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.
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.
出处
《长沙理工大学学报（自然科学版）》
CAS
2006年第3期54-60,共7页
Journal of Changsha University of Science and Technology:Natural Science
基金
国家自然科学基金资助项目(50478032)
关键词
连续梁桥
使用期
时变体系可靠度
continuous RC bridge
service life
time-dependent systems reliability
