The Influence of near-Fault Ground Motions on the Seismic Response of Reinforced Concrete Frame

Abstract:

This paper examined the engineering characteristics of the near-fault ground motion. The four-story reinforced concrete frame was designed under Code for seismic design of building (GB50011-2010).The SAP2000 software was applied to model it, and the nonlinear time history analyses of structure were implemented. Near-fault ground motions with forward directivity and fling-step and far field ground motions were selected as seismic inputs．The results show that in terms of some structural dynamic response parameters, such as the vertex displacement, between the corner of the layer displacement, and the base shear et al., the structural responses to the ground motion with near-fault are increased by considerable magnitudes when the seismic responses of structures step into the elastic-plastic stage, compared with far-field ground motion, and the influence of damaging the mid-lower structure is significantly greater.

• Periodical: Applied Mechanics and Materials (Volumes 90-93)
• Pages: 2633-2639
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.90-93.2633
• Online since: September 2011
• Authors: Chang Hao Zhang, Wei Wang, Hu Wang, Xun Tao Wang
• Keywords: Fling-Step, Forward Directivity, Near-Fault Ground Motion, Nonlinear Time-History Analysis, Reinforced Concrete Frame, Seismic Code

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