On the dynamic behaviour of masonry beam-columns: An analytical approach

被引：4
作者：
Girardi, Maria [1 ]
机构：
[1] ISTI CNR, Ist Sci & Tecnol Informaz A Faedo, I-56124 Pisa, Italy
来源：
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS | 2014年 / 45卷
关键词：
Masonry-like materials; Nonlinear dynamics; Averaged Lagrangian method; MICROMECHANICAL MODEL; DAMAGE MODEL; HOMOGENIZATION;
D O I：
10.1016/j.euromechsol.2013.12.005
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The paper presents an analytical approach to the study of the transverse vibrations of masonry beam-columns. Starting with the constitutive equation for beams made of a masonry-like material and the averaged Lagrangian of the system, some explicit approximate solutions are found to the problem of free damped periodic oscillations and forced oscillations in the case of primary resonance on the beam's first mode. In particular, a set of equations is obtained that gives the modulation over time of the system's energy and of the fundamental frequency of the beam's response. The analytical results are compared to those obtained via the finite element code NOSA-ITACA, developed at ISTI-CNR. (C) 2013 Elsevier Masson SAS. All rights reserved.
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收藏
页码：174 / 184
页数：11
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