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目前来说我国铁路桥梁基本为钢筋混凝土结构,因为钢筋混凝土桥梁结构的特殊性质,在对此类桥梁结构进行工程设计时必须十分重视其结构可靠性。本文从铁路钢筋混凝土桥梁的抗弯可靠性以及抗剪可靠性两个方面来着重分析,分析其抗弯可靠度指标以及抗剪可靠度指标的取值区间范围。期望本文的研究成果能够为我国铁路钢筋混凝土桥梁的结构设计的稳定性、可靠性以及安全性提升有所帮助。
At present, China’s railway bridge is basically a reinforced concrete structure. Because of the special nature of the reinforced concrete bridge structure, structural reliability must be paid great attention to when designing such a bridge structure. In this paper, the reliability of railroad reinforced concrete bridges and shear reliability are analyzed from two aspects, and the range of value of reliability index and shear reliability index are analyzed. It is hoped that the research results of this paper can be helpful for the stability, reliability and safety improvement of the structural design of railway reinforced concrete bridges in China.