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首页> 外文期刊>Bulletin of earthquake engineering >Analysis of the seismic behavior of classical multi-drum and monolithic columns
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Analysis of the seismic behavior of classical multi-drum and monolithic columns

机译：古典多鼓和整体柱的地震行为分析

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摘要

Greek classical temples constitute monuments of great historical and architectural value. The majority of them remain nowadays as free-standing multi-drum or monolithic columns or portals. Their present typology, in addition to their slenderness, render their response to seismic ground shaking quite distinct compared to that of modern structures. Rocking and/or sliding of the drums along their interfaces are the main modes of response under seismic loading. In this study, the seismic response of classical multi-drum columns is investigated by means of rigorous numerical analysis. An Ionic multi-drum column that has recently been restored at the Akropolis of Lindos in Rhodes, Greece, is used as a case study. The numerical analyses are performed using the finite element code ABAQUS. Numerical modelling is validated with a series of shaking table tests that were performed on a scaled multi-drum model column. Additional analyses are conducted by bonding perfectly the structural elements of the column, to investigate the seismic response of free-standing monolithic columns and compare with multi-drum columns of the same geometry. Through the presentation of representative results, critical parameters that affect the seismic response of this type of structures, including the amplitude and frequency content of the applied base excitation, the effect of uniaxial or multiaxial excitation and the interface characteristics, are highlighted and discussed. Particular emphasis is given on the stresses developed along the interfaces during shaking. The structural performance and overall stability of both the multi-drum and monolithic columns are investigated in terms of the maximum displacement of the capital against various intensity measures of the base excitation. The study contributes towards the improvement of the knowledge of the seismic performance of free standing rocking systems, such as the classical columns.
机译：希腊古典寺庙构成了具有重大历史和建筑价值的纪念碑。如今，它们中的大多数仍然是独立的多鼓柱或整体柱或大门。他们目前的类型，除了他们的细长，使得他们对地震地面震动的反应与现代结构的反应截然不同。在地震荷载作用下，滚筒沿其界面的摇摆和/或滑动是主要的响应模式。在本研究中，通过严格的数值分析研究了经典多鼓柱的地震反应。最近在希腊罗德岛林多斯的阿克罗波利斯修复的离子多鼓塔被用作案例研究。使用有限元程序ABAQUS进行数值分析。通过一系列振动台试验对数值模拟进行了验证，这些试验是在一个缩放的多滚筒模型柱上进行的。通过完美粘结柱的结构元件进行附加分析，以研究独立整体柱的地震响应，并与相同几何形状的多卷筒柱进行比较。通过代表性结果的介绍，强调并讨论了影响此类结构地震响应的关键参数，包括所施加基础激励的振幅和频率含量、单轴或多轴激励的影响以及界面特性。特别强调了振动过程中沿界面产生的应力。根据基础激励的各种强度措施下的最大位移，研究了多卷筒和整体柱的结构性能和整体稳定性。这项研究有助于提高对独立摇摆系统（如经典立柱）抗震性能的认识。

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