Effects of upstream terrain characteristics on aerodynamic coefficients of structures

• Autorzy: Ganapathi C. S. , Harikrishna P. , Rajan S. S.

Identyfikatory

DOI

10.1016/j.acme.2017.02.005

• Języki publikacji: EN

Abstrakty

EN

Most research investigations and standards have not emphasized the effects of upstream terrain characteristics on aerodynamic coefficients of structures. Hence in this investigation, pressure measurements study on a 1:2:3 rectangular building model has been simulated through wind tunnel test under uniform, open and suburban terrain condition for 0° and 90° angles of wind incidence. From the variation of pressure and force coefficient values of present study, it is seen that the mean pressure and force coefficient values of all levels of uniform flow condition are on higher side by about 15–40% than the open and suburban terrain values for 0° angles of wind incidence as expected. However the mean pressure and force coefficient values of uniform flow condition are also showed that the values of all levels for 90° angle of wind incidence are on lower side with 20–40% difference than the boundary layer flow values when compared to the values of 0° angle of wind incidence. In addition, the mean pressure and force coefficients of present study has been compared with the Indian and international guidelines to highlight the limitations of codal standards.

Słowa kluczowe

EN

wind tunnel; aerodynamic characteristics; rectangular building model; upstream exposure

PL

tunel aerodynamiczny; model budynku; charakterystyka aerodynamiczna

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2017
• Tom: Vol. 17, no. 4
• Strony: 776--785
• Opis fizyczny: Bibliogr. 8 poz., fot., rys., wykr.

Twórcy

autor

Ganapathi C. S.

• CSIR-SERC, Chennai 600113, India

autor

Harikrishna P.

• CSIR-SERC, Chennai 600113, India

autor

Rajan S. S.

• CSIR-SERC, Chennai 600113, India

Bibliografia

• [1] J.A. Amin, A.K. Ahuja, Effects of side ratio on wind-induced pressure distribution on rectangular buildings, Journal of Structures (2013), 12 pages, Article ID 176739.
• [2] Y. Quan, Y. Liang, F. Wang, M. Gu, Wind tunnel test study on the wind pressure coefficient of claddings of high-rise buildings, Frontiers of Architecture and Civil Engineering in China 5 (4) (2011) 518–524.
• [3] N. Lin, C. Letchford, Y. Tamura, B. Liang, O. Nakamura, Characteristics of wind forces acting on tall Buildings, Journal of Wind Engineering and Industrial Aerodynamics 93 (2005) 217–242.
• [4] AS/NZS 1170.2:2002, Structural Design Actions, Part 2: Wind Actions, Australia and New Zealand, 2011.
• [5] ASCE-07, Minimum Design Loads for Buildings and Other Structures, first ed., Weston, Virginia, 2007.
• [6] GB 50009-2001, Load Code for the Design of Building Structures, China National Standard, Architecture and Building Press, China, 2011.
• [7] IS 875 (Part3) – 1987, Code of Practice for Design Loads (Other than Earthquake) for Buildings and Structures, second rev., New Delhi, 1987.
• [8] NRC-CNRC-1995, National Research Council, Canada, 1995.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)