The Safari Load Platform at Six Flags - New Jersey is an open structure, which is beautiful, but creates some engineering challenges. Without a structural plywood skin, as most buildings have, all the lateral forces (forces caused by wind) must travel through the beams and be concentrated in the joints. Sometimes the forces are just too big, and must be resolved with hidden steel joinery.
The photo to the left shows a concealed tension tie using 4" shear plates, 3/4x6" lags, a steel plate welded to a 1" diameter rod, and a 4"x4" steel plate washer. The system will resolve 9,000 pounds of tension.
An isometric view of of the Safari Load Platform at Six Flags, New Jersey. The building will be used as a staging area for visitors as they wait to get on the Wild Safari Tour.
Post and Beam Elevation One.
Post and Beam Elevation Two.