Abstract
The design of shallow foundations is becoming an attractive choice for supporting highway bridge structures. The analysis is considered as a semi-empirical methodology that is based on linear and nonlinear models of behavior for settlement prediction. In this paper, the performance prediction methods for spread footing foundations are verified by using compiled field data based on vertical settlements measured on 23 sites of footings for 12 highway bridges selected in Ohio and Northeast of the United States. Six settlement prediction methods are selected for calculation immediate settlement of spread footings on cohesionless soils for each site and compared with measured values of settlement. The settlements of footings in sandy soils are often estimated based on the results of in-situ tests. In particular, the standard penetration test (SPT) is considered in this study for all six prediction methods. Statistical parameters corresponding to each of the six settlement prediction methods are evaluated and summarized. CE Database subject headings: Shallow foundations; Foundation settlement, Cohesionless soils, Standard penetration test, Prediction methods, Statistical parameters.
Published Version
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