| 胶合木梁抗剪性能研究综述 |
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| 引用本文： | 曹磊,陈伯望.胶合木梁抗剪性能研究综述[J].工程力学,2018,35(6):1. |
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| 作者姓名： | 曹磊 陈伯望 |
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| 作者单位： | 1.中南林业科技大学土木工程学院, 湖南, 长沙 410004; |
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| 基金项目： | 国家自然科学基金项目（51578554）；现代木结构工程材制造及应用技术湖南省工程实验室资助项目（20151084） |
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| 摘 要： | 木材的剪切性能相对其它力学性能较低，在不确定的多种应力作用下，胶合木梁很可能产生剪切破坏。然而，因其抗剪性能研究较为复杂且较少，胶合木梁的抗剪设计常被忽视。该文整理和分析了胶合木梁抗剪性能研究现状，介绍和分析了影响胶合木梁抗剪性能的因素，包括剪跨比、构件尺寸、测试方法、裂纹及干湿条件等，分类总结和评价了胶合木梁抗剪设计的几种理论方法，为胶合木梁的抗剪设计提供参考。
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| 关 键 词： | 抗剪性能 胶合木 两梁理论 断裂力学 Weibull脆性断裂理论 |
| 收稿时间： | 2017-06-10 |
RESEARCH REVIEW ON SHEAR BEHAVIOR OF GLULAM |
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| Affiliation: | 1.College of Civil Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China;2.College of Civil Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, China |
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| Abstract: | The shear behavior of wood is lower than its other mechanical performance, so the glulam beam may exhibit shear failure under the influence of uncertain various stresses. However, because the study on the shear behavior of glulam beam is complex and limited, the shear design of glulam beam is often overlooked. The state of the art of shear behavior of glulam beams is summarized and analyzed. The influence factors on shear behavior of glulam beam are introduced and analyzed, including the shear span ratio, the size of the component, test method, crack, dry and wet condition etc. Several theoretical approaches of the shear design of glulam beams are classified, summarized and evaluated. The reference is provided for the shear design of glulam beams. |
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