| 浅析平板网架焊接空心球节点疲劳寿命估算方法 |
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| 引用本文： | 庞俊禄.浅析平板网架焊接空心球节点疲劳寿命估算方法[J].科学之友,2009(5):5-6,9. |
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| 作者姓名： | 庞俊禄 |
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| 作者单位： | 太原理工大学建筑与土木工程学院; |
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| 摘 要： | 文章简要阐述了疲劳寿命估算的一般方法及其估算步骤，同时也指出了各种估算方法的优缺点，介绍了在平板网架结构中焊接空心球节点在常幅栽荷作用下裂纹起始阶段寿命的计算方法和计算公式，指出了焊接空心球节点在常幅载荷作用下裂纹扩展阶段的计算方法和计算公式。
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| 关 键 词： | 钢结构 疲劳寿命 焊接 裂纹 断裂力学 |
Analysis of Flat-panel Grid Welded Hollow Spherical Joints Fatigue Life Estimation Method |
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| Pang Junlu.Analysis of Flat-panel Grid Welded Hollow Spherical Joints Fatigue Life Estimation Method[J].Friend of Science Amateurs,2009(5):5-6,9. |
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| Authors: | Pang Junlu |
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| Abstract: | This paper briefly described the general fatigue life prediction methods and their estimation of the steps, but also pointed out the advantages and disadvantages of the various estimation methods. This article describes the structure of flat-panel grid welded hollow ball node at regular increase load start-up phase propagation life calculation method and calculation formula, introduced welded hollow ball node increase at regular load crack growth stage of the calculation methods and calculation formula. |
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| Keywords: | Steel structure Fatigue life Welding Crack Fracture mechanics |
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