ALBENI FALLS STAIRS DESIGN DRAWINGS (final).pdf

STRUCTURAL STEEL

1. THESE NOTES, AND OTHER DRAWING DETAILS AND NOTES, CONTAINED WITHIN,

ARE PROVIDED TO MEET SPECIFIC REQUIREMENTS.

2. ALL PRODUCTS SHALL BE INSTALLED IN ACCORDANCE WITH THE

MANUFACTURERS' WRITTEN INSTRUCTIONS AND RECOMMENDATIONS, UNLESS

NOTED OTHERWISE.

3. ELEVATION DATUM PER EXISTING DRAWINGS. NOTIFY THE CONTRACTING

OFFICER OF ANY DISCREPANCIES BETWEEN THE STRUCTURAL DRAWINGS AND

EXISTING CONDITIONS.

4. USE STRUCTURAL DRAWINGS IN CONJUNCTION WITH ALL EXISTING CONDITIONS,

COORDINATE WORK OF ALL TRADES. THE CONTRACTOR IS RESPONSIBLE FOR

DETERMINING SUCH REQUIREMENTS PRIOR TO FABRICATION OR ERECTION OF

THE STRUCTURE. PENETRATIONS THROUGH THE EXISTING STRUCTURE ARE

NOT PERMITTED WITHOUT WRITTEN APPROVAL BY THE CONTRACTING OFFICER.

5. THE STRUCTURAL DRAWINGS GOVERN THE WORK FOR STRUCTURAL

FEATURES, UNLESS OTHERWISE NOTED, DIMENSIONS SHOWN ON PLANS,

SECTIONS, AND DETAILS ARE TO GOVERN THE STRUCTURAL WORK.

6. REPRODUCTION OF CONTRACT DRAWINGS SHALL NOT BE USED AS SHOP

DRAWINGS UNDER ANY CIRCUMSTANCE.

7. SUBMIT FOR GOVERNMENT REVIEW AND ACCEPTANCE ALL STRUCTURAL

FEATURES FOUND WITHIN THIS DRAWING SET (INCLUDING BUT NOT LIMITED TO:

STRUCTURAL STEEL, BOLTS, POST-INSTALLED ANCHOR SELECTION, HANDRAIL

DETAILING, WHEELS, LEVELING COMPONENTS, ETC)

1. THE PROJECT SHALL BE DESIGNED PRIMARILY UNDER UFC CRITERIA AND

INDUSTRY STANDARDS AS MODIFIED BY THE UFC. STRUCTURAL DESIGN,

FABRICATION, AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE

GOVERNING CODE EDITIONS OF THE IBC AND ENGINEERING MANUALS,

INCLUDING BUT NOT LIMITED TO:

A. ACI 318-19 BUILDING CODE REQUIREMENTS FOR STRUCTURAL

CONCRETE

B. AISC MANUAL OF STEEL CONSTRUCTION (15th EDITION)

C. ASCE 7-16 AMERICAN SOCIETY OF CIVIL ENGINEERS MINIMUM DESIGN

LOADS AND ASSOCIATED CRITERIA FOR BUILDINGS AND OTHER

STRUCTURES

D. AWS D1.1 2017 STRUCTURAL WELDING CODE - STEEL

E. INTERNATIONAL BUILDING CODE (IBC) 2021

F. UFC 1-200-01, CHANGE 1, 1 OCT 2020, DOD BUILDING CODE

G. UFC 3-301-01, CHANGE 1, 4 FEB 2022, STRUCTURAL ENGINEERING

2. DESIGN LOADS:

A. RISK CATEGORY = II

B. DEAD LOADS:

1. SELF WEIGHT OF STEEL AND GRATING

C. LIVE LOADS:

1. UNIFORM STAIR LOAD = 100 PSF

D. SNOW LOAD:

1. SNOW LOAD = 50 PSF (NON-CONCURRENT WITH LIVE LOAD)

E. WIND LOAD:

1. ULTIMATE DESIGN WIND SPEED = 103 MPH 3-SECOND GUST

2. EXPOSURE CATEGORY = C

3. CONDITION = OPEN

A. GCpi = +/-0.18

4. TOPOGRAPHIC FACTOR = 1.0

3. SEISMIC LOAD:

A. MAXIMUM CONSIDERED EARTHQUAKE SPECTRAL RESPONSE

ACCELERATIONS:

