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HomeMy WebLinkAboutMemo from Structural Engineer 10.16.2018ALBRIGHT &ASSOCIATES Memorandum To : Dave Herrala From : Michael Petaisto, PE MP Date : October 16, 2018. Re : Herrala Residence It was brought to our attention that a few items of structural concern had come up on the Herrala Residence. The three items are: 1) The blocking shown in detail 6 on sheet S3.1 was not installed with a hanger at the concrete wall as shown. The use of a hanger at this location is one method of supporting the blocking, but any method that secures the blocking in place (i.e. toenailing or bearing) is an acceptable alternate. 2) The three southernmost timber columns that support the deck and roof framing have post bases that slightly overhanging the 12"0 concrete pier that supports them. After reviewing the amount of overhang of the post bases, the owner needs to pack grout under the 1" standoff to ensure the three timbers have sufficient bearing support. 3) One lower floor joist in the mechanical room had the top and bottom flanges notched for a mechanical duct. The floor framing at this joist needs to be revised per clarification C2. 17067 M1 Albright & Associates, INC - 970.927.4363 off1Ce - 970.927.3039 fax - 402 Park Ave., Unit A - Basalt, CO 81621 - www.albright-associates.com PACK JOIST WEBS FOR 8" MIN. W/ 4 LAYERS OF 1/2" PLYWOOD W/ 4- 8d NAILS CLINCHED (TYP. @ 2) LUS44 HANGER 2- 3 1/2" LVL HEADOUT BEAM r A34 CLIP 2- 3 1/2" LVL HEADOUT BEAM DAMAGED JOIST (V.I.F.) LUS44 HANGER ---===== / 2'-0"± / //f =-pZ__�i ====� L� - �ZZ_- PACK JOIST WEBS FOR 8" MIN. W/ 4 LAYERS OF 1/2" PLYWOOD W/ 4- 8d NAILS CLINCHED (TYP. @ 2) IN- PLACE MECH. DUCT 0 PLAN VIEW 2x4 WEB STIFFENER 2x4 WEB STIFFENER EA. SIDE W/ 4- 16d NAILS EA. SIDE W/ 4- 16d NAILS T. PLY SEE PLAN 2- 3 1/2" LVL HEADOUT BEAM DUCT @ DAMAGED JOIST (V.I.F.) A34 CLIP IN- PLACE JOIST W/ LUS44 HANGER CUT & REMOVE BOTTOM OF IN- PLACE DAMAGED JOIST TO ALLOW HEADOUT BEAMS TO RUN CONTIN. 2- 3 1/2" LVL HEADOUT BEAM IN- PLACE JOIST W/ LUS44 HANGER SECTION @ MECH. DUCT NOTCHED JOIST REPAIR @ 3/4" = 11,0II 17067 ALBRIGHT & ASSOCIATES 970.927.4363 office • 970.927.3039 fax 402 Park Ave., Unit A A. Basalt, CO 81621 ISSUED: 10/16/18 DRAWN BY: MUP CLARIFICATION HERRALA RESIDENCE GARFIELD COUNTY, CO REF. S3.2 JOB #17067 SHEET: C2.2 OF: 2