东南大学学报（自然科学版）2001，Vol.31Issue(3)：94-98,5.
旧钢筋混凝土简支梁桥承载潜力因素分析
Potential Load-Bearing Capacity Factors’ Analysis of Old Reinforced Concrete Simple-Supported Beam Bridges
李宏江 1叶见曙 1王康2
作者信息
- 1. 东南大学交通学院,
- 2. 河北工业大学土建学院,
- 折叠
摘要
Abstract
After considering the unfavorable factors of influencing the bearing capacity of old bridges, the authors analyze several beneficial factors of the potential load-bearing capacity of old reinforced concrete simple-supported beam bridges, including the unaware continuity, restraint, composite action, lateral load distribution, variation of concrete strength and steel bar strength, etc. Through the results of laboratory scale model tests and practical bridge load tests, each factor’s influential coefficient is given quantitatively, and these factors' coefficients are embodied in the calculation expression of the load effect and structural resistance effect. Based on the existing method of bridges’ assessment, a revised formula of the potential load-bearing capacity of old bridges is provided. Combined with an engineering case, the steps of using this revised formula are explained for assessing old bridges, which provides engineers with a theoretical basis to repair and transform old bridges.关键词
旧桥/钢筋混凝土/简支梁/承载潜力分类
交通工程引用本文复制引用
李宏江,叶见曙,王康..旧钢筋混凝土简支梁桥承载潜力因素分析[J].东南大学学报（自然科学版）,2001,31(3):94-98,5.
