【作者】 张宇辉； 张献民；

【Author】 Zhang Yuhui Zhang Xianmin (The Transport Engineering Department,The Civil Aviation University.of China,Tianjin China,300300)

【机构】 中国民航大学交通工程学院；

【摘要】 某桥梁出现主梁横向裂缝,且边梁纵向多处开裂,桥梁结构严重破坏。根据力学分析及实验研究结果对其进行钢板、碳纤维加固处理,采用动静载力学分析方法及附加荷载技术研究了桥梁加固前后的位移、挠度、应变、频率等动静力学参数变化情况,对加固后桥梁特性作出完整评价,为桥梁加固效果分析提供重要依据。更多还原

【Abstract】 The lateral direction crack appeared in main beam of the bridge while some longitudinal direction cracks appeared in marginal beam;the structure of the bridge had been severe destroyed.The bridge bad been reinforced by steel plate and borofil based on the mechanical analysis and experimental study.The variation of mechanical parameters in dynamics and statics such as displacement,deflection,strain,frequency etc were studied before and after the reinforcement in the method of dynamic and static analysis and technique of additional load.The bridge character was analyzed entirely after reinforcement.Finally,the significant reference in analysis of reinforced bridge could be provided.更多还原