摘要
根据贝叶斯统计理论思想,基于我国规范(GB 50010-2010)中钢筋混凝土梁斜截面受剪承载力计算模型,对钢筋混凝土梁斜截面受剪承载力进行预测。以共轭分布为先验分布,以收集到的79组试验数据为样本点,对未知模型参数进行估计。研究表明:该方法继承了先验模型的完备性和试验数据的准确性,能对钢筋混凝土梁斜截面受剪承载力进行合理预测。
Shear strength prediction of reinforced concrete beams is analyzed based on the Bayesian theory. Two types of informa-tion, the prior model that shear capacity calculation formula in Chinese code, and the conjugate prior information, are synthesized into Bayesian posterior estimate for unknown parameters. It shows that this method inherits the completeness of prior model and the accura-cy of test data. The shear strength based on conjugate prior information can be conveniently used for the prediction of the shear capacity for reinforced concrete beams, and the calculated results are proved good by test data.
出处
《山西大同大学学报（自然科学版）》
2017年第5期63-65,86,共4页
Journal of Shanxi Datong University(Natural Science Edition)
关键词
共轭先验分布
钢筋混凝土梁
斜截面受剪
参数估计
conjugate prior information
reinforced concrete beams
shear strength
Bayesian parameter estimation
