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首页> 外文期刊>International journal of steel structures >Prediction Models for the Initial Rotational Stiffness and Ultimate Plastic Moment for a Double Split Tee Connection
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Prediction Models for the Initial Rotational Stiffness and Ultimate Plastic Moment for a Double Split Tee Connection

机译：双开口三通的初始旋转刚度和极限塑性力矩的预测模型

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摘要

As a partially restrained connection, a double split tee connection has demonstrated various behavioral characteristics based on the combination of T-stub thickness, high-strength bolt gauge distance, and beam and column stiffness ratio, among other characteristics. Accordingly, many researchers have proposed an analysis model that would determine the behavioral characteristics, stiffness, and strength of a double split tee connection by selecting T-stub thickness and high-strength bolt gauge distance as parameters. However, such a model has not yet been proven to be accurate due to complicated stress distribution, contact and bearing phenomena, as well as prying action on high-strength bolts. Therefore, this study proposed an improved prediction model for the initial rotational stiffness and ultimate plastic moment to implement double split tee connections in the domestic steel structures market. Toward this end, this study performed the three-dimensional nonlinear finite element analysis, and validated the proposed model by comparing and reviewing its test results from the works of other researchers.
机译：作为部分约束的连接，双T型三通已显示出各种性能特征，这些特征基于T型桩厚度，高强度螺栓距，梁和柱刚度比的组合以及其他特征。因此，许多研究人员提出了一种分析模型，该模型将通过选择T型短管厚度和高强度螺栓距作为参数来确定双三通的行为特征，刚度和强度。但是，由于复杂的应力分布，接触和轴承现象以及对高强度螺栓的撬动作用，这种模型尚未被证明是准确的。因此，本研究提出了一种改进的初始旋转刚度和极限塑性弯矩的预测模型，以在国内钢结构市场中实现双三通。为此，本研究进行了三维非线性有限元分析，并通过比较和审查了其他研究人员的测试结果来验证了所提出的模型。

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