| 盲孔法测试Q690高强钢管镀锌前后残余应力 |
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| 引用本文： | 杨俊芬, 李渊, 彭奕亮. 盲孔法测试Q690高强钢管镀锌前后残余应力[J]. 工程力学, 2015, 32(2): 114-119. DOI: 10.6052/j.issn.1000-4750.2013.08.0758 |
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| 作者姓名： | 杨俊芬 李渊 彭奕亮 |
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| 作者单位： | 1.西安建筑科技大学土木工程学院,陕西,西安 710055;;2.中国建筑西北设计研究院有限公司,陕西,西安 710018;;3.河南省电力勘测设计院,河南,郑州 450007 |
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| 摘 要： | 残余应力对轴心受压构件的稳定性等有重要影响,为考察Q690焊接高强钢管镀锌前后的截面纵向残余应力分布,该文采用盲孔法对截面规格分别为
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| 关 键 词： | 盲孔法 Q690高强钢管 镀锌 纵向残余应力 分布模式 |
| 收稿时间： | 2013-08-19 |
EXPERIMENTAL STUDY ON THE RESIDUAL STRESS OF Q690 HIGH-STRENGTH STEEL PIPE BEFORE AND AFTER GALVANIZATION USING BLIND-HOLE METHOD |
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| YANG Jun-fen, LI Yuan, PENG Yi-liang. EXPERIMENTAL STUDY ON THE RESIDUAL STRESS OF Q690 HIGH-STRENGTH STEEL PIPE BEFORE AND AFTER GALVANIZATION USING BLIND-HOLE METHOD[J]. Engineering Mechanics, 2015, 32(2): 114-119. DOI: 10.6052/j.issn.1000-4750.2013.08.0758 |
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| Authors: | YANG Jun-fen LI Yuan PENG Yi-liang |
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| Affiliation: | 1.School of Civil Engineering, Xi'an University of Architecture and Technology, Shaanxi, Xi'an 710055, China;;2.China Northwest Building Design Research Institutes Company Limited, Shaanxi, Xi'an 710018, China;;3.Henan Electric Power Survey and Design Institute, Zhengzhou, Henan 450007, China |
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| Abstract: | Residual stress has an important impact on the stability and other performances of axial compression members. In order to study the influence of galvanization on residual stress distribution of Q690 high-strength steel pipe, a total of 24 specimens, with three cross-sectional specifications as ![]() , ![]() and ![]() , are tested using blind-hole method. The longitudinal residual stress magnitude and distribution pattern of each cross-sectional specification are obtained. The residual stress distribution of the same cross-section steel pipe before and after galvanization was compared. The results show that the residual stress of the steel pipe after galvanization is significantly reduced. The ratio of the peak residual stress to the yield strength of Q690 high-strength steel pipe is 0.15, which is significantly less than that of ordinary strength steel pipe with a value of 0.35. |
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| Keywords: | blind-hole method Q690 high-strength steel pipe galvanization longitudinal residual stress distribution pattern |
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