3'-0"x 3'-0"x 1'-0" DEEP CONCRETE FOOTING WITH (4) No. 5 BARS EACH WAY
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DEMOLITION PLAN AND DEMOLITION ELEVATIONS
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DIVISION 6 CARPENTRY
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%%USPECIFICATIONS
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DIVISION 3 CONCRETE
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FRAMING LUMBER: #2 or better DOUGLAS-FIR s-dry (moisture #2 or better DOUGLAS-FIR s-dry (moisture content 19%) SIZE AS NOTED ON DWGS. ROUGH HARDWARE: Nails, Screws & Lags for rough framing shall be commercial quality, hot dipped galvanized meeting ASTM A153. Grade 185
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CONCRETE: Fc=4000 PSI PORTLAND CEMENT: ASTM C250 Type I Fine. Flyash: Not to be used AGGREGATE: ASTM C33 (Sections 2 thru 5) COURSE AGGREGATE: ASTM C33 (Sections 5 thru 12) AIR ENTRAINING ADMIXTURE: ASTM C260 CALCIUM CHLORIDE - NOT TO BE USED WATER: Potable REINFORCING STEEL: Bars - ASTM 625 Grade 60
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METAL SURFACES, GENERAL: Fabrication in accordance with the AISC “Specifications for Architecturally Exposed Structural Steel”. Specifications for Architecturally Exposed Structural Steel”. . STRUCTURAL STEEL ANGLES, SHAPES, PLATES AND BARS: ASTM A36 STEEL TUBING: HHS NUTS AND BOLTS: ASTM A307, Grade A. PLAIN WASHERS: ANSI B27.2, Type A. All structural steel and accessories supplied under this section shall be galvanized after fabrication. HOT-DIP GALVANIZED FINISH: Apply zinc coating by the hot-dip process to structural steel indicated for galvanizing according to ASTM A 123. GALVANIZING REPAIR PAINT: High zinc dust content paint, complying with Military Specifications DOD-P-21035 (Ships) or SSPC-Paint-20.
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DIVISION 5 STRUCTURAL STEEL
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DIVISION 2 SITE
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SOIL BEARING CAPACITY: These drawings are based on a presumptive soil bearing bearing capacity of 1,500 pounds per square foot. The Contractor shall hire a Testing Agency to test soiling bearing capacity prior to placement of footings. If soil bearing capacity does not meet presumptive soil bearing, DO NOT PRECEDE and contact Architect for consultation. POROUS FILL: 3/4" to 2 1/2". All fill shall be compacted to 95% density.
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GUARDRAIL AND POST: (HHS 1.9"x .145") Hot Dipped Galvanized Pipe. HANDRAIL: (HHS 1.66"x .140") Hot Dipped Galvanized Pipe. Brackets, Flanges, and Fittings: Same material as primary railing components capable of withstanding structural design loads specified. Posts and Rails shall be fabricated and installed plumb. RAILING MEMBER DIMENSIONS TABLE Posts: (HHS 1.9"x .145") outside dimension 1.900" inside dimension 1.610" wall thickness 0.145" Rails: (HHS 1.9"x .145") outside dimension 1.900" inside dimension 1.610" wall thickness 0.145" Post Bracket: (HHS 2.375"x .154") outside dimension 2.375" inside dimension 2.067" wall thickness 0.154" Handrails: (HHS 1.66"x .140") outside dimension 1.660" inside dimension 1.380" wall thickness 0.140" Handrail Support Bar 1" diameter Round Bar outside dimension 1.000" wall thickness N/A Balustrade Bars 1" diameter Round Bar outside dimension 1.000" wall thickness N/A Handrails and Guardrails shall be designed to resist a concentrated load of 200 pounds in accordance with Section 4.5.1 of ASCE 7. Handrails and Guardrails shall be designed to resist a linear load of 50 pounds per linear foot in accordance with Section 4.5.1 of ASCE 7. Loads on Handrail and Guardrail Systems shall be applied in any direction at any point on the handrail or top rail. Concentrated and uniform loads shall not be applied simultaneously. Railing assembly and attachments to meet requirements without damage or permanent set.
