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Multilayer bent structure industrial plant under rare earthquake in the inelastic response analysis

Author: JinRenChao
Tutor: DingJianGuo
School: Nanjing University of Technology and Engineering
Course: Structural Engineering
Keywords: Multi-layer frame structure double-T plate finite element method time-history analysis method elasto-plastic analysis
CLC: TU311.3
Type: Master's thesis
Year: 2009
Downloads: 116
Quote: 4
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Abstract


Multi-storey industrial plant is in line with the national conditions of China’s economic development demands and the strategy of sustainable development of China’s requirements. Multi-storey industrial plants usually don’t use the bent structure, but it has been used in many multi-storey industrial plants in Sunan distinct. The floor use the double-T plate and the roof use the saddle plate. This paper introduces the elastic-plastic earthquake response of multi-storey factory building. As the multi-storey bent structure are not allowed in the norms, and the seismic behavior of this type of research is rarely and this structure has been used much more in Sunan distinct, therefore, the elasto-plastic analysis of frame structures has great theoretical and practical significance through the time-history analysis method.In this paper, the eigenvalue buckling analysis for double-T plate which is in the bent structure of multi-storey factory building, reached the load limit of double-T plate , using the finite element software for double-T plate buckling analysis.Obtained the plastic load limit of the double-T plate in different size, checked wheather the buckling of duoble-T plate would happened. The plastic load limit can take reference for non-linear buckling analysis of the characteristics of the load values. Besides, showed the elasto-plastic analysis of the analytical model of the overall structure, that is, the bar-inter-layer model, to simplify the overall structure and then establish the dynamic differential equations, using the dynamic time-history analysis method for the calculation by Matlab. Using the Wilson-θmethod for numerical calculation, to solve integration directly on the dynamic differential equations and to get internal forces and deformation components of the time change. At the same time, executing the finite element dynamic analysis for different seismic waves of the overall structure, to get the displacement, accerlation and shear value under different seismic waves of the structure. Through the comparison of these two results, analy the dynamic reoponse characteristics, draw the the conclutions and rules to provide a reasonable basis for the design of multi-storey factory bent structure. Provide some references for the application of double-T plate and seismic design of the weak layer in the multi-storey bent structure.

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CLC: > Industrial Technology > Building Science > Building structure > Structure theory to calculate > Structural Mechanics > Structural Dynamics
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