Verification of the equivalent stiffness method on the example of a model study of a two-span folding beam based on fixed supports

J. Marszalek, M. Piechota
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引用次数: 0

Abstract

The article covers the analysis of the equivalent stiffness method in a two-span folding beam based on fixed supports, carried out on the basis of model tests. The essence of this analysis was to check the deformation of the entire beam for the constant equivalent stiffness. For this purpose, detailed measurements of deflections at each beam connection were made for different: size of assembly clearances, load values and length of the spans. Then, the results of the measurements were compared with the theoretical results. Theoretical analysis was carried out using the strict method and the Finite Difference Method. The conducted analysis confirmed the possibility of adopting constant equivalent stiffness in two-span folding beams. This is a continuation of considerations regarding the work of multi-span folding beams. Keywords: civil engineering, folding bridges, equivalent stiffness, assembly clearance.
以固定支承两跨折叠梁为例,验证了等效刚度法的有效性
本文在模型试验的基础上,对基于固定支撑的两跨折叠梁的等效刚度法进行了分析。该分析的实质是在等效刚度不变的情况下对整个梁的变形进行校核。为此,对每个梁连接处的挠度进行了详细测量,以适应不同的装配间隙大小、荷载值和跨度长度。然后,将测量结果与理论结果进行了比较。采用严格法和有限差分法进行了理论分析。分析证实了在两跨折叠梁中采用恒等刚度的可能性。这是关于多跨折叠梁工作的考虑的延续。关键词:土木工程,折叠桥,等效刚度,装配间隙。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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