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HomeMy WebLinkAbout2GENERAL CONSTRUCTION NOTES AND SPECIFICATIONS PRE-ENGINEERED WOOD TRUSSES General Construction Notes 1. The General Contractor shall review all project documents, prior to fabrication and start of construction, and report any discrepancies to the Architect prior to proceeding with the work and be responsible for errors made by anyone. 2. The General Contractor shall provide all measures necessary to protect the structure and workers during construction, including adequate bracing of structural members, walls and other non-structural elements to withstand construction loads including wind. 3. The General Contractor shall protect all existing facilities, structures and utility lines from damage during construction. 4. No structural member shall be cut, notched or otherwise reduced in size or strength without prior approval in writing from the Architect. 5. All details and sections on the Drawings are intended to be typical and shall be construed to apply to any similar situation elsewhere on the project except where a separate detail is shown. 6. The intention of the Plans and Specifications is to provide all necessary details to construct a complete structure. When specific information is missing or is in conflict, the General Contractor shall use a similar detail and/or the more costly item of conflict. The conflicts shall be brought to the attention of the Architect in writing. Shallow Foundations 1. Soil shall be stripped, compacted and tested in accordance with the recommendations of ASTM D-1557. Contractor shall verify adequate soil conditions before commencing work (2,500 PSF minimum bering capacity required) 2. Center all fottings under their respective columns or walls, unless otherwise shown on plans. Maximum misplacement or eccentricity shall be 2". Tolerance for miss location of column dowels or anchor bolts to be per ACI or AISC standards. 3. Horizontal Joints in footings shall not be permitted 4. Where vertical construction joints occur in continuous footings, provide a minimum continuous 2" by 4" keyway across joint. 5. The General Contractor shall notify the Architect if soil conditions are uncovered that prevent the required soil bearing pressure from being obtained. 6. Coordinate plumbing lines with the footing locations to avoid interference. Individual footings shall be lowered and wall footing stepped (with the prior written approval of the Architect) to avoid such interference. 7. Excavating under or near in -place footings or foundations which disturbs the compacted soil beneath shall not be permitted. REINFORCED CONCRETE 1. All concrete design and placement shall be in strict accordance with the ACI "Building Code Requirements for Reinforced Concrete", ACI 318 latest edition. 2. Structural concrete shall conform to ACI 301 specifications and develop a minimum compressive strength of 3,500 psi (ICF walls) at 28 days. 3. Use regular weight concrete for all structural members, minimum of 140 pcf. 4. Aggregates shall be clean and well graded and sized as follows. Concrete mixes shall be designed for the following slumps: Location Slump Aggregate Size Pumped Structural Concrete 5" 1" - ASTM #57 Masonry Fill 8" 1" - ASTM #89 Pearock 5. Consolidate all concrete with a vibrator. The use of jitterbugs to consolidate concrete shall not be permitted. 6. All pumped concrete shall contain a high range water reducing agent (HRWR). Minimum size of discharge shall be 4" for #57 and 2" for 489 aggregate. 7. Chamfer all exposed edges 3/a" unless noted otherwise on the Drawings. 8. All reinforcing steel shall be detailed, fabricated and installed in accordance with ACI 318 and ACI detailing Manual of Standard Practice, ACI 315, latest edition 9. Reinforcing steel shall be new deformed bars, free from rust, scale and oil conforming to ASTM A-615, Grade 40, with a minimum yield strength of 40,000 psi. 10. Welded wire fabric shall conform to ASTM A-185. 11. Concrete reinforcing fibers may be used in lieu of specified welded wire fabric where noted on drawings or in any slab to be covered with architectural finishes. Fibers shall be manufactured by Fiber mesh or Grace Products, no substitutes. 