超高层建筑空间巨型框架-核心筒结构的共振响应  

THE RESONANT RESPONSE OF MEGA-FRAME-CORE-TUBE STRUCTURES OF SUPER TALL BUILDINGS

作　　者：龚耀清[1] 兰自贤[1] 

机构地区：[1]河南理工大学土木工程学院,河南焦作454000

出　　处：《工程力学》2009年第3期55-63,共9页Engineering Mechanics

基　　金：河南省重点学科项目(504906;507909)

摘　　要：利用半解析方法对超高层建筑空间巨型框架-核心筒结构的共振响应进行了分析计算,所用的动力模型为具有连续分布质量和刚度的三维连续化模型,也就是将超高层建筑空间巨型框架-核心筒结构与其基础等效连续化为一个支撑在半无限大弹性地基上的加劲薄壁筒中筒。计算结果表明:分析模型是合理的、可行的,从而为认识此类巨型结构的动力特性提供了一种新的途径和方法。The resonant responses of mega-frame-core-tube structures are analyzed by the semi-analytical method based on ODE （Ordinary Differential Equation） solver, using a continuously distributed mass and stiffness model in space dimension. That is, the mega-frame-core-tube structure and its foundation are simplified equivalently and continuously into a three-dimensional model, a stiffened thin-walled tube-in-tube on a semi-infinite elastic subgrade. The computed results indicate that the model is reasonable and feasible, and a new approach as well as a new dynamic analytical method is developed for the insight into dynamic performance of mega-frame-core-tube structures.

关 键 词：超高层建筑:巨型框架.核心筒结构 共振响应 半解析方法 常微分方程求解器 

分 类 号：TU973[建筑科学—结构工程]