Study On Seismic Performance Of A New Type Prefabricated Energy Dissipation Composite Wallboard

More and more prefabricated components are widely used in physical construction,but there is not much research on the seismic performance of prefabricated composite wallboards.In order to study the seismic performance and working principle of composite wallboards,this paper proposes new types of The prefabricated energy-dissipation and shock-absorbing composite wallboard and traditional sandwich panels were subjected to low-cycle reciprocating load tests and finite element simulation analysis.The main research contents and results are as follows:Low-cycle reciprocating load tests were performed on two new prefabricated energy-dissipation composite wall panels and conventional sandwich panels,and the seismic performance of different wall panels was compared.The research shows that the hysteresis curve of the new prefabricated energy-dissipation and shock-absorption composite wallboard is relatively full,and the energy-consuming original exhibits a good energy dissipation effect when it interacts with the new wallboard,indicating that the new composite wallboard scheme is feasible..The destruction of ordinary wallboards mainly occurs at the ends of the wallboards,and shear failures occur in the middle;the new prefabricated energy dissipation and vibration-damping composite wallboards mainly cause slight damage between energy-consuming originals and concrete,mainly because of concrete.The stiffness of energy-consuming originals is different,but energy-consuming originals show good results in the process of resisting lateral lateral forces.According to the test results,the correctness of the new prefabricated energy-absorbing and shock-absorbing composite wallboard and the traditional sandwich panel model is effectively verified by finite element simulation analysis.By adjusting the height,thickness and distance from the top edge of the energy-consuming elements,it is analyzed that thethickness and height of the energy-consuming originals can increase the bearing capacity of the components.The farther the energy-consuming originals are from the top edge of the wallboard,the greater the bearing capacity.low.Finite element analysis was performed on the full-scale models of different thickness energy-consuming originals and concrete slabs of different thicknesses.When the thickness of energy-consuming originals was found to be around 3mm-6mm by stress cloud diagram analysis,concrete components were severely damaged and the energy-consuming components were consumed.The effect is very poor.When the energy dissipating element is 9-12 mm,the damage of the concrete component is not great,and the damage area and effect of the energy-consuming component are much better than the performance of the energy-consuming component when the energy-consuming original is 3mm-6mm.