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HomeMy WebLinkAboutMEMORANDUM - 21-00709 - Clair & Dees Point S Tires - Remodel Southfork Design Group LLC, 127 E Main Street Suite 111, Rexburg, ID 83440, 208-852-6236 South Fork Design Rexburg, ID Memorandum DATE: 07/30/2021 TO: Guy Robertson FROM: Jeff, under supervision of Ray McDougal, P.E. SUBJECT: Truss Repairs MEMO: At your request, we performed a site inspection at 117 N 2nd E, Rexburg, Idaho. The inspection was limited to existing trusses that have failed and are being temporarily supported. The inspection was also limited to a visual inspection only. The owner has also requested the installation of three new overhead doors. Findings: The building is a CMU commercial warehouse with wood bow trusses. An addition was constructed, also of CMU with bow trusses. The old trusses had a spliced bottom chord that was connected with a bolted metal strap, where the failure occurred. The undamaged bow trusses have been deemed adequate for the loads to be applied. There is no need to resize or strengthen the bow trusses currently. The bow trusses appear to be in good shape, no significant damage was noted during my inspection. Conclusion. The two older trusses need repair of the bottom chord. Replace the bottom chord with:  5-1/8”x10-1/2” 24F-V4 GLB Contractor responsible for temporary shoring of roof and truss. There shall be a 3/8” gusset plate, 10” high, extending minimum 12” across each member or better with (6) 5/8” bolts at each web to connect to the bottom chord. For new overhead door cutouts, install steel header. Use one of the following:  W12x16  W10x19  W8x21 Assure that door cutouts are not below trusses. Support each end of header with HSS2x4x1/4” steel trimmer. Trimmers to have 4x6x1/4” base plate anchor with (2) 5/8”x4” Titan HD anchors. Southfork Design Group LLC, 127 E Main Street Suite 111, Rexburg, ID 83440, 208-852-6236 South Fork Design Rexburg, ID If you have any questions, please contact me at 208-852-6236. Respectfully, Jeff Castillo, E.I. Approved by Ray McDougal, P.E Reviewed By: B.A, R.M, P.E. SOUTH FORK DESIGN Photos Attached of Site Visit Southfork Design Group LLC, 127 E Main Street Suite 111, Rexburg, ID 83440, 208-852-6236 South Fork Design Rexburg, ID Southfork Design Group LLC, 127 E Main Street Suite 111, Rexburg, ID 83440, 208-852-6236 South Fork Design Rexburg, ID Southfork Design Group LLC, 127 E Main Street Suite 111, Rexburg, ID 83440, 208-852-6236 South Fork Design Rexburg, ID Southfork Design Group LLC, 127 E Main Street Suite 111, Rexburg, ID 83440, 208-852-6236 South Fork Design Rexburg, ID Southfork Design Group LLC, 127 E Main Street Suite 111, Rexburg, ID 83440, 208-852-6236 South Fork Design Rexburg, ID