| 1. | 2 . the effect of large deflection on the initial equilibrium configuration is studied
2 .讨论了斜拉桥几何非线性对初始平衡构型的影响。 |
| 2. | It is more reasonable that any succeeding analysis starts from the initial equilibrium configuration
从这一平衡变形构型开始后续的分析比较合乎实际。 |
| 3. | It is demonstrated that elastic and small deflection static analysis is adequate to calculate the static initial equilibrium configuration of large span cable - stayed bridges
结果表明：大变形效应对恒载下构件的内力和桥面系变形影响很小，线性的静力分析足以满足要求。 |
| 4. | Finite element modal analysis of large span cable - stayed bridges is a " pre - stress modal analysis " based on the deformed equilibrium configuration due to dead load and cable pre - tensions . starting from the initial equilibrium configuration might have a minimal
3 .考虑了恒载效应对模态分析的影响，即从初始平衡构型进行模态分析，是带有“初应力”的模态分析。 |
| 5. | The results indicate that the stability for bifurcation point equilibrium configuration and post - buckling equilibrium path of roof strata can be revealed and an effective method for determining displacement field of imperfection structure can be provided by using initial post - buckling theory
应用初始后屈曲理论可揭示浅埋煤层长壁开采顶板岩层的分叉点平衡构形及后屈曲平衡路径的稳定性，是确定非完善结构位移场的一种有效方法。 |
| 6. | Some key issues in the modeling of a long span composite cable - stayed bridge are discussed such as cable tension , dead load , large deflection , concrete deck stiffness , concrete deck - steel girder connection , and boundary condition . some conclusion can drawn from the thesis : 1 . the initial equilibrium configuration of the bridge is clarified in the thesis
本文深入讨论大跨度结合梁斜拉桥"基准"有限元模型建立过程中的几个关键问题并得到一些有意义的结论： 1 .明确斜拉桥在索初应力和恒载作用下的初始平衡构型? ?处于初始平衡状态时的几何位置，给出了其计算方法。 |
