Experimental design for a half-scale shaking table test of a geosynthetic-reinforced soil bridge abutment

Yewei Zheng, Andrew C. Sander, Wenyong Rong, John S. McCartney, Patrick J. Fox, P. Benson Shing

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

This paper presents an experimental study on the seismic performance of a half-scale geosynthetic-reinforced soil (GRS) bridge abutment. Experimental design of the scale model followed established similitude relationships for shaking table testing in a 1 g gravitational field. This involved scaling of model geometry, reinforcement and backfill stiffness, bridge load, and characteristics of the earthquake motions. The GRS abutment was constructed using well-graded sand, modular facing blocks, and uniaxial geogrid reinforcements with a vertical spacing of 0.15 m in both the longitudinal and transverse directions. The bridge deck was placed on the GRS abutment at one end and supported by a concrete wall resting on a sliding platform off the shaking table at the other end. The table was connected to the base of the support wall with steel beams to transmit the table motions. The measured lateral facing displacements and bridge seat settlements during application of a series of earthquake motions in the longitudinal direction are presented and indicate good seismic performance of the GRS bridge abutment.

Original languageEnglish (US)
Pages (from-to)54-63
Number of pages10
JournalGeotechnical Special Publication
Issue numberGSP 278
DOIs
StatePublished - Jan 1 2017
EventGeotechnical Frontiers 2017 - Orlando, United States
Duration: Mar 12 2017Mar 15 2017

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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