Browse > Article
http://dx.doi.org/10.5659/JAIK_SC.2018.34.2.29

Proposal of Return Period and Basic Wind Speed Map to Estimate Wind Loads for Strength Design in Korea  

Ha, Young-Cheol (Department of Architecture, Kumoh National Institute of Technology)
Publication Information
Journal of the Architectural Institute of Korea Structure & Construction / v.34, no.2, 2018 , pp. 29-40 More about this Journal
Abstract
Strength design wind loads for the wind resistance design of structures shall be evaluated by the product of wind loads calculated based on the basic wind speed with 100 years return period and the wind load factor 1.3 specified in the provisions of load combinations in Korean Building Code (KBC) 2016. It may be sure that the wind load factor 1.3 in KBC(2016) had not been determined by probabilistic method or empirical method using meteorological wind speed data in Korea. In this paper, wind load factors were evaluated by probabilistic method and empirical method. The annual maximum 10 minutes mean wind speed data at 69 meteorological stations during past 40 years from 1973 to 2012 were selected for this evaluation. From the comparison of the results of those two method, it can be found that the mean values of wind load factors calculated both probability based method and empirical based method were similar at all meteorological stations. When target level of reliability index is set up 2.5, the mean value of wind load factors for all regions should be presented about 1.35. When target level of reliability index is set up 3.0, wind load factor should be presented about 1.46. By using the relationship between importance factor(conversion factor for return period) and wind load factor, the return periods for strength design were estimated and expected wind speeds of all regions accounting for strength design were proposed. It can be found that return period to estimate wind loads for strength design should be 500 years and 800 years in according to target level of reliability index 2.5 and 3.0, respectively. The 500 years basic wind speed map for strength design was suggested and it can be used with a wind load factor 1.0.
Keywords
Strength Design; Allowable Stress Design; Coefficient of Variation; Wind Load Factor; Return Period; Expected Wind Speed; Specified Wind Speed; Probabilistic Method; Empirical Method; Reliability Index;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Architectural Institute of Japan. (2004). Recommendations for Loads on Buildings, 128-130
2 Architectural Institute of Japan. (2015a). Recommendations for Loads on Buildings, 401-405
3 Architectural Institute of Japan. (2015b). Recommendations for Loads on Buildings, 120
4 Architectural Institute of Korea. (2016). Korean Building Code and Commentary: 0305 Wind Load, 108-109
5 ASCE. (2006). Minimum Design Loads for Buildings and Other Structures, ASCE/SEI 7-05.
6 ASCE. (2010). Minimum Design Loads for Buildings and Other Structures, ASCE/SEI 7-10
7 Davenport, A. G. (1983). On the Assesment of the Reliability of Wind loading on Low Building, Journal of Wind Engineering and Industrial Aerodynamics, 11(1-3), 21-37   DOI
8 Ellingwood, B. (1981). Wind and Snow Load Statistics for probabilistic Design, Journal of Structural Division., ASCE, 107(7), 1345-1350
9 Ellingwood, B., MacGregor, J. M., Galmambos, T. V., & Cornell. A. C. (1982). Probability Based Load Criteria: Load Factors and Load Combinations, Journal of Structural Division, ASCE, 108(5), 978-997
10 Ellingwood, B., & Tekie, P. B. (1997). Wind Load Statistics for Probability-Based Structural Design, Report Prepared for National Home Builders Association Research Center, National Technical Information, Service, Springfield, Va.
11 Ellingwood, B. R., & Tekie, P. B. (1999). Wind Load Statistics for Probability-Based Structural Design, Journal of Structural Engineering, ASCE, 125(4), 453-463   DOI
12 European Committee for Standardization. (2005). Eurocode 1: Actions on Structures: Part1-4: Wind Actions: EN 1991-1-4: 2005(E)
13 Galmambos, T. V., Ellingwood, B., MacGregor, J. G., & Cornell. A. C. (1982). Probability Based Load Criteria: Assesment of Current Design Practice, Load and Resistance Factor Design for Steel, Journal of Structural Division, ASCE, 108(5), 959-977
14 Gumbel, E. J. (1958). Statistics of Extremes, Colombia University Press
15 ISO. (2009). Wind Actions on Structures, ISO4354: 2009(E)
16 Jung, S. H., Kim, B. J., & Ha, Y. C. (2014). Revision of Basic Wind Speed Map of KBC-2009. Journal of the Architectural Institute of Korea, Structure & Construction Section, 30(5), 37-47
17 Kanda. J. (1986). Estimation of Wind Speed for Return Period on Monthly Maximum Wind speed, Journal of Wind Engineering, JAWE, 9, 21-37
18 Lin. N. C. (1982). Control of Structural Qualty, Proceeding of the NATO Advanced Study Institute on Reliability Theory and its Application in Structural and Soil Mechanics
19 National Research Council Canada. (2010). National Building Code of Canada
20 Pham, L., Holmes, J. D., &. Leicester, R. H. (1983). Safety Indices for Wind Loading in Australia, Journal of Wind Engineering and Industrial Arerodynamics, 14, 3-14   DOI
21 Ravindra, M. K., Cornell, C .A., & Galambos. T. V. (1978). Wind and Snow Load Factors for Use in LRFD, Journal of the Structural Division, ASCE, 104(9), 1443-1457
22 Shooman, M., & Sinker, S. (1977). The Use of Consensus in Analytical Safety, Rep. POLY-EE-77-305, Polytechnic Institute of New York, Brooklyn, N. Y.
23 Simiu, E., Gabbai, R. D., & Pritz. W. P. (2008). Wind-Induced Tall Building Response: a Time-Domain Approach, Wind and Structures, 11(6), 427-440   DOI
24 Standard Australia and New Zealand. Australian/ New Zealand Standards. (2002). Structural Design Actions: Part2: Wind Actions, AS/NZS 1170.2
25 Vickery, B. J. (1970). On the Reliability of Gust Loading Factors, Proceeding of the Technical Meeting Concerning Wind Loads on Buildings and Structures, Building Science Series 30, National Bureau of Standards, Washington, D. C., Nov.