SEISMIC EVALUATION OF EARTHQUAKE RESISTANT AND RETROFITTING MEASURES OF STONE MASONRY HOUSES

摘要

Full scale models of one storeyed stone masonry houses with two different combinations of strengthening measures have been tested under progressively increasing intensity of shock on shock table facility. After the damage of models during shock tabie testing, these are retrofitted by existing techniques prescribed in the IS code and tested again. A three-dimensional (3D) elastic analysis of the tested structure has also been carried out by finite element method. The elastic dynamic response obtained by response spectrum method for signatures of shock and shear stresses in walls has also been computed to determine region of cracking. The codat provisions of earthquake resistance measures are effective in improving the behaviour of stone masonry models. But the cracking in the piers of walls still occur. There is a good agreement in the region of cracking in the shock table tested model with that determined by finite element analysis.