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All fixed joints are to be welded all around and ground smooth prior to galvanization. Welding shall be in accordance with ANSI/AWS D1.1 (current edition). Anchor bolts shall have self-locking hex nuts in accordance with ASTM A563 or ASTM A194. Flat Washers shall be in accordance with ASTM F436 and Plate Washers (for long slotted holes only), shall be in accordance with ASTM A36 or ASTM A709 Grade 36. CLOSE MESH BAR GRATING: Plain Steel Hot Rolled, Smooth, Welded Bar Grating Construction, 1" x 1/8" Bearing Bars, 7/16" on Center, Rectangular Cross Bars 4" on Center. Hot Dipped Galvanized. Manufactured to comply with requirements of ANSI/NAAMM MBG 531. Provide manufacturer's recommended Galvanized/Hot Dipped Saddles and Grating Fasteners for specified Bar Grating. STAIR TREAD: Plain Steel Hot Rolled, Smooth, Welded Bar Grating Construction, 1" x 3/16" Bearing Bars, 7/16" on Center, Rectangular Cross Bars 4" on Center. Hot Dipped Galvanized., 12.1250" Width. Pre-manufactured with Checker Plate Nosing and Welded End Plates fabricated with bolt hole size and location meeting stringer requirements. Stair treads shall be custom fabricated to meet the size, width and length and specifications. Designed and manufactured to comply with requirements of ANSI/NAAMM MBG 531. Openings in stair walking surface is 1/4"x 4" and will not permit the passage of 1/2-inch-diameter (12.7 mm) sphere. Elongated openings are to be placed so that the long dimension is perpendicular to the direction of travel.
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The Contractor shall employ a testing laboratory approved by the Architect to test compaction and concrete during placement of concrete and to submit test and inspection reports
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1/2" PREFORMED BITUMINOUS EXPANSION JOINT FILLER
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NEW 4" CONCRETE WITH BRUSH FINISH (WITH 6x6-W1.4xW1.4 WWR) ON 6" COMPACTED POROUS FILL ON COMPACTED SUBGRADE.
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EDGE FINISHED WITH A SUITABLE TOOL TO 1/4" RADIUS. TYP.
NEW METAL EXTERIOR LANDING AND STAIR DOT GREENWOOD LAKE AIRPORT WEST MILFORD, PASSAIC COUNTY, NEW JERSEY PROJECT No. T0574-12
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TREAD/ RISER DETAIL
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SCALE: 1 1/2" = 1'-0"
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1 1/4" CHECKER PLATE NOSING
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STEEL STAIR TREADS
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STEEL BAR GRATING 1" x 3/16" W/ 7/16" SPACING
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THROUGH BOLT SIDE PLATES
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C10x15.3 STRINGER
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FULLY WELDED HHS POST AND PIPE GUARDRAIL (1.90" O.D.)
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1" DIA. BALUSTERS AT 4" O.C. MAX. TYP.
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14 GAUGE CLOSED RISER PLATE
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7/16"x 7/8" SLOT TYP.
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SECURE SIDE PLATES TO STRINGER WITH 3/8" DIA. A307 GALV. BOLTS W/ NUT, WASHER AND LOCK WASHER
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CLOSED RISER TO TREAD
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7/16" TYP.
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PIPE RAIL TO STRINGER
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STAIR ANCHOR DETAIL
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SCALE: 1 1/2" = 1'-0"
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PIPE RAIL TO STRINGER
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1 1/4" CHECKER PLATE NOSING
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STEEL STAIR TREADS
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STEEL BAR GRATING 1" x 3/16" W/ 7/16" SPACING
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THROUGH BOLT SIDE PLATES
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C10x15.3 STRINGER
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FULLY WELDED HHS POST AND PIPE GUARDRAIL (1.90" O.D.)
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1" DIA. BALUSTERS AT 4" O.C. MAX. TYP.
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14 GAUGE CLOSED RISER PLATE
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3x3x1/4 STEEL ANGLE CONTINUOUS BETWEEN STRINGERS WITH (3) 1/2" DIA. x 5 1/2 GALV. STEEL EXPANSION ANCHORS
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1'-0"x 3'-6"x 3'-0" DEEP CONCRETE FOOTING
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STAIR LANDING DETAIL
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SCALE: 1 1/2" = 1'-0"
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FULLY WELDED HHS POST AND PIPE GUARDRAIL (1.90" O.D.)
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1" DIA. BALUSTERS AT 4" O.C. MAX. TYP.