12. Lap continuous reinforced 48 bar diameters or as noted otherwise. Lap continuous beam bottom steel over supports and continuous top steel at mid -span, unless otherwise directed on the Drawings. 13. Terminate all discontinuous top bars with standard 90-degree hook (placed vertically) unless otherwise noted on the Drawings. (Min 12" excluding bend) 14. Provide the following concrete coverage over reinforcing: Footings Bottom and unformed edges 3" clear Top 2" clear Beams and Columns Ties 3/4" clear Slabs Single Mat, U.N.O. Double mat, interior Double mat, exterior Walls As Noted, but not less than Centered _/4" clear 1-112" clear 1-112" clear 15. Sleeve all penetrations through beams and slabs individually. Core drilling will not be permitted. Submit location and size of sleeves through beams to Architect for review prior to casting concrete. 16. No reinforcing bars shall be cut to accommodate the installation of anchors, embeds or other items. 17. Use the Structural Drawings (including revisions and addenda) in conjunction with reviewed Shop Drawings for placement of reinforcing. 18. At changes in direction of concrete walls, beams and strip footings, provide corner bars of same size and quantity (U.N.O.) as the horizontal steel. Refer to typical detail. 19. All embedded items shall be secured tied in place prior to concrete placement. 20. Rebar Splices 12" overlap, use one rebar tie or zip tie on each end of spice. WOOD FRAMING 1. All wood construction and connections shall conform to AITC "American Institute of Timber Construction" manual, and the "National Design Specifications for Wood Construction", and the most current adopted edition of the Florida Building Code - Chapter 23. 2. All member sizes are to be as shown on Drawings and provide the following minimum properties: Member Species Fb(psi) E(ksi) Post SYP #2 1200 Beams SYP #2 1200 Joist SYP #2 1200 Studs SYP #2 1050 Other SPF 875 3. All wood in contact with concrete or masonry shall be pressure treated. 4. All bolts for bolted connections shall conform to ASTM A307. Use washers between wood and bolt heads and nuts. 5. All metal wood connectors shall be manufactured by Simpson Strong Time Co. (or approved equal) and shall be galvanized. 6. All Joists shall be laterally supported at ends by solid blocking. 7. Stud walls shall be 2 x 4's at 16" O.C. Min. Provide mid span blocking U.N.O. 8. Unless noted otherwise on plans, provide double studs at all jams of openings up to 6'-0:, Use triple studs for openings greater than 6'-0" and less than 10'-0". 9. Where beams or columns are formed of 2 or more members they shall be full length and fastened together per the Florida Building Code. 10. Exterior walls shall have''/z" or better Advantech CDX plywood nailed per plan. 11. Roof plywood shall be 518" Advantech or CDX plywood nailed per plan. 1. Design of metal connected roof trusses shall comply with: • Florida Building Code • NFPA's "National Design Specification for Stress Graded Lumber and it's Fastenings". • Truss Plate Institute's "Design Specifications for Light Metal Plate Connected Roof Trusses." 2. Pre-engineered pre -fabricated wood trusses and their connections to each other shall be designed for the loades indicated in note 8 below by a professional engineer registered in the state of Florida. 3. Signed and sealed shop drawings showing truss configuration with member sizes and connections, truss layout with piece marks, required truss to truss connections, design loads, duration factors and erection details must be submitted for review prior to fabrication. If required, submit copies to the building department at time of permitting. 4. Pre -fabricated wood trusses shall be fabricated from Southern Pine (SPIB) kiln dried #2 or better for chords and #3 grade or better for webs. 5. No wane, skips or other defects shall be connected with one required each side of truss. 6. Number of panels and direction of web members to suit continuous or simple span truss design requirements. See Structural and Architectural Drawings for outline shape and any special conditions I locations of panel points. Note bearing wall locations at all balconies and porches. 