ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: INELASTIC DEFORMATION ANALYSIS OF RC BRIDGE PIERS, PART 1: THEORY AND BACKGROUND

Author(s): Martin Bimschas, Eleni Chatzi, and Peter Marti

Publication: Structural Journal

Volume: 112

Issue: 3

Appears on pages(s): 267-276

Keywords: bridge piers; flexure; inelastic deformation analysis; plastic hinges; reinforced concrete; seismic design; shear; stress fields; tension shift

Date: 5/1/2015

Abstract:
In this paper, a theoretical concept is presented for the inelastic flexural deformation analysis of reinforced concrete bridge piers. The influence of shear-related inclined cracking on the flexural deformation behavior is taken into account using discontinuous stress fields for the determination of the chord forces. The goal is the development of a reliable mechanical model being able to describe the complete distribution of flexural deformations along the member and at all loading levels. The influence of various shear-carrying mechanisms on the spread of plasticity is discussed and the required mathematical relationships for a practical application are derived. The presented background gives both qualitative and quantitative insight into the phenomena and parameters influencing the flexural deformation behavior under the influence of shear-related tension shift. While the study focuses on the example of cantilever bridge piers with wall-type cross sections, the same concept can also be applied to more general members.




  

Please enter this 5 digit unlock code on the web page.