Laserfiche WebLink
O <br />GENERAL REQUIREMENTS <br />BUILDING CODE & REFERENCE STANDARDS: The "International Building Code" (IBC), 2018 Edition, as adopted and modified by the City of Everett, <br />Washington, governs the design and construction of this project. Reference to a specific section in the Code does not relieve the contractor from <br />compliance with the entire materials reference standards noted below. The latest edition of the materials reference standards shall be used. <br />SCOPE OF STRUCTURAL WORK: Provide structural design of existing office building interior redesign. Provide load path for altered roof loads through <br />building to new foundation footings. <br />DEFINITIONS: The following definitions apply to these general notes: <br />® "Structural Engineer of Record" (EOR) - The Structural Engineer who is legally responsible for stamping & signing the structural documents <br />for the project. The FOR is responsible for the design of the Primary Structural System. <br />® "Specialty Structural Engineer" (SSE) - A licensed professional Engineer, not the EOR, who performs specialty structural engineering <br />services necessary to complete the structure, who has experience and training in the specific specialty. The General Contractor, <br />subcontractor, or supplier who is responsible for the design, fabrication and installation of specialty -engineered elements shall retain the <br />SSE. Submittals shall be stamped and signed by the SSE. Documents stamped and signed by the SSE shall be completed by or under the <br />direct supervision of the SSE with a PE or SE license issued by the State of Washington. <br />® "Deferred Submittals - Deferred Submittal is engineering work to be designed -by -others or bidder -designed. <br />NOTE PRIORITIES: Notes on the individual drawings shall govern over these general notes. <br />SPECIFICATIONS: Refer to these notes, structural drawings, and architectural drawings which serve as specifications for this project. <br />STRUCTURAL DETAILS: The structural drawings are intended to show the general character and extent of the project and are not intended to show all <br />details of the work. <br />ARCHITECTURAL DRAWINGS: Refer to the Architectural drawings for information including, but not limited to: dimensions, elevations, slopes, <br />non -bearing walls, stairs, railings, waterproofing, finishes and other nonstructural items. <br />STRUCTURAL RESPONSIBILITIES: The FOR is responsible for the strength and stability of the Primary Structure in its completed state. <br />CONTRACTOR RESPONSIBILITIES: The contractor is responsible for the means and methods of construction and all job -related safety standards such <br />as OSHA and WISHA. The contractor is responsible for the strength and stability of the structure during construction and shall provide temporary <br />shoring, bracing and other elements required to maintain stability until the structure is completed. It is the contractor's responsibility to be familiar with the <br />work required in the construction documents and the requirements for executing it properly. <br />DISCREPANCIES: In case of discrepancies between these general notes, the contract drawings, and specifications, and/or reference standards, the <br />FOR shall determine which shall govern. Discrepancies shall be brought to the attention of the FOR before proceeding with the work. Accordingly, any <br />conflict in or between the Contract Documents shall not be a basis for adjustment in the Contract Price. <br />SITE VERIFICATION: The contractor shall verify all dimensions and conditions at the site prior to fabrication and/or construction. Conflicts between the <br />drawings and actual site conditions shall be brought to the attention of the FOR before proceeding with the work. All underground utilities shall be <br />determined by the Contractor prior to excavation. <br />ADJACENT UTILITIES: The contractor shall determine the locations of all adjacent underground utilities prior to excavation. Any utility information <br />shown on the drawings and