RFQ946400-01 - IDAS CCParking SE StairRepairs - Drawings.pdf

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CC PARKING GARAGE SE STAIR REPAIR

IDAS PROJECT #: 9464.00

EAST GRAND AND PENNSYLVANIA AVENUE, DES MOINES,

IOWA 50309

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PROJECT LOCATION

SHEET LIST

SHEET NAME

G000 COVER SHEET

S000 STRUCTURAL GENERAL INFORMATION & DETAILS

S101 LEVEL B REPAIRS

S102 LEVEL A REPAIRS

S103 LEVEL 1 REPAIRS

S104 LEVEL 2 REPAIRS

S105 LEVEL 3 REPAIRS

S106 LEVEL 4 REPAIRS

S110 ALTERNATE 1 NW STAIR TOWER LEVEL 1 AND 2 REPAIR PAGES, SHEETS OR DIVISIONS COVERED BY THIS SEAL

MY LICENSE RENEWAL DATE IS DECEMBER 31,

I HEREBY CERTIFY THAT THIS ENGINEERING DOCUMENT WAS

PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I

AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS

OF THE STATE OF IOWA.

PRINTED OR TYPED NAME

SIGNATURE DATE

LICENSE NUMBER

Christopher R. Marvin

ALL

P27417

STRUCTURAL ENGINEER

5-9-2025

1.

2.

3.

4.

5.

6.

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B.

C.

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17.

THE GENERAL STRUCTURAL NOTES ARE INTENDED TO SUPPLEMENT THE DRAWINGS AND

SPECIFICATIONS. SHOULD CONFLICTS EXIST BETWEEN THESE DRAWINGS AND THE

SPECIFICATIONS NOTIFY THE ENGINEER OF ANY SUCH CONFLICTS.

STRUCTURAL DRAWINGS SHALL BE USED IN CONJUNCTION WITH ALL PROJECT DRAWINGS AND

SPECIFICATIONS. REFER TO ALL DRAWINGS FOR THE COORDINATION OF THE WORK IN THIS

PROJECT.

THE INTENT OF THESE PLANS AND NOTES IS TO PRESENT THE PROJECT REQUIREMENTS.

MAJOR DETAILS HAVE BEEN SHOWN ON THE DRAWINGS. HOWEVER, CERTAIN MINOR DETAILS

MUST BE WORKED OUT IN THE FIELD OR SHOP DRAWING PROCESS BY THE CONTRACTOR.

UNLESS NOTED OTHERWISE, DETAILS SHOWN ON DRAWINGS ARE TO BE CONSIDERED TYPICAL

FOR ALL SIMILAR CONDITIONS.

IT IS SOLELY THE CONTRACTOR'S RESPONSIBILITY TO FOLLOW THE APPLICABLE SAFETY CODES

AND REGULATIONS DURING ALL PHASES OF CONSTRUCTION.

EXISTING CONDITIONS:

THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING ALL DIMENSIONS AND CONDITIONS

RELATING TO EXISTING CONSTRUCTION AND EXISTING SERVICES ON SITE. THE

CONTRACTOR SHALL VERIFY ALL DIMENSIONS AND LOCATIONS OF WORK ITEMS WITH THE

DRAWINGS PRIOR TO PROCEEDING WITH THE WORK. ANY DISCREPANCIES WITH THE

CONTRACT DOCUMENTS SHALL BE REPORTED TO THE ARCHITECT AND ENGINEER BEFORE

PROCEEDING WITH THE AFFECTED PART OF THE WORK.

DURING CONSTRUCTION THE CONTRACTOR MAY ENCOUNTER EXISTING CONDITIONS WHICH

ARE NOT KNOWN OR ARE AT VARIANCE WITH PROJECT DOCUMENTATION (DISCOVERY).

