ABSTRACT

This study investigates the effects of near- and far-fault ground motion on the seismic behavior of historically inclined minarets. Inclined minarets built in Aksaray and Sivas, Turkey, are selected as numerical applications. The top of the Aksaray and Sivas minarets is 1.30 m and 1.23 out-of-plumb and the inclination values are 2.45° and 1.97°, respectively. Firstly, 3D finite element models of the minarets are created using solid elements by SAP2000 software and the numerical dynamic characteristics are determined numerically. 1992 Erzincan and 1999 Kocaeli earthquakes as near- and far-fault ground motion records are selected for the analyses. Maximum displacements, base bending moments, base shear forces, and principal stresses are determined using the finite element method. The results obtained for both earthquakes are compared with each other. It is clearly seen that near-fault ground motion has resulted in much larger response values for both minaret models when compared with far-fault ground motion and max stresses that occurred on the transition segments.

摘要

本研究调查了近断层和远断层地面运动对历史倾斜尖塔地震行为的影响。土耳其阿克萨赖和锡瓦斯建造的倾斜宣礼塔被选为数值应用。Aksaray 和 Sivas 尖塔的顶部偏离垂直高度 1.30 m 和 1.23，倾斜值分别为 2.45° 和 1.97°。首先，利用SAP2000软件利用实体单元创建宣礼塔的3D有限元模型，并对其数值动态特性进行数值确定。选择 1992 年 Erzincan 和 1999 Kocaeli 地震作为近断层和远断层地震动记录进行分析。使用有限元方法确定最大位移、基础弯矩、基础剪力和主应力。对两次地震获得的结果进行了比较。