预加力对钢箱梁振动特性的影响  

Influences of Prestress on Vibration Behavior of Simply Supported Steel Box Girder with Prestressed Tendons

作　　者：贾艳敏[1] 王佳伟[1] 赵颖[1] 丁印成[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2008年第4期51-53,共3页Journal of Northeast Forestry University

摘　　要：以预应力简支钢箱梁模型试验的测试结果为基础,应用有限元分析软件ANSYS建立了普通简支钢箱梁和预应力简支钢箱梁模型,并得到模型试验的良好验证;采用有限元法分析了预加力对简支钢箱梁振动特性的影响。Models of simply supported steel box girder and simply supported steel box girder with prestressed tendons were established by finite element analysis software based on the result of model experiment of simply supported steel box girder,with prestressed tendons. Model experiment verifies that the models are in good agreement with the experimental results. Influence of prestress on vibration behavior of simply supported steel box girder was analyzed by the finite element method.

关 键 词：预应力简支钢箱梁 固有频率 固有振型 振幅 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]