AERZ civil structural consulting did structural assessment on an external masonry stairs on October 2024 on south east Calgary, Alberta. The assessment of stairs reveals foundation problems of stair foundation and unsafe conditions of stairs. The concrete foundation of the stair was rotating. The supports of stairs foundation were broken.
The rotation of the stair foundation has led to an increase of the stairs runs and top stair landing slopes. The increase slope of stairs and landing were more than allowable by the Alberta and national building code, and it became hazardous to owners.
Some references are:
1- CSA S304:24 Design of Masonry structures.
2- CSA 371:14 Masonry Construction for buildings.
3- Forensic Structural Engineering Handbook by Robert Ratay, McGraw Hill LLC.
4- Structural Condition Assessment by Robert T. Ratay.
5- Structural Repair of Traditional Buildings by PEB. Robson, Taylor and Francis.
6- Structural Renovation of Buildings: Methods, Details, & Design Examples by Alexander Newman. (McGraw-Hill Professional Engineering).
7- Canadian Foundation manual 2006, 2023.
Do you think is there any other considerations or references that will be beneficial for the previous assessment or another point of view you will like to be addressed?
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