[1]林上顺,陈宝春.考虑含筋率影响的弯矩增大系数计算方法[J].郑州大学学报(工学版),2016,37(05):33-38.[doi:10.3969/j.issn.1671-6833.2016.05.007]
　Lin Shangshun,Chen Baochun.Calculation Method of Moment Enlargement Coefficient Considering Effect of Reinforcement Ratio[J].Journal of Zhengzhou University (Engineering Science),2016,37(05):33-38.[doi:10.3969/j.issn.1671-6833.2016.05.007]
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考虑含筋率影响的弯矩增大系数计算方法()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
37
期数:
2016年05期
页码:
33-38
栏目:
出版日期:
2016-11-25

文章信息/Info

Title:
Calculation Method of Moment Enlargement Coefficient Considering Effect of Reinforcement Ratio
作者:
林上顺; 陈宝春
1.福建工程学院土木工程学院,福建省土木工程新技术与信息化重点实验室,福建福州350118;2.福州大学土木工程学院,福建福州,350116
Author(s):
Lin Shangshun1;Chen Baochun2
1. School of Civil Engineering, Fujian Institute of Technology, Fujian Provincial Key Laboratory of New Technology and Informatization of Civil Engineering, Fuzhou, Fujian 350118; 2. School of Civil Engineering, Fuzhou University, Fuzhou, Fujian 350116
关键词:
含筋率; 弯矩增大系数; 承载力; 钢筋混凝土偏压柱
Keywords:
reinforcement ratio; bending moment enlargement coefficient; load-carrying capacity; eccentrically loaded reinforced concrete column
DOI:
10.3969/j.issn.1671-6833.2016.05.007
文献标志码:
A
摘要:
已有文献指出,钢筋混凝土偏压柱的弯矩增大系数与含筋率有关,而我国结构设计规范中弯矩增大系数的计算不考虑含筋率的影响.为此,在收集的33根试件资料基础上,结合所开展的有限元分析,进行了理论分析,同时开展有限元参数分析.结果表明:弯矩增大系数计算式中的曲率影响系数不仅与长细比、偏心率有关,还与含筋率有关;在长细比、偏心率相同的情况下,含筋率越大,弯矩增大系数越大.根据分析结果,提出了考虑含筋率影响的曲率影响系数计算公式,应用收集到的文献试件验证了公式的计算精度.
Abstract:
It has been pointed out in the literature that the moment increase coefficient of reinforced concrete eccentric compression columns is related to the reinforcement ratio, but the calculation of the bending moment increase coefficient in China’s structural design code does not consider the influence of the reinforcement ratio. Therefore, in the collected 33 Based on the data of the root specimen, combined with the finite element analysis carried out, the theoretical analysis was carried out, and the finite element parameter analysis was carried out at the same time. The results show that the curvature influence coefficient in the calculation formula of the bending moment increase coefficient is not only related to the slenderness ratio and eccentricity It is also related to the ratio of ribs; in the case of the same slenderness ratio and eccentricity, the greater the ratio of ribs, the greater the coefficient of bending moment increase. According to the analysis results, a curvature influence coefficient considering the influence of ratio of ribs is proposed The calculation formula was used to verify the calculation accuracy of the formula by using the collected literature samples.
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