【摘要】 混凝土连续梁桥在使用期间的体系可靠度反映了其整体可靠性水平.由于桥梁在使用期间的抗力是随时间变化的,因此其体系可靠度也具有时变性.介绍并修正了桥梁抗力参数的时变模型和荷载模型,提出了混凝土连续梁桥时变体系可靠度计算方法,并结合一工程实例验证了该方法的可行性与有效性.更多还原

【Abstract】 The system reliability of a bridge during service life reflects its overall safety level.Because the resistance of a bridge is time-variant,its system reliability is time-dependent.In this paper,the time-variant models of parameters influencing resistance and the load model are introduced.The calculation method of system reliability for continuous RC bridge is suggested.A bridge example shows the efficiency of this proposed method.更多还原