Mechanical Properties of High Tensile Parallel Wire Cables at Elevated Temperatures

被引：0
|
作者：
Du Y. [1 ,2 ]
Xiao L. [1 ]
Li G. [2 ]
Wang X. [1 ]
机构：
[1] College of Civil Engineering, Nanjing Tech University, Nanjing
[2] State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2020年 / 23卷 / 01期
关键词：
Fire safety; Mechanical property at elevated temperature; Parallel wire cable; Stress-strain relationship;
D O I：
10.3969/j.issn.1007-9629.2020.01.017
中图分类号：
学科分类号：
摘要：
A charge-coupled device camera(CCDC) system was used to capture the full range of stress-strain relationship of high tensile strength parallel wire cables by 7 wires with 7 mm diameter with tensile strength of 1670MPa at different elevated temperature. Based on the high temperature test database, a series of reduction factors on proportional limit, elastic modules, nominal yield strength, rupture strength and functions of stress-strain relationship at elevated temperature was obtained. The test results indicate that the stress strengthening stage and necking stage are clarified by the full range of stress-strain relationship of high tensile strength parallel wire cables at elevated temperature, and the nominal yield strength under 2.00% strain applys to the high tensile strength parallel wire cables. © 2020, Editorial Department of Journal of Building Materials. All right reserved.
引用
收藏
页码：114 / 121
页数：7
相关论文
共 18 条
  • [1] Saitoh M., Okada A., The role of string in hybrid string structure, Engineering Structures, 21, pp. 756-769, (1999)
  • [2] Chen Z., Application and development of cable structures in construction field
  • [3] Eurocode 2-Design of concrete structures - Part 1-1: General rules and rules for buildings: BS EN 1992-1-1: 2004, (2004)
  • [4] Specification for high tensile steel wire and strand for the pre-stressing of concrete: BS 5896: 2012, (2012)
  • [5] Standard specification for steel strand, uncoated seven-wire for pre-stressed concrete: ASTM A416/A416M-02, (1999)
  • [6] Code requirements for determining fire resistance of concrete and masonry construction assemblies: ACI 216.1-14, (2014)
  • [7] Design for Fire Resistance of Precast/Pre-stressed Concrete: PCI/CONCRT MNL-124-Ⅱ, (2013)
  • [8] Eurocode 2-Design of concrete structures-Part 1-2: General rules - Structural fire design: BS EN 1992-1-2: 2004, (2004)
  • [9] Wang Y., Shen Z., Li Y., Experimental study of the mechanical properties of prestressed steel wire at elevated temperatures, 10th International Conference on Structures in Fire, pp. 711-718, (2010)
  • [10] Xiong M., Richard L.J.Y., Mechanical properties of heat-treated high tensile structural steel at elevated temperature, Thin-Walled Structures, 98, pp. 169-176, (2016)
12