Masonry buildings in urban areas can be damaged by differential ground movements caused by underground excavations. Existing procedures for the assessment of building damage due to excavation-induced settlements include the effect of the building on the settlement trough in terms of building stiffness relative to soil stiffness. In these procedures, the relative stiffness is calculated by considering either the bending stiffness or the shear stiffness of the building. In this paper, finite element modelling of buildings subjected to tunneling-induced settlements is used to determine the relative importance of shear and bending deformations in damage predictions. Computational modelling was first validated by simulating centrifuge tests on 3D printed small scale models of masonry buildings subjected to tunneling in sand. Using a similar modelling approach, a sensitivity study was then conducted on the governing effect of shear or bending deformations for different amounts of facade openings. Results indicate the need to include both shear and bending deformation in assessment procedures, and provide essential data towards this objective.
|Number of pages||8|
|Publication status||Published - Apr 2017|
|Event||EURO:TUN 2017: IV International Conference on Computational Methods in Tunneling and Subsurface Engineering - Innsbruck, Austria|
Duration: 18 Apr 2017 → 20 Apr 2017
|Period||18/04/17 → 20/04/17|
Giardina, G., Ritter, S., DeJong, M. J., & Mair, R. J. (2017). Influence of building geometry on bending and shear deformations of buildings subject to tunnelling subsidence: numerical modelling. Paper presented at EURO:TUN 2017, Innsbruck, Austria.