GR00114 - STEP ONE part-6.pdf

90° T Y P

90° T Y P

A9 TYPICAL SAW CUT LINES

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TYPICAL CONCRETE REPAIR

CUT DEPTH

2" MIN. SAW

1" MIN.

M

IN

A3

REINFORCEMENT REPLACEMENT DETAIL

M

IN

LAP SPLICE

AS REQUIRED (SEE NOTE 2)

G9

NTS

GROUT POCKET REPAIR DETAIL

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CONCRETE PARAPET REPAIR DETAIL

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PROVIDE MECHANICAL SPLICE

EXISTING REINFORCEMENT OR

12" O.C. LAP SPLICE WITH

HORIZONTAL REBAR WITH #4 @

REMOVE AND REPLACE

TIE IN WITH EXISTING REINFORCEMENT.

PLANS. USE MECHANICAL SPLICES TO

MATCH ORIGINAL CONSTRUCTION

WITH #4 @ 12" O.C. WITH BEND TO

CUT REBAR ABOVE CJ AND REPLACE

METAL RAILING AT CONCRETE PARAPET REPAIR DETAIL

E3

CONTRACTOR TO REMOVE.

SOME EFFORT BY THE

AND WILL LIKELY REQUIRE

STUCK TO THE METAL RAILING

THE PIPE SLEEVE IS LIKELY

COATING SYSTEM. NOTE THAT

ALUMINUM PIGMENTED EPOXY

INSIDE AND OUTSIDE WITH

METAL RAILING AND COAT

REPLACE STEEL SLEEVE FOR

EPOXY COATING SYSTEM

ALUMINUM PIGMENTED

REPLACE AND COAT WITH

PIGMENTED EPOXY COATING SYSTEM

PREPPED AREA WITH WITH ALUMINUM

NEXT 1'-0" ADJACENT TO CONCRETE. COAT

CORRODED PORTION OF PIPE AND BRUSH

COMMERCIAL BLAST CLEAN HEAVILY

CONCRETE SIDEWALK REPLACEMENT DETAIL

J3

CONCRETE

HATCHED PORTION OF

REMOVE AND REPLACE

WITH #6 @ 12" O.C.

REMOVE AND REPLACE

TIE IN WITH EXISTING REINFORCEMENT.

PLANS. USE MECHANICAL SPLICES TO

MATCH ORIGINAL CONSTRUCTION

WITH #6 @ 12" O.C. WITH BEND TO

CUT REBAR ABOVE CJ AND REPLACE

CONCRETE REMOVAL

DURING SIDEWALK

REINFORCEMENT

DAMAGE VERTICAL

TAKE CARE NOT TO

WITH #4 @ 12" O.C.

REMOVE AND REPLACE

REPAIR

CONCRETE PARAPET DURING

BRACING/SUPPORT FOR

PROVIDE TEMPORARY

REQUIREMENTS.

FOR LEAD CAULK REMOVAL

REPAIR IS COMPLETE. SEE SPECS

WITH SILICONE CAULK ONCE SPALL

REMOVE LEAD CAULK AND REPLACE

ADJACENT TO CONCRETE PARAPET

OF METAL RAILING STEEL PIPE

DRILL 1/4" DRAINAGE HOLE IN BOTTOM

SHOWING ASPHALT OVERLAY

SEE PHOTO 16 ON S-202

ASPHALT OVERLAY

SEE PHOTOS SHOWING

~2"

SEPARATE POURS

SPALL OR

DAMAGED

CONCRETE

SPALL OR

DAMAGED

CONCRETE

JOINT

CONSTRUCTION

EXPANSION JOINT ON EACH SIDE

USE FORM AT EDGE

SEE NOTE 2

NOTES:

1.ALL PATCH REPAIRS SHALL BE RECTANGULAR IN SHAPE AND HAVE UNIFORM DEPTH. SAW CUT LINES SHALL RUN

PERPENDICULAR OR PARALLEL TO THE SPILLWAY STRUCTURE. SAW CUT LINES FOR PATCHES AWAY FROM

JOINTS SHALL BE SIMILAR AND RECTANGULAR.

2. CONSTRUCTION JOINTS MAY BE A SINGLE POUR WITH A TOOLED JOINT. EXPANSION JOINTS SHALL BE POURED

SEPARATELY WITH DISCONTINUOUS REINFORCEMENT.

CORNERS

SAW CUTS AT

DO NOT OVERLAP

REMOVAL LIMITS

CONCRETE

SAW CUT

PERIMETER

TOP OF SLAB

PERIMETER SAW CUT

REMOVAL LIMITS

CONCRETE

FACE

VERTICAL

REINF.

