计算力学学报2012，Vol.29Issue(6)：934-939,6.
钢筋混凝土梁受弯破坏过程的细观数值模拟研究
Mesoscale simulation of the flexural failure process of reinforced concrete beams
摘要
Abstract
On mesoscale, concrete is usually regarded as a three-phase composite material, consisting of coarse aggregates, mortar and the bond zone. This treatment can represent well the crack propagation and distribution under loading. By means of the mesoscopic RBSM (Rigid-Body-Spring Model), this paper numerically simulates the mechanical behavior and failure process of reinforced concrete (RC) beams with symmetrically loading at two positions on the beam. The crack pattern and load-deflection curve under different reinforcement ratios are simulated. In addition, the stress distribution of the longi- tudinal reinforcement is analyzed during the loading process. Compared with the experimental results, it is shown that the RBSM on mesoscale can be applied to simulate the cracking propagation,failure mode and load-deflection behavior of RC beams.关键词
细观/刚体弹簧元/数值模拟/钢筋混凝土梁Key words
mesoscale/Rigid-Body-Spring Model/numerical simulation/reinforced concrete (RC) beams分类
建筑与水利引用本文复制引用
王立成,邢立坤,宋玉普..钢筋混凝土梁受弯破坏过程的细观数值模拟研究[J].计算力学学报,2012,29(6):934-939,6.基金项目
教育部科学技术研究重点 （）
中央高校基本科研业务费专项 （）
国家自然科学基金重点（50838001）资助项目. （）
