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首页> 外文期刊>Open Journal of Earthquake Research >The Effective Buckling Length on Numerical Study of Pipe-Sectioned Pier-Pile Integral Steel Structure
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The Effective Buckling Length on Numerical Study of Pipe-Sectioned Pier-Pile Integral Steel Structure

机译：管段墩桩整体钢结构数值研究的有效屈曲长度

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style="text-align:justify;"> Pier-Pile integral structures provide construction works with many environmental and landscape advantages. For example, the space required to construct these structures is smaller than that of other bridges due to the footing being removed, meaning that it is not necessity to greatly change the surroundings of these bridges. While there are environmental and landscape advantages, there are also a few demerits for the overall land-scape designs, including demerits in the design of this proposed structure which consists of relatively slender parts. This proposed structure has already been constructed in areas where possibility of a severe earthquake is low. However, some problems that have yet to be examined are related to the use of this proposed structure in areas where earthquakes are frequent. Lacking detailed studies of its behavior during severe earthquakes, it is currently difficult to construct these structures in Japan. Consequently, it is necessary to investigate in detail limited performance about compression and bending moment, and earthquake- resistant performance of these structures in order to resolve these problems. In this paper, It was clarified the relationship between the rigidity of the ground and the effective buckling length by buckling analysis and elasto- plastic finite deformation analysis. Moreover, it was proposed a simplified formula using a proposed characteristic value β and several factors for analysis accuracy. A simplified formula would support to determine the effective buckling length to design the pier using the load-bearing capacity curve based on the slenderness ratio parameter.
机译：style =“text-align：证明;”> Pier-pile积分结构提供了许多环境和景观优势的建筑工作。例如，构造这些结构所需的空间小于被移除的脚，这意味着它不需要大大改变这些桥的周围环境。虽然存在环境和景观优势，但整个土地景观设计也有几个缺点，包括设计的缺点，这是由相对细长的零件组成的这种结构。这一提出的结构已经在严重地震的可能性低的地区构建。然而，迄今尚未检查的一些问题与在地震频繁的区域中使用这一结构的使用有关。缺乏对其在严重地震期间行为的详细研究，目前难以在日本构建这些结构。因此，有必要详细研究压缩和弯矩的有限性能，以及这些结构的抗震性能，以解决这些问题。本文通过屈曲分析阐明了地面刚度与有效屈曲长度之间的关系和弹塑性有限变形分析。此外，提出了一种使用所提出的特征值β的简化公式，以及用于分析精度的几个因素。简化公式将支持使用基于狭长率参数的负载容量曲线来确定设计码头的有效屈曲长度。

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