WIT Press


Plastic Energy Dissipation And Ductility Of Symmetric Reinforced And Over-reinforced RC Elements' Sections

Price

Free (open access)

Paper DOI

10.2495/ER030031

Volume

72

Pages

10

Published

2003

Size

303.61 kb

Author(s)

I. Iskhakov

Abstract

Plastic energy dissipation and ductility of symmetric reinforced and over-reinforced RC elements' sections I. Iskhakov Department of Civil Engineering, College of Judea and Samaria, Ariel, Israel Abstract It is clear today that the existing spectral-acceleration based the seismic design method has several limitations. First of all, it does not into account the cumulative plastic deformation demands in earthquake resistant structure. The important factors that affect the RC section plastic energy dissipation (PED) and ductility are symmetric reinforcing of the section and over-reinforcing. The purpose of this paper is to propose the method of the calculation of RC element PED and its ductility taking into account the variety of the section reinforcement. The alternating direction of the seismic force at each second half cycle leads to corresponding changes of stress values and signs in the reinforcement. Thus, the compressive zone is periodically over-reinforced and the tensile one is poorly r

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