A two-stage numerical analysis approach for the assessment of the settlement response of the pre-damaged historic Hoca Pasha Mosque
A two-stage numerical analysis approach for the assessment of the settlement response of the pre-damaged historic Hoca Pasha Mosque
复制标题
用于评估受损前历史悠久的霍卡帕夏清真寺沉降响应的两阶段数值分析方法
DOI：
10.1080/15583058.2018.1469174
复制
发表时间：
2019
影响因子：
2.4
通讯作者：
W. Broere
中科院分区：
文献类型：
--
作者：
K. D. Dalgic;M. Hendriks;A. Ilki;W. Broere
摘要本文介绍了历史悠久的Hoca Pasha清真寺的沉降响应的案例研究，涉及复杂的挖掘活动，土壤性质，建筑材料，几何形状和清真寺的墙壁中存在的预先存在的裂缝所产生的不确定性。其目的是证明一个两阶段的数值分析方法的建筑物的沉降响应的评估的附加值。第一阶段包括使用每个墙的监测沉降分析结构行为。第二阶段检查整个建筑的行为。通过离散的接触面单元，考虑了土-结构相互作用和预存裂缝的影响。结果表明，执行模拟可以合理地再现整体沉降响应，产生的应力和预先存在的裂缝活动。第二阶段的参数分析也产生了可推广的结果，其用途超出了具体情况。也就是说，随着土壤/结构刚度比的增加，沉降引起的脆弱性增加。在分析中包括土-结构相互作用减少了由于不均匀沉降引起的拉伸应变。包括预先存在的裂纹减少了裂纹附近的拉伸应变，但导致相邻部分的应力增加。
ABSTRACT The current article presents a case study of the settlement response of the historic Hoca Pasha Mosque that involves uncertainties arising from the complex excavation activities, soil properties, building materials, and geometry and the presence of pre-existing cracks in the mosque’s walls. The objective is to demonstrate the added value of a two-stage numerical analysis approach for the assessment of the settlement response of the building. The first stage comprises analyses of the structural behavior using the monitored settlements for each wall. The second stage examines the behavior of the complete building as a whole. The effects of soil-structure interaction and the pre-existing cracks are considered through discrete interface elements. It is shown that executed simulations can reasonably reproduce the overall settlement response, resulting stresses and the pre-existing crack activities. The parametric analyses in the second stage also produce generalizable results, of use beyond the specific case. Namely, as the soil/structure stiffness ratio increases the settlement-induced vulnerability increases. Including soil-structure interaction in the analyses reduces tensile strains due to differential settlements. Including pre-existing cracks reduces tensile strains in the vicinity of the cracks but results in an increase of stresses in neighboring sections.