20-002770 Mott CC_HJ_Shoring_DWGS_10.13.2025.pdf

PDF 3 MB Posted

Attached to
Ramps H & J Shoring
Solicitation number
ITB-KD-1025-RampsH&J-Shoring
Issued by
Genesee County, Michigan

About this file

These construction documents detail a temporary shoring and barricades project for Deck H and Deck J at Mott Community College in Flint, Michigan, prepared by Walker Consultants in October 2025. The project involves installing temporary structural support and safety barriers across six parking deck levels, with specific focus on addressing structurally deficient post-tensioned concrete beams and floor slabs. The work is limited to temporary shoring installation and does not involve changes to occupancy, use, or egress. The project will be completed in accordance with the 2021 International Building Code and NFPA 241 fire safety standards, with work limited to 7 am - 7 pm, Monday through Friday.

The project includes critical structural safety considerations, notably that the roof level (Levels 5 & 6) has reduced live load capacity of 30 psf, with strict barricading requirements to prevent overloading. The temporary shoring is based on engineering surveys conducted in October 2025, with an allowable soil bearing capacity of 1,500 psf. The documentation emphasizes that this is a temporary solution, with permanent repairs recommended and regular monitoring required. The contractor will be responsible for carefully installing steel post shores, maintaining precise spacing and load distribution, and exercising extreme caution to avoid damaging post-tensioned tendons during the work.

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DRAWING INDEX

NO: SHEET NAME

GENERAL

G-000 COVER SHEET AND SITE LOCATION MAP

G-001 GENERAL NOTES, LEGENDS, & WORK ITEM SCHEDULE

RESTORATION

R-101 1ST & 2ND LEVEL PLAN

R-102 3RD & 4TH LEVEL PLAN

R-103 5TH & 6TH LEVEL PLAN

R-501 REPAIR DETAILS

COPYRIGHT © 2025. ALL RIGHTS RESERVED. NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FORM OR BY ANY MEANS WITHOUT PERMISSION FROM WALKER CONSULTANTS.

ENGINEER

525 Avis Dr, Suite 1 Ann Arbor, MI 48108

734.663.1070 Ph

www.walkerconsultants.com

FLINT, MI

MOTT COMMUNITY COLLEGE

RAMPS H&J SHORING & BARRICADES

OCTOBER, 13, 2025

BIDDING & CONSTRUCTION

WALKER PROJECT NO: 20-002770.00

PROJECT SITE

OWNER

DECK J

DECK H

GENERAL NOTES

A. CONSTRUCTION

1. This set of Construction Documents is for temporary shoring and barricades installation only. There are no changes to use, egress, occupancy, or area.

2. The Contractor shall obtain all necessary permits to complete the work outlined in these documents.

3. The Contractor shall perform Work in accordance with all applicable Federal, State, and Local Codes, Laws and Ordinances, The Contractor shall promptly notify the Engineer of any known nonconformity with the intent of the Construction Documents and as-built conditions to the applicable Codes, Laws or Ordinances and request clarification from the Engineer prior to proceeding with Work which is deemed in conflict with the applicable Codes, Laws or Ordinances.

4. The project shall be completed in accordance with the 2021 International Building Code.

5. Fire Safety during construction, alteration or demolition shall comply with the latest edition of NFPA 241.

6. Prior to preparing the bid and fabrication of any material or placement of concrete, field verify all existing dimensions and conditions shown on Drawings. Report all discrepancies to the Engineer immediately.

7. Do Not Scale Drawings.

8. Walker will not have control over or charge of and will not be responsible for construction means, methods, techniques, sequences or procedures, or for safety precautions and safety programs in connection with the project. Since these are the responsibility of others, Walker will not be responsible for the contractor's schedules or failure to carry out the project in accordance with Contract Documents. Walker will not have control over or charge of acts or omissions of the contractor, sub-contractors, or their agents or employees, or of other non-Walker persons performing portions of the project.

9. The presence of Walker or testing agency at the jobsite does not relieve contractor of the obligation to perform the work in accordance with the contract documents.

