DYMAT 2009
Volume 1, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 825 - 831
Section Industrial Applications
Published online 15 September 2009
DYMAT 2009 (2009) 825-831
DOI: 10.1051/dymat/2009115

Rigid-plastic seismic design of reinforced concrete structures to multiple earthquake excitations

F.C. Lin1, 2, L.G. Yun1 and Z.S. Yuan1

1  College of Architecture and Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024 Shanxi, PR China
2  Taiyuan City Vocational College, No. 3 Xinghua Street Taiyuan, 030027 Shanxi, PR China

Published online: 15 September 2009

Based on the energy dissipation behavior of reinforced concrete frame withstand the strong earthquake, in this paper a seismic design procedure for reinforced concrete frame is proposed. The main idea is to neglect the contribution of the elastic by dynamic characteristic of the structure and the mechanical behavior of structure energy dissipation is described by the rigid-plastic perfectly. The structure may be designed in such a way that the rearranged plastic hinges ‘perform’ mainly in the plastic range to dissipate energy and the remaining part in the rigid domain in order to avoid collapsing under the strong earthquake. The procedure is based on the plasticity namely the choice of a suitable collapse mechanism and the transition from a multi-storey system to an equivalent Rigid-Plastic Oscillator. It is shown that this allows the determination of the structure ultimate bearing capacity with respect to a pre-defined performance parameter using a rigid-plastic spectrum. This procedure simplifies the design structures to survive strong earthquakes. The procedure is used in a 3-storey-reinforced frame design. The results of comparison with refined Elasto-Plastic Time-History Analysis show good agreement.

© EDP Sciences 2009