Study On The Shock Absorption Of K8-Type Kwewitt Single-Layer Spherical Reticulated Shell

In recent years,with the rapid development of social economy,building structure models are more and more diversified.Single layer latticed domes are favored by many designers in the construction of some large theaters or stadiums.However,with the increasing span of the shell structure and the continuous improvement of the function,the stability of the reticulated shell is called the first consideration by the designer,which will affect the safety and service life of the reticulated shell structure.With the development of computer technology.With the use of the finite element software,the experts and scholars can analyze the dynamic static characteristics of the nonlinear whole process of the reticulated shell structure under different states,and then get some characteristic responses under the action of dynamic and static action.In this paper,the author has studied the seismic performance of K8 single layer spherical reticulated shell with a large number of documents.Based on the finite element analysis software ANSYS,the author studies the following aspects of the dynamic and static characteristics and damping measures of a single layer spherical reticulated shell: contrasting the example model of the different reticulated shell structures By analyzing the load displacement curve and the maximum displacement time history curve,the buckling form and the instability form of the reticulated shell structure are obtained.The first 10 steps of the vibration frequency are obtained,and the comparison is made between the front and back of the installation of the shock absorbing support,and the vibration frequency of the vibration damping support will be changed and the seismic waves are input in the horizontal and vertical direction.In order to change the frequency of the earthquake and see the curve of the maximum displacement of the node with the frequency of the seismic wave under the action of different frequencies,the change of the frequency and the maximum displacement of the node in the three direction seismic wave are compared and the frequency of the vibration frequency is compared and analyzed.The influence of the vibration characteristics and the influence of the stiffness change on the vibration frequency of the vibration damping bearing and the influence coefficient of the load on the symmetrical load and the asymmetric load are compared to see whether the asymmetrical load will have a corresponding effect on its stability,and the comparative analysis of the limit bearingcapacity under the different vector span ratio is carried out to see the sagittal span.The influence of the stiffness and damping on the vibration damping of the support is studied with different stiffness and damping,and the influence of the use of the three common seismic waves on the internal force of the upper member is compared.This paper from the damping principle to seismic design of two aspects of research on the stability of the K8single-layer spherical reticulated shell damping performance.