大跨度橋梁非線性靜力抗風(fēng)研究.pdf

大跨度橋梁非線性靜力抗風(fēng)研究

在傳統(tǒng)的橋梁風(fēng)荷載計算理論的基礎(chǔ)上,考慮到大跨度懸索橋的非線性特點,提出了大跨度懸索橋在
風(fēng)荷載作用下的非線性靜力失穩(wěn)理論,推導(dǎo)了適合計算的非線性剛度矩陣,并開發(fā)了大跨度橋梁的非線性靜力
抗風(fēng)計算程序,通過了實例分析驗證. 根據(jù)該理論分析和計算,本文對大跨度懸索橋的靜力抗風(fēng)研究提出了新的
思路和建議.

The bridge in the traditional calculation of wind load based on the theory, taking into account the nonlinear characteristics of long span suspension bridge, suspension bridge span in the proposed
 Wind Loads nonlinear static instability theory, derived for calculating the nonlinear stiffness matrix, and the development of long-span bridges in the nonlinear static
 Wind computer program is verified by a case study. According to the theoretical analysis and computation, this paper static long span suspension bridge study proposes a new wind
 Ideas and suggestions.