10. Shoring shall be installed snug tight and attached/anchored to prevent movement or loosening.

B. CONSTRUCTION DOCUMENTS

1. Construction Documents entitled “Mott Community College — Ramps H&J Shoring and Barricades” includes these Drawings and separately bound Specifications. For purposes of performing the work, Drawings and Specifications shall be a single unit.

2. The extent of repair areas shown on the drawings indicates Engineer’s estimates only. The estimated unit quantities included in the bid documents are based on Engineer’s estimated units for bid purposes only. The Contractor is responsible for determining the actual extent and locations of repair areas. The actual repair quantities shall be verified and agreed upon by the Engineer prior to commencing the repair Work.

3. Work shall be performed in coordination with construction observations by the Engineer to determine if the exposed existing construction is as assumed in the design.

4. Dimensions shown on plans are based on original construction documents.

5. Refer to Specifications for scope, description and requirements of Work.

C. DESIGN ASSUMPTIONS

1. The roof level (Levels 5 & 6) beams are assumed to be structurally deficient based on results of representative test openings. No live load allowed on roof level (Levels 5 & 6) until shoring installation is complete.

2. The allowable live load capacity of the roof level (Levels 5 & 6) is 30 psf based on results of test openings performed in September 2025. Staggered space closures are necessary to maintain this reduced live load. The barricading layout shown on R-103 accomplishes this. Roof level barricades shall be maintained at all times, either by Owner or Contractor, to prevent parking and overloading of slabs.

3. Allowable soil bearing capacity is 1,500 psf. Shoring loads at grade shall be adequately distributed so as not to exceed this limit.

4. Shoring design is based on conditions in the structure as of October, 2025 during the engineer's survey. If new deterioration conditions develop or existing deterioration becomes more severe, additional shoring shall be added.

5. This shoring is considered temporary. Permanent repairs are required and recommended. Regular monitoring and adjusting/repairing of the temporary shoring is recommended until permanent repairs are completed.

6. During construction of permanent repairs, it is the responsibility of the repair/construction contractor and the repair/construction designer to verify the suitability of and supplement any existing temporary shoring/bracing that will be delegated to and utilized during construction activities. Shoring/bracing during construction needs to consider changes to the shoring/bracing conditions throughout construction and the application of construction loads. Shoring/bracing during construction also needs to consider differing deterioration conditions from that present during installation of the temporary shoring contained in these construction documents, among other things.

D. EXISTING SERVICES AND UTILITIES

1. Contractor shall review all existing conditions to determine all Electrical and Mechanical services and Utilities affected by the repair work. Make necessary temporary connections to maintain existing services to all areas of the parking garage or other areas (Not in Contract) affected by the work. The contractor shall submit the methods and schedule of connections for the owner’s approval prior to commencement.

E. DETAILS AND SYMBOLS

1. Repair details are shown on drawing series R-501 and are generally identified as two-digit (X.X) details.

2. Where the Work Item bubble is noted “TYP,” it means the Work Item occurs at all locations where the applicable deterioration or designation symbol occurs on that plan.

3. Where two or more Work Item Bubbles are grouped together, it means any or all of the referenced work items may be applicable. Coordination of Work Items is Contractor’s responsibility.

4. See Work Item specification (020010) for additional information regarding details.

F. CONSTRUCTION PHASING, SEQUENCING AND TRAFFIC MAINTENANCE

1. Work sequence shall be coordinated with the Owner’s representative and all identified project representatives.

2. Work hours are 7 am - 7 pm, Monday - Friday. The Contractor shall verify work hours with the Owner. Contractor shall coordinate off-hours, weekend, and holiday Work with Owner at least 72 hours in advance.

3. Contractor shall be responsible to lockout access to the structure after all entries or exits by contractor's laborers or material deliveries so that structure is maintained continuously locked to unauthorized public access.

4. Owner will continue to use structure during shoring/barricading installation.

Contractor shall phase/perform work so that no more than 50 spaces are closed beyond those scheduled to be barricaded as shown on the Drawings.

