Suspension Elbow Joint Viscous Damping Energy Dissipation System Experimental Research And Analysis

In recent years,with the extensive application of viscous dampers in architecture,the main supporting forms of viscous dampers have become more and more abundant.Traditional herringbone support is the most common form of support.In high-level and high-rise buildings,the tiny displacement between the layers,using traditional herringbone support cannot make damper to give full play to the role in energy consumption,in order to make full use of the displacement between layers of horizontal earthquake,some scholars will toggle type support system arrangement on the tall building boom of the truss,the suspension elbow joint energy dissipation system.The research shows that the suspension elbow joint system is more effective than the ordinary elbow joint and the traditional herringbone support in the super-tall buildings.Section in order to further study suspension elbow type viscous damping energy dissipation system,the paper designed a suspension elbow joint energy dissipation structures and a traditional herringbone support specimens,for both the output and the displacement magnification,damper has carried on the detailed analysis of energy consumption,and then on the basis of the model validity is verified for suspension elbow section formula structure parameters are analyzed.The main research contents are as follows:(1)In this paper,we design a test specimen of the arrangement mechanism of the hanging elbow joint viscous damper and the ordinary vertical viscous damper arrangement mechanism,and conduct the sinusoidal displacement control dynamic loading test.Before the dynamic loading test,in order to prove that the performance of the viscous damper used in the test has indeed reached the design and specification requirements,the test of the experimental damper was carried out.Finally,the purpose and content of the dynamic loading test,the design and production process of the test specimen,the equipment used in the test data collection,the equipment used in the test loading and the method of the test loading are comprehensively introduced,which provides a reliable reference for the follow-up research on similar tests.(2)By means of experiments,the relation between displacement magnification,output and energy dissipation of the cantilever type viscous dampers is obtained by comparing the energy dissipation system of the cantilever type viscous dampers with the vertical support of the traditional herring-shape,which indicates the superiority of the energy dissipation system of the cantilever type viscous dampers.(3)By means of finite element analysis,based on show the validity of test model,to explain the geometric nonlinear damper and the influence of the loading end output and energy consumption,and to study the other parameters,such as pin clearance,cantilever truss elastic stiffness on the influence of damper’s energy dissipation,and in the case of guarantee other parameters constant,analyzed the parameters to expand.(4)on the basis of the verified the feasibility of energy dissipation system,to verify its feasibility and validity of high-rise structure seismic,section will hang elbow type viscous damping energy consumption and energy dissipation system damping layer,forming section hanging elbow type viscous damping layer,and using the perform-3d finite element analysis software and the traditional viscous damping layer and no control model under different level earthquake effect on seismic response of the structure control effect were analyzed.The results show that the energy dissipation system of the hanging elbow joint viscous damper has good energy dissipation capacity and can effectively amplify the displacement,output and energy dissipation of the damper.