The Study of Different Geometrical Parameter Effects for Single Grid Layers of Space Structure on Performance Level for Vertical Load of Earthquake
American Journal of Civil Engineering
Volume 3, Issue 2-2, March 2015, Pages: 10-17
Received: Jan. 13, 2015;
Accepted: Jan. 17, 2015;
Published: Feb. 8, 2015
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Hamid Shahrabadi, Department of Civil Engineering, Chabahar Maritime University, Chabahar, Iran
Acceptance and popularity of space structure among architectures and designers is due to reasons such as: great spans covering, magnificent architecture, extremely low weight, the ease of building process, speed in installation, quality of response to earthquake, etc. Considering that usually large population live in space structured buildings, resistance and safety of the structures against destructive factors such as earthquake is very important. In this paper, we examine the effects of different geometrical parameters such as: type and shape of support on performance level of single grid layer of space structures and their performance at different risk stages are examined based on the regulations stated in Iranian Standard for Retrofitting of Existing Buildings. Since there is no acceptance criteria in international codes defined for determination of performance level (among Iranian code) in space structures, these criteria are suggested primarily. Finally performance points and levels of these structures are obtained by illustrating the capacity curves. Nonlinear static analyses (pushover) are carried out on the selected models using SAP and ANSYS software. Performance levels and capacity spectrums are obtained by FEMA and ATC40 bylaw.
The Study of Different Geometrical Parameter Effects for Single Grid Layers of Space Structure on Performance Level for Vertical Load of Earthquake, American Journal of Civil Engineering. Special Issue: Research and Practices of Civil Engineering in Developing Countries.
Vol. 3, No. 2-2,
2015, pp. 10-17.
H. Nooshin, “Space Structure and Configuration Processing,” Structural Engineering and Material, Vol. 1, No. 3, pp. 329-336, 1998.
H. Nooshin, Z.S. Makowski, “Some Aspects of the Behavior of Square Diagonal Grids,” International Journal of Building Science, pp. 267-275, Des 1974.
M. Layegh Rafat, D. Layegh Rafat, M. Ghalehnovi, “The Examination of Performance Level of Barrel Vaults Space Structure by Capacity Spectrum Method,” 1st International Conference on Seismic Retrofitting, Iran, Tabriz, 2008.
P. Faifar, “Capacity spectrum method based on inelastic demand spectra,” Earthquake engineering and structural dynamics, Vol. 28, pp. 979-993, 1999.
A.K. Chopra, R.K. Goel, “A model pushover procedure to estimate seismic demands for building,” Report No. PEER-2001/03, 1999.
R.B. Malla, L. Serret, “Double Layer Grids: Review of Static and Thermal Analysis Methods,” Journal of Structure Engineering, Vol. 122, NO. 8, 1996.
R.B. Malla, L. Serret, “Double Layer Grids: Review of Dynamic Analysis Methods,” Journal of Structure Engineering, Vol. 122, NO. 8, 1996.
H.A. Moghaddam, “Seismic Behavior of Space Structure,” International Journal of Space Structure, Vol. 15, No. 2, pp. 119-134, 2000.
Sh. Malek, S.M. Ardakani, “Study Seismic Behavior of Double Layer Barrel Vaults Space Structure,” 1st International Conference on Seismic Retrofitting, Iran, Tabriz, 2008.
R. Kamali Salehabad, E. Salajegheh, “The Provision of Vertical Reflection Spectrum and Usage of them for Space Structure,” 2nd National Conference on Spatial Structure, Iran, Tehran, 2007.
G. Victor, “Instability Problems in Space Structure,” Elsevier Applied Science Publisher, Vol. 7, No. 4, pp. 321-331, 1985.
“Euro Code8: Design Provision for Earthquake Resistance of Structure – Part 1-1: General Rules-Seismic Action and General Requirements for Structure,” European Committee for Standardization (CEN), 2002.
FEMA273 (Federal Emergency Management Agency), Washington D.C, USA, Oct 1997.
ATC40 (Applied Technology Council), Redwood City, California, USA, Nov 1996.
“Instruction for Seismic Rehabilitation of Existing Buildings,” Management and Planning Organization of Islamic Republic of Iran, No 360, 2007.