Title

Dynamic Response Analysis Of Solitary Flexible Rocking Bodies: Modeling And Behavior Under Pulse-Like Ground Excitation

Keywords

Fem modelling; Overturning stability; Rocking structures; Seismic response

Abstract

Results obtained for rigid structures suggest that rocking can be used as seismic response modification strategy. However, actual structures are not rigid: structural elements where rocking is expected to occur are often slender and flexible. Modeling of the rocking motion and impact of flexible bodies is a challenging task. A non-linear elastic viscously damped zero-length spring rocking model, directly usable in conventional finite element software, is presented in this paper. The flexible rocking body is modeled using a conventional beam-column element with distributed masses. This model is verified by comparing its pulse excitation response to the corresponding analytical solution and validated by overturning analysis of rocking blocks subjected to a recorded ground motion excitation. The rigid rocking block model provides a good approximation of the seismic response of solitary flexible columns designed to uplift when excited by pulse-like ground motions. Guidance for development of rocking column models in ordinary finite element software is provided. © 2014 John Wiley & Sons, Ltd.

Publication Date

1-1-2014

Publication Title

Earthquake Engineering and Structural Dynamics

Volume

43

Issue

10

Number of Pages

1463-1481

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/eqe.2406

Socpus ID

84903816612 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84903816612

This document is currently not available here.

Share

COinS