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With slabs of steel concrete ring beam joint experimental study and finite element analysis

Author: LiZhiNan
Tutor: YeBaiLong
School: Central South University
Course: Structural Engineering
Keywords: steel tube confined concrete ring beam joints floor no-linear finite element
CLC: TU398.9
Type: Master's thesis
Year: 2008
Downloads: 105
Quote: 1
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Abstract


With the continual perfection of steel tube confined concrete theory, the structure of steel tube confined concrete reflects the wide application. However, due to the current lack of a reliable and convenient constructed, reasonably priced node type, the development of steel tube confined concrete, to some extent, has been limited.Aim at the above-mentioned problem, by the method of experimental research and theoretical analysis, also combine actual project, a systematic study on the thorny issues of steel tube confined concrete ring beam joints’ force performance, structural measures and design methods, and a qualitative analysis about the influence of floor slab factors and reinforcement has been focused on in this paper.1、The finite element program ANSYS is used to carry out nonlinear static analysis to the steel tube confined concrete ring beam joints. Through the calculation and analysis to a number finite element model of concrete ring beam joints, the influence of floor slab factors and reinforcement to the steel tube confined concrete ring beam joints’ force performance has been successful discussed.2、three steel tube confined concrete ring beam joints has been designed by actual project. Through the analysis of the deflection, the width of cracks, the strain distribution in the concrete and in the steel, the operating principle of the steel tube confined concrete ring beam joints has been get . Experimental studies show: in the actual project, due to floor take part in the work, the ultimate load increased three times and the deflection in the end of beam also significantly lowered. The steel tube confined concrete ring beam joints with floor shows excellent force performance.3、Through the comparative analysis of The finite element results and the experimental results, the steel tube confined concrete ring beam joints’ stress and strain distribution and operating principle has been further confirmed and some design advice has been suggested.

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