G. WORKSITE REQUIREMENTS

1. Trash and debris shall be removed from the site on a daily basis, including all loose concrete removals required for shoring installation.

2. The Contractor is responsible for protecting all adjacent structures, landscaping, and other surfaces and items which could be affected by the Work.

3. All lights, signs, and other features and property damaged during construction shall be replaced / repaired at no cost to Owner.

4. Do not place loads on the structure or store demolished materials on the structure in a manner that will exceed shoring design loads.

H. UNIT PRICE WORK QUANTITY ADMINISTRATION

1. Contractor is responsible for maintaining accurate documentation and submission in a timely fashion of measured repair quantities for all Unit Price Work. These quantities shall be reconciled with the owner or their representative weekly.

2. Contractor shall maintain a Record Drawing showing the general location, size, and associated Work Item of each repair. Record Drawing shall include repair quantity for each repair location or be keyed to a spreadsheet/quantity documentation sheet with the quantities.

3. See section 020010 “Work Items” for additional administration requirements for each specific Work Item.

I. MISCELLANEOUS CONCRETE SITE REQUIREMENTS

1. The following requirements apply to concrete and asphalt sawcutting and other similar work (cutting, grinding, drilling, etc):

a. Discharge of water, dust, or debris from concrete work to storm or sanitary is prohibited.

b. Storm drains must be protected from dust and debris. Provide sedimentation and surface deposition mitigation plan.

c. Any water used during concrete work (including sweeping and sawcutting) must be contained and collected for proper disposal. Suggested controls include wet vacuum, absorbants.

d. Good housekeeping practices must be employed at the jobsite. Minimize dust.

J. ABBREVIATIONS

1. APPROX = Approximately

2. AGG = Aggregate

3. BM = Beam

4. BOT = Bottom

5. CIP = Cast in Place

6. CFV = Contractor Field Verify

7. CJ = Construction Joint/Control Joint

8. CLR = Clearance

9. COL = Column

10. CONC = Concrete

11. CY = Cubic Yard

12. DET = Detail

13. EA = Each

14. E.E. = Each End

15. E.S. = Each Side

16. EMBED = Embedment length

17. EJ = Expansion Joint

18. EXIST = Existing

19. FIN = Finished

20. FL = Floor

21. IN = Inches

22. INC = Incidental

23. LF = Linear Foot

24. LS = Lump Sum

25. MAX = Maximum

26. MIN = Minimum

27. N/A = Not Applicable

28. OC = On Center

29. OH = Opposite Hand

30. P/C = Precast

31. PSF = Pounds Per Square Foot

32. PSI = Pounds Per Square Inch

33. P-T = Post-Tensioned

34. REINF = Reinforcement

35. REQ’D = Required

36. SF = Square Foot

37. SIM = Similar

38. SOG = Slab on Ground

39. SPEC = Specification

40. SUPT = Supported

41. T = Top

42. TAR = Typical as Required

43. TYP = Typical

44. UN or UNO = Unless Noted Otherwise

45. VIF = Verify in Field

46. WI = Work Item

47. WWR = Welded Wire Reinforcement

CHECKED BY:

SHEET TITLE:

DRAWN BY:

PROJECT NO:

COPYRIGHT © 2025. ALL RIGHTS

RESERVED. NO PART OF THIS

DOCUMENT MAY BE REPRODUCED IN

ANY FORM OR BY ANY MEANS

WITHOUT PERMISSION FROM

WALKER CONSULTANTS, INC.

