American Society of Civil Engineers


Analysis and Design of the Database of Steel Pipeline Mechanical Properties


by Qingquan Duan, (School of Mechanical and Electronic Engineering, China University of Petroleum (Beijing), Beijing, China, 102249 E-mail: duanqingquan@yahoo.com.cn), Hong Zhang, (School of Mechanical and Electronic Engineering, China University of Petroleum (Beijing), Beijing, China, 102249 E-mail: hzhang@cup.edu.cn), Xuehui Cui, (Department of Mathematics & Physics, China University of Petroleum (Beijing), Beijing, China, 102249 E-mail: freecxh@126.com), Yafeng Ji, (School of Mechanical and Electronic Engineering, China University of Petroleum (Beijing), Beijing, China, 102249 E-mail: jiyafeng@gmail.com), and Dan Zhang, (School of Mechanical and Electronic Engineering, China University of Petroleum (Beijing), Beijing, China, 102249 E-mail: zhangdan_1984@163.com)
Section: Research and Development, pp. 1836-1843, (doi:  http://dx.doi.org/10.1061/41073(361)193)

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Document type: Conference Proceeding Paper
Part of: ICPTT 2009: Advances and Experiences with Pipelines and Trenchless Technology for Water, Sewer, Gas, and Oil Applications
Abstract: The purpose of this paper is to discuss the mechanical properties of piping materials and the piping database design. The mechanical properties of piping materials produced by companies are very useful information during the design and safety management of oil and gas pipeline. The primary mechanical properties which meet the international or domestic standards are slightly different. Sometimes the difference of yield strength can reach up to dozens of mega Pascal. The 376 groups of X70 grade pipeline steel produced by An Gang Steel Company (ANSTEEL) and 139 groups produced by Pohang Iron and Steel Co. Ltd (POSCO) were adopted in order to acquire the statistics of mechanical properties. The results indicate the average yield strength of ANSTEEL X70 steel is 1.12 times Specified Minimum Yield Strength (SMYS) and POSCO 1.18 times SMYS respectively. According to the data characters, the management database of the mechanical properties was designed based on Computer/Server structure. The remote database query system was applied based on Brower/Server structure.


ASCE Subject Headings:
Databases
Steel pipes
Mechanical properties