EXISTING

REINF.

EXISTING

CONCRETE/PATCH REMOVAL NOTES:

1. SEE PATCH PHOTOS FOR APPROXIMATE SAW CUT LINE LOCATIONS. SEE DETAIL "TYPICAL SAW CUT LINE LOCATIONS"

FOR LOCATING SAW CUT LINE AROUND JOINTS. CONTRACTOR SHALL PERFORM SOUNDING AND PAINT AREAS OF

EXTENTS FOR REMOVAL TO BE APPROVED BY THE CONTRACTING OFFICER'S REPRESENTATIVE PRIOR TO CONCRETE

REMOVAL. SAW CUT LINES SHALL BE LOCATED ALONG PAINTED AREAS OF EXTENTS.

2. CONCRETE REMOVAL SHALL INCLUDE ALL DELETERIOUS AND DAMAGED CONCRETE. CONCRETE REMOVAL SHALL

EXTEND A MINIMUM OF 1 INCH BELOW EXISTING REINFORCEMENT (TOP FACE REINFORCEMENT IN SLABS AND OUTER

FACE REINFORCEMENT IN WALLS).

3. EXISTING REINFORCEMENT SHALL NOT BE CUT OR DAMAGED IN ANY WAY DURING CONCRETE REMOVAL. ADDITIONAL

REINFORCEMENT THAT WAS ADDED IN PREVIOUS PATCH REPAIRS MAY BE REMOVED AND DISPOSED OF.

4. PRIOR TO CONCRETE PLACEMENT, CLEAN EXPOSED CONCRETE SURFACES AND REINFORCEMENT TO ACHIEVE A

SOUND, CLEAN, AND OPEN PORE SURFACE. REINFORCEMENT SHALL BE CLEANED BY ABRASIVE BLASTING OR WATER

BLASTING (7,000 PSI MINIMUM). APPLY ANTI-CORROSION AGENT TO REINFORCEMENT. APPLY BONDING AGENT TO

EXISTING CONCRETE SURFACE WITH THE EXCEPTION OF EXPANSION AND CONSTRUCTION JOINT SURFACES.

5. PATCHES ON VERTICAL SURFACES SHALL HAVE FORMS THAT SHALL BE GROUT TIGHT AND BRACED TO WITHSTAND

PUMPED CONCRETE PRESSURES. PROVIDE VENTS AS REQUIRED TO RELEASE AIR WITHIN FORMS AS CONCRETE IS

PLACED. FORM WORK SHALL REMAIN IN PLACE A MINIMUM OF 72 HOURS OR UNTIL THE REPAIR HAS REACHED 75% OF

ITS DESIGN STRENGTH, WHICHEVER IS GREATER. WALL REPAIRS SHALL HAVE PATCHES MATCH EXISTING FLUTES.

6. SEE SECTION 03 01 00 REHABILITATION OF CONCRETE FOR ADDITIONAL REQUIREMENTS.

7. SEE DETAIL A3/S-500 FOR REBAR REPLACEMENT. REPLACE REINFORCEMENT WHERE EXISTING REINFORCEMENT IS

DAMAGED DURING CONCRETE REMOVAL OR REINFORCEMENT IS UNUSABLE. COORDINATE REINFORCEMENT

REPLACEMENT WITH THE CONTRACTING OFFICER'S REPRESENTATIVE.

TOP ONLY

SAW CUT AT

SLOPE 2"

REMOVAL LIMITS

CONCRETE

TOP OF SLAB

REINF.

EXISTING REINF.

EXISTING

MECHANICAL SPLICE

NEW REINF.

REINFORCEMENT

TYPICAL ALL

REQUIREMENTS

SPLICE

EXISTING

SHALL MATCH

NEW BAR SIZE

NOTES:

1. LAP SPLICE LENGTH SHALL BE AS FOLLOWS:

#3 - 1'-2" #4 - 1'-8"

#5 - 1'11" #6 - 2'-3"

#7 - 3'-3" #8 - 3'-9"

#9 - 4'-3" #10 - 4'-9"

2. CONCRETE REMOVAL EXTENTS SHALL BE AS REQUIRED TO EXPOSE

ENOUGH SOUND REBAR TO SPLICE WITH NEW BAR

NOTES:

1. TAKE CARE NOT TO DAMAGE POST-TENSIONED REINFORCEMENT AND PRECAST CONCRETE DURING GROUT POCKET

REMOVAL. REMOVAL SHALL INCLUDE FULL EXTENTS OF GROUT.

