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| Mesoscale simulation of the flexural failure process of reinforced concrete beams |
| Received:September 24, 2011 Revised:March 09, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20126020 |
| KeyWord:mesoscale Rigid-Body-Spring Model numerical simulation reinforced concrete (RC) beams |
| Author | Institution |
| 王立成 |
大连理工大学 海岸和近海工程国家重点实验室,大连 |
| 邢立坤 |
中国航天建筑设计研究院集团 济南分院,济南 |
| 宋玉普 |
大连理工大学 海岸和近海工程国家重点实验室,大连 |
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| 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 longitudinal 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. |
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