SUCH CONDITIONS MAY INTERFERE WITH THE NEW CONSTRUCTION OR REQUIRE

PROTECTION AND/OR SUPPORT OF EXISTING WORK DURING CONSTRUCTION. IT MAY ALSO

CONSIST OF DAMAGED OR DETERIORATION OF STRUCTURAL MATERIALS OR COMPONENTS

WHICH COULD JEOPARDIZE THE STRUCTURAL INTEGRITY OF THE BUILDING(S). THE

CONTRACTOR SHALL NOTIFY THE ENGINEER OF ALL DISCOVERIES WHICH MAY INTERFERE

WITH THE PROPER EXECUTION OF THE WORK OR JEOPARDIZE THE STRUCTURAL INTEGRITY

OF THE BUILDING(S) PRIOR TO PROCEEDING WITH THE WORK RELATED TO SUCH

DISCOVERIES.

DURING THE CONSTRUCTION PROCESS, IT SHALL BE SOLELY THE CONTRACTOR'S

RESPONSIBILITY TO MAINTAIN THE INTEGRITY OF THE EXISTING STRUCTURE AND TO

PROTECT IT FROM DAMAGE ANY PORTIONS THAT ARE TO REMAIN.

BEFORE SUBMITTING A BID, EACH BIDDER SHALL VISIT THE SITE AND BECOME FULLY

ACQUAINTED WITH THE EXISTING CONDITIONS, CONSTRUCTION REQUIREMENTS,

RESTRICTIONS, QUANTITIES AND EQUIPMENT NECESSARY TO COMPLETE THE WORK. THE BID

SHALL INCLUDE ALL ITEMS REQUIRED TO COMPLETE THE WORK WITHIN THE EXISTING

CONDITIONS. DISRUPTION OF THE OWNERS NORMAL ACTIVITIES AROUND THE CONSTRUCTION

SITE SHALL BE KEPT TO A MINIMUM.

THE COST OF ADDITIONAL DESIGN WORK DUE TO ERRORS AND OMISSIONS BY THE

CONTRACTOR DURING CONSTRUCTION SHALL BE BORNE BY THE RESPONSIBLE CONTRACTOR.

ANY ENGINEERING DESIGN PROVIDED BY OTHER AND SUBMITTED FOR REVIEW OR RECORD

SHALL BEAR THE STAMP AND SIGNATURE OF A PROFESSIONAL STRUCTURAL ENGINEER

REGISTERED IN THE STATE WHERE THE PROJECT EXISTS.

CONTRACTOR SHALL COORDINATE WORK SCHEDULES WITH THE OWNER TO ESTABLISH

CONSTRUCTION SEQUENCING AROUND ANY OCCUPIED AREAS. CONTRACTOR SHALL NOT

PROCEED TO OCCUPIED AREAS UNTIL AUTHORIZED BY THE OWNER.

ALL ELEMENTS AND SURFACES DAMAGED BY DEMOLITION, BUT NOT SCHEDULED FOR REMOVAL

SHALL BE REPAIRED AND REFINISHED TO MATCH THE ADJACENT SURFACES AT NO ADDITIONAL

COST TO THE OWNER.

CONTRACTOR SHALL REMOVE ALL DEBRIS AND WASTE MATERIALS RESULTING FROM

CONSTRUCTION FROM THE SITE, UNLESS NOTED OTHERWISE.

CONTRACTOR SHALL MINIMIZE CREATION OF DUST, DIRT AND WINDBORNE DEBRIS FROM

BLOWING ACROSS THE SITE AND ONTO ADJACENT SITES.

SUBMIT TEMPORARY SHORING PLANS THAT ARE SIGNED AND SEALED BY A REGISTERED

STRUCTURAL ENGINEER.

