Bridge Superstructure Tolerance to Total and Differential Foundation Movements (2018) / Chapter Skim
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Pages 214-216
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NCHRP Project 12-103 214 9 Framework for Estimating Maximum Tolerable Support Movement The following framework is provided to guide engineers in the refined evaluation of support movement(s)
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NCHRP Project 12-103 215 Figure 9-1 - Flowchart for refined evaluation of support movements. There are many approaches to FE modeling, simulation, and analysis.
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NCHRP Project 12-103 216 if the superstructure rates 1.0 or greater, then the engineer shall conclude the imposed level of support movement as tolerable. Otherwise, if the initial or retrofit design is to be adjusted, the superstructure must be re-evaluated for support movements.
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