摘要
基于《规范》(JTG D62-2004)第5.1.1条的规定、钢筋混凝土梁受剪承载力的试验成果和《统一标准》(GB/T50283-1999)的规定,对《规范》中钢筋混凝土梁的受剪承载力计算公式进行了分析.分析表明,该计算公式中使用立方体抗压强度标准值是欠妥当的,且该计算公式的可靠指标计算结果不符合《统一标准》的规定.同时以与现行《规范》中的计算公式相协调以及满足《统一标准》中目标可靠指标的要求为原则,提出了钢筋混凝土梁受剪承载力的计算公式,并进行了相关分析.分析表明,建议的计算公式满足《统一标准》的规定.
On the basis of the regulation of Article 5. 1.1 in the code of JTG D62-2004, the experimental results of reinforced concrete beams and the regulations in the Unified Standard of GB/T50283-1999,an analysis was made on the calculation formula of shear capacity of reinforced concrete beams in the code. It is shown that the use of characteristic value of cube strength in the calculation formula is not proper, and the calculation results of reliability index are not in agreement with the regulations in the Unified Standard., According to the calculation formula in the code and the demand for design reliability index in the Unified Standard, a new calculation formula of shear capacity of reinforced concrete beams was put forward,and analysis was made on the new calculation formula. It is shown that the new calculation formula consists well with the regulations in the Unified Standard.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2006年第6期832-838,共7页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
江苏省建设系统科技计划项目(JS20042)
关键词
公路桥梁
钢筋混凝土梁
受剪承载力
计算公式
可靠指标
highway bridges
reinforced concrete beams
shear capacity
calculation formula
reliability index
