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首页> 外文会议>Structural Stability Research Council Annual Stability Conference; 20070418-21; New Orleans,LA(US) >TRANSVERSE STIFFENERS OF COMPRESSION PANELS
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TRANSVERSE STIFFENERS OF COMPRESSION PANELS

机译：压板的横向加劲肋

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摘要

This paper presents a more accurate calculation of the minimum stiffness required for transverse stiffeners of compression panels. As longitudinal stiffeners are essentially compression members, transverse stiffeners are required to control the effective length. Both the longitudinal stiffener and transverse stiffener subdivide the compression panel in a grid pattern so the relatively thin plate can carry the induced compressive load in the most efficient manner. However, the provisions for the required rigidity of transverse stiffeners in the AASHTO specifications are inconsistent. Here, the parameters that govern the behavior of the transverse stiffeners are identified theoretically using the column buckling approximation. In order to calibrate and quantify the analytical equations developed, elastic buckling analyses were performed on more than 350 finite element models. The numerically collected data were reduced using a series of regression analyses for simple equations to determine the required rigidity for the transverse stiffeners. Incremental nonlinear analyses were performed to validate the reliability of the regression equations developed in the inelastic buckling range.
机译：本文提出了压缩面板横向加劲肋所需最小刚度的更精确计算。由于纵向加劲肋实质上是受压构件，因此需要横向加劲肋来控制有效长度。纵向加劲肋和横向加劲肋将压板细分成网格状，因此相对较薄的板可以最有效的方式承受引起的压缩载荷。但是，AASHTO规范中关于横向加劲肋所需刚性的规定不一致。在这里，使用立柱屈曲近似理论确定用于控制横向加劲肋性能的参数。为了校准和量化开发的解析方程，对超过350个有限元模型进行了弹性屈曲分析。使用一系列用于简单方程式的回归分析来减少数值收集的数据，以确定横向加劲肋所需的刚度。进行了增量非线性分析，以验证在非弹性屈曲范围内建立的回归方程的可靠性。

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