Seismic Performance Study Of Partial Reinforced Block Masonry Frame Structure

In the concrete infilled wall frame structure, the existence of the filler wall structure in horizontal earthquake under the action of the early stiffness increases greatly, absorb a larger earthquake force. Infill walls own strength is low, under earthquake soon cracks, damage, or even collapse. Earthquake showed that most of the main frame structure damage generally lighter, the main damage occurred in the envelope structure and infill walls, this kind of destruction still cause serious loss of life and property, and the post-earthquake restoration workload, the costs are high. Reinforced masonry buildings after repeated seismic test, showing good seismic performance, so on the part of the framework of reinforced masonry Seismic behavior research, to explore the mechanism of its seismic performance.Studies are as follows:1. Describes the seismic response analysis theory and analysis procedures, the paper used finite element analysis software MIDAS/Gen8.0.2. On the three models under frequent occurred earthquake elastic analysis by response spectrum analysis, three models were calculated elastic seismic response, according to the modal mass participation factor, since the vibration period, structural displacement and maximum drift angle, the maximum column axial compression ratio were analyzed, comparing with the code limits, explore seismic performance of Partial reinforced block masonry frame structure under frequently occurred earthquake.3. On the three models under rarely occurred earthquake pushover analyzes were carried out base shear-top displacement curve, capacity and performance spectrum and demand spectrum at the point of distribution and inter-layer plastic hinge displacement angle comparative analysis, to explore the rational design of reinforced masonry frame structure portion meets the requirements of performance objectives, research seismic performance of Partial reinforced block masonry frame structure under rarely occurred earthquake. Through these studies, draw the following conclusions:frequent occurred earthquake, partial reinforced block masonry frame structure vertex displacement and maximum drift angle than the infilled frame structures were significantly reduced. Rare occurred earthquake, Partial reinforced block masonry frame structure can reduce the maximum elastic-plastic displacement angle. Partial reinforced block masonry frame structure can improve the overall frame structure seismic capacity, strengthen the security of escape routes.