Abstract

This paper investigates the seismic capacity and collapse mechanism of dry-joint masonry towers built with different ancient construction techniques at the Caria and Pamphylia regions in Turkey. A discontinuum type of analysis is performed, where masonry towers are represented as a system of individual rigid blocks based on the discrete element method (DEM). The dimensions and the morphology of the masonry towers are obtained in-situ and then utilized in the computational models. Therefore, the wall cross-section morphologies reflected in the numerical models are accurate and authentic. The motion and mechanical interaction of blocks are computed by integrating the equations of motion and point contact approach based on the relative contact displacement, respectively. The seismic capacity and behavior of masonry towers are analyzed by subjecting them to increasing horizontal forces applied in different orientations. Once the modeling strategy is validated, it is further utilized to better understand the local and global failure mechanisms of ancient masonry towers constructed with different masonry bond patterns. The results of this study highlight the importance of workmanship for the dry-joint masonry structures and underline the significance of the geometrical properties in ancient constructions that influence both the capacity and collapse mechanism.

摘要

本文研究了土耳其卡里亚和潘菲利亚地区采用不同古代建造技术建造的干砌砌体塔的抗震能力和倒塌机制。执行不连续类型的分析，其中砌体塔表示为基于离散元方法 (DEM) 的单个刚性块的系统。砌体塔的尺寸和形态是原位获得的，然后用于计算模型。因此，数值模型所反映的墙体截面形貌是准确、真实的。通过分别基于相对接触位移的运动方程和点接触方法积分来计算块的运动和机械相互作用。砌体塔的抗震能力和性能通过在不同方向施加越来越大的水平力来分析。一旦建模策略得到验证，它就可以进一步用于更好地了解用不同砌体粘结模式建造的古代砌体塔的局部和全局失效机制。这项研究的结果突出了干砌砌体结构工艺的重要性，并强调了影响承载力和倒塌机制的古代建筑的几何特性的重要性。它被进一步用于更好地了解用不同砌体结合模式建造的古代砌体塔的局部和全局失效机制。这项研究的结果强调了干砌砌体结构工艺的重要性，并强调了影响承载力和倒塌机制的古代建筑的几何特性的重要性。它被进一步用于更好地了解用不同砌体结合模式建造的古代砌体塔的局部和全局失效机制。这项研究的结果突出了干砌砌体结构工艺的重要性，并强调了影响承载力和倒塌机制的古代建筑的几何特性的重要性。