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将精细积分法引入结构碰撞问题研究中,并借鉴已有反应谱定义提出结构碰撞加速度动力系数谱的概念,采用精细积分法对相邻结构进行了Ⅰ类、Ⅱ类和Ⅲ类场地下碰撞加速度动力系数谱研究。结果表明,精细积分法用于结构的碰撞分析,计算精度和效率较高,对求解结构碰撞问题是适用的;不同场地类型的地震动输入下,结构的碰撞响应有差异,总体上II类场地结构碰撞力响应最大;结构碰撞力对初始间隙大小并不敏感,阻尼比的增加使结构的碰撞力响应降低。
The precise integration method is introduced into the research of structural collision problem, and the concept of dynamic acceleration coefficient spectrum of structural collision acceleration is proposed based on the definition of the existing response spectrum. The collision acceleration of adjacent structures in Class I, II and III fields Study on Dynamic Coefficient Spectrum. The results show that the precise integration method is applied to the structural analysis of the collision with high accuracy and efficiency and is suitable for solving the structural collision problems. The impact responses of the structures under different types of ground motions are different. Generally speaking, The structure’s impact force is the largest. The structure’s impact force is not sensitive to the initial gap size. The increase of the damping ratio reduces the impact force of the structure.