摘要
纵横梁桥面系统中主梁的跨度较长,纵梁上直接承受的车队荷载数量多且数值大,主梁设计中绝对最大挠度的确定是关键内容.研究了一组平行车队荷载直接沿着纵梁移动时,主梁承受结点活载下绝对最大挠度数学模型的建立;并给出了相应的计算方法,以计算机为工具,适用于任意有限多个平行移动荷载作用工况,对于主梁的设计计算与安全评估,有一定的实用价值.
The primary beam on bridge system composed of longitudinal and transverse beams often has a long span and the moving loads acting on longitudinal beams are more and heavier, so stiffness-checking calculation on primary beam design is very important. In this article, the research work was mainly on how to builde mathematical model and its calculating method on absolute maximum deflection of primary beam when longitudinal beams were acted by any finite parallel moving loads. By using computer, the method can be used to any finite parallel moving loads, so it is very useful to primary beam design and safety evaluation.
出处
《数学的实践与认识》
CSCD
北大核心
2006年第2期156-159,共4页
Mathematics in Practice and Theory
关键词
移动荷载
主梁
绝对最大挠度
数学模型
0.618法
moving load
primary beam
absolute maximum deflection
mathematical model
0. 618method
