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PROJECT:Harmon St ADUs PROJECT NO.:A025.033 SUBJECT:CRITERIA <br />Design Criteria: <br />General: <br />Code: Structural design is based upon the California Building Code, 2022 Edition (2021 IBC) <br />Risk Category: II <br />Wind Criteria:ASCE7-16 <br />Analysis Procedure: ASCE 7-16, Chapter 28 - Envelope Procedure - Part 2 <br />Basic Wind Speed - Ultimate (mph): 95 (3-sec gust) <br />Wind Exposure: C <br />Seismic Criteria: <br />Analysis Procedure: ASCE 7-16, Equivalent Lateral Force Procedure <br />Site Class: D <br />Seismic Importance Factor, IE:1.0 <br />Mapped Spectral Response Accelerations: <br />SS =1.328 S1 =0.475 <br />SDS =0.885 SD1 =0.578 <br />Seismic Design Category: D <br />Seismic Force Resisting System: Wood Shearwalls <br />Seismic Response Coefficient, Cs:0.136 <br />Seismic Base Shear, V (k): 5.1 <br />Live Loads: <br />Roof Live Load (psf): 20 <br />Floor Live Load (psf): 40 <br />General Notes: <br />• <br />• <br />• <br />• <br />• <br />Wood Construction: <br />•All dimensional lumber shall be Douglas Fir Larch #2 or equal <br />•All wood timbers shall be Douglas Fir Larch #1 5X & Larger Or Equal <br />• <br />Foundation / Concrete: <br />• <br />•Foundation concrete shall have a minimum compressive strength of 4500 psi at 28 days. <br />•Cement for all concrete shall be Type V with a minimum of 6% entrained air. Maximum aggregate size shall be 3/4". <br />•Reinforcing steel shall be per ASTM A615 Gr. 60, U.N.O. <br />• <br />Foundation design is based upon presumptive soil capacities. It is strongly recommended that an independent soils testing be <br />performed by a licensed geotechnical engineer to verify soil capacites, slope stability, and any other related soil parameters. <br />The contractor shall verify dimensions, conditions and elevations before starting work. The engineer shall be notified immediately if <br />any discrepancies are found. <br />The typical notes and details shall apply in all cases unless specifically detailed elsewhere. Where no detail is shown, the construction <br />shall be as shown for other similar work and as required by the building code. <br />These calculations are limited to the structural members shown in these calculations only. The connection of the members shown in <br />these calculations to any existing structure shall be by others. <br />The contractor shall be responsible for compliance with local construction safety orders. Approval of shop drawings by the architect or <br />structural engineer shall not be construed as accepting this responsibility. <br />All structural framing members shall be adequately shored and braced during erection and until full lateral and vertical support is <br />provided by adjoining members. <br />All concrete mixing, placement, forming, and reinforcing installation shall be performed in accordance with the requirements of <br />“Building Code Requirements for Reinforced Concrete”, ACI 318, latest applicable edition. <br />Wood construction code checks are per the National Design Specification for Wood Construction (NDS) and Standard for Design of <br />Timber Frame Structures (TFEC 1) <br />Page 3AllX ENG <br />DESIGN & ENGINEERING <br />AllX ENG <br />DESIGN & ENGINEERING