Study On Lateral Performance Of EPSC Latticed Structure Concrete Wall With Opening Holes

EPSC latticed as a new type lateral structure of concrete wall,its application is in the promotion of our country start level.Wall in practical engineering need to open holes which the EPSC latticed wall stress effect on the properties is not clear.At the same time opened holes in the wall for structural seismic performance of structure also need our in-depth study.Based on the above,the following work:(1)Finite element analysis method,in order to the hole size,the hole position,the hole type and quantity of the holes as parameter,under the action of the load EPSC latti ce wall hole deformation situation,the horizontal bearing capacity of concrete and the s tress distribution did some comparison analysis.The results showed that the hole size,p osition of the hole,the hole type and quantity of the holes made a certain influence of t he EPSC lattice type horizontal bearing capacity of the wall,which the hole size on the bearing capacity of the wall body level influence was more obvious than other paramet ers,and according to the relationship between the rate of open hole and horizontal beari ng capacity,fitting out the horizontal bearing capacity reduction coefficient formula.(2)The structure of EPSC lattice concrete wall which had the different hole sizes di d some comparative analysis in Natural frequency,the natural vibration period,interlay er displacement,displacement angle.Results showed that the hole order,uniform distri bution,a reasonable number of cases,with the increase of the hole size,more obvious t he single limb wall partial flexible features,smaller the structural lateral stiffness.The specific performed in the earthquake under the action of the whole structure displaceme nt,the interlayer displacement,and the interlayer displacement angle increased.(3)The current specification combined with the paper fitting the reduction coefficie nt formula of the horizontal bearing capacity and application programming software Vis ual Basic 6.0 compiled the EPSC lattice type concrete wall section bearing capacity cal culation software.It,in allusion to the bearing capacity calculation problem of a certain inclined wall section of the structure,simplified the hand calculation process and saves the design time.