Research On The Method Of Seismic Strengthening Of Small-sized Pier In Primary And Secondary School Buildings Of Masonry Structure

The masonry structure housing structure in the form of a long history so far still get awide range of applications. With the force of the earthquake, the differences of the destructionof the house with different seismic design are huge. Seismic reinforcement of basic principlessays that the masonry seismic reinforcement method should facilitate the construction Toreduce the damage to the bearing capacity of the original structure. After years of practicetests, the reinforcement project has mature use of three reinforcements.Seismic code specified ignore its lateral stiffness to the wall of the high aspect ratiogreater than4to exclude its contribution for the seismic bearing capacity,which often leadsto a lack of the overall seismic capacity of masonry structure. Traditional masonry structurereinforcement, also did not consider the contribution of the small pier lateral stiffness ofmasonry earthquake, have not been specifically targeted at the small pier wall segment of themasonry structure reinforcement methods.Science Academy of Anhui Province advanced areinforcement method for small pier combination of small pier column. After engineeringpractice proved that it can effectively improve the seismic performance of masonry structuresIn order to better understand the combination of small pier column reinforced masonryforce performance, the comparative analysis in this article non-reinforced masonryreinforcement the specimen steel mesh mortar, small pier reinforced masonry failure pattern,hysteresis curve, ultimate strength and other mechanical parameters ased on the compressionand seismic performance of the three groups Masonry Elements. The results shows that thesmall pier reinforced masonry work performance is similar to the short shear wall, destroy themain fissure appeared in the very bottom of the specimen horizontal mortar joint, destroyedhorizontal fracture through the specimen has been destroyed, the wallsthe chip level positionby bending cracks in the vertical mortar joint cracks connectivity to form a ladder cracks.Withthe test results at the same time, this paper presents a small pier reinforced masonry bearingcapacity formula.Modeling by ANSYS software and testing three groups of specimens, we analyze theworking status under the tests two conditions and get the the stress and displacementdistribution.The results show that the the small pier reinforced masonry structuredeformation energy consumption, improved ductility and stress distribution is very obvious;and draw hysteresis curve and skeleton curves to study the seismic performance,Finally, the ultimate bearing capacity analyzes and experimental data were compared anastomosissituation is relatively good, prove the small pier trials simulated small pier reinforcedmasonry work in the actual project status, available for actual reinforcementengineeringreference.