Seismic Behavior of Flanged Masonry Shear Walls. Final Report

摘要

In the research described here, both experimental and theoretical studies werecarried out to investigate the seismic behavior of flanged masonry walls. Based on section analysis, dimensionless design charts and tables for flexural strength, ductility and equivalent stiffness of both unconfined and confined T-section masonry walls have been produced. An inelastic structural component model (SCM) for flanged masonry walls was developed to simulate the overall behavior of a single flanged wall or a T-section component in masonry assemblages. Together with the model, unsymmetrical hysteresis loops for flanged masonry walls were proposed to allow non-linear time-history response analyses. Parallel to the analytical work, the experimental studies involved both pseudo-static and dynamic shake table tests of full scale flanged masonry walls. The experiments investigated the effects of various parameters on the performance of flanged masonry walls and their real response under earthquake attacks. The test data also provide verifications of the analytical models.