200 W MARINE VIEW DR BAYWOOD 2025-09-16

2. The Roof Framing Plan on Sheet S2.1 appears to indicate unspecified wide -flange drag struts at multiple locations, including but not limited to Grids L, 2, and 7. The required framing should be specified. See IBC Sections 107.2.1 and 1603. L Response: Wide -flange drag strut sizes have been added to the Roof Plan on Sheet S2.1 3. Detail P/S5.0 appears to indicate that the roof trusses provide the out -of -plane support for the concrete walls and references Sheet S3.1. The required loading on this sheet should be clarified. See IBC Sections 107.2.1 and 1603.1.8. Response: The top chord tie force (axial load for out -of -plane support of the concrete wall) load diagram has been provided on Sheet SM 4. The Roof Framing Plan on Sheet S2.1 appears to specify out -of -plane support for the concrete walls per Detail A/S5.0 at multiple locations, including but not limited to Grids 1, 1.5, 7.5, 8, M, M.5, and P. Detail A appears to rely on a connection that will induce cross -grain bending in the ledger, which is not permitted per IBC Section 1613.1 and ASCE 7-10 Section 12.11.2.2.3. The connection should be revised. Calculations substantiating the connection should be submitted for review. See IBC Section 1604.1. Response: Section A-5.1 has been added to Sheet S5.1 to support the concrete walls for out -of -plane loading. Calculations can be found on Page R-56 of the calculation package. 5. The diaphragms should be provided with continuous cross -ties across the building diaphragm per IBC Section 1613.5.1. The typical connection shown in Detail E/S5.0 for the abutting trusses does not appear to include a connection. The design should be revised. The spacing of the cross -ties should be specified. Response: Each bar joist serves as a continuous cross -tie across the building. The weld of the bar joist seat to the joist girder top chord (Section E-5.0) provides continuity of load transfer. There is a note on this section for the joist manufacturer to account for this loading condition. 6. Continuing with the previous comment, the cross -ties are required to develop the cumulative shear loading from the subdiaphragms at the building perimeter and distribute it into the roof diaphragm. Axial loads for the trusses designated as part of the cross -ties should be specified. Alternatively, all trusses supporting the exterior walls should be interconnected for a minimum diaphragm ratio of 2.5:1. See IBC Sections 1603.1.8 and 1613.5.1. Response: The top chord tie force load diagram has been provided on Sheet SM which also includes cross -tie loads created by subdiaphragms. If you have any questions please don't hesitate to call us, we would be happy to clear them up. Regards, C on T ompson Project Engineer