论文部分内容阅读
随着对LNG低温储罐关注度的提高及在严寒地区进行大量的土木工程建设,混凝土结构已广泛应用于低温、超低温环境。如LNG低温储罐的发展使混凝土结构可能被应用于?165℃的超低温环境,因此有必要对超低温环境下的相关材料性能进行系统的研究。该文在参考大量国内外文献的基础上对超低温下钢筋、混凝土材料的力学性能以及钢筋与混凝土的粘结性能做了综述,重点讲述超低温环境下钢筋、预应力钢筋的力学性能以及超低温对钢筋与混凝土粘结性能的影响。
With the increasing attention on cryogenic LNG storage tanks and the massive civil engineering construction in cold regions, concrete structures have been widely used in low temperature and ultra-low temperature environments. For example, the development of LNG cryogenic storage tanks makes the concrete structure be applied to the ultra-low temperature environment of 165 ℃, so it is necessary to conduct a systematic study of the relevant material properties in the ultra-low temperature environment. Based on a large number of references both at home and abroad, this paper reviewed the mechanical properties of steel bar and concrete at ultra-low temperature, and the bonding properties of steel bar and concrete. The emphasis was put on the mechanical properties of steel bars and prestressed bars under ultra-low temperature, And concrete bonding performance.