Resources
Guides, technical resources and company updates
Use selection guides, technical resources and company updates by resource type and business topic. project cases remain in the dedicated case center.
Preventing Underground Garage Roof Collapses: The Post-Tensioned Wide Beam and Slab Solution
This article examines the risks associated with underground garage roof slabs, particularly flat plate systems, and presents the post-tensioned wide beam and slab solution (Taidi) as a safer and more economical alternative. It outlines key considerations for project owners and designers during the conceptual phase.
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Flat slabs are widely used in standard underground garages, but for roof slabs with soil cover, the additional loads from soil weight, fire truck loading, and landscape surcharge significantly increase punching shear at column heads, raising the risk of sudden failure. This article explains the structural limitations of flat slabs in such scenarios and introduces the Taidi prestressed wide-shallow beam system, which eliminates punching shear risk while saving approximately 500 mm in floor height.
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