Effect of arch height on wind load in shape dome structure

Document Type : Research Article

Authors

1 M.Sc. Student of Civil Engineering, Hakim Sabzevari University

2 Assistant Professor, Department of Civil Engineering, Hakim Sabzevari University

Abstract

In an optimal design of a dome building, the outer shell with a curved shape, plays an important role in the architectural approach, bearing capacity, and the structural strength in vertical and lateral loads. In this research, the effect of the arch in domes against the wind is studied, numerically. For this purpose, domes with fixed height–diameter proportion in Type C ground and with the speed and turbulence intensity matching ASCE7 regulations are numerically simulated and the amounts of pressure coefficients (Cp < /sub>) are represented on the central line corresponding to the wind direction and the rings around the dome with different heights including 0, 25h, 0.5h, 0.75h, and h. Results indicated the great effect of arch height on Cp < /sub> and the percent of under pressure surfaces.

Keywords

Main Subjects

References

[1] T. MAHDI, PERFORMANCE OF TRADITIONAL ARCHES, VAULTS AND DOMES IN THE 2003 BAM EARTHQUAKE, ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), 5(3-4) (2004) -.
[2] F.J. Maher, Wind loads on basic dome shapes, Journal of the Structural Division, 91(3) (1965) 219-228.
[3] C. Letchford, P. Sarkar, Mean and fluctuating wind loads on rough and smooth parabolic domes, Journal of wind engineering and industrial aerodynamics, 88(1) (2000) 101-117.
[4] A.S.o.C. Engineers, ASCE7-98 Standard-Minimum Design Loads for Buildings and Other Structures, in, American Society of Civil Engineers Reston, Virginia, 1999.
[5] C. Cheng, C. Fu, Characteristic of wind loads on a hemispherical dome in smooth flow and turbulent boundary layer flow, Journal of wind engineering and industrial aerodynamics, 98(6-7) (2010) 328-344.
[6] M.W. Kuenstle, Escarpment Study in a Virtual Flow Environment A Comparative Analysis of a Single Building Type Modeled in Varying Topological Situations [Escarpment Study in a Virtual Flow Environment. A Comparative Analysis of a Single Building Type Modeled in Varying Topological Situations],  (2002).
[7] A. Horr, M. Safi, S. Alavinasab, Computational wind tunnel analyses for large domes using CFD theory, International Journal of Space Structures, 18(2) (2003) 85-104.
[8] J. Lin, C. Chang, N. Shang, Computational Simulation and Comparison of the Effect of Different Surroundings on Wind Loads on Domed Structures, Tamkang Journal of Science and Engineering, 9(3) (2006) 291.
[9] N. Kharoua, L. Khezzar, Large eddy simulation study of turbulent flow around smooth and rough domes, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 227(12) (2013) 2686-2700.
[10] I. Vizotto, A.M. Ferreira, Wind force coefficients on hexagonal free form shell, Engineering Structures, 83 (2015) 17-29.
[11] H. Sadeghi, M. Heristchian, A. Aziminejad, H. Nooshin, Wind effect on grooved and scallop domes, Engineering Structures, 148 (2017) 436-450.
[12] Y. Zhou, Y. Li, Y. Zhang, A. Yoshida, Characteristics of Wind Load on Spatial Structures with Typical Shapes due to Aerodynamic Geometrical Parameters and Terrain Type, Advances in Civil Engineering, 2018 (2018).
[13] m. Ebrahimi , m. yahyaei Investigation of opening effect on behavior of domes under the wind load using computational wind tunne, 2007.
[14] Y. Sun, Y. Wu, Y. Qiu, Y. Tamura, Effects of free-stream turbulence and Reynolds number on the aerodynamic characteristics of a semicylindrical roof, Journal of Structural Engineering, 141(9) (2015) 04014230.
[15] F. Salajegheh , E. Salajegheh Computation of wind load on Barrel with use of numerical simulation, in, Shahid bahonar kerman university, 2017.
[16] A. Bond, A. Harris, Decoding eurocode 7, CRC Press, 2006.
[17] O.C. Zienkiewicz, R.L. Taylor, R.L. Taylor, R.L. Taylor, The finite element method: solid mechanics, Butterworth-heinemann, 2000.
[18] J.N. Reddy, D.K. Gartling, The finite element method in heat transfer and fluid dynamics, CRC press, 2010.
[19] A. Fluent, ® ANSYS [ANSYS Fluent], 18.2, Help System, User's Guide/Theory Guide, ANSYS, Inc., Canonsburg, PA, accessed Sept, 9 (2018) 2019.
Amirkabir Journal of Civil Engineering
Volume 53, Issue 2
May 2021
Pages 627-638

Files

Share

How to cite

Statistics