摘要
服役中大量钢筋混凝土梁式桥的结构性能急待采取行之有效的方法对其进行评估 ,以便研究进一步采取的措施。本文基于四片板梁和四片T梁模型室内试验结果 ,并由开裂截面的几何关系和裂缝开展理论 ,经回归分析及结构非线性分析 ,建立了以裂缝特征统计参数推测结构配筋率的方法 ,达到有效评估结构性能的目的 ,将结构外观检查的定性评估升级为定量评估 ,具有重要的使用价值。该方法简便可行。
The crack characteristics and the damage evaluation for an existing RC beam bridge are studied Four pieces of RC plate beam and four pieces of RC T?beam are made and tested in the laboratory A method for the reinforcement ratio of the existing structure is proposed in the paper It is based on the statistical data of the crack characteristics It comes from the geometrical relationship of the cracked section and the crack development The regression analysis and the nonlinear analysis both are used in the study It is met that the aim is to evaluate the structural performance more effectively
出处
《土木工程学报》
EI
CSCD
北大核心
2003年第2期6-9,共4页
China Civil Engineering Journal
关键词
损伤
评估方法
试验
钢筋混凝土
梁
裂缝
配筋率
reinforced concrete beam,crack feature,ratio of reinforcement,evaluation of structural performance