ALTERNATE 1: ALL CONCRETE TOPPING SLAB REPLACEMENT WORK IN NW STAIR TOWER

ALTERNATE 2: PROVIDE PENETRATING SEALER TO ALL HORIZONTAL CONCRETE SURFACES IN

SE STAIR TOWER. SEALANT AREA INCLUDES THE CROSSOVER AT EACH LEVEL UP TO THE

PARKING GARAGE LEVEL AT THE WEST END OF EACH CROSSOVER. SEALANT AREA DOES NOT

EXTEND PAST CURTAIN WALL INTO ELEVATOR LOBBY AT EACH LEVEL. SEE APPROVED SEALERS

ABOVE. PENETRATING SEALANT SHOULD NOT BE APPLIED UNTIL ALL HORIZONTAL CONCRETE

PATCHING HAS BEEN COMPLETED.

ONLY (1) SET OF STAIRS CAN BE IMPACTED AT A TIME. REPAIR WORK CANNOT OCCUR

SIMULTANEOUSLY IN BOTH TOWERS.

GENERAL NOTES

1.

2.

3.

4.

5.

A.

B.

a.

b.

C.

a.

b.

6.

7.

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B.

C.

D.

a.

E.

F.

G.

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B.

a.

b.

c.

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B.

C.

ALL CONCRETE SHALL CONFORM TO THE LATEST REQUIREMENTS OF THE AMERICAN

CONCRETE INSTITUTES PUBLICATIONS: ACI 301, ACI 305.1, ACI 306.1, ACI 315, AND ACI 318

UNLESS NOTED OTHERWISE.

CONCRETE COMPRESSIVE STRENGTH (28 DAY)(F'c)

TOPPING SLAB 4000 PSI

CONCRETE REINFORCEMENT STANDARDS:

DEFORMED BARS ASTM A615 Fy = 60 KSI WELDED WIRE REINFORCEMENT (WWR) ASTM A1064 Fy = 65 KSI EPOXY COATED REINFORCING ASTM A775 Fy = 60 KSI

ALL CONCRETE SHALL BE STONE AGGREGATE UNLESS NOTED OTHERWISE. SUBMIT MIX DESIGN

AND DOCUMENTATION FOR APPROVAL PER ACI 318.

REINFORCEMENT PROTECTION

CONCRETE PLACED AGAINST EARTH - 3"

CONCRETE PLACED IN FORMS BUT EXPOSED TO WEATHER OR EARTH:

BARS #5 AND SMALLER - 1 1/2"

BARS LARGER THAN #5 - 2"

CONCRETE NOT EXPOSED TO WEATHER OR IN CONTACT WITH GROUND:

SLABS, WALLS, AND JOISTS - 3/4"

BEAMS, COLUMNS - 1 1/2"

REINFORCING STEEL SHALL BE SECURELY FASTENED INTO FORMS PRIOR TO POURING

CONCRETE. WET SETTING OF REINFORCING STEEL WILL NOT BE ACCEPTED PER ACI.

TOPPING SLAB MIX DESIGN:

COARSE AGGREGATE: 100% PASSING 1/2" SIEVE

FINE AGGREGATE: 100% PASSING NO. 8 SIEVE

WATER CEMENT RATIO: 0.4

SLUMP (WITH WATER REDUCER): 5"-8"

WATER SHALL NOT BE ADDED AT THE SITE WITHOUT THE APPROVAL OF THE DESIGN

PROFESSIONAL

AIR CONTENT: 6% ± 1.5%

REINFORCING: 5 LBS/CUBIC YARD OF MACROFIBER, SEE ITEM 8 FOR MORE INFORMATION

CURING: REFER TO ITEM 9 FOR APPROVED CURING METHODS

MACRO-FIBERS

SYNTHETIC MACRO-FIBERS SHALL BE POLYOLEFIN MACRO-FIBERS ENGINEERED AND

DESIGNED FOR USE IN CONCRETE, COMPLYING WITH ASTM C1116/C1116M TYPE III, 1 TO 2 1/4

INCH LONG.

