期刊论文

中文

湖南工业职业技术学院学报

1671-5004

2018

18

4

23-26

10.13787/j.cnki.43-1374/z.2018.04.007

湖南省自然科学基金项目（项目编号:2017JJ3117）；

本校为第一机构

钢筋混凝土梁的配筋采用理论计算与工程经验相结合方式施工,缺少理论计算与试验验证相结合的设计方法。对此,依据设计规范对净跨度为2.4.m的梁进行设计和配筋计算,按照计算结果设置不同配筋率混凝土梁试件进行抗弯试验。试验结果表明不同配筋率混凝土梁在荷载作用下发生破坏时荷载大小不同,配筋率高其抵抗荷载破坏值大。试验得出最低极限配筋率-21.4%,和＋78.6%之间混凝土梁破坏时发生适筋破坏。低配筋率混凝土梁受弯破坏时裂缝少,高配筋率裂缝数增加,配筋率可影响梁破坏的延缓性。设计的混凝土梁试件中配筋率为0.5%时梁所能承受的抗弯性最好。

Reinforced concrete beam was used to construct by the theoretical calculation and engineering experience.However, a reasonable design to combine these two factors is not available now. In order to solve this problem, the study team designs the 2.4 m span concrete beam test, which uses the calculation results of reinforcement ration to do a bending resistance experiment. The experiment results show that different reinforcement ration of beams have different carrying capacity, and the high reinforcement ration can resist more loads. In addition, ...