Numerical models for the seismic assessment of an old masonry tower

被引：203

作者：

Pena, Fernando ^{[1
]}

Lourenco, Paulo B. ^{[2
]}

Mendes, Nuno ^{[2
]}

Oliveira, Daniel V. ^{[2
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico

[2] Univ Minho, Dept Civil Engn, ISISE, P-4800058 Guimaraes, Portugal

来源：

ENGINEERING STRUCTURES | 2010年 / 32卷 / 05期

关键词：

Dynamics; Non-linear analysis; Pushover; Tower; Rigid elements;

D O I：

10.1016/j.engstruct.2010.01.027

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The present paper describes the seismic assessment of the Qutb Minar in Delhi, India. Three models with different levels of complexity and simplification were developed. The use of these models allows one to overcome the complexity of the study of the seismic behavior of ancient masonry structures; by combining the results of the different models it is possible to obtain a better and more comprehensive interpretation of the seismic behavior. The models were used for non-linear static (pushover) and non-linear dynamic analyses. The static and dynamic analyses give different behaviors, indicating that the push-over analysis should be used carefully in the seismic assessment of masonry structures. For the static analysis, the base of the tower is the most vulnerable part; while according to the dynamic analysis, it is the upper part of the tower. This last behavior is according to the historical damage suffered by the tower due to earthquakes. The different behaviors can be explained by the influence of the higher modes of vibration. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1466 / 1478

页数：13

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