同心的
期限(时间)
结构工程
材料科学
钢筋混凝土
复合材料
工程类
几何学
数学
物理
量子力学
作者
Ngoc Long Tran,Manh Hung Nguyen,Van Quyet Truong
出处
期刊:DOAJ: Directory of Open Access Journals - DOAJ
日期:2019-08-01
摘要
This paper presents the results of an experimental study to measure the shortening of reinforced concrete (RC) columns under long-term maintaining concentric axial load. Long-term axial deformation due to shrinkage and creep of the concrete were recorded beside deformation due to mechanical load. Eight RC cylinder - columns (content of reinforcement 1.5% and 2%) with diameter of 150 mm and height of 600 mm were tested during the period of 600 days to determine their shortening. The experimental results showed that the long-term deformation of RC columns occurs primarily during the first year of loading. The deformation creep of concrete is much greater than the shrinkage deformation. The reinforcement content has a significant effect on the long-term deformation of concrete columns.
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