Seismic Design of Geosynthetic-Reinforced Soil Bridge Abutments with Modular Block Facing (2012) / Chapter Skim
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NCHRP Project 12-59(01) Seismic Design and Construction of Geosynthetic-Reinforced Soil (GRS)
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2 The objective of this research was to extend the earlier research reported in NCHRP Report 556 to consider seismic loading conditions and thereby provide a more comprehensive basis for developing rational guidelines for design and construction of GRS abutments and approaches with modular-block facing. This research began with a comprehensive literature review on seismic performance of reinforced-soil structures.
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3 appropriate vibratory isolation of the bridge superstructure from the foundation abutment is important to ensure good structural performance. Observations from the shake-table testing and published data on seismic behavior of GRS walls were used to validate a finite element representation of GRS abutments with flexible facing.
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From page 8... ...
4 Chapter 8 presents construction guidelines for GRS abutments subject to seismic loading. These guidelines for earthwork construction control are essentially the same as those proposed in NCHRP Report 556 for static loading situations.
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