Seismic vulnerability of historical orthodox churches in Romania: numerical modelling and retrofit solutions

[摘要] Historical orthodox churches in Romania are generally masonry structures, built without a clear understanding of earthquake demands. Past earthquakes have shown specific damage patterns for these buildings: damages in domes and bell towers, damages of the church nave (particularly a general longitudinal dislocation), damages of the infrastructure. As some of the existing buildings have high architectural or historical value, their structural strengthening is important. Typical failure mechanisms for churches under earthquake loads are identified. Based on these mechanisms, the methods for assessing the seismic vulnerability of existing churches are discussed. A historical listed church is considered as case study. The considered numerical model is presented. Qualitative and quantitative results obtained from the numerical model for the un-retrofitted building are analysed. A retrofit solution is proposed. Comparisons are made between the expected structural behaviour of the church in its present state and after structural strengthening. Conclusions are drawn regarding the seismic vulnerability of this type of buildings.

[发布机构] Faculty of Civil, Industrial and Agricultural Buildings, Technical University of Civil Engineering, 122 - 124 Lacul Tei Blv, Bucharest; 020396, Romania^1;Popp and Asociaii SRL, 136 Calea Griviei 136, Bucharest; 010737, Romania^2

[学科分类] 土木及结构工程学

[关键词] Earthquake demands;Masonry structures;Quantitative result;Retrofit solutions;Seismic vulnerability;Structural behaviour;Structural strengthening;Typical failures