Research progress on the influence of temperature on the #br#
mechanical performance of concrete structures
Jin Liu1 Zhang Renbo1,2 Du Xiuli1 Liu Jingbo2
1. The Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing University of Technology, Beijing 100124, China;
2. Tsinghua University, Beijing 100084, China
Abstract：The application scope of concrete material is continuously expanding because of the excellent performance and wide selection of raw materials. The environmental temperature of the concrete structures ranges from a high temperature of about 1000 ℃ to a low temperature of -165 ℃ in the cases of fire disaster, high latitude and extreme cold environment, as well as the LNG storage tank, etc. Therefore, it is essential to fully understand the influence of temperature on concrete materials and structural properties to guarantee the safety of engineering structure in different environments. A lot of research work has been carried out on the performance of concrete structures at different temperatures while the relatively systematic theoretical system and design method have been formed. In this paper, the research work of the effect of high temperature on the mechanical properties of ordinary concrete, steel fiber reinforced concrete and steel rebar as well as reinforced concrete (RC) components was concluded and the research progress of concrete, steel rebar and RC components at cryogenic temperature was introduced. Then, the research trend was pointed from five respects, namely, the high-temperature properties of high-performance concrete, fire-resistant design methods of concrete structures, damage assessment and retrofitting of fired concrete structures, low-temperature properties of concrete materials and damage mechanism, as well as the behavior of RC structures subjected to cryogenic temperature.
金浏 张仁波 杜修力 刘晶波. 温度对混凝土结构力学性能影响的研究进展 [J]. 土木工程学报, 2021, 54(3): 1-18.
Jin Liu Zhang Renbo Du Xiuli Liu Jingbo. Research progress on the influence of temperature on the #br#
mechanical performance of concrete structures. 土木工程学报, 2021, 54(3): 1-18.