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20-002770.00

GENERAL NOTES,

LEGENDS, & WORK

ITEM SCHEDULE

G-001

IS

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D A

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D E

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1615141312111098

NO

RAMP

17 18 19 20 21 22 23 24 272625

A

B

D

C

11'-11" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0"

909090 90 90 90

909090909090

909090 90 90 90

909090909090 90

1ST LEVEL

2ND LEVEL

R-501

U P

-T

O -2

D O

W

3-

TO

-2

D O

W N

2-TO

-1

U P

2-TO

-390

NOTE 3

SLAB ON GRADE CONCRETE

SLAB ON GRADE CONCRETE

TYP

PT BEAMS ABOVE

SHOWN DASHED

1R -5

NOTE 3NOTE 3

T Y

P

PT BEAMS ABOVE

SHOWN DASHED

90 90 9090 90 9090 90

90 90 9090 90 9090

90 90 90

9090909090909090

9090909090909090 90

LEVEL 1

LEVEL 2

D O

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-1

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-3

U P

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-2

NOTE 3 NOTE 3 NOTE 3 NOTE 3

PT BEAM ABOVE

SHOWN DASHED

PT BEAM ABOVE

SHOWN DASHED

SLAB ON GRADE

SLAB ON GRADE

TRUE NORTH

N

SHEET NOTES

CHECKED BY:

SHEET TITLE:

DRAWN BY:

PROJECT NO:

COPYRIGHT © 2025. ALL RIGHTS

RESERVED. NO PART OF THIS

DOCUMENT MAY BE REPRODUCED IN

ANY FORM OR BY ANY MEANS

WITHOUT PERMISSION FROM

WALKER CONSULTANTS, INC.

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1ST & 2ND LEVEL

PLAN

R-101

3/64" = 1'-0"2

DECK H - 1ST & 2ND LEVEL PLAN

REFERENCES:

1. GENERAL NOTES AND WI R-001

SCHEDULE

2. FLOOR PLANS R-100 SERIES

3. REPAIR DETAILS R-500 SERIES

LEGEND:

= END BEARING SHORING, SEE NOTE 1

= SPACE CLOSED

= EXISTING EXPANSION JOINT

GENERAL NOTES:

1. # LISTED IS THE REQUIRED CAPACITY OF THE SHORE

GROUP (KIPS).

2. SHORING SHALL BE INSTALLED ON THE LEVEL

SHOWN TO SUPPORT THE BEAM ABOVE.

3. INCREASED OR DECREASED SHORE CAPACITY MAY

BE NEEDED DEPENDING ON RESULTS OF TEST

OPENING PERFORMED BY OTHERS. UNKNOWN AT

TIME OF BID. CONFIRM FINAL SHORE CAPACITY

BASE UPON RESULTS OF TEST OPENINGS, IN FIELD

WITH ENGINEER DURING CONSTRUCTION.

4. RELOCATE CLOSED ADA SPACE. COORDINATE WITH

OWNER.

5. LEVEL 5 & 6: INSTALL STEEL CATTLEGATE

BARRICADE AND "NO PARKING" SIGNAGE AT FRONT

OF PARKING STALLS WHERE SPACES ARE SHOWN

TO BE CLOSED. SPACE CLOSURES AT ROOF ARE

NECESSARY TO MAINTAIN ROOF SLAB AT 30 PSF

ALLOWABLE SLAB CAPACITY.

3/64" = 1'-0"1

DECK J - 1ST & 2ND LEVEL PLAN

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CAUTION NOTE:

THE FLOOR SLAB HAS POST-TENSIONING TENDONS. THESE TENDONS ARE

NEAR THE FLOOR SURFACE AT SPALLS AND DELAMINATIONS. THE

CONTRACTOR SHALL EXERCISE EXTREME CAUTION WHEN DRILLING OR

CHIPPING SO AS NOT TO DAMAGE EXISTING TENDONS OR TENDON SHEATHS.

TENDONS MAY BREAK WITH EXPLOSIVE FORCE WHEN CUT.

