摘要
对于高墩大跨梁桥,由于其日益广泛地采用高强材料和薄壁结构,因而稳定问题也就更显重要。本文介绍了高墩大跨梁桥的2类稳定问题,论述了第1类稳定问题和第2类稳定问题,并引入有限元提出其求解方法,将非线性影响引入稳定问题,同时还利用大型桥梁设计分析系统BRDH对丹江口二桥稳定性进行了分析。
Two issues related to the stability of large span beam bridges with high piers are introduced and discussed in this paper. A solution is put forward based on the finite element method and the nonlinear influence is considered in the stability analysis. The stability of No. 2 Danjiangkou Bridge is analyzed by using the large bridge design analytical system BRDH.
出处
《公路交通技术》
2005年第4期94-96,共3页
Technology of Highway and Transport
关键词
高墩大跨梁桥
非线性
稳定分析
设计分析系统BRDH
有限元
large span beam bridge with high pier
nonlinear
stability analysis
design analytical system BRDH
finite element