details is approximate and not necessarily complete. <br />DESIGN CRITERIA <br />CONSTRUCTION LOADS: Loads on the structure during construction shall not exceed the design loads or the capacity of the partially completed <br />construction. <br />DEAD LOAD: <br />Wood Floor = 15 psf <br />Wood Roof = 15 psf <br />SNOW LOAD: The roof snow load is determined by using Chapter 7 of ASCE 7-16 in accordance with IBC Section 1608 and City of Everett Municipal <br />Code 16.01.010 with the following factors: <br />Ground Snow Load, Pg = 15 psf <br />Flat Roof Snow Load, Pf = 25 psf <br />Snow Exposure Factor, Ce = 0.9 <br />Importance Factor, Is =1.0 <br />Thermal Factor, Ct = 1.0 <br />Slope Factor, Cs = 1.0 <br />WIND LOAD: <br />Interior Partition Load = 5 psf <br />DEFLECTIONS: <br />Floor Total Load Deflection Limit: L/360 <br />Floor Live load Deflection Limit: L/480 <br />Roof Total Load Deflection Limit: L/240 <br />Roof Live load Deflection Limit: L/360 <br />LIVE LOADS: <br />Roof (Live) 20 PSF <br />Roof (Snow) 25 PSF <br />Offices 50 PSF <br />Lobby 100 PSF <br />Handrail/Guardrail 50 PLF OR 200# (TOP RAIL) <br />Component reactions need not be combined with top rail loadings. <br />SUBMITTALS <br />ALTERNATES: Product or manufacturer components specified in these drawings are used as the basis of design for this project. Alternates for specified <br />items may be submitted to the FOR for review. However, contractor shall submit a current ICC-ESR/IAPMO-ER report identifying that an alternative <br />component has the same or greater load capacity than the specified item. <br />DEFERRED SUBMITTALS: Per IBC Section 107.3.4.1, drawings, calculations, and product data for the design and fabrication of items that are <br />designed -by -others shall bear the seal and signature of the Washington State Registered Professional Engineer (SSE) who is responsible for the design <br />and shall be submitted to the Architect/EOR and the building department for review prior to fabrication. Allow one week for FOR review time. <br />The SSE shall submit stamped and signed calculations and shop drawings to the FOR for review. Review of the SSE's shop drawings is for general <br />compliance with design criteria and compatibility with the design of the primary structure and does not relieve the SSE of responsibility for that design. All <br />necessary bracing, ties, anchorage, and proprietary products shall be furnished and installed per manufacturer's instructions or the SSE's design <br />drawings and calculations. The design of the connection to the primary structure is the responsibility of the supplier and SSE. Submitted calculations are <br />for cursory review only and will generally not be returned. Deferred submittals include but are not limited to the following: <br />Handrails & Guardrails <br />TESTS & INSPECTIONS <br />INSPECTIONS: All construction is subject to inspection by the Building Official in accordance with IBC Sec 110. The contractor shall coordinate all <br />required inspections with the Building Official. Submit copies of all inspection reports to the Architect/EOR for review. The Building Official may accept <br />inspection of and reports by approved inspection agencies in lieu of Building Official's inspections. The contractor shall obtain approval of Building <br />Official to use the third -party inspection agency and contractor shall alert the Architect/EOR as such. <br />SPECIAL INSPECTIONS: In addition to the inspections required by IBC Sec 110, a Special Inspector shall be hired by the Owner as an independent <br />third -party inspector to perform the special inspections per IBC Ch. 17. Special inspections shall be performed by an approved testing agency as outlined <br />in the Special Inspection Schedule, the contract documents, and/or the project specification. Special Inspections shall meet the requirements outlines in <br />the specific materials sections of IBC Sec 1705. The contractor is responsible for scheduling the inspections, per the city/Building Official requirements. <br />Special Cases <br />Continuous