摘要
B型梁是目前应用较广的小跨度多用途拆装式钢梁,文中利用Midas/Civil建立24mB型梁有限元模型,分别计算了自重和中-活载作用及荷载组合下的位移和应力、梁体的自振特性。通过比较分析表明:B型梁位移、应力均达到设计要求,符合规范规定。
For present time, B type girder is a widely applied removable small span steel girder. Via Midas/Civil, a 24m B type girder finite-element model is introduced in this thesis. Based on this model, self weight calculation, middle-live load function, further displacement stress under load combination, girder body＇s natural vibration characteristic are described respectively. Through these comparison and analysis, a conclusion can be obtained that the displacement and stress of B type bridge girder meets the design requirement and also corresponds with the specification provision.
出处
《交通科技》
2010年第2期27-29,共3页
Transportation Science & Technology
关键词
B型梁
有限元
空间模型
静力分析
自振特性
B type girder
finite element
space model
statical analysis
natural vibration characteristic
