Calculation And Analysis Of Core Tube-three Suspension Damping Structure Effect

With the development of human society, people improve the requirement of the construction constantly. When traditional architectural structure already can’t satisfy people’s request, the suspension structure appears. This kind of building structure system not only can transfer structural load well, but also has good damping performance. The suspension structure of nuclear shell is a kind of important suspension structure form,which is often used by people. The subject puts forward the damping concept of the nuclear shell-three suspension structure based on the nuclear shell suspension theory,which mainly discusses the parameters,relationship with the damping performance of the nuclear shell, and then analyzes the influence on the structural damping effect further.First of all, a model of nuclear shell structure is built, which contains three suspension bodies. In this model there are 21 floors and every seven floors belong to a suspended mass. The motion equation of the suspension structure and the no suspension structure of the nuclear shell are calculated based on Lagrange equation, and schedule charts of the displacement, schedule charts of the velocity and schedule charts of the acceleration for the structure are obtained by MATLAB software.Through the analysis, a conclusion is that the damping performance of the building structure is greatly improved after using the nuclear shell- three suspension structure.The displacement values of floor distribute uniformly along with the height. The more is the number of the layer, the boom length is less and the building is more unsafe. The boom length needs to have certain limitations. The values of the section bending moment,the shear force and the horizontal displacement are greatly affected by the bending modulus, should focus on the effect of these factors. Boom length can also affect the horizontal displacement of the nuclear shell, but the effect is not large. The damping effects can influent the displacement, velocity, acceleration and so on.