1. Ss = 0.329g

2. S1 = 0.113g

B. DESIGN EARTHQUAKE SPECTRAL RESPONSE ACCELERATIONS:

1. SDS = 0.337g

C. SITE CLASS = D

D. SEISMIC DESIGN CATEGORY = D

E. IMPORTANCE FACTOR = 1.0

F. SEISMIC FORCE RESISTING SYSTEM = ORDINARY CONCENTRIC BRACED

FRAME

1. R = 3.25

2. Ω = 2

3. Cd = 3.25

G. ANALYSIS PROCEDURE = EQUIVALENT LATERAL FORCE

DESIGN STANDARDS & LOADS

1. ALL STEEL SHALL BE "BUY AMERICAN" STEEL.

2. STRUCTURAL STEEL SHALL BE FABRICATED AND ERECTED IN ACCORDANCE WITH

AISC STEEL CONSTRUCTION MANUAL.

3. ALL STEEL SHALL BE HOT DIPPED GALVANIZED UNLESS NOTED OTHERWISE.

4. WIDE FLANGE SHAPES AND TEES:

A. ASTM A992, Fy = 50 KSI

5. PLATES, CHANNELS, AND ANGLES:

A. ASTM A36, Fy = 36 KSI

6. OTHER SHAPES AND THREADED RODS:

A. ASTM A36, Fy = 36 KSI, UNLESS NOTED OTHERWISE

7. SQUARE AND RECTANGULAR HOLLOW STRUCTURAL SECTIONS:

A. ASTM A500 GRADE C, Fy = 50 KSI

8. ROUND HOLLOW STRUCTURAL SECTIONS:

A. ASTM A500 GRADE C, Fy = 46 KSI

9. BOLTS:

A. 3/4"Ø ASTM F3125, TYPE N, TYPICAL UNLESS NOTED OTHERWISE

FRAMING CONNECTIONS:

1. PRETENSIONED JOINTS WITH STANDARD HOLES, UNLESS NOTED

OTHERWISE

10. WELD IN ACCORDANCE WITH AWS D1.1 USING E70 ELECTRODE WITH LOW

HYDROGEN.

11. DRAINAGE HOLES:

A. DRILL ADEQUATE DRAINAGE HOLES TO ELIMINATE WATER TRAPS. HOLE

DIAMETER MUST BE 1/2 INCH AND LOCATION INDICATED ON THE DETAIL

DRAWINGS. HOLE SIZE AND LOCATIONS MUST NOT AFFECT THE

STRUCTURAL INTEGRITY. PROVIDE ¼” CAP PLATE AT TOP OF COLUMN.

12. LIFT POINTS SHALL BE MARKED WITH LETTER AND WORDING INDICATING THE

DESIGNATED LIFT POINTS.

GENERAL NOTES

GRATING & STAIR

1. PROVIDE 1.5" GRATING, I-BAR CONFIGURATION MADE OF PULTRUDED

FIBERGLASS REINFORCED POLYMER (FRP), DARK GRAY.

2. GRATING CENTERS SHALL BE 1" WITH 40% OPEN AREA CAPABLE OF SPANNING 48"

3. CONNECT PER MANUFACTURERS SPECIFIC CONNECTIONS TO STRUCTURAL

STEEL

4. VERIFY GALVANIC COMPATIBILITY

5. HORIZONTAL DIMENSIONS CAN BE ADJUSTED PER THE ACTUAL TREAD/RISER

LAYOUT

6. BOTTOM TREAD SHALL HAVE REFLECTIVE YELLOW TAPE ON FRONT EDGE

BEARING PAD

1. PROVIDE 1/4" ELASTOMERIC BEARING PAD CUT TO FIT HINGED PLATE BEARING

ON EXISTING ROOF

2. DUROMETER REQUIRMENT = 55A

NOTES FOR ALBENI FALLS DAM PERSONNEL

1. INSTALLATION

ALBENI FALLD DAM PERSONNEL IS REPONSIBLE FOR THE STAIR INSTALLATION.

2. FIELD PRIMING

FIELD PRIME STEEL EXPOSED TO THE WEATHER. THE FIELD BOLT HEADS AND

NUTS, FIELD WELDS, AND ANY ABRASIONS IN THE SHOP COAT MUST BE CLEANED

AND PRIMED WITH PAINT OF THE SAME QUALITY AS THAT USED FOR THE SHOP

COAT.

