摘要
通过对钢筋混凝土简支梁进行加载,测试梁纯弯曲段不同高度处的混凝土应变、梁底部钢筋应变以及梁的挠度值。研究分析了混凝土应变随荷载变化过程中,混凝土梁中性轴变化规律。根据实测应变结果,计算不同荷载等级下梁的弯曲曲率,推导出梁的挠度。分析结果表明:通过应变推导出的梁挠度随荷载变化规律与实验测试规律一致,计算结果精度较高。
The purpose of this work was to test the concrete strain at different heights , the steel bar strain at the bottom of the beam and the deflection value of the pure bending beam, by loading the reinforced concrete simply supported beam. The variation of the neutral axis of concrete beams during the process of strain change with load is studied. According to the measured strain results, calculate the bending curvature of the beam under different load levels, and give the deflection of the beam. The analysis results show that the deflection of the beam derived by strain is consistent with the experimental test law, and the accuracy of the calculation results is high.
作者
张伟
Zhang Wei(Xinyang Normal University,Xinyang 464000,China)
出处
《山东化工》
CAS
2018年第19期45-47,共3页
Shandong Chemical Industry
基金
信阳师范学院校青年基金项目(2013-QN-078)
河南省大学生创新训练项目(2017)
关键词
钢筋混凝土
梁
实验研究
受弯构件
荷载一变形曲线
reinforced concrete
beam
experimental study
flexural member
load - deformation curve
作者简介
张伟（1988-）,男,河南信阳人,硕士,助教,主要从事结构工程等方面研究.