inspection of post -installed anchors during installation of anchors and reinforcing bars installed in horizontal or upwardly inclined <br />orientations to resist sustained tension loads. <br />Periodic inspection of post -installed anchors during installation of anchors and reinforcing bars installed in vertical orientation. <br />STRUCTURAL OBSERVATIONS: When required by the provisions of Section 1704.6.1, 1704.6.2, or 1704.6.3, the Owner or the Owner's authorized <br />agent shall employ the FOR to perform structural observations. Structural observations do not include or waive the responsibility for the inspections in <br />IBC Section 110 or the special inspections in Section 1705 or other sections in the code. <br />The following structural observations are required to be completed by the FOR during construction. The FOR is to be notified when elements listed <br />below are substantially complete and ready for observation. Contact the FOR a minimum of (2) business days prior to covering the work. <br />® Reinforced Concrete Foundations <br />® Substantial completion of Roof & Floor Framing <br />SOILS AND FOUNDATIONS <br />REFERENCE STANDARDS: Conform to IBC Chapter 18 "Soils and Foundations." <br />GEOTECHNICAL INSPECTION: Site soil conditions, fill placement, and load -bearing requirements shall be as required by IBC Section 1705.6 and <br />Table 1705.6. Assumed values shall be field verified by the Building Official prior to placing concrete. The Building Official shall be permitted to waive the <br />requirement for a geotechnical investigation where satisfactory data from adjacent area is available that demonstrates an investigation is not necessary <br />for any of the conditions in IBC Sections 1803.5.1 - 1803.5.6 and IBC Sections 1803.5.10-1803.5.11. <br />DESIGN SOIL VALUES: (Assumed) <br />Allowable Soil Bearing Pressure <br />1500 PSF DL + LL <br />SLABS -ON -GRADE & FOUNDATIONS: All slabs -on -grade and foundations shall bear on structural compacted fill or competent native soil per the <br />Geotechnical report or as noted in these documents. Exterior perimeter footings shall bear not less than 18 inches below finish grade, or as required by <br />the Geotechnical Engineer and the Building Official. Interior footings shall bear not less than 12 inches below finish floor. <br />CAST -IN -PLACE CONCRETE <br />REFERENCE STANDARDS: Conforms to the latest editions of the following: <br />(1) ACI 318 "Building Code Requirements for Structural Concrete and Commentary". <br />(2) IBC Chapter 19. <br />FIELD REFERENCE: The contractor shall keep a copy of ACI Field Reference manual, SP-15, "Standard Specifications for Structural Concrete (ACI <br />301) with Selected ACI and ASTM References." <br />CONCRETE MIXTURES: Conform to ACI 318 Chapter 19 "Concrete: Design and Durability Requirements." <br />MATERIALS: Conform to ACI 318 Chapters 19 & 20. <br />SUBMITTALS: Provide all submittals required by ACI 301 Sec 4.1.2. Submit mix designs for each mix in the table below. <br />TABLE OF MIX DESIGN REQUIREMENTS <br />Member Strength Test Age Maximum Exposure Max Minimum <br />Type/Location Apsi) (days) Aggregate Classification W/C Ratio Air Content <br />Footings 3000 28 1" F2, C1 0.45 4.5% <br />MIX DESIGN NOTES: <br />(1) W/C Ratio: Water-cementitious material ratios shall be based on the total weight of cementitious materials. Ratios not shown in the table above are <br />controlled by strength requirements. <br />(2) Cementitious Content: The use of fly ash, other pozzolans, silica fume, or slag shall conform to ACI 301 Sec 4.2.1 "Materials". Maximum amount of <br />fly ash shall be 20% of total cementitious content unless reviewed and approved otherwise by EOR. . <br />(3) Air Content: Conform to ACI 301 Sec 4.2.2.4. Horizontal exterior surfaces in contact with the soil require entrained air. Use Exposure Category FO, <br />SO, WO, and CO unless noted otherwise. Tolerance is +/-1.5%. Air content shall be measured at point of placement. <br />(4) Exposure Classification: The mix design provided shall meet the requirements of