PRE-APPROVED MANUFACTURERS:

3M; SCOTCHCAST POLYOLEFIN FIBERS 2"

EUCLID CHEMICAL COMPANY; TUF-STRAND SF

FORTA CORPORATION; FORTA FERRO

GCP APPLIED TECHNOLOGIES; STRUX 90/40

NYCON, INC.; XL

PROPEX CONCRETE SYSTEMS CORP.; FIBERMESH 650

SIKA CORPORATION; SIKA FIBER MS20

CONCRETE CURING MATERIALS

EVAPORATION RETARDER: WATERBORNE, MONOMOLECULAR FILM FORMING,

MANUFACTURED FOR APPLICATION TO FRESH CONCRETE.

PRE-APPROVED MANUFACTURERS:

BASF CHEMICALS - MASTER BUILDERS SOLUTIONS; MASTERKURE ER 50

CHEMMASTERS; SPRAYFILM

DAYTON SUPERIOR CORPORATION; AQUAFILM CONCENTRATE J74

EUCLID CHEMICAL COMPANY; EUCOBAR

KAUFMAN PRODUCTS, INC.; VAPOR-AID

LAMBERT CORPORATION; LAMBCO SKIN

LATICRETE INTERNATIONAL, INC.; L&M E-CON

MEADOWS, W.R., INC,; EVAPRE

METALCRETE INDUSTRIES; WATERHOLD

NOX-CRETE PRODUCTS GROUP; MONOFILM

SIKA CORPORATION; SIKAFILM

SPECCHEM, LLC; SPEC FILM

TK PRODUCTS, DIVISION OF SIERRA CORPORATION; TK-2120 TRI-FILM

ABSORPTIVE COVER: AASHTO M 182, CLASS 2, BURLAP CLOTH MADE FROM JUTE OR KENAF,

WEIGHING APPROXIMATELY 9 OZ/SQ YARD WHEN DRY.

MOSTURE-RETAINING COVER: ASTM C171, POLYETHYLENE FILD OR WHITE BURLAP-

POLYETHYLENE SHEET.

CAST-IN-PLACE CONCRETE

DESCRIPTION QUANTITY

STAIR TREAD REPLACEMENT

OVERHEAD SPALL REPAIR

ESTIMATED QUANTITES (FOR REFERENCE ONLY)

UNITS

SF

SF

SYMBOL

ALT 1: HORIZONTAL SPALL REPAIR 80 SF

ALT 2: SURFACE SEALANT 2611 SF

1.

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B.

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2.

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5.

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B.

C.

HORIZONTAL APPLICATIONS - DEPTHS ≤ 1"

MASTEREMACO T 310CI BY BASF

SIKAQUICK 1000 BY SIKA CORPORATION

DURALTOP FLOWABLE MORTAR BY THE EUCLID CHEMICAL COMPANY

APPROVED EQUIVALENT

HORIZONTAL APPLICATIONS (MAY REQUIRE AGGREGATE) - DEPTHS > 1"

MASTEREMACO T 310CI BY BASF

SIKACRETE 100 CI BY SIKA CORPORATION

EUCOCRETE SUPREME BY THE EUCLID CHEMICAL COMPANY

APPROVED EQUIVALENT

VERTICAL/OVERHEAD APPLICATIONS

MASTEREMACO N 425 CI BY MASTER BUILDERS SOLUTIONS

SIKAQUICK VOH BY SIKA CORPORATION

SPEED CRETE PM BY THE EUCLID CHEMICAL COMPANY

APPROVED EQUIVALENT

PENETRATING SEALERS

BARACADE SILANE 100 C (EUCLID)

ISO-FLEX 618-100 CORROSION REDUCING SEALER (LYMTAL)

SIKAGARD H 1000 (SIKA)

PENTREAT 244-100 (W.R. MEADOWS)

PROTECTOSIL BHN (EVONIK)

SIKAGARD-705L (SIKA)

