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首页> 外文期刊>International journal of steel structures >Experimental Research and Finite Element Analysis on Structural Stability of Disc-Buckle Type Formwork Support
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Experimental Research and Finite Element Analysis on Structural Stability of Disc-Buckle Type Formwork Support

机译：Experimental Research and Finite Element Analysis on Structural Stability of Disc-Buckle Type Formwork Support

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摘要

In order to study the structural stability of the disc-buckle type formwork support, the multi-parameter experimental analysis of the disc-buckle type formwork support structure was carried out by using experimental and finite element analysis method. The influence parameters of working conditions, lift height, diagonal bracing and sleeve on the structural stability bearing capacity was mainly considered. The regularity of the buckling direction of the vertical pole, the stress at each typical position on the vertical pole and the axial force of the vertical pole was studied based on the experimental results. Based on the characteristics of semi-rigid connection joints, the correctness of the experimental results was verified by finite element analysis, and the results show that reducing lift height and arranging diagonal bracing have remarkable influence on improving the structural stability bearing capacity. The usage of sleeves has little influence on the structural stability, and the corner pole was the worst position of the overall structural stability. The factors of working conditions and diagonal bracing have the remarkable influence on the buckling direction of the vertical pole. The factor of working condition has the most obvious influence on the stress uniformity of the vertical pole. The axial force of the vertical pole in the disc-buckle type formwork support structure presented a relatively uniform state from bottom to top in the loading process. The arrangement of diagonal bracing and the usage of sleeves have an influence on the uniformity of the axial force of the vertical pole. Compared with the finite element results, the error of the structural stability bearing capacity was within 6%, indicated that the finite element can accurately simulate the structural stability bearing capacity.

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