Amendment 0002 - LD24 Service Bridge and Tainter Gate Rehab Plans_Sheet SB-304 Revisions.pdf

7'-0"83'-0"7'-0"

90'-0"

10'-2 1/2"

TO BE REPAIRED

CONCRETE COLUMNS

AND REINSTALLED)

(TO BE REMOVED

CURTAIN WALL

DOWNSTREAM

UPSTREAM AND

TO BE REPLACED

CONCRETE BEAMS

A1

SCALE: 3/16" = 1'-0"

ELEVATION OF BRIDGE GIRDER (LOOKING UPSTREAM)

DS: AEC_Screen_FullSize.dscriptPD: AEC_pdf.pltcfg

2023/07/14

2023/07/14

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SB-304

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2 3 4 5 6 7 8 9 10

SHEET ID

(FIXED END)

C/L GRIDER SUPPORT

FLOW

(FIXED END)

C/L GIRDER SUPPORT

(EXPANSION END)

C/L GIRDER SUPPORT

(EXPANSION END)

C/L GIRDER SUPPORT

BRIDGE GIRDER

EXISTING

OF THE PIER BEING REHABILITED)

/LDETAIL IS SYMMETRICAL ABOUT THE C

C/L PIER (SUPPORT CABLE

EL 471.00

EL 466.83

EL 483.00

EL 471.00

EL 456.00

SILL EL. 424.0

EL 456.00

EL. 454.00

EL. 456.00

EL. 471.00

EL. 483.00

B/GATE EL 459.80

(IN SLUNG POSITION)

APPROXIMATE WEIGHT=168,000 lbs

2-BRIDGE GIRDERS AND STEEL DECK

UPPER SHOE

LOWER SHOE

TEMPORARY SUPPORT STRUCTURE (SB-301)

WATER EL. VARIES

EXISTING CONCRETE PIER EXISTING CONCRETE PIER

ON UPSTREAM FACE OF GATE

CHAIN CONNECTION IS

TAINTER GATE

EL 467.72

CHAIN PIN

EXISTING CONCRETE PIER

COLUMN (TYP.)

EXISTING CONC.

BRIDGE GIRDER

EXISTING

BRIDGE GIRDER

EXISTING

STEEL RAIL STEEL DECK

END ELEVATION

(SUPPORT STRUCTURE NOT SHOWN)

8'0 4' 16'

BE AVAILABLE TO THE CONTRACTOR FOR USE

GOVERNMENT OWNED SUPPORT CABLE WILL NOT

AND SUPPLIED BY THE CONTRACTOR, EXISTING

OTHER MEANS OF SUPPORT MUST BE DESIGNED

REPAIRED (SEE SB-303). SUPPORT CABLE OR

GIRDER OPPOSITE FROM THE PIER BEING

GATE SUPPORT ATTACHED AT END OF BRIDGE

1 1

SUPPORT PLAN

AND INCLUDED IN CONTRACTOR'S TAINTER GATE

MUST BE ANALYZED FOR CONSTRUCTION LOADS

CONTRACTOR. IF USED, EXISTING CONNECTIONS

EXISTING CABLE CONNECTIONS MAY BE USED BY

®of Engineers

US Army Corps

U .S

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REINSTALL UPSTREAM AND DOWNSTREAM PRECAST CURTAIN WALLS. 9.

REMOVE TEMPORARY SUPPORT STRUCTURE AND JACKS.8.

BRIDGE GIRDER SUPPORTED ON NEW CONCRETE, REMOVE GIRDER SUPPORT BOLTS AND RELEASE JACKS.7.

LOWER JACK, ALIGN AND FIT UPPER SHOE INTO LOWER SHOE AND REINSTALL BEARING PIN.6.

BRIDGE GIRDER AND TEMPORARY STRUCTURE SUPPORTED ON JACKS, LOOSEN, AND REMOVE BOLTS FROM TEMPORARY CONNECTION.5.

ALIGN LOWER SHOE OVER GROUT PAD AND ANCHOR BOLT SLEEVES EMBEDDED IN NEW CONCRETE. INSERT ANCHORS AND BOLT SHOE IN POSITION.4.

REPOSITION JACKS UNDER TEMPORARY STRUCTURE AND LOOSEN COLUMN BOLTS. JACK TO ALLOW ALIGNMENT OF SHOES.3.

BRIDGE GIRDER STILL SUPPORTED BY TEMPORARY SUPPORT STRUCTURE.2.

CONCRETE REPAIR COMPLETED (SEE NOTE 2).1.

REMOVAL OF TEMPORARY SUPPORT STRUCTURE*

SEE SB-303 FOR PLAN NOTES.1.

PLAN NOTES

OFFICER.

SUPPORT STRUCTURE. THE CONTRACTOR SHALL BE SOLEY RESPONSIBLE FOR THE ACTUAL PROCEDURE USED, WHICH SHALL BE APPROVED BY THE CONTRACTING

THESE ARE SUGGESTED GUIDELINES FOR GENERAL PROCEDURES TO BE USED BY THE CONTRACTOR FOR THE INSTALLATION AND REMOVAL OF THE TEMPORARY *

11. REMOVE EXISTING CONCRETE BRIDGE SUPPORT STRUCTURE AND REPLACE WITH NEW CONCRETE.

BURN OFF ANCHOR BOLTS. REMOVE LOWER SHOE AND STORE FOR LATER INSTALLATION.10.

CHIP CONCRETE UNDER LOWER SHOE TO EXPOSE FOUR ANCHOR BOLTS.9.

GROUT THE BASE PLATES AND BOLT COLUMNS IN PLACE. WHEN COMPLETED, LOWER JACKS AND REMOVE.8.

OF COLUMN BASE PLATES.

BRIDGE GIRDER SUPPORTED ON JACKS. REMOVE PINS FROM SHOE AND STORE PINS FOR REUSE. ONCE REMOVED, JACK ADDITIONAL 1/4" + TO ALLOW GROUTING 7.

JACK UP TEMPORARY SUPPORT AND BRIDGE GIRDER TO BREAK BEARING OF UPPER SHOE ON PIN.6.

POSITION JACKS UNDER TEMPORARY SUPPORT.5.

TORQUE BOLTS IN CONNECTION. FULLY TORQUED AT FIXED END, ALLOW FOR MOVEMENT AT EXPANSION END.4.

FIELD WELD CONNECTION TO FACE OF BRIDGE GIRDER.3.

ALIGN TEMPORARY SUPPORT CONNECTION WITH FACE OF BRIDGE GIRDER BY ADJUSTING WITH SLOTTED HOLES IN THE CONNECTION.2.

PLACE AND ALIGN TEMPORARY SUPPORT STRUCTURE. PLACE COLUMNS WITH LEVELING NUTS.1.

INSTALLATION OF TEMPORARY SUPPORT STRUCTURE*

FOR INFORMATION ONLY