Arch Engineers Ltd. provided critical design and engineering support for the Qualicum Beach Golf Club Pedestrian Bridge, a 2x12m long, 1.8m wide structure constructed to CSA S7-23 code standards. Designed with a composite precast concrete deck and steel girders, this pedestrian bridge required a nuanced approach to meet the client’s request for straight girder geometry, which, while easing fabrication, introduced complexities in the construction and launch phases.
Straight girders offer certain advantages in fabrication, allowing for streamlined production processes and simplified shop assembly, which saved time and reduced costs. However, this simplicity in fabrication created challenges during the launch and installation of the bridge. Straight girders, lacking the natural curve often used to offset forces during launch, demanded a carefully orchestrated launch methodology to ensure that the bridge maintained structural integrity and alignment as it was moved into place. Arch developed a launch strategy that addressed these unique structural dynamics, allowing for the safe and precise positioning of the bridge without compromising stability.
In addition to the structural challenges, the bridge’s design included custom railings that required highly accurate measurements to ensure proper alignment and secure connections. Arch Engineers maintained close communication with the fabrication shop, providing detailed instructions and clarifications on railing connections. These specifications were essential to achieving precise placement and securing the railing components on the straight girders, which had no allowance for error due to the fixed geometry.