剪切型结构阻尼矩阵强迫解耦法的修正研究  

Studying on Updating of the Forced Decoupling Method of Damping Matrix of Shear Frame Structure

作　　者：左媛[1] 邢百朋[1] 刘平[1] 

机构地区：[1]扬州大学建筑科学与工程学院,225127

出　　处：《特种结构》2013年第6期77-79,共3页Special Structures

摘　　要：在剪切式结构研究中,阻尼是分析结构动力的主要参数,阻尼特性的不同和结构的动力响应密切相关,进而影响到结构的抗震性能的研究结果。本文以粘滞阻尼模型为基础,提出了一种阻尼力等效原理,并依据此原理提出了一种修正的强迫解耦方法。采用修正的等效强迫解耦方法,给出了阻尼矩阵强迫解耦后主对角线元素的递推表达式。In the studies of shear frame structures,damping is the main analysis parameter of structural dynamic.Damping characteristics are closely related to dynamic responses of the structure.Thus,it affects the study results of the seismic performance of the structure.Based on the viscous damping model,this paper proposed damping force equivalent principle and a updating forced decoupling method according to damping force equivalent principle.Using the updating forced decoupling method,this paper modified the recursion expression of the main diagonal elements after the damping matrix forced decoupling.

关 键 词：剪切式结构 阻尼矩阵 强迫解耦 矩阵修正 

分 类 号：TU352.11[建筑科学—结构工程]