考虑抗力退化的公路钢筋混凝土梁抗弯强度可靠性分析

The reliability analysis of highway reinforced concrete beam bending strength based on resistance deterioration

本文采用了一个时变荷载模型和一个考虑了钢筋锈蚀、钢筋屈服拉力、混凝土抗压强度和粘结力等多个影响因素的多参数抗力劣化模型 ,对公路钢筋混凝土梁抗弯强度可靠性在服役期内的变化趋势进行了研究 。

In this paper,based on a time dependent load model and a resistance deterioration model which has been considered several parameters such as the corrosion and the yield tension force of reinforcement?the compressive strength of concrete and the bond force,the change tendency in the service life of bending strength reliability about the highway reinforced concrete beam is studied,and according to an example,the sensitivity of the parameters which can influence the reliability are analyzed.