3. GALVANIZING REPAIR

REPAIR DAMAGE TO GALVANIZED COATINGS USING ASTM A780/A780M ZINC RICH

PAINT FOR GALVANIZING DAMAGED BY HANDLING, TRANSPORTING, CUTTING,

WELDING, OR BOLTING. DO NOT HEAT SURFACES TO WHICH REPAIR PAINT HAS

BEEN APPLIED.

4. CONTRACT DRAWINGS REPRESENT THE FINISHED STRUCTURE. ALBENI FALLS

PERSONNNEL IS RESPONSIBLE FOR ALL MEANS AND METHODS OF

CONSTRUCTION INCLUDING, BUT NOT LIMITED TO, SHORING, TEMPORARY

CONSTRUCTION LOADS, AND TEMPORARY BRACING.

5. POST-INSTALLED ANCHOR INSTALLATION SHALL BE IN CONFORMANCE WITH

MANUFACTURER'S PRINTED LITERATURE, AND AS INDICATED IN THE DRAWINGS.

6. GENERAL ANCHOR REQUIREMENTS:

A. ALL ANCHORS SHALL BE APPROVED FOR USE WITH THE GOVERNING

EDITION OF THE IBC

B. DRILL HOLES WITH A PERCUSSION-TYPE DRILL AND REMOVE ALL

CUTTINGS FROM THE HOLES

C. DO NOT CORE DRILL, DO NOT CUT REINFORCING

D. DRILL HOLES STRAIGHT AND TRUE AT RIGHT ANGLES TO THE FACE, UNO

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D3 ELEVATION E-E'

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BRACE DETAIL SEE

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MULIT SPAN

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MULIT SPAN

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1.5" HORIZ SLOT ON L4x4 (TYP.)

AT SURFACE MOUNT

C12 STRINGER

C10 BEAM w/ (2)- 3/4" DIA BOLTS

RAILING DETAIL BY

SUPPLIER &

SHALL FOLLOW OSHA &

EM 385-1-1 REQ

1/4" PLATE SHOP WELD

TO HSS COLUMN (TYP.)

C12 STRINGER

C12

C10

GRID

GRIDGRID

GRID

C12

TREAD

TREAD

(B R

A C

E

GRID

L4x4

C12 STRINGER

(B R

A C

E

(BRACE) NOT SHOWN

FOR CLARITY

C12 STRINGER

C10 BEAM w/ (2)- 3/4" DIA BOLTS

GRID

C12 STRINGER

GRID

1/4" END CAP

EXISTING SLABEXISTING SLABEXISTING SLAB

C12

(B R

A C

E

GRATING

RAILING DETAIL BY

SUPPLIER &

SHALL FOLLOW OSHA OSHA

AND EM 385-1-1 REQ

(B R

A C

E

(B R

A C

E

(BRACE)

GRID

(HORIZ)(HORIZ) (HORIZ)

1'-2"x6"x1/2" B PL

1'-0" (HORIZ)

1'-0" (HORIZ)

@ BOTH SIDE

OF FRAME

(4 LOCATIONS)

C12

TREAD

TREAD

E X

IS

T

IN

G

C O

N C

R E

T E

W A

L L

UPPER STRINGER w/

COLUMN

LOWER LANDING w/ UPPER

STRINGER

LOWER LANDING w/ LOWER

STRINGER

TIE BAR AT EXISTING CONCRETE WALLBRACES AT COLUMN

UPPER LANDING

1/2" PLATE w/ (2)- 5/8" DIA

WEDGE ANCHOR (HILTI

TITEN HD)

1/4" x4"x4" PL

L3x3x1/4" TIE BAR

GRID

CASTER ASSEMBLY (TYPICAL)

OUTSIDE

INSIDE STAIR

GRID

GRID

GRID GRID GRID

(HORIZ)

F.F.

F.F.

F.F. F.F. F.F.F.F.

6"DIAx3" STEEL CASTER

(CAP = 2.5 KIPS)

ELEV VIEW

CASTER

CASTER ASSEMBLY

1/4" STIFF (SHOP WELD TO COL.)

1/2" PLATE (SHOP

WELD TO COL.)