ACI 318 Chapter 19, based on the exposure classification <br />indicated in the table above. <br />(5) Slump: Unless otherwise specified or permitted, concrete shall have at the point of delivery, a slump of 4" +/- 1 ". For additional criteria, reference <br />ACI 301 Sec 4.2.2.2. <br />FORMWORK: Conform to ACI 301 Sec 2 "Formwork and Form Accessories." Removal of Forms shall conform to Sec 2.3.2 except strength indicated in <br />Sec 2.3.2.5 shall be 0.75 f'c, <br />MEASURING, MIXING, AND DELIVERY: Conform to ACI 301 Sec 4.3. <br />HANDLING, PLACING, CONSTRUCTING, AND CURING: Conform to ACI 301 Sec 5. <br />EMBEDDED ITEMS: Position and secure in place expansion joint material, anchors and other structural and non-structural embedded items before <br />placing concrete. Contractor shall refer to mechanical, electrical, plumbing, and architectural drawings and coordinate all other embedded items. <br />CONCRETE REINFORCEMENT <br />REFERENCE STANDARDS: Conform to: <br />(1) ACI 301 "Standard Specifications for Structural Concrete, Sec 3 "Reinforcement, and Reinforcement Supports." <br />(2) IBC Chapter 19, Concrete. <br />(3) ACI 318 and ACI 318R. <br />(4) ACI SP-66 "ACI Detailing Manual" including ACI 315 "Details and Detailing of Concrete Reinforcement." <br />(5) CRSI MSP-2 "Manual of Standard Practice." <br />SUBMITTALS: Conform to ACI 301 Sec 3.1.1 "Submittals, data, and drawings." Submit placing drawings showing fabrication dimensions and locations <br />for placement of reinforcement and reinforcement supports. <br />MATERIALS: <br />Reinforcing Bars ASTM A615, Grade 60, deformed bars. <br />FABRICATION: Conform to ACI 301, Sec 3.2.2 "Fabrication," and ACI SP-66 "ACI Detailing Manual." <br />PLACING: Conform to ACI 301, Sec 3.3.2 "Placement." Placing tolerances shall conform to Sec 3.3.2.1 "Tolerances." <br />CONCRETE COVER: Conform to the following cover requirements from ACI 301, Table 3.3.2.3. <br />Concrete cast against earth 3" <br />REFERENCE STANDARDS: Conform to: <br />(1) AISI "Specification for the Design of Cold -Formed Steel Structural Members." <br />(2) IBC Section 2210 and 2211. <br />MATERIALS: <br />Studs and Track -18 gage and lighter ASTM A653 Grade A or ASTM Al011 Grade 33, Min FY=33 KSI <br />Sheet Metal Screws Grabber Wafer Self -Drilling, #8xl/2 <br />Fastenings not shown As recommended by the manufacturer. <br />SIZE AND PROFILE: Cold -formed steel framing members shall be as specified in the Steel Stud Manufacturer's Association ICC ESR-3064P and of the <br />size and profile as shown on the drawings. Alternate members' equivalent in shape, size, stiffness, and strength by manufacturers not current members <br />of the Steel Stud Manufacturer's Association shall be subject to review and approval by the EOR. <br />INTERIOR WALL STUDS DESIGN CRITERIA: The lateral force and deflection limits on interior partition walls shall be per Chapter 16 of the IBC. The <br />lateral load deflection criteria shall be L/240 for plaster and drywall finishes. The studs shall be attached to the new structure so as to not interfere with <br />other trades of the project. <br />CONNECTORS: Connectors shall be installed per the manufacturer's instructions. Where connector straps connect two members, center the <br />connector between the two members, and place one half of the screws or bolts in each member. UNO, all screws all be #8 x 1.25" Hex Washer Head. <br />WOOD FRAMING <br />REFERENCE STANDARDS: Conform to: <br />(1) IBC 23 "WOOD." <br />(2) NDS and NDS Supplement - "National Design Specification for Wood Construction." <br />(3) ANSI/TPI 1 "National Design Standard for Metal -Plate -Connected Wood Truss Construction." <br />(4) BCSI 2013 "Building Component Safety Information." <br />ALTERNATES: Alternates for specified item may be submitted to the FOR for review. Contractor shall submit a current ICC-ESR/IAPMO-ER report <br />identifying that an alternative component has the same or greater load capacity than the specified item, <br />IDENTIFICATION: All sawn lumber and pre -manufactured wood products shall be identified by