Massachusetts Institute of Technology, Rockwell Athletic Cage Building (W33)

Cambridge, MA


Massachusetts Institute of Technology



The W33 Cage Building is a 28,000 sq ft athletic facility with a roof structure that comprises arched-chord lattice trusses with 100 ft spans. MIT wanted to restore the wood trusses, which have been in service for more than fifty years. SGH investigated the roof structure and observed several trusses with local failures, primarily including tension fractures of bottom chord members. We developed a rehabilitation program for the trusses with consideration of existing repairs along the bottom chord of several trusses that proved to be a challenging obstacle for remedial strengthening.