大跨度斜拉桥是现代桥梁最具竞争力的桥型之一。
Long span cable-stayed bridge is one of the most important modem bridge types.
最后，本文还展望了复合材料在大跨度斜拉桥中的应用前景。
Finally, the prospect of composite materials utilized in great span cable stayed Bridges is predicted.
大跨度斜拉桥在设计过程中必须考虑斜拉索垂度对结构的影响。
In the design process of large span cable-stayed bridge, the influences of diagonal rope sags on the construction must be taken into account.
最后，根据本文的分析结果，提出了大跨度斜拉桥结构阻尼消能减震设计建议。
At last, based on the results obtained, some Suggestions about the design of viscous dampers in the long-span cable-stayed bridge are presented.
大跨度斜拉桥由于存在众多不同的失效模式，导致其体系可靠度分析比较困难。
The system reliability analysis of long-span cable-stayed bridges is difficult because the failure of the structural systems may be happened in many different failure modes.
结果表明，设置粘滞阻尼器能有效地减小大跨度斜拉桥结构塔、梁位移、内力反应。
The results show that the use of viscous dampers can drastically reduce displacements and internal forces of the structure.
混凝土索塔钢锚箱的结构形式由于其受力方式明确、施工方便等优点已开始在大跨度斜拉桥中应用。
The distribution formula of horizontal component force between steel anchor cell and concrete tower wall was deduced then.
结构在施工期的平均风险远远高于使用期，开展大跨度斜拉桥施工期间的风险分析研究是十分必要的。
The average risk of structure in construction period is far higher than one in use period. To make the risk analysis study is very necessary in the construction of large-span cable-stayed bridge.
建立的方法对大跨度斜拉桥进行几何非线性分析具有较高的计算精度．同时能够合理确定斜拉桥初始索力。
The results show that the accuracy of analyzing geometrical nonlinearity of long-span cable-stayed bridges by the presented procedure is validated. The initial cable forces can be well determined.
大跨度斜拉桥一般都是交通运输的枢纽工程，一旦在地震中遭到破坏，将会造成巨大的直接和间接经济损失。
Long span cable-stayed bridges generally are the key structures of transportation system. Great direct and indirect economic loss will be caused if these bridges getdamaged in an earthquake.
讨论了大跨度斜拉桥动力分析中质量矩阵、刚度矩阵和阻尼矩阵的处理方法以及斜拉桥动力分析模型的建立方法。
The treatment of mass matrix, the stiff matrix, the damp matrix and the dynamic model of cable-stayed Bridges in the analysis concluded in this research.
基于有限单元法，推导出多自由度结构体系在地震作用下的增量形式的运动方程，建立了大跨度斜拉桥的地震激励模型。
The incremental motion equations of a M DOF structural system excitated by seismic waves are formulated based on FEM, and a seismic response model for cable stayed bridges are proposed.
因此，对大跨度斜拉桥结构桥梁采取合理有效的抗震措施以确保其在地震中的安全性，具有十分重要的社会和经济意义。
So it is very important to adopt the effective seismic fortification measures to insure the safety of the structure in earthquake.
通过建立斜拉桥优化模型，运用结构分析方法，结合优化算法计算实例，对大跨度斜拉桥的动力优化设计进行了初步的探讨和研究。
Through building optimum model of truss Bridges, utilizing structural analysis methods and combining examples of optimum algorithms, the dynamic design of wide span truss Bridges is discussed.
在工程中可实施的仿真控制精度和控制范围内实现了对大跨桥梁结构减震控制的仿真分析。大跨度斜拉桥的算例说明了这一技术是可行、有效的。
The simulating control analysis is made for a cable stayed bridge in the possible simulating precision and scope of control force, and it is shown that the technology is feasible and effective.
本文分析了FRP材料的特点以及与传统材料相比的突出优点，特别分析了FRP材料用于大跨度斜拉桥或悬索桥时，可以使结构的极限跨径有很大的提高，可以为一些特大跨径桥梁的设计提供新的思路。
Then the application of FRP in long span bridge is introduced. It is analyzed that how the extreme span can be enlarged when the FRP material is adopted in cable stayed bridge or suspension bridge.
斜拉桥由于其跨度大、结构柔，在动力行为方面有不同于一般工程结构的特殊性。
There're some specializations of the cable-stayed bridge in its dynamic behavior, because of long span and flexibility of structure than others general engineering structure.
由此，作者比较全面地认识了混合梁斜拉桥的各种静力、动力和稳定性能，掌握了运用有限元软件计算分析大跨度桥梁的方法。
Therefore, the author realized the static, dynamic and stable behaviors of hybrid girder cable-stayed bridge, and comprehensively understood the analysing method of the large span cable-stayed bridge.
本文提出了一种分析列车、大跨度钢桁梁斜拉桥系统空间振动的方法。
In the paper, a method for spatial vibration analysis of the system of train and long span steel trussed cable-stayed bridge is presented.
抗风与抗扭是大跨度单索面斜拉桥结构分析中的两大关键问题。
Win and torsion resistances are two key points in the structural analysis of large -span monocable stayed Bridges.
基于合理的列车走行性评价指标，对货物列车和高速客车通过该桥时的走行安全性与舒适性进行了分析，探讨了大跨度公铁两用斜拉桥用于货物列车和高速客车混行的可行性。
Based on the reasonable train runability evaluations, the train running safety and passenger riding comfort with freight trains and high-speed trains across the bridge were especially studied.
基于合理的列车走行性评价指标，对货物列车和高速客车通过该桥时的走行安全性与舒适性进行了分析，探讨了大跨度公铁两用斜拉桥用于货物列车和高速客车混行的可行性。
Based on the reasonable train runability evaluations, the train running safety and passenger riding comfort with freight trains and high-speed trains across the bridge were especially studied.
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