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在施工和运营过程中,钢结构构件上出现的裂纹缺陷可能会扩展而导致其发生断裂破坏,因此对含裂纹缺陷钢结构构件的安全性进行评估具有重要意义。首先,引入断裂力学KIC断裂判据和失效评定图(FAD)概念,并介绍了结构整体性评估程序(SINTAP)的原理;给出了裂纹缺陷评定所需材料参数的确定方法,以及含裂纹缺陷构件的断裂力学参数和塑性屈服荷载的计算方法;然后,提出了基于SINTAP-FAD的含裂纹缺陷钢结构构...
Fracture Assessment of Welded Steel Structures Using the SINTAP
SINTAP Net-section-collapse method Welded column-beam connection Brittle fracture
2009/10/12
The assessment of weld defects is entirely related to the reliability of the beam-to-column connections in welded steel structures. This paper aims to determine accurate and quick defect assessment of...