engleski

Validation of simplified methods for modeling of soil with comparison to experimentally tested scaled model

A frequent dilemma in seismic design of buildings founded on soft soils is how to include soil compliance in numerical models. Although various international building codes propose methods for soil-structure interaction (SSI) modeling, common engineering practice is to model and design buildings as being fixed into the ground. Different codes propose different methods for including SSI effects into the seismic design of buildings and they are mostly based upon impedance functions. Impedance functions serve as an efficient replacement for demanding soil models under buildings. Since codes from around the world use different expressions and different models for soil modeling, numerical research and parametric study on a scaled model of a two- dimensional frame is conducted in order to determine the efficiency of each tested method. To verify the efficiency of the tested methods, a numerical model was developed in which a frame model was subjected to nonlin-ear static pushover analysis. Results obtained from the numerical analysis are compared to the results obtained on the experimentally tested frame at the Laboratory for experimental mechanics at the Faculty of Civil Engineering and Architecture Osijek.

Soil-Structure Interaction ; Numerical Research ; Experiment ; Soil Compliance ; Norms

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