WATERPROOFING MEMBRANE SYSTEMS

SIKALASTIC 720/745 AL HEAVY VEHICULAR TRAFFIC - SEED AND BACKROLL SYSTEM BY SIKA

CORPORATION

MASTERSEAL TRAFFIC 2500 HEAVY DUTY TRAFFIC SYSTEM (TC 295 TOPCOAT) BY MASTER

BUILDERS SOLUTIONS

350NF/951NF/951NF BY TREMCO

APPROVED PROJECT GROUTS, SEALERS, AND MEMBRANE SYSTEMS

9. APPLY WATERPROOFING MEMBRANE TO ELEVATED SLABS

PER SPECIFICATIONS, EXTEND 3" BEYOND EDGE OF PATCH,

DO NOT APPLY MEMBRANE TO SLAB-ON-GRADE

5.00° TYP1"

M

IN

3" TYP

8. INSTALL CONCRETE PATCHING MATERIAL PER

MANUF. RECOMMENDATIONS

SECTION

SPALLED

CONCRETE

AREA

PLAN

1.

2.

3.

4.

5.

6.

5° ANGLED SAW CUT AROUND PERIMETER, MIN DEPTH = 1",

CORNERS SHALL BE 90°, AVOID REENTRANT CORNERS

REMOVE LOOSE CONCRETE WITHIN SAW CUT,

MIN DEPTH = 1", DO NOT CUT REINFORCEMENT

WHERE REBAR IS EXPOSED, MIN DEPTH = 1" BEYOND REBAR

CLEAN REBAR TO SHINY METAL WITH WIRE WHEEL, CLEAN

CAVITY WITH BROOM AND COMPRESSED AIR

APPLY ZINC-RICH EPOXY PRIMER TO REBAR PER MANUF.

RECOMMENDATIONS

NOTIFY DESIGN PROFESSIONAL FOR OBSERVATION PRIOR

TO PATCHING

7. INSTALL CONCRETE PATCHING MATERIAL PER

MANUF. RECOMMENDATIONS

NOTE: EXISTING JOINTS SHALL CONTINUE

THROUGH SPALL REPAIRS

PLAN/SECTION

SPALLED

CONCRETE

AREA

ELEVATION/PLAN

1.

2.

3.

4.

5.

6.

5° ANGLED SAW CUT AROUND PERIMETER, MIN DEPTH = 1/2",

CORNERS SHALL BE 90°, AVOID REENTRANT CORNERS

REMOVE LOOSE CONCRETE WITHIN SAW CUT,

MAX DEPTH = 1/2"

WHERE REBAR IS EXPOSED AT OVERHEAD SPALLS, MIN

DEPTH = 1" BEYOND REBAR. WHERE REBAR IS EXPOSED AT

VERTICAL SPALLS, DO NOT REMOVE CONCRETE BEYOND BAR

CLEAN REBAR TO SHINY METAL WITH WIRE WHEEL, CLEAN

CAVITY WITH BROOM AND COMPRESSED AIR

APPLY ZINC-RICH EPOXY PRIMER TO REBAR PER MANUF.

RECOMMENDATIONS

NOTIFY DESIGN PROFESSIONAL FOR OBSERVATION PRIOR

TO PATCHING

5.00° TYP

1" M

IN

PROVIDE A MOCKUP SECTION OF TOPPING SLAB REMOVAL PRIOR TO

REMOVING ENTIRE SLAB. DESIGN PROFESSIONAL TO EVALUATE THE TOP

OF THE EXISTING STAIRS PRIOR TO FULL TOPPING SLAB DEMOLITION

REMOVE AND REPLACE TOPPING SLAB, SEE NOTES FOR NEW TOPPING

SLAB MIX DESIGN

EXISTING PRECAST STAIRS

NEW CONCRETE STAIR TREAD,

DEMO EXISTING DOWN TO

SOLID CONCRETE, FINISH

SIMILAR TO EXISTING TREADS

EXISTING PRECAST STAIRS VERIFY

FIELD

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1/

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#4 DOWEL w/ 180° HOOK AT 12" OC, DRILL AND EPOXY w/

HILTI HY-200 (3" EMBED)

#4xCONT DOWEL, DRILL AND EPOXY w/ HILTI HY-200

(3" EMBED)

#4 DOWEL AT 12" OC, DRILL

AND EPOXY w/ HILTI HY-200

(3" EMBED)

ALL NEW REBAR TO

BE EPOXY COATED

FORMS

ORIGINAL

SURFACE

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AX

SOUND

CONCRETE

1.

