Dynamic Elasto-Plastic Analysis on the Steel Spatial Arch Truss with 30m Span and 0.2 Rise-Span Ratio

Abstract:

Article Preview

In this paper, the elasto-plastic dynamic analysis on the steel spatial arch truss with 30m span and 0.2 rise-span ratio is carried out under earthquake action with SAP2000. In the analyses, the geometric and material nonlinear effects are considered at the same time based on the plastic-hinge theory. Under the action of EL wave with the peak increasing gradually, its elasto-plastic dynamic responses have been obtained. The results show that its failure mode under the earthquake action is elasto-plastic dynamic buckling; that its critical peak acceleration of EL earthquake wave when applied in X direction is 654gal, and is 1108gal when applied in Z direction; The ratio of its maximal node horizontal displacement and its structural height is 1/102, and its displacement ductility coefficient is 4.215 and the ratio of its bars with plastic hinge appearing when buckling is 15.54% when EL-Centro waves applied on structure in X direction; The ratio of its maximal node vertical displacement and its structural span is 1/994, and its displacement ductility coefficient is 1.338 and the ratio of its bars with plastic hinge appearing when buckling is 11.66% when EL-Centro waves applied in Z direction.

Info:

Periodical:

Edited by:

Han Zhao

Pages:

1101-1104

DOI:

10.4028/www.scientific.net/AMM.130-134.1101

Citation:

H. W. Li et al., "Dynamic Elasto-Plastic Analysis on the Steel Spatial Arch Truss with 30m Span and 0.2 Rise-Span Ratio", Applied Mechanics and Materials, Vols. 130-134, pp. 1101-1104, 2012

Online since:

October 2011

Export:

Price:

$35.00

[1] Haiwang LI and Xuefeng SHU and Fei ZHI. A new function for large-span civil buildings Proceedings of the International Association for Shell and Spatial Structures (IASS) Symposium 2009, 28 September – 2 October 2009, Universidad Politecnica de Valencia, Spain: 358-359.

[2] Civil King Software Technology Co., Ltd. China institute of Building Standard Design & Research. Usage guide to Structure Analysis Program 2000 Chinese edition [CP]. China Communications Press.

[3] GB50011-2001(2008 edition) Code for seismic design of buildings[S]. Beijing: China architecture & building press, (2008).

[4] FEMA 356 The Seismic Rehabilitation of Buildings[S]. Federal Emergency Management Agency, (2000).

[5] Shen Shi-zhao, Chen Xin. Dynamic stability of grid structure[M]. Beijing, Science Press, (1999).

[6] LI Haiwang and LI Jianxian and ZHI Fei and MA Fu and QIN Dongqi. A parameter study on dynamic buckling of spatial arch trusses under seismic action. Proceedings of the 6th International Conference on Computation of Shell and Spatial Structures IASS-IACM 2008: Spanning Nano to Mega, 28-31 May 2008, Cornell University, Ithaca, NY, USA.

DOI: 10.1016/j.engstruct.2007.07.002

In order to see related information, you need to Login.