摘要
本文介绍了大跨度桥梁抗震设计的现状和所面临的困难 ,指出对大跨度桥梁合理的抗震分析方法应当进行多点激励随机地震反应分析 ,并对地震输入问题、随机地震动场的模拟和地震反应分析方法作了介绍。最后侧重介绍了结构振动控制技术的研究现状及其在大跨度桥梁中的应用。
The paper introduces the present situation and the difficulty of seismic design of long-span bridges. It points out that multi-point excitation random earthquake reaction analysis shall be made for the rational seismic analytic method of long-span bridges. It also introduces the input problem of earthquake, the simulation of random earthquake ground motion and seismic reaction analytic method. At last, it introduces mainly the present situation of the study on the structural vibration control technology and the application in long-span bridges.
出处
《城市道桥与防洪》
2002年第4期7-12,共6页
Urban Roads Bridges & Flood Control