2.

3.

4.

5.

REPAIRS

REMOVE UNSOUND CONCRETE AND ALL PREVIOUS

PATCHING MATERIAL FROM INVERTED TEE BEAM, CORBEL,

AND COLUMN.

SANDBLAST EXPOSED STEEL.

REVIEW CONDITION OF EXPOSED STEEL. ADDITIONAL

REINFORCING OR REPLACEMENT BAR MAY BE NEEDED IF

EXISTING STEEL IS CORRODED TOO EXTENSIVELY.

CONSULT ENGINEER OF RECORD.

COAT EXPOSED STEEL STRUCTURAL MEMBERS WITH

ZINC-RICH COATING.

PATCH REPAIR LOCATIONS WITH CORROSION RESISTANT

CONCRETE PATCH MATERIAL.

PRECAST INVERTED TEE

BEAM

CONCRETE BEAM PATCH.

SEE NOTES

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0 1 1/2" = 1'-0"A4 HORIZONTAL CONCRETE SPALL REPAIR

1' 0 1 1/2" = 1'-0"B4 VERTICAL/OVERHEAD CONCRETE SPALL REPAIR

1'

0 1" = 1'-0"B3 TYPICAL TOPPING SLAB REPLACEMENT SECTION

1'-6"

0 1 1/2" = 1'-0"D4 CONCRETE STAIR REPAIR

1'

0 3" = 1'-0"D3 SHALLOW REPAIR BOTTOM SURFACE

6"

0 1" = 1'-0"D3aINVERTED TEE REPAIR DETAIL 1'-6"

13 12 11

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0TRUE NORTH

NORTH

PLAN

1/4" = 1'-0"A4 LEVEL B REPAIR PLAN

6'

KEYNOTES

KEY NOTE

S02 APPROXIMATELY 6 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. SEE PHOTO 07 AND DETAIL

B4/S000.

S44 APPROXIMATELY 5 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 05 AND DETAIL

B4/S000.

S45 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE BEAM PATCHING. SEE PHOTO 06 AND

DETAIL D3/S000.

S46 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE BEAM PATCHING, INSIDE FACE OF BEAM.

SEE PHOTO 03 AND DETAIL D3A/S000.

S47 APPROXIMATELY 5 SQUARE FEET OF OVERHEAD

CONCRETE BEAM PATCHING, OUTSIDE FACE OF BEAM.

SEE PHOTO 04 AND DETAIL D3A/S000.

S48 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 02 AND DETAIL

B4/S000.

S49 APPROXIMATELY 3 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 01 AND DETAIL

B4/S000.

S66 ALT #2: PROVIDE PENETRATING SEALER TO ALL

HORIZONTAL STAIR SURFACES.

NOT TO SCALEA2 PHOTO 1

NOT TO SCALEB2 PHOTO 2

NOT TO SCALEC2 PHOTO 3

NOT TO SCALEE3 PHOTO 4

NOT TO SCALEE3a PHOTO 5

NOT TO SCALED4 PHOTO 6

0 1" = 1'-0"E4 PHOTO 7

UNDER SLAB PATCHING UNDER SLAB PATCHING END OF BEAM PATCHING

BEAM PATCHING

UNDER SLAB PATCHING

BEAM PATCHING

UNDER SLAB PATCHING

D

E

F

C.5

S12

S13

24'-0" 24'-0"

'-0

'-0

'-0

S50

S51

S66S66

EXISTING CURTAIN WALL AND DOOR

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0TRUE NORTH

NORTH

PLAN

1/4" = 1'-0"A4 LEVEL A REPAIR PLAN

6'

KEYNOTES

KEY NOTE

S12 APPROXIMATELY 4 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. SEE PHOTO 39 AND DETAIL

B4/S000.

