预应力简支钢箱梁基频和基本振型分析  

ANALYSIS ON BASE FREQUENCY AND BASE MODE OF SIMPLY SUPPORTED STEEL BOX GIRDER WITH PRESTRESSED TENDON

作　　者：贾艳敏[1] 王佳伟[1] 丁印成[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《低温建筑技术》2007年第4期51-54,共4页Low Temperature Architecture Technology

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普通简支钢箱梁的基频和基本振型的影响以及钢索索力大小、钢索截面面积和钢索的不同布置方式对预应力简支钢箱梁的基频和基本振型的影响。Based on the results of model experiment of simply supported steel box girder with prestressed tendon, models of simply supported steel box girder and simply supported steel box girder with prestressed tendon are established by means of ANSYS software and verified by model experiment. The finite element models are adopted to analyze the influence of prestress, the prestress value in cables, the cable section and the cable layout form on base frequency and base mode of simply supported steel box girder with prestressed tendon.

关 键 词：预应力简支钢箱梁 基频 基本振型 

分 类 号：TU378[建筑科学—结构工程]