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铁路上承钢板梁桥横向加固研究及计算

Study and Calculation of the Transverse Reinforcement of the Deck-Type Steel Plate Girder Railway Bridge

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【Author】 LI Wen-ping 1 , REN Jian-ying 2 , SU Mu-biao 3 (1.School of Civil Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043,China; 2. Department of Mechanics and Engineering Science, Shijiazhuang Railway Institute, Shijiazhuang 050043, China; 3. Structural Health Monitoring and Control Institute, Shijiazhuang Railway Institute, Shijiazhuang 050043, China)

【机构】石家庄铁道学院土木工程分院；石家庄铁道学院力学与工程科学系；石家庄铁道学院大型结构健康诊断与控制研究所河北石家庄050043；河北石家庄050043；河北石家庄050043；

【摘要】以提高桥梁横向自振频率和降低横向振幅为目的,对40m上承钢板梁桥的横向静力加固方案进行了分析和研究,并建立三维空间有限元的桥梁模型,用大型有限元Algor12程序进行了动力模态分析,计算出各种加固方案的横向自振频率。结果认为,上下平纵联均为交叉杆件并双倍加固的同时,跨中横联改造为横隔板后,对提高梁体的横向第一自振频率效果最好。更多还原

【Abstract】 The transverse reinforcement of open steel plate beams is studied and calculated in this paper. In order to increase the bridge transverse free frequency and decrease the transverse amplitude, reinforcement plans are presented. Dynamic mode and three-dimensional static analyses are carried out with the aid of the large finite element program Algor12 by using beam & plate finite element bridge models. And the transverse frequencies of the reinforcement plans are calculated.更多还原

【关键词】钢板梁；横向加固；横向自振频率；
【Key words】 deck-plate steel bridge； transverse reinforcement； transverse frequencies；

【文献出处】国防交通工程与技术 ,Traffic Engineering and Technology for National Defence , 编辑部邮箱 ,2005年03期

【分类号】U445.72
【被引频次】5
【下载频次】86

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