Study On The Failure Mechanism Of Friction Pendulum Support K8 Single-layer Spherical Reticulated Shell Structure Under Strong Earthquakes

With the rapid development of space structure technology,this paper starts from the failure mode and failure mechanism of the space grid structure with friction pendulum support,through the fine modeling of ANSYS finite software,puts forward the corresponding damping analysis method,studies the failure mode and mechanism of the spherical reticulated shell structure with friction pendulum support,the failure mode and mechanism of the substructure on the spherical reticulated shell structure with strong earthquake and its recovery The main work is as follows:1.Using ANSYS / LS-DYNA to study the seismic response analysis of the lattice shell structure with friction pendulum support.Through the analysis and comparison of the acceleration time history curve,kinetic energy time history curve,inclined bar axial force and inclined bar stress at the top of the structure under the earthquake action between the hinge support and the friction pendulum support,it can be concluded that the friction pendulum support can effectively reduce the seismic response of the lattice shell structure.2.The failure mode and mechanism of single-layer spherical reticulated shell under strong earthquake are studied,and the failure characteristics of d40105 friction pendulum support and hinge support are analyzed.Furthermore,the failure mode and mechanism of FPB single-layer spherical reticulated shell under different rise span ratio and roof load are studied.3.Study the failure mode of the lower support FPB spherical reticulated shell structure,analyze the influence of the lower support stiffness,and analyze the influence of rise span ratio and roof load on the failure mode of the structure.4.Put forward the application of composite friction pendulum under strong earthquake,and study the isolation mechanism of composite friction pendulum bearing,and use the finite element software ANSYS to analyze the hysteretic energy consumption characteristics and capacity of composite friction pendulum under low cycle reciprocating load.