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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 108
PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING
Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping
Paper 73

Response of Masonry Cavity Cladding subject to Blast Loading

J. Gu, L. Macorini and B.A. Izzuddin

Civil and Environmental Engineering Department, Imperial College, London, United Kingdom

Full Bibliographic Reference for this paper
J. Gu, L. Macorini, B.A. Izzuddin, "Response of Masonry Cavity Cladding subject to Blast Loading", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 73, 2015. doi:10.4203/ccp.108.73
Keywords: masonry, cavity walls, cladding, mesoscale partitioned modelling, blast loading.

Summary
This paper investigates the response of a typical cladding system with masonry cavity walls subject to blast loading and the transfer of the blast loads to the surrounding frame. A recently developed mesoscale mixed-dimensional partitioned modelling framework is adopted, where a detailed mesoscale description for the masonry panels is utilised to achieve the desired accuracy, and a domain-partitioning scheme is adopted to enhance computational efficiency. Two different simplified idealisations representing the parts of the masonry cavity cladding at mid-span and near-column locations are considered to investigate the specific responses of the different parts of the cladding. As the cladding panels show brittle failure modes at the mid-span locations, the restraints provided by the edge columns allow a more ductile failure mode. These different failure characteristics are verified considering the results of a larger model representing the portion of a masonry cavity wall between two adjacent columns in a realistic framed building.

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