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PIPE RAIL TO STRINGER
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1 1/4" CHECKER PLATE NOSING
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STEEL STAIR TREADS
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STEEL BAR GRATING 1" x 3/16" W/ 7/16" SPACING
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THROUGH BOLT SIDE PLATES
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C10x15.3 STRINGER
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14 GAUGE CLOSED RISER PLATE
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C10x15.3
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3/8"x 2 5/8" END PLATE SHOP WELDED TO C10x15.3 STRINGER END
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3/8"x 2 5/8" CAP PLATE SHOP WELDED TO C10x15.3 STRINGER END
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(2) 3/4" DIA. A325 BOLTS 13/16" HOLES IN END PLATE AND CHANNEL. EACH STRINGER
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WALL/ LANDING DETAIL
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SCALE: 1 1/2" = 1'-0"
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LANDING EDGE DETAIL
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SCALE: 1 1/2" = 1'-0"
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LANDING EDGE DETAIL
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SCALE: 1 1/2" = 1'-0"
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10" DIAMETER CONCRETE COLUMN WITH (6) No. 5 BARS VERTICAL WITH No. 3 TIES AT 10" O.C
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FULLY WELDED HHS POST AND PIPE GUARDRAIL (1.90" O.D.)
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1" DIA. BALUSTERS AT 4" O.C. MAX. TYP.
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STEEL BAR GRATING 1" x 1/8" W/ 7/16" SPACING
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GALVANIZED GRATING FASTENER AT 12" O.C. TYP.
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8"x 2" DIA. (2.375" O.D.) HHS POST BRACKET FILLET WELDED TO 1/4"x 3"x 8" PLATE EACH SIDE AND SHOP WELDED TO CHANNEL
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CHANNEL TO BEARING PLATE
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C10x15.3
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LINE OF EXISTING EXISTING EXTERIOR WALL CONSTRUCTION
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8"x 2" DIA. (2.375" O.D.) HHS POST BRACKET FILLET WELDED TO 1/4"x 3"x 8" PLATE EACH SIDE AND SHOP WELDED TO CHANNEL
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FULLY WELDED HHS POST AND PIPE GUARDRAIL (1.90" O.D.)
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1" DIA. BALUSTERS AT 4" O.C. MAX. TYP.
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CHANNEL TO BEARING PLATE
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C10x20
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STEEL BAR GRATING 1" x 1/8" W/ 7/16" SPACING
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GALVANIZED GRATING FASTENER AT 12" O.C. TYP.
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BOLT TO W6x9 WITH (2) 3/4" DIA. A325 GALV. BOLTS
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STEEL BAR GRATING 1" x 1/8" W/ 7/16" SPACING
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W6x9. COPE FLANGES OF W6 AS REQUIRED
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CHANNEL TO STEEL PLATE
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FULLY WELDED HHS POST AND PIPE GUARDRAIL (1.90" O.D.)
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1" DIA. BALUSTERS AT 4" O.C. MAX. TYP.
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CHANNEL TO STEEL PLATE
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C10x15.3
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W6x9. COPE FLANGES OF W6 AS REQUIRED
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1/2" DIA. THROUGH BOLTS AT 6" O.C. STAGGERED
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GALVANIZED GRATING FASTENER AT 12" O.C. TYP.
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GALVANIZED GRATING FASTENER AT 12" O.C. TYP.
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HANDRAIL NOTES:
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THE LEADING EDGE OF THE TREAD SHALL HAVE A RADIUS NO GREATER THAN 9/16". NOSING PROVIDED ON STAIRWAYS WITH SOLID RISERS SHALL BE 3/4" MIN., 1 1/4" MAX.
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STAIR NOTES:
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HANDRAIL HEIGHT SHALL NOT BE LESS THAN 34 INCHES AND NOT MORE THAN 38 INCHES WHEN MEASURED VERTICALLY FROM THE SLOPED PLANE ADJOINING THE TREAD NOSING, OR FINISH SURFACE OF RAMP SLOPE.
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TOP OF GRIPPING SURFACE SHALL BE CONTINUOUS, WITHOUT INTERRUPTION BY POSTS, OTHER CONSTRUCTION ELEMENTS OR OBSTRUCTIONS, THE FULL LENGTH OF THE FLIGHT.
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HANDRAILS SHALL PROVIDE GRASPABILITY. HANDRAILS SHALL HAVE A CIRCULAR CROSS SECTION OF 1 1/4" MINIMUM AND 2 5/8" MAXIMUM. HANDRAIL SHAPES THAT PROVIDE AN EQUIVALENT GRASPING SURFACE ARE PERMISSIBLE. EDGES SHALL HAVE A MINIMUM RADIUS OF 1/8".
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NOSING PROJECTION SHALL BE UNIFORM THROUGHOUT THE STAIR, INCLUDING THE NOSING AT THE LEVEL OF FLOORS AND LANDINGS.
