

Our 2021-2022 Bridge
Design Summary
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Key design constraint was the disallowance of components above the bridge deck
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Double undertruss was used to maximize usage of the design envelope, while still fitting member size constraints
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Moment frames and lateral bracing were used to increase lateral stiffness and to prevent the trusses from buckling
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Members were fabricated from square and rectangular HSS
Fabrication and Acceleration Bridge Construction
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Fabrication was completed by the University of Waterloo Engineering Machine Shop
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Bridge components were fabricated using jigs to avoid problems with tolerances
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Only two types of connections (angle irons and plates) were used throughout the entire structure to ensure consistency
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Members were labelled for faster construction
Current Construction Sequence
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The north legs are placed and the upper undertruss is built simultaneously on both sides and connected over the highway.
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The lower undertruss is built underneath.
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The west moment frame is connected to the north span, and then the south span is constructed in a similar fashion as the north.
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The east moment frame is installed to complete the backspan.
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The cantilever end on the east side and the lateral members are installed last.






