基于强解耦方法的土—结构平扭耦联参数分析

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振动与冲击 ›› 2009, Vol. 28 ›› Issue (10) : 154-157.

论文

基于强解耦方法的土—结构平扭耦联参数分析

姜忻良1,2;王美丽1;王学艳3

作者信息 +

PARAMETRIC RESEARCH ON TORTIONAL COUPLING OF SOIL-STRUCTURE INTERACTION SYSTEM BASED ON FORCED DECOUPLING METHOD

JIANG Xin-liang 1,2;WANG Mei-li 1;WANG Xue-yan3

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文章历史 +

摘要

为分析各参数对地基土－偏心结构相互作用体系的影响规律，本文利用地基土－单层偏心结构运动方程求得的解析解编制了MATLAB程序，详细分析了扭平频率比Ω、偏心率B、结构高宽比λh和地基土特性对相互作用体系自振特性、弹性地震反应的影响规律以及对平扭耦联程度的影响情况，得到了各种土性条件下，地基土－偏心结构相互作用体系与刚基上偏心结构在平动位移与扭转位移传递函数的差异与变化趋势等规律。

Abstract

In order to study the effect of different parameters on the dynamic response of soil-asymmetric structure system, a MATLAB program based on the analytic solution of interaction system’s dynamic equation was developed in this paper. Then, the influence of torsional to translational frequency ratio Ω, eccentricity ratio B, height-to-base ratio λh and the foundation properties on the natural vibration characteristic, elastic seismic response and the lateral-torsional coupling effect of the interaction system were thoroughly analyzed. It is concluded that the influence of such parameters on the lateral displacement transfer functions and torsional displacement transfer functions of the soil-asymmetric structures are different from the influencing laws of parameters on asymmetric structures on rigid foundation.

导出引用

姜忻良;王美丽;王学艳. 基于强解耦方法的土—结构平扭耦联参数分析[J]. 振动与冲击, 2009, 28(10): 154-157

JIANG Xin-liang;WANG Mei-li;WANG Xue-yan. PARAMETRIC RESEARCH ON TORTIONAL COUPLING OF SOIL-STRUCTURE INTERACTION SYSTEM BASED ON FORCED DECOUPLING METHOD[J]. Journal of Vibration and Shock, 2009, 28(10): 154-157

中图分类号： TU311.3 TU352.1+1