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考虑黏结滑移的钢筋混凝土梁分析方法研究
Study on Analytical Method of Reinforced Concrete Beams Considering bonding Slip
2019年第12期
钢筋混凝土;黏结-滑移;单调荷载;反复荷载;有限元
Reinforced concrete; Bonding-slip; Monotonic load; Cyclic load; Finite element
2019年第12期
10.19761/j.1000-4637.2019.12.066.04
国家自然科学基金资助项目(51668060)。
于 江,皮滟杰,乐风江,许 磊,蔺鹏杰
新疆大学建筑工程学院,乌鲁木齐 830047

于 江,皮滟杰,乐风江,许 磊,蔺鹏杰

于江,皮滟杰,乐风江,等.考虑黏结滑移的钢筋混凝土梁分析方法研究[J].混凝土与水泥制品,2019(12):66-69.

YU J,PI Y J,YUE F J,et al.Study on Analytical Method of Reinforced Concrete Beams Considering bonding Slip[J].China Concrete and Cement Products,2019(12):66-69.

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摘 要:基于ABAQUS有限元分析软件,提出了一种以非线性弹簧与PQ-Fiber子程序结合使用来考虑钢筋与混凝土之间黏结滑移关系的简易方法,分别用此方法分析了普通钢筋混凝土梁在单调荷载下的破坏过程,以及预应力混凝土梁在反复荷载下的受力行为。结果表明,在单调荷载和反复荷载下,数值分析结果的初始刚度和承载力均高于试验结果;单调荷载下的分析结果出现了明显的承载力下降阶段,反复荷载下的分析中有效地避免了滞回曲线的过度饱满现象;整体上分析结果与试验结果吻合良好,故该方法用于钢筋混凝土梁的有限元分析中是可行的。 Abstract: A simple and easy method to consider the relationship between bond and slip between steel and concrete based on ABAQUS finite element analysis software, in combination with a kind of non-linear spring and PQ-Fiber subroutine was put forward, and the failure process of ordinary reinforced concrete beams under monotonic loading and the behavior of prestressed concrete beams under cyclic loading were analyzed by this method. The results show that under the monotonic and cyclic loads, the initial stiffness and bearing capacity of the numerical analysis results are higher than those of the experimental results. The numerical analysis results have a significant bearing capacity decline stage, and the method effectively avoids the overfilling phenomenon of the hysteresis curve under cyclic load analysis. The results are in good agreement with the experimental results, and the method is feasible for the finite element analysis of reinforced concrete beams.
英文名 : Study on Analytical Method of Reinforced Concrete Beams Considering bonding Slip
刊期 : 2019年第12期
关键词 : 钢筋混凝土;黏结-滑移;单调荷载;反复荷载;有限元
Key words : Reinforced concrete; Bonding-slip; Monotonic load; Cyclic load; Finite element
刊期 : 2019年第12期
DOI : 10.19761/j.1000-4637.2019.12.066.04
文章编号 :
基金项目 : 国家自然科学基金资助项目(51668060)。
作者 : 于 江,皮滟杰,乐风江,许 磊,蔺鹏杰
单位 : 新疆大学建筑工程学院,乌鲁木齐 830047

于 江,皮滟杰,乐风江,许 磊,蔺鹏杰

于江,皮滟杰,乐风江,等.考虑黏结滑移的钢筋混凝土梁分析方法研究[J].混凝土与水泥制品,2019(12):66-69.

YU J,PI Y J,YUE F J,et al.Study on Analytical Method of Reinforced Concrete Beams Considering bonding Slip[J].China Concrete and Cement Products,2019(12):66-69.

摘要
参数

摘   要:基于ABAQUS有限元分析软件,提出了一种以非线性弹簧与PQ-Fiber子程序结合使用来考虑钢筋与混凝土之间黏结滑移关系的简易方法,分别用此方法分析了普通钢筋混凝土梁在单调荷载下的破坏过程,以及预应力混凝土梁在反复荷载下的受力行为。结果表明,在单调荷载和反复荷载下,数值分析结果的初始刚度和承载力均高于试验结果;单调荷载下的分析结果出现了明显的承载力下降阶段,反复荷载下的分析中有效地避免了滞回曲线的过度饱满现象;整体上分析结果与试验结果吻合良好,故该方法用于钢筋混凝土梁的有限元分析中是可行的。
Abstract: A simple and easy method to consider the relationship between bond and slip between steel and concrete based on ABAQUS finite element analysis software, in combination with a kind of non-linear spring and PQ-Fiber subroutine was put forward, and the failure process of ordinary reinforced concrete beams under monotonic loading and the behavior of prestressed concrete beams under cyclic loading were analyzed by this method. The results show that under the monotonic and cyclic loads, the initial stiffness and bearing capacity of the numerical analysis results are higher than those of the experimental results. The numerical analysis results have a significant bearing capacity decline stage, and the method effectively avoids the overfilling phenomenon of the hysteresis curve under cyclic load analysis. The results are in good agreement with the experimental results, and the method is feasible for the finite element analysis of reinforced concrete beams.

关键词:
钢筋混凝土;黏结-滑移;单调荷载;反复荷载;有限元
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