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Analysis of Metal Plate Connected Wood Truss Assemblies under Out-of-Plane Loads

机译:平面载荷作用下金属板连接的木桁架组合件分析

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Metal plate connected wood trusses (MPCWT) are not designed to carry out-of-plane loads and performance of MPCWT assemblies under these loads are not considered. The goal of this research is to compare structural analysis models of MPCWT assemblies under out-of-plane loads to previous experimental data. The rotational stiffness of truss-wall connections, and truss bracing elements were evaluated for inclusion in the structural analysis model. A parametric study considering load location, joint stiffness and dimensions of MPCWT assembly was conducted. The structural analysis model of the MPCWT assemblies had first truss deflections within 4% difference of experimental results. Variation of the load location along the length of the MPCWT assembly produced a 9% difference in maximum deflection. The rotational stiffness of lateral and diagonal bracing should be included as model inputs for the accurate representation of experimental behavior since neither pin nor rigid assumptions were not correct.
机译:金属板连接的木桁架(MPCWT)并非设计为承受平面载荷,并且未考虑MPCWT组件在这些载荷下的性能。这项研究的目的是将MPCWT组件在平面外载荷下的结构分析模型与以前的实验数据进行比较。评估了桁架-墙连接和桁架支撑元件的旋转刚度,以将其包括在结构分析模型中。进行了考虑载荷位置,接头刚度和MPCWT组件尺寸的参数研究。 MPCWT组件的结构分析模型的第一桁架挠度在实验结果差异的4%之内。沿着MPCWT组件长度方向的载荷位置变化在最大挠度上产生了9%的差异。由于销钉和刚性假设都不正确,因此应将横向和对角撑杆的旋转刚度作为模型输入,以精确表示实验行为。

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