摘要
收集了现有的不同文献中钢筋混凝土梁开裂荷载的计算方法,并和已有的试验结果进行对比分析。结果表明:不同计算方法主要区别在于是否考虑截面抵抗矩塑性影响系数,是否考虑钢筋对计算截面惯性矩的影响。同时通过对比分析开裂荷载试验值与理论值得出,过镇海计算方法得到的开裂荷载理论值与试验值更接近,偏差更小。
The calculation methods of crack load for reinforced concrete beam in the existing literatures were collected, and were compared with existing experimental results. Results show that the main difference of formulas lies in whether to consider plastic influence coefficient of sectional resistance moment and the effect of reinforcement on the calculation sectional inertia moment. Comparative analyses on test result and theoretical value of crack load show that theoretical value of crack load according to Guo Zhenhai calculation method is close to the experimental value with smaller deviation.
出处
《建筑结构》
CSCD
北大核心
2015年第6期14-17,共4页
Building Structure
基金
国家自然科学基金(50908071
51378167
51278519)
安徽省自然科学基金资助项目(1408085MKL45)
安徽省重点实验室计划项目(1106c0805024)
博士科研启动基金(20142041)
关键词
钢筋混凝土梁
开裂荷载
截面抵抗矩塑性影响系数
弯曲抗拉强度
reinforced concrete beam
crack load
plastic influence coefficient of sectional resistance moment
flexural ＂tensile strength
