THREE-DIMENSIONAL (3D) EQUILIBRIUM ANALYSIS OF GOTHIC MASONRY VAULTS

被引:58
作者
Block, Philippe [1 ]
Lachauer, Lorenz [1 ]
机构
[1] ETH, Inst Technol Architecture, CH-8003 Zurich, Switzerland
关键词
unreinforced masonry structures; Gothic vaults; Gothic rose windows; flow of forces; equilibrium analysis; limit analysis; funicular analysis; thrust network analysis; geometric safety factor;
D O I
10.1080/15583058.2013.826301
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This study presents a practical method for three-dimensional static equilibrium analysis for masonry vaults using funicular networks. The method, a nonlinear extension of Thrust Network Analysis, is explained, and through three exemplary case studies, the potential of this new research is demonstrated. These examples discuss different assumptions on the flow of forces in Gothic quadripartite vaults; visualize the flat-vault equilibrium of rose windows under wind loading; and provide a stability analysis of the intricate nave vaults of Sherborne Abbey, Dorset, England. The presented approach provides insights in structural redundancy of unreinforced masonry structures by quantifying lower bounds on the geometric safety factors. The method for efficient funicular analysis of complex vault geometries furthermore provides the foundation for a fully three-dimensional funicular analysis implementation, extending thrust line analysis to three-dimensional thrust networks, for historic masonry.
引用
收藏
页码:312 / 335
页数:24
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