1615141312111098

CONT. A

IR W

ELL

CONT. AIR WELL

17 18 19 20 21 22 23 24 272625

A

B

D

C

11'-11" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0" 33'-0"

3RD LEVEL

4TH LEVEL

909090 90 90 90 90

90 90 90 90 90 90

9090 90 90 90

90 90 90 90 90 90

D O

-T

O -2

U P

-T

O -4

UP

2-TO-3

D O

W N

4-TO

-3

U P

4-TO

-5

LIGHT

WELL

LIGHT

WELL

ENTRY

EXIT

EXISTING

PT DECK

EXISTING

PT DECK

NOTE 3

1R -5

NOTE 3

PT BEAMS ABOVE

SHOWN DASHED

R-501

TYP

T Y

PPT BEAMS ABOVE

SHOWN DASHED

PT BEAMS ABOVE

SHOWN DASHED

9090909090909090

9090909090909090 90

LEVEL 3

LEVEL 4

SAFETY

BOOTH

ENTRY EXIT

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CONTINUOUS AIR/LIGHT WELL

LIGHT

WELL

90 90 90 90 90 90 90

90 90 90 90 90 90 90 9090

UP

2-TO-3

90 90

NOTE 3 NOTE 3

NOTE 3 NOTE 3

PT BEAM ABOVE

SHOWN DASHED

PT BEAM ABOVE

SHOWN DASHEDPT CONC. DECK

PT CONC. DECK

3/64" = 1'-0"2

DECK H - 3RD & 4TH LEVEL PLAN

TRUE NORTH

N

SHEET NOTES

CHECKED BY:

SHEET TITLE:

DRAWN BY:

PROJECT NO:

COPYRIGHT © 2025. ALL RIGHTS

RESERVED. NO PART OF THIS

DOCUMENT MAY BE REPRODUCED IN

ANY FORM OR BY ANY MEANS

WITHOUT PERMISSION FROM

WALKER CONSULTANTS, INC.

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3RD & 4TH LEVEL

PLAN

R-102

REFERENCES:

1. GENERAL NOTES AND WI R-001

SCHEDULE

2. FLOOR PLANS R-100 SERIES

3. REPAIR DETAILS R-500 SERIES

LEGEND:

= END BEARING SHORING, SEE NOTE 1

= SPACE CLOSED

= EXISTING EXPANSION JOINT

GENERAL NOTES:

1. # LISTED IS THE REQUIRED CAPACITY OF THE SHORE

GROUP (KIPS).

2. SHORING SHALL BE INSTALLED ON THE LEVEL

SHOWN TO SUPPORT THE BEAM ABOVE.

3. INCREASED OR DECREASED SHORE CAPACITY MAY

BE NEEDED DEPENDING ON RESULTS OF TEST

OPENING PERFORMED BY OTHERS. UNKNOWN AT

TIME OF BID. CONFIRM FINAL SHORE CAPACITY

BASE UPON RESULTS OF TEST OPENINGS, IN FIELD

WITH ENGINEER DURING CONSTRUCTION.

4. RELOCATE CLOSED ADA SPACE. COORDINATE WITH

OWNER.

5. LEVEL 5 & 6: INSTALL STEEL CATTLEGATE

BARRICADE AND "NO PARKING" SIGNAGE AT FRONT

OF PARKING STALLS WHERE SPACES ARE SHOWN

TO BE CLOSED. SPACE CLOSURES AT ROOF ARE

NECESSARY TO MAINTAIN ROOF SLAB AT 30 PSF

ALLOWABLE SLAB CAPACITY.

3/64" = 1'-0"1

DECK J - 3RD & 4TH LEVEL PLAN

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/1

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CAUTION NOTE:

THE FLOOR SLAB HAS POST-TENSIONING TENDONS. THESE TENDONS ARE

NEAR THE FLOOR SURFACE AT SPALLS AND DELAMINATIONS. THE

CONTRACTOR SHALL EXERCISE EXTREME CAUTION WHEN DRILLING OR

CHIPPING SO AS NOT TO DAMAGE EXISTING TENDONS OR TENDON SHEATHS.

