International Journal of Civil and Structural Engineering

Volume 3 Issue 2 2012          Pages: 346 - 359                         << Previous      Next>>

Seismic performance of semi-rigid base connection model of cable-stayed bridge tower

Author Information:

Shehata E. Abdel Raheem1, Toshiro Hayashikawa2
1- Assoc. Prof., Taibah University, Madinah Munawarh, KSA (on leave, Assiut University, Egypt
2- Prof., Graduate School of Engineering, Hokkaido University, Sapporo, Japan

ABSTRACT

A quite general base connection modeling capable of accurately representing material and geometrical nonlinear behavior of the base plate and arbitrary nonlinear contact with concrete foundation has been demonstrated and its implementation in a finite element nonlinear seismic analysis is presented. A time domain finite element methodology for nonlinear dynamic analysis problem that accounts for base connection lift-off and the inelastic behavior of anchor bolts through an incremental-iterative procedure is developed. A representative problem of cable-stayed bridges tower subjected to strong ground motion is analyzed. The maximum bearing stress on the concrete foundation as well as the tension force per anchor bolt that necessary to design the anchorage system is computed.

Keywords: Bridge tower, Cable-stayed bridges, Energy dissipation, Seismic design, Nonlinear response,Base connection, Finite element modeling, Base plate lift-off.

doi:10.6088/ijcser.201203013033

Copyright: © 2012 by the author(s), licensee Integrated Publishing Association. This is an open-access article distributed under the terms of the Creative Commons Attribution License (3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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