Deformation of stainless steel cables at elevated temperature

被引：12
|
作者：
Sun, Guojun [1 ,2 ]
Li, Xiaohui [1 ]
Wu, Jinzhi [1 ,2 ]
Chen, Ronghua [3 ]
Chen, Guangning [3 ]
机构：
[1] Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China
[2] Beijing Univ Technol, MOE, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
[3] Guangdong Kinex Hardware Prod Co Ltd, Dongguan 523000, Guangdong, Peoples R China
来源：
ENGINEERING STRUCTURES | 2020年 / 211卷 / 211期
关键词：
Stainless steel cable; Elevated temperature; Thermal expansion; Creep; MECHANICAL-PROPERTIES; CREEP; BEHAVIOR; COLUMNS; DESIGN;
D O I：
10.1016/j.engstruct.2020.110498
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The deformation of stainless steel cables at elevated temperatures is an important consideration for the design of fire resistant pre-stressed spatial structures. In this paper, by conducting extensive experiments on a number of specimens, the thermal expansion under a stress-free state, the deformation under thermo-mechanical coupling state in transient heating stage, and the creep deformation in constant temperature stage of stainless cables subjected to elevated temperature were studied experimentally. A correlation for the thermal expansion coefficient of the stainless steel cables in the range of 30-600 degrees C was obtained. In addition, an equation relating the deformation of the cables and the temperature and initial stress under the thermo-mechanical coupling state in the heating stage was proposed. Furthermore, the relationship between the parameters of the Field & Field creep model and the temperature was derived for the stainless steel cables.
引用
收藏
页数：17
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