1/2" PLATE

1/4" STIFF

GRID

C10

C12 STRINGER

CASTER IS REMOVED FROM

THIS SECTION FOR CLARITY

CASTER (TYP.)

CASTER (TYP.)

CASTER (TYP.)

1/4" PLATE ON 3

HINGES

C10

1.5" THICK TREADS/GRATING, MAX

SPAN 48". (TYP.) SEE GEN NOTE

L2X2X8" CLIP

SHOP WELD

TO STRINGER

SADLE CLIPS HOLD

DOWNS (MIN TWO

PER MFR)

TREADS/GRATING

CONNECTION (TYPICAL)

TRIM TREAD

AROUND HSS COL

(TYP.)

TRIM TREAD

AROUND HSS COL

(TYP.)

BOT OF COLUMN

WHEEL

BOT OF COLUMN

WHEEL

BOT OF COLUMN

SHIM (IF REQ'D)

HSS4x4 LIFT POINT

(ACROSS COLUMNS)

HSS4x4 LIFT POINT

(ACROSS COLUMNS)

1.5" HORIZ SLOT

ON L4x4 (TYP.)

1/4" PLATE

(SHOP WELD

TO STRINGER

HSS4x4 LIFT POINT

(ACROSS COLUMN)

TYP

1/4

C12 STRINGER

TYP COLUMN TO

STRINGER CONN

(HORIZ)

HSS4x4 LIFT POINT

(ACROSS COLUMNS)

TREADS/GRATING

LIFT PT

WHEEL BASE LEVEL

(TIE)

(TIE)

(TIE) (TIE)

L2.5x2.5 DIAGONAL (TYP.) COPE VERT LEG CONNECT TO (HORIZ) w/

3/8" DIA BOLT (TYP.)

(TIE)

L2.5x2.5 DIAGONAL

1/4" CAP (TYP.)

1/2" DIA BOLT (TYP.)

RAILING (SEE PLAN)

TIE BAR

TO CONC

WALL

WHEEL

(2)- 3/4" DIA BOLTS (TYP.)

L3x3x1/4" TIE BAR (SHIP LONG AT

3'-0" FOR FIELD CUT/FITTING)

US Army Corps of Engineers ®

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A1 STAIR CONNNECTION AT BASE

S-303

E8 ISOMETRIC VIEW

L5X5X1/4x8" AT SUPPORT

(2) 3/4"Ø BOLTS, CENTER

ON ANGLE LEG

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T O

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D R

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ANGLE, PIPE

SHALL BE CUT

AND

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ANGLE

TOP OF ANGLE

REFERENCE

P

IP

E

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S T

A N

D A

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G A

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CONNECTION TO CHANNEL

RAILING AT END OF STAIR TO ROOF - "B"

1' - 10"

FACE OF TECH SERVICES

BUIDLING CONCRETE

1' - 6" 5' - 2" MAX 1' - 6"

3" GAP

TYPICAL RAILING SECTION - STRAIGHT RUN "A"

ADJACENT

RAILINGS

NOTE:

1. SEE PLAN FOR SEGMENTS DESIGNATED

2. FOLLOW OSHA AND EM 385-1-1 FOR HANDRAIL

REQUIREMENT.

NOTE: SEGMENTS ALONG RAILING RUN

SHALL BE EQUALLY SPACED, SEE PLAN

TY

P1'

5"

AND MID LANDING

2' - 8" AT TOP

3" GAP

TYP

1' - 0" 1' - 0"

1 1/2" GAP

1' - 0"

TYP

2' - 3"

INTERMEDIATE "MID"

AND TOP LANDING

RISE

RAILING MAIN RISE - "C"

GROOVE WELD ALL AROUND (SEAL, 1/8" MIN),

TYP AT PIPE TO PIPE 90° JOINT

ANGLED MITER

WELD ALL AROUND,

GRIND SMOOTH, TYP

AT CORNERS

GROOVE WELD ALL

AROUND (SEAL, 1/8" MIN),

TYP AT PIPE TO PIPE

HORIZONTAL/VERTICAL

JOINT

0' - 3 7/8"

0'

1/

4"

STAIR TREAD/CONN.

US Army Corps of Engineers ®

SHEET ID

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1" = 1'-0"S-304

A1 Stair Handrail