Seismic Evaluation of URM Building with Flexible Diaphragm using Nonlinear Static and Nonlinear Dynamic Analysis
Rahul Brijpuriya
2019
International Journal for Research in Applied Science and Engineering Technology
In the rural area, most of the construction is made with unreinforced brick masonry structure. According to census 2011, about 85% of construction is made with brick masonry without any engineering supervision generally called the nonengineered building, brick masonry structure is easy to construct because of low cost and ease of availability of the material. In the past few years during the earthquake, it is observed that masonry building performed worst, results loss of lives as well as
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... ty, therefore demand of upgrading or retrofitting the structure is very important to save lives and loss of property, for this purpose seismic evaluation of this type of structure is necessary. But the seismic evaluation of this type of structure is still a challenge due to many reasons. Present work investigates the seismic evaluation of the brick masonry structure with a flexible diaphragm, situated in the high seismic zone. Nonlinear analysis (static and dynamic) using SAP2000 is conducted on two types of the model (Brick masonry building without bond beams and brick masonry building with bond beams) and comparative study is carried out for the same models. IS 1893:2016 (part-1), FEMA 356 (2009), ASCE 7-16 and NEHRP guidelines are followed for Seismic evaluation of the building, results show the building with bond beams and column is performed better. ©IJRASET: All Rights are Reserved VII. CONCLUSIONS A. Basis of the Nonlinear static Analysis 1) Demand is more than the capacity for the masonry building without bond beams. 2) Demand is less than the capacity for the masonry building with bond beams. Hence building with bond beam perform better as compared to conventional building i.e. building without masonry. B. Basis Of The Nonlinear Dynamic Analysis 1) Base shear is maximum for the Chi-Chi TCU068 in both the cases with and without bond beam. 2) The overturning moment is maximum for Chi-Chi TCU068 in both the cases with and without bond beam. 3) Story displacement is more in model A (without bond beam) as compared to the Model B (with bond beam). 4) Story drift is maximum for model A which is without beam as compared to the model B with the bond beam. On the basis of the story displacement observed in both the model, we can say that the model with bond beam displaced less as compare to model A (without bond beam).
doi:10.22214/ijraset.2019.7092
fatcat:y2paufehjrh6pgv76dkn7m2eny