| 基于静态弯曲性能的木质工字梁设计计算方法探讨 |
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| 引用本文： | 张宏健,董春雷,Ying Hei Chui,袁福兴.基于静态弯曲性能的木质工字梁设计计算方法探讨[J].木材工业,2009,23(4). |
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| 作者姓名： | 张宏健 董春雷 Ying Hei Chui 袁福兴 |
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| 作者单位： | 1. 西南林学院木质科学与装饰工程学院,云南昆明,650224
2. 回拿大 New Brunswick 大学木材科技中心,加拿大,E3C 2G6 |
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| 基金项目： | 云南省国际合作暨科技兴贸计划，国家自然科学基金 |
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| 摘 要： | 参照钢质工字梁静态弯曲理论，对木质工字梁（IJ）的“荷载一位移”曲线、IJ正应力理论计算值与实测值、IJ整梁挠度理论计算值与实测值的对比分析，结果认定：1）钢质工字粱的静态弯曲理论计算公式，可用于IJ弹性段应力和挠度的分析计算；2）IJ整梁静态弯曲性能的分析计算时，应注意IJ上翼缘压缩特性和下翼缘拉伸特性的差异。
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| 关 键 词： | 木质工字梁 静态弯曲性能 翼缘 |
An Approach to Analyzing Static Bending Performance of Wood I-Joist |
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| ZHANG Hong-jian,DONG Chun-lei,Ying Hei Chui,YUAN Fu-xing.An Approach to Analyzing Static Bending Performance of Wood I-Joist[J].China Wood Industry,2009,23(4). |
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| Authors: | ZHANG Hong-jian DONG Chun-lei Ying Hei Chui YUAN Fu-xing |
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| Institution: | 1.Faculty of Wood Science and Decoration Engineering;Southwest Forestry College;Kunming 650224;Yunnan;China;2.Wood Science and Technology Centre of University of New Brunswick;E3C 2G6;Canada |
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| Abstract: | Based on the classic static bending theory of a homogenous steel I-beam,the authors of this study investigated the load-displacement performance of non-homogeneous wood I-joists(IJ)made from different wood composites.The theoretical results and actual load-displacement data of wood I-joists were compared.The results indicated that:1)the classic static bending theory based on a steel I-beam could still be applied to wood I-Joists within the elastic stage;2)the tensile strain of the bottom flange and the comp... |
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| Keywords: | wood I-joist static bending performance flange |
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