Comparative analysis of computer programs for nonlinear seismic analysis of contemporary masonry buildings

摘要

The diploma contains a comparative analysis of three different computer programs for udnon-linear seismic analysis of masonry buildings, restricted to modern buildings. Prototypes or full scale buildings, as well as model or scaled buildings were subjected to the analysis. The assessment of model structures was necessary for the analysis of effectiveness of each software in the response estimation of model masonry buildings, tested on the shaking table. For the purpose of design of model buildings, complete model similitude was taken into account.udThe diploma consists of a theoretical part, with an explanation of parts of standards that are used for the calculation of the seismic resistance of new masonry buildings and on which discussed programs are based (Sremb, 3Muri and AmQuake). A description of the simplified method N2 is given as well as a short description of operation for all three programs. In the computation phase, the particular buildings are analyzed. On the basis of the acquired results, a comparison is made between the outputs of different programs. Finally, the numerical results are compared to those gained from the experiment on the shaking table.udIn the conclusion, based on acquired results, we can state that computer programs give conservative results. Due to various applied simplifications, different levels of compliance of standards and other factors, the numeric results often do not reflect the actual state. Despite all, it is possible to make a good approximation of the actual response with simplified numeric models that take into account the global response mechanism instead of the storey response mechanism.ud