4th Ed., Winter Park, FL.
Hamid, S., et al. (2010). “Predicting losses of residential structures in the state of Florida by the public hurricane loss evaluation models.” Stat. Methodol., 7(5), 552–573.
Hazelwood, R. A. (1981). “The interaction of the two principal wind forces on roof tiles.” J. Wind Eng. Ind. Aerodyn., 8(1–2), 39–48.
Holmes, J. (2007). Wind loading of structures, 2nd Ed., Taylor & Francis, London.
Huang, P., Chowdhury, G. A., Bitsuamlak, G., and Liu, R. (2009a). “Development of devices and methods for simulation of hurricane winds in a full-scale testing facility.” Wind Struct., 12(2), 151–177.
Huang, P., Gu, M., Mirmiran, A., and Chowdhury, G. A. (2009b). “FEM analysis of tile roofs under simulated typhoon impact.” Proc., 7th Asia-Pacific Conf. on Wind Engineering (CD-ROM), Tamkang Univ., Taiwan.
Huang, P., Mirmiran, A., Chowdhury, A. G., Abishdid, C., and Wang, T.-L. (2009c). “Performance of roof tiles under simulated hurricane impact.” J. Archit. Eng., 26–34.
Kawai, H., and Nishimura, H. (2003). “Field measurement on wind force on roof tiles.” Proc., 11th Int. Conf. on Wind Engineering, Vol. I, Wind Science and Engineering Research Center, Texas Tech Univ., Lubbock, TX, 599–606.
Masters, F. J., Gurley, K. R., Shah, N., and Fernandez, G. (2010). “Vulnerability of residential window glass to lightweight windborne debris.” Eng. Struct., 32(4), 911–921.
Masters, F. J., Reinhold, T., Gurley, K., and Aponte, L. (2005). “In-field measurement and stochastic-modeling of tropical cyclone winds.” Proc., 4th European-African Conf. on Wind Engineering (EACWE4) (CD-ROM), Academy of Science of the Czech Republic, Prague, Czech Republic.
MATLAB 2010 [Computer program]. Cambridge, MA, MathWorks.
Murakami, S., and Mochida, A. (1990). “3-D numerical simulation of airflow around a cubic model by means of the model.” J. Wind Eng. Ind. Aerodyn., 31(2–3), 283–303.
NIST. (2006). “Performance of physical structures in Hurricane Katrina and Hurricane Rita: A reconnaissance report.” Technical Note 1476, Gaithersburg, MD.
Okada, H. (1988). “Wind tunnel tests on behavior of rooftiles under strong wind.” J. Wind Eng., 1988(35), 1–15.
Okada, H., Ohkuma, T., Katagiri, J., and Marukawa, H. (2009). “Study on method for evaluating wind performance of tiled roof.” Proc., 7th Asia-Pacific Conf. on Wind Engineering (CD-ROM), Tamkang Univ., Taiwan.
Peng, X., Yang, L., Gurley, K., Prevatt, D., and Gavanski, E. (2013). “Prediction of peak wind loads on a low-rise building.” Proc., 12th Americans Conf. on Wind Engineering (12ACWE) (CD-ROM), American Association for Wind Engineering, Fort Collins, CO.
Pinelli, J.-P., Gurley, K. R., Subramanian, C. S, Hamid, S. S., and Pita, G. L. (2008). “Validation of a probabilistic model for hurricane insurance loss projections in Florida.” Reliab. Eng. Syst. Saf., 93(12), 1896–1905.
Richards, P. J., Hoxey, R. P., Connell, B. D., and Lander, D. P (2007). “Wind-tunnel modelling of the Silsoe Cube.” J. Wind Eng. Ind. Aerodyn., 95(9–11), 1384–1399.
Richards, P. J., Hoxey, R. P., and Short, L. J. (2001). “Wind pressure on a 6 m cube.” J. Wind Eng. Ind. Aerodyn., 89(14), 1553–1564.
Robertson, A. P., Hoxey, R. P., Rideout, N. M., and Freathy, P. (2007). “Full-scale study of wind loads on roof tiles and felt underlay and comparisons with design data.” Wind Struct., 10(6), 495–510.
Sadek, F., and Simiu, E. (2002). “Peak non-Gaussian wind effects for database-assisted low-rise building design.” J. Eng. Mech., 530–539.
Simiu, E., Vickery, P., and Kareem, A. (2007). “Relation between Saffir–Simpson hurricane scale wind speeds and peak 3-s gust speeds over open terrain.” J. Struct. Eng., 1043–1045.
Stathopoulos, T., and Saathoff, P. (1991). “Wind pressure on roofs of various geometries.” J. Wind Eng. Ind. Aerodyn., 38(2–3), 273–284.
Tieleman, H. W. (2003). “Wind tunnel simulation of wind loading on low-rise structures: A review.” J. Wind Eng. Ind. Aerodyn., 91(12–15), 1627–1649.
Tieleman, H. W., Reinhold, T. A., and Hajj, M. R. (1997). “Importance of turbulence for the prediction of surface pressures on low-rise structures.” J. Wind Eng. Ind. Aerodyn., 69–71(Jul–Oct), 519–528.
van de Lindt, J. W., and Dao, T. N. (2009). “Performance-based wind engineering for woodframe buildings.” J. Struct. Eng., 169–177.
Visscher, B. T., and Kopp, G. A. (2007). “Trajectories of roof sheathing panels under high winds.” J. Wind Eng. Ind. Aerodyn., 95(8), 697–713.
Yu, B., Chowdhury, A. G., and Masters, F. J. (2008). “Hurricane wind power spectra, cospectra, and integral length scales.” Boundary Layer Meteorol., 129(3), 411–430.
Information & Authors
Information
Published In
Journal of Architectural Engineering
Volume 20 • Issue 4 • December 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Aug 22, 2013
Accepted: May 9, 2014
Published online: Jun 4, 2014
Discussion open until: Nov 4, 2014
Published in print: Dec 1, 2014
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