2. THERE ARE MULTIPLE PRESTRESSED STEEL ALTERNATIVES IN THE ORIGINAL CONSTRUCTION PLANS AND IT IS

UNKNOWN WHICH SYSTEM WAS USED. SEE "DECK STIFFENER BEAMS" ON SHEETS S-907 THRU S-910. FIELD VERIFY

CONDITIONS AND PLAN ACCORDINGLY FOR VARIABLE POSSIBILITIES IN GROUT POCKET DEPTH AND EXTENTS. FOR

BIDDING PURPOSES, ASSUME THE SYSTEM THAT WOULD RESULT IN THE COSTLIEST REPAIRS TO THE CONTRACTOR

EXISTS.

3. ANY EXISTING REINFORCEMENT THAT IS ENCOUNTERED SHALL NOT BE CUT OR DAMAGED IN ANY WAY DURING GROUT

REMOVAL.

4. PRIOR TO NEW MATERIAL PLACEMENT, CLEAN EXPOSED CONCRETE SURFACES AND STEEL TO ACHIEVE A SOUND, CLEAN, AND OPEN PORE SURFACE. REINFORCEMENT SHALL BE CLEANED BY ABRASIVE BLASTING OR WATER BLASTING.

APPLY ANTI-CORROSION AGENT TO STEEL. APPLY BONDING AGENT TO EXISTING CONCRETE SURFACE.

5. FORMS THAT SHALL BE GROUT TIGHT AND BRACED TO WITHSTAND PUMPED REPAIR MATERIAL PRESSURES. PROVIDE

VENTS AS REQUIRED TO RELEASE AIR WITHIN FORMS AS CONCRETE IS PLACED. FORM WORK SHALL REMAIN IN PLACE A

MINIMUM OF 72 HOURS OR UNTIL THE REPAIR HAS REACHED 75% OF ITS DESIGN STRENGTH, WHICHEVER IS GREATER.

6. SEE SECTION 03 01 00 REHABILITATION OF CONCRETE FOR ADDITIONAL REQUIREMENTS.

POCKET EXTENTS.

S-202 FOR GROUT

ON SHEETS S-200 THRU

MATERIAL, SEE PHOTOS

REPLACE WITH REPAIR

REMOVE GROUT AND

STEEL BAR/STRANDS

EXISTING POST-TENSIONED

DIMENSIONS VARY

STIFFNER BEAM,

EXISTING DECK

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SITE IF DESIRED.

BEFORE CONCRETE CAN BE PLACED. ADEQUATE TIME SHALL BE ALLOWED SO THAT THE EOR CAN VISIT THE

3. AFTER CONCRETE REMOVAL AND REPAIR PREPERATION, APPROVAL FROM THE EOR SHALL BE PROVIDED

CONCRETE WITH APPROVAL FROM THE EOR.

VERIFY ENTIRE EXTENTS OF DAMAGED CONCRETE PARAPET HAS BEEN REMOVED AFTER REMOVAL OF

PRIOR TO CONCRETE REMOVAL. ADEQUATE TIME SHALL BE ALLOWED SO THAT THE EOR CAN VISIT THE SITE.

PORTION OF CONCRETE PARAPET IS REPAIRED. THE REPAIR EXTENTS SHALL BE APPROVED BY THE EOR

2. USE A HAMMER TO FIND TOTAL EXTENT OF DAMAGED CONCRETE TO ENSURE THAT ENTIRE DAMAGED

1. DETAIL IS TAKEN FROM ORIGINAL CONSTRUCTION PLANS. SEE MARKUPS FOR WORK ON THIS CONTRACT.

NOTES:

3. SEE RECORD DRAWINGS S-911 FOR ADDITIONAL INFORMATION.

WIDTH OF THE CONCRETE PARAPET.

AND VERTICAL DIRECTION AS SHOWN IN THE SPALL REPAIR DETAIL. THE SPALL REPAIR SHALL BE THE FULL

MUST INCLUDE ENTIRE METAL RAILING SLEEVE AND REACH THE REINFORCEMENT IN BOTH THE HORIZONTAL

2. PERFORM SPALL REPAIR IN ACCORDANCE WITH THE SPALL REPAIR DETAIL ON THIS SHEET. SPALL REPAIR

1. DETAIL IS TAKEN FROM ORIGINAL CONSTRUCTION PLANS. SEE MARKUPS FOR WORK ON THIS CONTRACT.

NOTES:

2. SEE RECORD DRAWINGS S-900 AND S-906 FOR ADDITIONAL INFORMATION.

1. DETAIL IS TAKEN FROM ORIGINAL CONSTRUCTION PLANS. SEE MARKUPS FOR WORK ON THIS CONTRACT.

NOTES:

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FOR INFORMATION ONLY

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AND NOT FOR CONSTRUCTION

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SHEET ID

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