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The Kalamazoo Radisson Parking Structure is an eight-story parking garage constructed in the 1970s. The structure was expanded in the late 1970s to its full height and added an Annex from Levels 3-8. The three-bay structures consist of a slab-on-grade level and seven supported levels of cast-in-place, monostrand, and button-headed post-tensioned concrete slabs supported by cast-in-place, post-tensioned beams, and columns. The Annex portion of the structure consists of precast concrete double-tees supported by precast concrete beams and columns. The functional layout of the structure forms a double-threaded helix with central crossovers at every level.
The structure went several years without structural maintenance repairs. In 2019, WGI surveyed the structure, recommending concrete and waterproofing repairs and some electrical updates. The first phase of these repairs was completed in 2021, focusing on Levels 6-8 and the southern two stair towers. The post-tension anchorages at the central pour strip of Level 6 controlled the majority of the costs of the project with several needing to be replaced and multiple splice repairs being required along the lengths of the tendons.
Project Highlights
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