Title: Mat Foundation Design a Soil-Structure Interaction Problem
Author(s): J. F. Horvilleur and V. B. Patel
Publication: Symposium Paper
Appears on pages(s): 51-94
Keywords: bending moments; creep properties; mat foundations; pressure; settlement (structural); soil mechanics; stiffness; structural analysis; Design
Reviews methods used in preliminary design of mat foundations, as well as procedures used in final analysis and design. Emphasis is placed on the effect that different structural and soil properties have on mat design bending moments and pressure distribution. Using results of parametric studies on two actual mat foundations, the sensitivity of mat moments and pressure distribution to changes in design parameters is investigated. The soil-dishing phenomena and its effect on mat structural design is discussed. The effect that superstructure stiffness has on mat behavior and the effect that differential settlement within the mat has in the superstructure are also presented and discussed. Finally, specific recommendations are provided regarding selection of proper structural and soil properties to be used in analysis and design of foundation mats.