In Peru, lots of house buildings are constructed applying a confined masonry structure because of its good cost performance and workability. Vulnerability of these buildings can lead to serious earthquake damage. Therefore it is necessary to study nonlinear behavior of confined masonry structures to evaluate their seismic performance more appropriately.
The objective of this thesis is to study nonlinear behavior of them using experimental data of walls and a two story house building model.
The empirical equations are used to describe a envelop curve of confined masonry walls considering the strength and the associated drift at cracking, yielding, the maximum strength and the ultimate strength limit state.
These equations were developed under the collaboration with Building Research Institute and Japan Peru Center for Earthquake Engineering and Disaster Mitigation.
Firstly the accuracy of these empirical equations is discussed comparing the prediction values with the test results. The errors of the empirical equations which are the differences between the prediction values and the test results are shown for each control parameters of the envelope curve.
Secondly the author tries to predict the nonlinear behavior of a 2-story confined masonry house building using the empirical equations and so on.
To simulate test results of a 2-story building model using the STERA3D, which is three dimensional nonlinear analysis software, the hysteresis control parameters and the effect of opening in walls are approximately estimated using test data of walls. The simulation results by STERA3D are compared with the test results. And appropriateness of the simulation is discussed.