Northwest Doors purchased two adjoining buildings within the same commercial building complex that did not have direct access to one another. The buildings were divided by existing precasted tilt-up panels. To gain access between buildings, two 20-ft. by 21-ft. openings were formed. By creating these openings, panel to slab steel connections were lost, causing a deficiency in in-plane sliding shear capacity. The Tyfo® system was designed by Fyfe and approved by the engineer of record, Krahn Engineering Ltd., to strengthen the sliding shear capacity. In this instance, Tyfo® BC, a bi-directional glass fiber system (+/- 45° fiber orientation), was the most suitable material to address the situation.
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