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S. Parche, "A More Realistic Seismic Safety Calculation of R/C Structures under Multi-Directional Earthquake Excitations", in M.B. Leeming, B.H.V. Topping, (Editors), "Innovation in Engineering for Seismic Regions", Civil-Comp Press, Edinburgh, UK, pp 83-88, 1997. doi:10.4203/ccp.47.5.2

Abstract

The sense of direction and the magnitude of horizontal ground accelerations due to earthquakes are not a constant, but variable within the duration of the earthquake. Furthermore, varying vertical ground accelerations appear. As a result, columns of reinforced concrete space-frame structures suffer multi-directional and time-variable excitations during earthquakes. To analyse the structural response to those excitations more accurately, a fibre model describing the nonlinear behaviour of reinforced concrete cross sections under multi-directional actions is presented. Diagrams showing yield force couples and corresponding plastic curvature capacity as well as a computer program to calculate epsilon, kappa_y, kappa_z<->N, M_y, M_z interaction for free force- and displacement combinations are developed.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 47 INNOVATION IN ENGINEERING FOR SEISMIC REGIONS Edited by: M.B. Leeming and B.H.V. Topping Paper V.2 A More Realistic Seismic Safety Calculation of R/C Structures under Multi-Directional Earthquake Excitations S. Parche Hochtief AG, Essen, Germany doi:10.4203/ccp.47.5.2 purchase the full-text of this paper Full Bibliographic Reference for this paper S. Parche, "A More Realistic Seismic Safety Calculation of R/C Structures under Multi-Directional Earthquake Excitations", in M.B. Leeming, B.H.V. Topping, (Editors), "Innovation in Engineering for Seismic Regions", Civil-Comp Press, Edinburgh, UK, pp 83-88, 1997. doi:10.4203/ccp.47.5.2 Abstract The sense of direction and the magnitude of horizontal ground accelerations due to earthquakes are not a constant, but variable within the duration of the earthquake. Furthermore, varying vertical ground accelerations appear. As a result, columns of reinforced concrete space-frame structures suffer multi-directional and time-variable excitations during earthquakes. To analyse the structural response to those excitations more accurately, a fibre model describing the nonlinear behaviour of reinforced concrete cross sections under multi-directional actions is presented. Diagrams showing yield force couples and corresponding plastic curvature capacity as well as a computer program to calculate epsilon, kappa_y, kappa_z<->N, M_y, M_z interaction for free force- and displacement combinations are developed. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £35 +P&P)
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