Earthquake Response Analysis Of Yielding Structures Coupled With Vertically Restrained Rocking Walls

Keywords

earthquake engineering; inelastic structures; posttensioned tendons; recentering; rocking wall; seismic protection

Abstract

This paper investigates the inelastic response of a yielding structure coupled with a vertically restrained rocking wall. The paper first derives the nonlinear equations of motion of a yielding oscillator coupled with a vertically restrained rocking wall, and the dependability of the one-degree of freedom idealization is validated against the nonlinear time-history response analysis of a well-known nine-story moment-resisting steel frame that is coupled with a stepping, vertically restrained rocking wall. While, the coupling of weak building frames with rocking walls is an efficient strategy that controls inelastic deformations by enforcing a uniform interstory-drift distribution, therefore, avoiding mid-story failures, the paper shows that even for medium-rise buildings the effect of vertical tendons on the inelastic structural response is marginal, with the exception of increasing the vertical reactions at the pivoting points of the rocking wall. Accordingly, the paper concludes that for medium-rise to high-rise buildings, vertical tendons in rocking walls are not beneficial.

Publication Date

12-1-2018

Publication Title

Earthquake Engineering and Structural Dynamics

Volume

47

Issue

15

Number of Pages

2965-2984

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/eqe.3116

Socpus ID

85053482173 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85053482173

This document is currently not available here.

Share

COinS