A Simplified Model for Predicting the Behavior of Metal-clad, Wood-framed Diaphragms
A Simplified Model for Predicting the Behavior of Metal-clad, Wood-framed Diaphragms
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DOI：
10.13031/2013.27602
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发表时间：
1996
影响因子：
1.5
通讯作者：
J. D. Keener;H. B. Manbeck
中科院分区：
文献类型：
--
作者：
J. D. Keener;H. B. Manbeck
对金属包层木结构膜片板的简化有限元模型进行了研究。将简化有限元计算结果与试验结果和综合有限元计算结果进行了比较。隔膜板的平均设计抗剪刚度和强度分别为2.48 kN/mm和1.88 kN/m （14,170 lb/in）。和128.8 lb/ft)。基于Davies（1977）模型的简化有限元法预测膜片抗剪刚度在试验值的20%以内，而Wright（1992）开发的综合有限元法预测膜片抗剪刚度在试验值的28%以内。简化有限元法对膜片抗剪强度的预测在51%以内，而Wright的综合有限元法和Bryan和Davies （Davies and Bryan, 1982）的分析方法对膜片抗剪强度的预测在实验值的4%以内。因此，简化模型适用于线性区域的荷载-挠度行为预测，但不适用于非线性区域。
A simplified finite element model (FEM) of a metal-clad, wood-framed diaphragm panel was investigated. The simplified FEM results were compared with test results and comprehensive FEM results. The average measured design shear stiffness and strength for the diaphragm panels were 2.48 kN/mm and 1.88 kN/m (14,170 lb/in. and 128.8 lb/ft), respectively. The simplified FEM, based on Davies (1977) model, predicted the diaphragm shear stiffness to within 20% of experimental values while the comprehensive FEM, developed by Wright (1992), predicted the diaphragm shear stiffness to within 28% of experimental values. The simplified FEM predicted the diaphragm shear strength to within 51% while Wright’s comprehensive FEM and the analytical method of Bryan and Davies (Davies and Bryan, 1982) both predicted the diaphragm shear strength to within 4% of experimental values. Thus, the simplified model was suitable for predicting the load-deflection behavior in the linear region, but was not suitable in the nonlinear region.