摘要
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 attention on LNG storage tanks increasing and a large number of civil engineering constructions being carried out in cold areas,concrete structures will be widely used in low temperature and ultra-low temperature environments.For LNG cryogenic storage tanks,the concrete structure may be applied to an extreme environment with a temperature of ?165℃.Thusly it is necessary to perform systematic researches on the material properties at cryogenic temperatures.The mechanical properties of structural materials under ultra-low temperatures are summarized based on review of a large number of domestic and foreign references.Especially,the mechanical performance of reinforced bars prestressed reinforcements in ultra-low temperature environment,and the bonding behaviors between reinforcements and concrete at cryogenic temperatures are focused on.
出处
《工程力学》
EI
CSCD
北大核心
2011年第A01期80-84,共5页
Engineering Mechanics
基金
国家自然科学基金项目(51078260)
关键词
超低温
混凝土
钢筋
预应力钢筋
粘结性能
力学性能
cryogenic temperature
concrete
reinforced bar
prestressed reinforcement
bonding properties
mechanical properties
作者简介
李会杰(1983-),男,河北人,助工,硕士生,主要从事低温混凝土性能试验研究(E-mail:huijielee@yahoo.com.cn):
谢剑(1974-),男,河北人,副教授,博士,硕导,主要从事混凝土基本理论研究(E-mail:xiejian@tju.edu.cn).