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BEVELING OF NOSING SHALL NOT EXCEED 9/16". RISERS SHALL BE VERTICAL OR SLOPED FROM THE UNDERSIDE OF THE LEADING EDGE OF THE TREAD ABOVE AT AN ANGLE NOT MORE THAN 30 DEGREES FROM THE VERTICAL.
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3.)
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THE RISER WITH THE GREATEST HEIGHT SHALL VARY NO MORE THAN 3/8" WITH THE RISER WITH THE SMALLEST HEIGHT.
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CLEAR SPACE BETWEEN A HANDRAIL AND A WALL OR OTHER SURFACE SHALL BE A MINIMUM OF 1 1/2". A HANDRAIL AND A WALL OR OTHER SURFACE ADJACENT TO THE HANDRAIL SHALL BE FREE OF ANY SHARP OR ABRASIVE ELEMENTS.
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PROJECTIONS INTO THE REQUIRED WIDTH OF STAIRWAYAT EACH HANDRAIL SHALL NOT EXCEED 4 1/2" INCHES AT OR BELOW THE HANDRAIL HEIGHT.
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HANDRAILS SHALL BE DESIGNED TO RESIST A LOAD OF 50 PLF APPLIED IN ANY DIRECTION ALONG THE TOP. THEY SHALL ALSO BE CAPABLE OF RESISTING A 200 LB CONCENTRATED LOAD APPLIED IN ANY DIRECTION AT ANY POINT ALONG THE TOP. THE CONCENTRATED LOAD DOES NOT NEED TO BE CONSIDERED AS ACTING SIMULTANEOUSLY WITH THE 50 PLF LOAD.
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STAIR, GUARDRAIL, AND HANDRAIL REQUIREMENTS
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SCALE: 1/2" = 1'-0"
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HANDRAIL EXTENSIONS: TOP OF STAIRS: HANDRAILS SHALL EXTEND HORIZONTALLY AT LEAST 12" BEYOND THE TOP RISER BOTTOM OF STAIRS: HANDRAILS SHALL CONTINUE TO SLOPE FOR THE DEPTH OF ONE TREAD BEYOND THE BOTTOM RISER. THE RADIUS PORTION OF THE HANDRAIL EXTENSION SHALL NOT SHALL NOT BE INCLUDED IN THE REQUIRED EXTENSION LENGTH. IN THE REQUIRED EXTENSION LENGTH.
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GUARDRAIL NOTES:
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GUARDRAILS SHALL BE LOCATED ALONG OPEN-SIDED WALKING SURFACES THAT ARE LOCATED MORE THAN 30", MEASURED VERTICALLY, TO THE FLOOR OR GRADE.
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REQUIRED GUARDRAIL HEIGHT SHALL BE NOT LESS THAN 42" HIGH, MEASURED VERTICALLY ABOVE THE WALKING SURFACE.
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REQUIRED GUARDRAILS SHALL NOT HAVE AN OPENING WHICH ALLOWS THE PASSAGE OF A 4" DIAMETER SPHERE.
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1 1/2" MIN. TO OBSTRUCTIONS
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GUARDRAIL POST MOUNTING BRACKETS
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HANDRAIL
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1.66" (O.D.)
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SCALE: 3" = 1'-0"
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HANDRAIL MOUNTS
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MAXIMUM RISER HEIGHT SHALL BE 7"
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LINE OF GUARDRAIL POST
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GUARDRAIL TOP RAIL
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SPACING BETWEEN BALUSTERS ON GUARDRAILS SHALL NOT EXCEED 3 7/8"
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NOTE: GUARDRAIL AND HANDRAIL CONFIGURATION MAY VARY PER MANUFACTURER, HOWEVER ALL OF THE REQUIREMENTS INDICATED IN THESE NOTES AND DIAGRAMS MUST BE MET.
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42" HIGH GALVANIZED GUARDRAIL
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36" HIGH GALVANIZED HANDRAIL
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3 7/8" MAX.
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34"-38"
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27" MAX.
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12"
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3'-6"
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11"
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11"
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34"-38"
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TYP.
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REFER TO STAIR NOTES THIS SHEET FOR NOSING REQUIREMENTS
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RETURN HANDRAIL EXTENSIONS SMOOTHLY TO RAIL POST
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10" DIAMETER CONCRETE COLUMN WITH (6) No. 5 BARS VERTICAL WITH No. 3 TIES AT 10" O.C.