17 18 19 20 21 22 23 24 272625

A

B

D

C

1615141312111098

CONT. A

IR W

ELL

CONT. AIR WELL

UP

4-TO-5

D O

W N

6-TO

-5

U P

5-

TO

-6

DO

W

N

5-T O

-4

LIGHT

WELL

5TH LEVEL

6TH LEVEL

NOTE 4 NOTE 4NOTE 4

PT BEAM ABOVE

SHOWN DASHED

PT BEAM BELOW

SHOWN DASHED

PT CONC. DECK

PT CONC. DECK

5TH LEVEL

6TH LEVEL

D O

-T

O -4

U P

-T

O -6

UP

4-TO-5

D O

W N

6-TO

-5

PT CONCRETE DECK

PT CONCRETE DECK

LIGHT

WELL

LIGHT

WELL

BEAMS BELOW

(SHOWN DASHED)

NOTE 4

NOTE 4

1R -5

T Y

P

BEAMS BELOW

(SHOWN DASHED)

TRUE NORTH

N

SHEET NOTES

CHECKED BY:

SHEET TITLE:

DRAWN BY:

PROJECT NO:

COPYRIGHT © 2025. ALL RIGHTS

RESERVED. NO PART OF THIS

DOCUMENT MAY BE REPRODUCED IN

ANY FORM OR BY ANY MEANS

WITHOUT PERMISSION FROM

WALKER CONSULTANTS, INC.

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20-002770.00

5TH & 6TH LEVEL

PLAN

R-103

REFERENCES:

1. GENERAL NOTES AND WI R-001

SCHEDULE

2. FLOOR PLANS R-100 SERIES

3. REPAIR DETAILS R-500 SERIES

LEGEND:

= END BEARING SHORING, SEE NOTE 1

= SPACE CLOSED

= EXISTING EXPANSION JOINT

GENERAL NOTES:

1. # LISTED IS THE REQUIRED CAPACITY OF THE SHORE

GROUP (KIPS).

2. SHORING SHALL BE INSTALLED ON THE LEVEL

SHOWN TO SUPPORT THE BEAM ABOVE.

3. INCREASED OR DECREASED SHORE CAPACITY MAY

BE NEEDED DEPENDING ON RESULTS OF TEST

OPENING PERFORMED BY OTHERS. UNKNOWN AT

TIME OF BID. CONFIRM FINAL SHORE CAPACITY

BASE UPON RESULTS OF TEST OPENINGS, IN FIELD

WITH ENGINEER DURING CONSTRUCTION.

4. RELOCATE CLOSED ADA SPACE. COORDINATE WITH

OWNER.

5. LEVEL 5 & 6: INSTALL STEEL CATTLEGATE

BARRICADE AND "NO PARKING" SIGNAGE AT FRONT

OF PARKING STALLS WHERE SPACES ARE SHOWN

TO BE CLOSED. SPACE CLOSURES AT ROOF ARE

NECESSARY TO MAINTAIN ROOF SLAB AT 30 PSF

ALLOWABLE SLAB CAPACITY.

3/64" = 1'-0"1

DECK J - 5TH & 6TH LEVEL PLAN

3/64" = 1'-0"2

DECK H - 5TH & 6TH LEVEL PLAN

IS

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/1

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CAUTION NOTE:

THE FLOOR SLAB HAS POST-TENSIONING TENDONS. THESE TENDONS ARE

NEAR THE FLOOR SURFACE AT SPALLS AND DELAMINATIONS. THE

CONTRACTOR SHALL EXERCISE EXTREME CAUTION WHEN DRILLING OR

CHIPPING SO AS NOT TO DAMAGE EXISTING TENDONS OR TENDON SHEATHS.

BELOW

8'-0" 8'-0"

R-501

R-501

(V

IF

TWO ROWS OF (5) STEEL POST SHORE,

RATED FOR 9-KIP CAPACITY AT

REQUIRED EXTENSION HEIGHT,

TYPICAL. SEE PLAN SHEETS FOR

REQUIRED CAPACITY OF GROUP.

PT BEAM

EMBEDDED BEAM POST-TENSIONING TENDONS

UNDERSIDE OF

CONCRETE FLOOR

SLAB BEYOND

T Y

P

IC

A L

CLOSE OFF SPACE W/ STEEL "CATTLE-GATE"

BARRICADES. PROVIDE "NO PARKING" SIGN

ON CATTLEGATE. CATTLEGATE DOES NOT

NEED TO BE ANCHORED TO FLOOR.

