东南大学学报（英文版）Issue(3)：330-335,6.DOI:10.3969/j.issn.1003-7985.2014.03.014
钢筋增强 ECC 梁受弯性能的试验及数值研究
Experimental and numerical study on flexural behaviors of steel reinforced engineered cementitious composite beams
摘要
Abstract
To investigate the flexural behaviors of steel reinforced engineered cementitious composite ECC beams the behaviors of the steel reinforced ECC beam and the conventional steel reinforced concrete beam subjected to flexural load are experimentally compared.The experimental results show that the flexural strength and ductility of the steel reinforced ECC beam are 24.8% and 187.67% times larger than those of the steel reinforced concrete beam and the substitution of concrete with ECC can significantly delay the propagation of cracks.Additionally a simplified constitutive model of the ECC material is used to simulate the flexural behaviors of beams by the finite element analysis FEA .The results show a good agreement between the simulation and test results.The crack width of the steel reinforced ECC beam can be limited to 0.4 mm under the service load conditions.The application of ductile ECC can significantly increase the flexural performance in terms of flexural strength deformation capacity and ductility of the beams.关键词
高延性纤维增强水泥基复合材料/延性/受弯性能/有限元Key words
engineered cementitious composites/ECC ductility/flexural behavior/finite element分类
建筑与水利引用本文复制引用
蔡景明,潘金龙,袁方..钢筋增强 ECC 梁受弯性能的试验及数值研究[J].东南大学学报（英文版）,2014,(3):330-335,6.基金项目
The National Natural Science Foundation of China No．51278118 the National Basic Research Program of China 973 Program No．2009CB623200 the Natural Science Foundation of Jiangsu Province No．BK2012756． （）