the grade mark or a certificate of inspection issued by the <br />certifying agency. <br />MATERIALS: <br />Sawn Lumber: Conform to grading rules of WWPA, WCLIB, or NLGA. Fingerjointed studs acceptable at interior non-structural walls only. <br />Member Use Size Species Grade <br />Studs, Blocking 2x DF No. 2 <br />Glued Laminated Timber: Conform to AITC 117 "Standard Specifications for Structural Glued Laminated Timber of Softwood Species, Manufacturing <br />and Design" and ANSI/AITC Al90.1 "Structural Glued Laminated Timber." Glued laminated member beams shall not be cambered other than the stock <br />camber of 5000', unless shown otherwise on the plans or specifications. <br />Member Use Sizes Species Stress Class Uses <br />Beams All DF/DF 24F-V4 Simple Spans <br />Joist Hangers and Connectors: Simpson Strong -Tie Company Inc. as specified in their latest catalogs was used as the basis of design for this project. <br />Alternate connectors by other manufacturers may be substituted provided they have current ICC-ESR/IAPMO-ER approval for equivalent or greater load <br />capacities and are reviewed and approved by the FOR prior to ordering. Connectors shall be installed per the manufacturer's instructions. Where <br />connector straps connect two members, place 1 /2 of the nails or bolts in each member. Nail straps to wood framing as late as possible in the framing <br />process to allow the wood to shrink and the building to settle. <br />Nails and Staples: Conform to IBC Sec 2303.6 "Nails and Staples." Unless noted on plans, nail per IBC Table 2304,10.1. Unless noted otherwise all <br />nails shall be COMMON. Nail sizes specified on the drawings are based on the following specifications: <br />Size _ Length Diameter <br />8d 2-1/2" 0.131" <br />10d 3" 0.148" <br />16d 3-1/2" 0.162" <br />16d Sinker 3-1/4' 0.148" <br />Lag Bolts/Thru-Bolts: Conform to ASTM A307. Provide washers under the heads and nuts of all bolts and lag screws bearing on wood. <br />Wood Holdowns: Holdowns specified are as manufactured by Simpson Strong -Tie Company Inc. Additional framing members shall be provided per the <br />manufacturer's requirements. Acceptable equivalent product substitutions are available from other manufacturers with FOR approval. Do not countersink <br />holdown bolts. <br />Engineered Wood Products (EWP): The following materials are based on lumber manufactured by TrusJoist by Weyerhaeuser. Trus-Joist by <br />Weyerhaeuser was used as the basis of design for this project. Alternate products by other manufacturers may be substituted provided they have current <br />ICC-ESR/IAPMO-ER approval for equivalent or greater load and stiffness properties and are reviewed and approved by the EOR. <br />a) Parallel Strand Lumber (PSL): Conform to ICC-ES Report No. ESR-1387, CCMC Report No. 11161-R, or NES Report No. NER-481. Use <br />2.2E unless noted otherwise. <br />NAILING REQUIREMENTS: Provide minimum nailing in accordance with IBC Table 2304.10.1 "Fastening Schedule" except as noted on the drawings. <br />Nailing for roof/floor diaphragms/shear walls shall be per drawings. Nails shall be driven flush and shall not fracture the surface of sheathing. <br />STANDARD LIGHT -FRAME CONSTRUCTION: Unless noted on the drawings, construction shall conform to IBC Sec 2308 "Conventional Light -Frame <br />Construction" and IBC Sec 2304 "General Construction Requirements." <br />(1) Wall Framing (Unless noted otherwise on plans and details) All interior walls shall be 2x4 @ 16"OC and all exterior walls shall be 2x6 @ 16"OC. <br />Provide (2) bundled studs min at wall ends and each side of all openings. All solid sawn lumber beams and headers shall be supported by a <br />minimum of (1) trim and (1) king stud and all glulam or engineered wood beams and headers by (2) trim and (2) king studs. Provide minimum (2) <br />2x8 headers at all interior and exterior wall openings. Stitch -nail bundled studs with (2)10d @ 12"OC. Provide solid blocking thru floors to supports <br />below for bearing walls and posts. Attach bottom plates of stud walls to wood framing