| 预应力混凝土用钢绞线应力松弛试验不确定度的评定 |
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| 引用本文： | 马明惠,杨陈玲,许志伟.预应力混凝土用钢绞线应力松弛试验不确定度的评定[J].工程质量,2014(10):80-83. |
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| 作者姓名： | 马明惠 杨陈玲 许志伟 |
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| 作者单位： | 1. 南通市建筑科学研究院有限公司，江苏南通226002; 南通建工集团股份有限公司，江苏南通226006
2. 南通市建设工程质量检测站有限公司,江苏南通,226007 |
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| 摘 要： | 根据《测量不确定度评定与表示》（JJF 1059.1-2012）、《金属材料拉伸应力松弛试验方法》（GB/T 10120-2013）等相关技术规范,对1×7-15.20-1860预应力混凝土用钢绞线拉伸应力松弛试验过程中的不确定度来源进行分析,并对其进行了不确定度分项、合成不确定度、扩展不确定度的评定。
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| 关 键 词： | 应力松弛 测量不确定度 合成不确定度 扩展不确定度 |
The Evaluation for Uncertainty of Stress Relaxation Test on Steel Strand for Prestressed Concrete |
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| MA Minghui,YANG Chenling,XU Zhiwei.The Evaluation for Uncertainty of Stress Relaxation Test on Steel Strand for Prestressed Concrete[J].Quality of Civil Engineering and Construction,2014(10):80-83. |
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| Authors: | MA Minghui YANG Chenling XU Zhiwei |
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| Affiliation: | MA Minghui, YANG Chenling, XU Zhiwei ( 1. Nantong Academy of Building Research Co., Ltd., Nantong Jiangsu 226002, China,＂ 2. Nantong Construction Group Joint-Stock Co., Ltd., Nantong Jiangsu 226006, China; 3.Nantong Construction Quality inspection Station Co., Ltd., Nantong Jiangsu 226007, China) |
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| Abstract: | The uncertainty of the measurement process of relaxation test on 1×7-15.20-1860 steel strand for prestressed concrete has been analyzed according to ＂Evaluation and Expression of Uncertainty in Measurement＂（JJF 1059.1-2012）,＂Metallic materials-Tensile Stress Relaxation-Method of Test＂（GB/T 10120-2013）and other related technical specification,and its uncertainty component,synthesis uncertainty and expanding uncertainty were evaluated. |
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| Keywords: | stress relaxation uncertainty of measurement synthesis uncertainty expanding uncertainty |
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