The San Ysidro Point of Entry (POE) is the main border crossing between Mexico and the United States near San Diego, CA. The project consists of the final expansion of the primary and secondary canopies over the northbound and southbound routes through the POE. The Northbound Primary Canopy, designed by MKA Engineers, is a cantilevered, structural steel and cable structure supporting the approximately 20m wide x 45m long canopy section. There are a total of 19 cables connected to the roof. There are 13 cables from the top from which the structure hangs, and 6 cables beneath the structural steel frame working as hold-downs.
The EOR provided an erection sequence and the associated cable forces and displacements for the construction team to use to develop engineered erection plans, including a staged stressing sequence for the cables. Innova worked with the specialty fabricators and the erector to provide the following services:
1. Staged erection sequence to produce the cable forces.
2. Shoring and rigging specification, review, and in some cases, design.
3. On-site QA during the stressing sequence (not provided yet).
4. Peer Review of Pfeifer components.