【作者】 狄静； 信任； 吴梦溪； 董振平； 任瑞；

【Author】 DI Jing;XIN Ren;WU Meng-xi;DONG Zhen-ping;REN Rui;Shanxi Provincial Natural Gas Company Limited;School of Civil Engineering,Xi’an University of Architecture & Technology;Central Research Institute of Building and Construction,MCC;

【机构】 陕西省天然气股份有限公司； 西安建筑科技大学土木工程学院； 中冶建筑研究总院有限公司；

【摘要】 本文在试验研究的基础上,分析了芳纶纤维布(AFRP)加固钢筋混凝土小偏心受压柱的力学特性。运用纤维布约束小偏心受压柱的非线性有限元模型,重点研究了加固量、加固条带宽度与间距、纤维布抗拉强度及纤维布弹性模量等参数对小偏心柱受力性能的影响,并将试验结果和有限元计算结果进行了对比分析。结果表明:本文建立的有限元计算模型能够较好地模拟纤维布加固钢筋混凝土小偏心受压柱的受力性能,不同参数指标及量值的设定对小偏心受压柱的承载力及其加固效果的影响存在较大差异,据此可为实际工程加固小偏心受压柱提供技术支持。更多还原

【Abstract】 On the basis of experimental study, the mechanical properties of reinforced concrete column wrapped with AFRP are analyzed under little eccentric pressure. The nonlinear finite element models of reinforced concrete column wrapped with AFRP are established, which is focused on the different reinforcement parameters on the mechanical properties of small eccentric compression column, including the amount of reinforcement, reinforcement form of fiber cloth, the tensile strength and elastic modulus of fiber cloth. Comparing the experimental study and finite element calculation results, it shows that the establishment of the finite element model is reliable in the paper and could be a better simulation for the performance of reinforced concrete columns wrapped with AFRP under little eccentric force. The different reinforcement effect exists for the influence of different parameters on the small eccentric compression column,which could provide technical support for engineering practice.更多还原