铁路上承式钢板梁桥横向刚度加固  

The Reinforcement of Horizontal Stiffness of Railway Deck Plate Steel Girder Bridge

作　　者：顾民杰[1] 吴迅[1] 

机构地区：[1]上海铁道大学土木工程系

出　　处：《上海铁道大学学报》1998年第12期1-5,共5页

摘　　要：以提高上承式钢板梁横向自振频率为依据，提出了加固钢板梁横向刚度的多种方案，并运用板壳有限元理论，用大型有限元ＳＳＡＰ９３程序进行了动力模态和空间静力分析，对各种加固方案的可行性进行了分析。结果认为，同时进行上、下平纵联加固和钢板加固对提高钢板梁的横向自振频率效果最好。In accordance with the raising of horizontal free vibration frequency of the deck plate steel girders,many plans to reinforce the horiontal stiffness of plate steel girdes are set forth.The plate and shell finite element method is applied.Dynamic mode and triaxial static analysis are carried out to evaluate the feasibility of various reinforcement plans with the aid of the large finite element program SSAP93.

关 键 词：上承式钢板梁 横向刚度加固 板壳有限元 

分 类 号：U441.3[建筑科学—桥梁与隧道工程]