5 - SHORE POSTS @ 6" O.C. EACH

SIDE OF BEAM CTR LINE. 10 TOTAL

SHORES W/ 90-KIP TOTAL CAPACITY

CENTER GROUP 8'-0" FROM COL LINE

EXISTING CONCRETE COLUMN

EXISTING STRIPING

COLUMN LINES (SEE PLAN)

FACE OF PT BEAM ABOVE

9" 4'-6" 9"

C L

TYP

4'-6"

C L

C L

9" +/- 9" +/-

EXIST. PT CONCRETE BEAM

TWO ROWS OF (5) STEEL POST SHORES,

RATED FOR 9-KIP CAPACITY AT

REQUIRED EXTENSION HEIGHT, TYPICAL.

SEE PLAN SHEETS FOR REQUIRED

CAPACITY OF GROUP.

EXIST. CONCRETE COLUMN BEYOND

EXIST. PT CONCRETE DECK

(TYPICAL PT BEAM)

6'-0"

EXIST. PT BEAM TENDONS.

LOCATE TENDONS PRIOR

TO ANCHORING

TWO ROWS OF (5) STEEL

POST SHORES, RATED FOR

9-KIP CAPACITY AT

REQUIRED EXTENSION

HEIGHT, TYPICAL. SEE PLAN

SHEETS FOR REQUIRED

CAPACITY OF GROUP.

NOTE:

1. ANY LOOSE, DELAMINATED, OR HANGING CONCRETE TO BE REMOVED PRIOR TO INSTALLING SHORING. DO NOT

REMOVE SOUND CONCRETE. DO NOT CUT OR DAMAGE EXISTING POST-TENSIONED TENDONS. INSTALL POST

SHORES ON SOLID CONCRETE AFTER ALL LOOSE MATERIAL IS REMOVED

2. PACK GROUT TO PROVIDE EVEN BEARING SURFACE AT CONCRETE REMOVAL AREAS.

TO COL CTR LINE

8'-0" CTR OF SHORE GROUP

NOTE 1

NOTE 2

TYP

6"

C L

C L

EXIST. CONC. COLUMN

EXIST. CONC. BEAM

UNDERSIDE OF CONC.

FLOOR SLAB BEYOND

CONC. FLOOR SLAB

C L

NOTE:

1. CONSTRUCT CRIBBAGE OF SUFFICIENT AREA TO DISTRIBUTE ALL IMPOSED SHORING LOADS

EVENLY TO SLAB-ON-GRADE BELOW SO THAT DISPERSED LOAD DOES NOT EXCEED 1,500 PSF.

SOIL

POST SHORE, TYP

CROSS-STACKED 2X4

WOOD SPREADER BEAMS

EXISTING SLAB ON

GRADE

SECURELY ANCHOR

POST SHORE TO WOOD

SPREADER BEAMS

1. THE SHORING LAYOUT SHOWN ON THIS DETAIL SHEET IS FOR THE TYPICAL 90-KIP CAPACITY SHORE GROUP. WHERE INCREASED OR DECREASED SHORE CAPACITY IS REQUIRED, CONTRACTOR SHALL MODIFY THE NUMBER OF SHORE POSTS ACCORDINGLY, FOLLOWING THE SAME GENERAL SPACING/PLACEMENT REQUIREMENTS AS FOR THE TYPICAL

SHORE GROUP.

2. INSTALL SHORES TIGHT TO FLOOR SLAB AND BOTTOM OF CONCRETE BEAM. WHERE SPALLING PRODUCES AN UNEVEN BEARING SURFACE (WHETHER FROM CONTRACTOR’S REMOVAL OF LOOSE/DELAMINATED CONCRETE OR FROM EXISTING CONCRETE SPALLS), PACK GROUT AT SHORE POST BEARING AREA TO PROVIDE UNIFORM BEARING SURFACE. FOR BIDDING PURPOSES, CONTRACTOR MAY ASSUME THIS WILL BE REQUIRED AT APPROXIMATELY 2-5%

OF SHORE LOCATIONS (VIF).

