Experimental investigation of the cyclic response of bolted angles in gravity beam-column connections for enhanced seismic performance

T. Beland, R. Tremblay, L. A. Fahnestock, E. M. Hines, C. R. Bradley, J. G. Sizemore, A. Davaran

Research output: Contribution to journalConference articlepeer-review

Abstract

This paper presents work that is in progress towards developing a better understanding of beam-column connection behavior in conventional steel buildings in which bolted top and seat angles are used to enhance the contribution of the gravity system for seismic response. An extensive experimental program investigating the nonlinear behavior of 140 bolted angles to examine the influence of several geometrical parameters is described, as well as an upcoming experimental program of 22 full-scale beam-column connections under combined gravity and cyclic loads. The experimental results are used to develop and calibrate nonlinear models in order to estimate the contribution of the gravity system in the building's reserve capacity under seismic load through numerical simulations. An example of numerical simulation using the OpenSEES software is also presented to illustrate the gravity connection influence as well as the potential of adding bolted top and seat angles to the connections to further enhance the building's reserve capacity.

Keywords

  • Bolted angles
  • Gravity connection
  • Numerical modeling
  • Reserve capacity
  • Seismic load

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

Fingerprint Dive into the research topics of 'Experimental investigation of the cyclic response of bolted angles in gravity beam-column connections for enhanced seismic performance'. Together they form a unique fingerprint.

Cite this