Investigation of seismic performance of collectors in steel building structures

Anshul Agarwal, Daniel Lizarraga, Max Beedle, Chao Hsien Li, Robert Fleischman, Richard Sause, James Ricles, Chia Ming Uang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents an overview of a newly-initiated research program on seismic collectors in steel building structures. Seismic collectors are elements that bring inertial forces to the primary vertical-plane elements of the Seismic Force-Resisting System. Due to the reversing nature of earthquake loads, collectors must alternately carry tension and compression. Collector failure is potentially catastrophic, yet little research has focused on collectors, and both the seismic behavior and demands on these elements are not well understood. Instead, current design code provisions rely on amplified collector design forces. This paper presents the plans of a research program that will use nonlinear analysis of steel collector elements in steel composite floor systems, supported by: (1) large-scale testing of isolated collector elements and connections at the NHERI Lehigh Experimental Facility; and (2) shake table testing of a single-story steel composite floor system at the NHERI UCSD Experimental Facility. The research attempts to: (1) advance knowledge on the seismic performance of collectors in steel composite floor systems under the existing practice; and (2) develop innovative collector concepts that limit the earthquake forces in the structure. Specific objectives are to determine collector properties (strength, stiffness and ductility), characteristics (load paths, limit states, damage accumulation) for different details (collector connections, deck orientation, slab details, etc.) and to quantify the role of composite floor in bracing the collector.

Original languageEnglish (US)
Title of host publication11th National Conference on Earthquake Engineering 2018, NCEE 2018
Subtitle of host publicationIntegrating Science, Engineering, and Policy
PublisherEarthquake Engineering Research Institute
Pages2002-2011
Number of pages10
ISBN (Electronic)9781510873254
StatePublished - 2018
Event11th National Conference on Earthquake Engineering 2018: Integrating Science, Engineering, and Policy, NCEE 2018 - Los Angeles, United States
Duration: Jun 25 2018Jun 29 2018

Publication series

Name11th National Conference on Earthquake Engineering 2018, NCEE 2018: Integrating Science, Engineering, and Policy
Volume4

Conference

Conference11th National Conference on Earthquake Engineering 2018: Integrating Science, Engineering, and Policy, NCEE 2018
CountryUnited States
CityLos Angeles
Period6/25/186/29/18

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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