3. SHORING WILL BE REQUIRED ON MULTIPLE LEVELS. INSTALL SHORING CONCENTRIC FROM LEVEL TO LEVEL.

4. SHORING SHALL BE INSTALLED SNUG TIGHT AND ATTACHED/ANCHORED TO PREVENT MOVEMENT OR LOOSENING.

5. BEAMS AND FLOOR SLABS CONTAIN LIVE POST-TENSIONED TENDONS. CONTRACTOR SHALL EXERCISE EXTREME CAUTION WHEN DRILLING OR REMOVING LOOSE CONCRETE SO AS NOT TO DAMAGE TENDONS. TENDONS MAY

BREAK WITH EXPLOSIVE FORCE WHEN DAMAGED.

CHECKED BY:

SHEET TITLE:

DRAWN BY:

PROJECT NO:

COPYRIGHT © 2025. ALL RIGHTS

RESERVED. NO PART OF THIS

DOCUMENT MAY BE REPRODUCED IN

ANY FORM OR BY ANY MEANS

WITHOUT PERMISSION FROM

WALKER CONSULTANTS, INC.

G re e n s p o in t P a rk w a y S u it e

H o ff m a n E s ta te s

IL

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20-002770.00

REPAIR DETAILS

R-501

3/8" = 1'-0"1

TYPICAL BEAM SHORING SECTION

1/2" = 1'-0"2

ENLARGED PLAN DETAIL

1" = 1'-0"3

TYPICAL BEAM SHORING - SECTION

1" = 1'-0"4

TYPICAL BEAM SHORING

6. PROVIDE WORKING LOAD CAPACITY SHOWN ON PLAN SHEETS AT EACH LOCATION

7. DISTRIBUTE LOAD TO GRADE SO THAT THE BEARING PRESSURE IS LIMITED TO 1,500 PSF. SEE DETAIL 5/R-501 FOR

TYPICAL CRIBBAGE REQUIREMENTS.

8. TYPICAL SHORING EXTENSION HEIGHT (ASSUMED FROM TOP OF SLAB TO BOTTOM OF BEAM) IS APPROXIMATELY 8'-8", AS SHOWN ON DETAL 2 / R-501. CONTRACTOR SHALL VERIFY ON A CASE-BY-CASE BASIS.

9. THE ROOF LEVEL (LEVELS 5 & 6) BEAMS ARE ASSUMED TO BE STRUCTURALLY DEFICIENT BASED ON RESULTS OF REPRESENTATIVE TEST OPENINGS. NO LIVE LOAD ALLOWED ON ROOF LEVEL (LEVELS 5 & 6) UNTIL SHORING

INSTALLATION IS COMPLETE.

10. SHORING DESIGN IS BASED ON CONDITIONS IN THE STRUCTURE AS OF OCTOBER, 2025 DURING THE ENGINEER'S SURVEY. IF NEW DETERIORATION CONDITIONS DEVELOP OR EXISTING DETERIORATION BECOMES MORE SEVERE, ADDITIONAL SHORING SHALL BE ADDED.

GENERAL SHORING NOTES

IS

S

U E

M A

R K

D A

T E

D E

S C

R

IP

T

IO

N

/1

/2

B

ID

D

IN

G

A N

D C

O N

S T

R U

C T

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N

1" = 1'-0"5

TYPICAL CRIBBAGE AT SLAB-ON-GRADE

Sheets
G-000 - COVER SHEET AND SITE LOCATION MAP
G-001 - GENERAL NOTES, LEGENDS, & WORK ITEM SCHEDULE
R-101 - 1ST & 2ND LEVEL PLAN
R-102 - 3RD & 4TH LEVEL PLAN
R-103 - 5TH & 6TH LEVEL PLAN
R-501 - REPAIR DETAILS

File details come from the government source that posted it. Updated .