Stability of Multi-Wythe Historic Stone Masonry Walls ...

• Main Author: Isfeld, Andrea
• Format: Article in Journal/Newspaper
• Language: English
• Published: Graduate Studies 2016
• Subjects: Engineering > Civil; Materials Science; Masonry; Heritage Structures; Discrete Element Modelling; Finite Element Modelling; Structures; Churchill
• Online Access: https://dx.doi.org/10.11575/prism/27864; https://prism.ucalgary.ca/handle/11023/2770

The Prince of Wales Fort was constructed in the 18th century in Churchill, Manitoba, in the Vauban style, being the most northerly construction of its kind, and intended to secure the fur trade in northern Canada for the British. The perimeter walls consist of two wythes of cut ashlars and a rubble core. Annual maintenance has become necessary to maintain this fort as a heritage structure with the rate of deterioration accelerating in the last decade, requiring the initiation of a large restoration project. This project involves rebuilding of damaged wall sections. During the course of the work, sections of wall thought to be in good condition were found to be undergoing significant displacements and were added to the project scope. Subsequently a more thorough understanding of the causes of failure was desired so work could be done to prevent further problem areas. To test the hypothesis that failure was initiated by degradation of the mortar within the walls, micro-modelling using both the Discrete (DEM) ...