below with 16d @ 12"OC. Refer to shear wall schedule for <br />specific sheathing, stud, and nailing requirements at shear walls, Provide gypsum sheathing on interior surfaces and plywood sheathing on <br />exterior surfaces. <br />(2) Roof/Floor Framing: (Unless noted otherwise on plans and details) Provide double joists/rafters under all parallel bearing partitions and solid <br />blocking at all bearing points. Provide double joists around all roof/floor openings. Multi-joists/rafters shall be stitch -nailed together with (2)10d @ <br />12"OC. Provide roof sheathing edge clips centered between framing at unblocked plywood edges. All floor sheathing shall have tongue and groove <br />joints or be supported by solid blocking. Allow 1/8" spacing at all panel edges and ends of roof/floor sheathing. Roof/floor sheathing shall be laid <br />face grain perpendicular to framing members. <br />(3) Blocking: Unless noted otherwise on plans and details, all blocking shall be full -height 2x at solid sawn framing systems or roof truss. <br />MOISTURE CONTENT: Wood material used for this project shall have maximum moisture content of 19% except for the pressure -treated wood sill plate. <br />METAL CONNECTORS/PT WOOD: All metal hardware and fasteners in contact with pressure treated lumber shall be stainless steel Type 316L. At the <br />Owner's risk and discretion, hot -dipped galvanized metal hardware and fasteners may be investigated for use in lieu of stainless steel provided that the <br />finish has a minimum zinc content of at least 1.85 oz./SF and its use is coordinated by the Contractor and Wood Supplier for the expected environment <br />and moisture exposure for appropriate use based on the method of preservative treatment of the wood. <br />(E) SHTG TO RE <br />(E) 2x JC <br />WHERE OCC <br />LTP4 EA BLKG TO <br />BEAM, (2) LOCS <br />(E) DROP BEAM <br />POST & FTC <br />BELOW PER 11/S1 <br />SCALE:1" = 1'-0" <br />(E) POS1 <br />(E) SONOTUBE <br />FTG TO REMAIN <br />FTG & REINF PER PLAN. <br />BAR TO BE DRILLED & <br />EPDXY SET W/ SET XP <br />PER MFR INSTALLATION. <br />MO -at <br />�'F-T :I _z <br />SCALE: 1 " = 1'-0" <br />Q_ POST/FTC <br />�E POST/FTG <br />(E) RAFTERS PARALLEL <br />TO INT WALL —� <br />(E) RAFTER PEEP TO <br />INT WALL @ SIM <br />i <br />............... . <br />i <br />Q <br />CD <br />(E) FLR SHTG <br />(E) JOISTS PARALLEL <br />10 INT WALL <br />(E) JOISTS PERP TO <br />INT WALL @ SIM <br />a <br />SCALE: 1 = 1'-0" <br />AV VERIFY OR ADD A34 <br />CLIP EA RAFTER <br />T/(E) MAIN <br />FLR SHTG <br />(E) CEILING RAFTER <br />B/CEILING <br />2x8 BLKG BELOW RAFTERS <br />POST W/ (2) 8d <br />END NAILS & (2) <br />8d TOE NAILS, A3z <br />(2) LOOS RAFTER <br />SK-1 TOP <br />(2) AC4, (1) ES <br />(E) DROP BEAM <br />(3) OR (4) 2x4 <br />POST, MATCH BEAM <br />QTY ABOVE <br />ABU BASE W/ 5/g"00" <br />J—BOLT OR �/8"Ox8" <br />THEN HD <br />T/(E) FTG <br />T/(N) FTG <br />SK-1 BOTTOM <br />SCALE: 1 " = 1'-0" <br />(E) SONOTUBE <br />FTG & POST <br />TO REMAIN — <br />POST/ <br />FTG <br />CE <br />2x4 \T B\ @ 24"OC <br />2 10d Ca� EA: END <br />362T250--43 DEFLECTION TRACK W/ <br />350T150-30 TOP TRACK W/ <br />(2) #8 SMS TO EA STUD <br />(2) #8x1'/2" SCREWS TO EA BLKG <br />350S162-30 STUD @ 16"OC <br />GWB & FINISHES PER ARCH <br />BOTT TRACK W/ <br />TO EA STUD & <br />SCREWS TO EA BLKG <br />2) 10d @ EA END <br />zx4 FLAT BLKG @ 24"OC <br />SK-4 <br />(E) 2x WALL FRAMING <br />(E) BEAM <br />(WHERE OCCURS) <br />2x8 BLKG BTWN RAFTER <br />W/ (2) 8d END NAILS <br />& (2) TOE NAILS <br />�— SAWCUT (E) RAFTERS <br />TO FACE OF BEAM <br />SEAM PER PLAN <br />2) LPC42, (1) ES <br />BUNDLED STUD <br />POST PER PLAN <br />SK-3 <br />FT & REBAR PER PLAN. (N) <br />dC TO BE PLACED AROUND <br />FTG AS SHOWN IF REO'D <br />�T PER 11/S1 <br />I i /�5 11 K �"'� �, ,� <br />NOTE: IF PLACEMENT OF (N) CA, e "`01' V E R ET <br />FTG DOES NOT OVERLAP (E) REVIEWED O PERMIT <br />FTG, PLACE FTG PER PLAN <br />AS STANDARD SQUARE FTG <br />PLMN VIEW <br />NEW <br />I ��EXISTING SONC"'T"BE FOOTING <br />SCALE:1" = 1'-0" <br />SK-2 <br />