7. Permanent truss bracing or bridging members shall be 2" x 4" minimum southern pine with minimum locations as noted on plans. Additional bracing required to strengthen truss components should be noted on the erection drawings in accordance with truss manufacture's recommendations. 8. Handling, erection and bracing of wood trusses shall be in accordance with the Truss Plate Institute, latest edition, and as noted below. 9. Provide bracing & bridging per HIB-91 and truss manufacturing drawings. DESIGN NOTES: 1. Live Loads: Floor = 40 psf Roof = 40 psf 2. Dead Loads: Roof = 20 psf 0 3. Wind Loads: Wind loads are based on the requirements of Chapter- 16 of the 2017 Florida Building Code, 6th Edition and ASCE7-10 a) Risk Category tbd b) Ultimate Wind Speed = 165? c) ASD Wind Speed = ? d) Exposure Category "C" e) Ave. Horizontal Design Wind Pressure = tbd psf (ult.), tbd psf (ASD) f) Component & Cladding ASD Design wind pressures +tbd psf; -tbd psf (worst case horizontal pressures) STRUCTURAL STEEL 1. Fabrication and erection of structural steel shall conform to the AISC "Manual of Steel Construction", ninth edition and the AISC "Specification for Structural Steel Buildings" most recently adopted edition. 2. All structural and miscellaneous steel shall conform to ASTM A-36 with minimum yield strength of 36 ksi. 3. All high - strength bolts shall meet the requirements of the "Specification for Structural Joints using ASTM A325 or A490 Bolts". 4. Unless noted otherwise, all bolts shall be 1/4" O A-325 and shall be bearing type connections. 5. All bolts cast into concrete shall conform to ASTM A-36 or A-307 6. All shop and field welding shall be done by currently certified welders in accordance with AWS "Structural Welding Code", latest edition. 7. Use E70XX Electrodes for all welding, unless noted otherwise. (Grind all exposed welds smooth) 8. Pipe columns shall conform to ASTM A-501 or A53, types E or S, grade B, with a minimum yield strength of 36 ksi. 9. Tube columns shall conform to ASTM A-500, grade B, with a minimum yield stress of 42 ksi. 10. 2" X 20 gage composite metal deck with 3" of normal weight concrete & 6x6x10110 or 6x6xW1.4x1.4. Welded wire mesh at middle of concrete - Typ. 11. 6" core ICF, 11" total width, 16" height blocks #5's A 30" O.C. Vert & #Ys @ 32" O.C. Horiz, except at openings Metal Decking 1. All steel metal deck to be galvanized steel as shown on the plans and in accordance with SDI Composite Deck Design Handbook with minimum yield stress of 40 ksi. Elevator 1. Elevator is not installed or permitted as part of phase A construction. 2. Elevator Shaft, Hard points (for rails), electrical conduit, drywall & doors is part of phase A construction 3. Wood floor system placed on both floors flush with existing floor, installed with screws only as part of phase A construction Water Proofing & Vapor Barriers 1) ASTM E1745 Or ASTM E1993 compliant vapor barrier Shall be installed for the 1st floor living & Garage before the slab is poured. 2) General wall sections made out of ICF (Insulated Concrete Forms) per FL4636 & ASTM E2634 serve as the wall i'apor Barrier 3) Openings in the ICF wall assemblies for doors and windows Shall be flashed with a Fluid Applied Monolithic system on all sides of the opening bucks. Flashing Shall cover 8.00" Min of an opening, outside of the wall & full length inside the Pressure treated buck opening. 4) Exposed / external cupola walls & window openings Shall use a peel -and -stick water proofing & Flashing. 5) Fluid Applied Specification: Poly -Wall Blue Barrier 2100 (Trowel Grade) Shall be applied to any cracks and gaps & Blue Barrier 2400 (Roller Grade). 6) Self -adhered high temperature roof underlayment meeting ASTM D1970 & ASTM D5147 Shall be installed for roof water proofing. '. 0#000. 4% Oopp Eq ONAL This item has been electronically signed and sealed by Robert F. Qleck, Ph.D.,PE using a Digital Signature and date. Printed copies of this document are not considered signed and sealed and the signature must be verified on any electronic copies. 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