S13 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. SEE PHOTO 40 AND DETAIL

B4/S000.

S50 APPROXIMATELY 4 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 37 AND DETAIL

B4/S000.

S51 APPROXIMATELY 4 SQUARE FEET OF OVERHEAD

CONCRETE BEAM PATCHING. SEE PHOTO 38 DETAIL

AND D3/S000.

S66 ALT #2: PROVIDE PENETRATING SEALER TO ALL

HORIZONTAL STAIR SURFACES.

NOT TO SCALEA2 PHOTO 37

NOT TO SCALEC2 PHOTO 38

NOT TO SCALED2 PHOTO 39

NOT TO SCALEE3 PHOTO 40

UNDER SLAB PATCHING

BEAM PATCHING CONCRETE PATCHING

CONCRETE

PATCHING

D

E

F

C.5

S16

S17

24'-0" 24'-0"

'-0

'-0

'-0

S15

S53 S52

S66S66

EXISTING CURTAIN WALL AND DOOR

AP

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D R

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SU

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F

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S ta ir R ep ai r/2

0-

S- R

-C

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S ta ir R ep ai r.r vt

LE

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S

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R

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AI

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G R

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D

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SY

LV

AN

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A

VE

N U

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ES

M

O

IN

ES

, I

O W

A

0TRUE NORTH

NORTH

PLAN

1/4" = 1'-0"A4 LEVEL 1 REPAIR PLAN

6'

KEYNOTES

KEY NOTE

S15 APPROXIMATELY 13 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. SEE PHOTO 35 AND DETAIL

B4/S000.

S16 APPROXIMATELY 3 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. SEE PHOTO 33 AND DETAIL

B4/S000.

S17 APPROXIMATELY 13 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. SEE PHOTO 32 AND DETAIL

B4/S000.

S52 APPROXIMATELY 4 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 34 AND DETAIL

B4/S000.

S53 APPROXIMATELY 1 SQUARE FOOT OF OVERHEAD

CONCRETE BEAM PATCHING. SEE PHOTO 36 AND

DETAIL D3A/S000.

S66 ALT #2: PROVIDE PENETRATING SEALER TO ALL

HORIZONTAL STAIR SURFACES.

NOT TO SCALEA2 PHOTO 32

NOT TO SCALEB2 PHOTO 33

NOT TO SCALED2 PHOTO 34

NOT TO SCALEE3 PHOTO 35

NOT TO SCALEE4 PHOTO 36

CONCRETE PATCHING CONCRETE PATCHING

UNDER SLAB PATCHING

CONCRETE

PATCHING

END OF BEAM

D

E

F

C.5

S19

S26

S28

S27

24'-0" 24'-0"

'-0

'-0

'-0

S55

S56

S54

S57 S58

S59

S66S66

EXISTING CURTAIN WALL AND DOOR

AP

PR

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D B

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D R

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N

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IS

SU

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F

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IS

SU

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S

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LV

AN

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A

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M

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IN

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A

0TRUE NORTH

NORTH

PLAN

1/4" = 1'-0"A4 LEVEL 2 REPAIR PLAN

6'

KEYNOTES

KEY NOTE

S19 APPROXIMATELY 7 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. POTENTIAL CONDUIT CONFLICT.

SEE PHOTO 27 AND DETAIL B4/S000.

S26 APPROXIMATELY 8 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. SEE PHOTO 28 AND DETAIL

B4/S000.

S27 APPROXIMATELY 12 SQUARE FEET OF STAIR TREAD

REPLACEMENT. SEE PHOTO 29 AND DETAIL D4/S000.

S28 APPROXIMATELY 10 SQUARE FEET OF STAIR TREAD

REPLACEMENT. SEE PHOTOS 30 AND 31 AND DETAIL

D4/S000.

S54 APPROXIMATELY 1 SQUARE FOOT OF OVERHEAD

CONCRETE BEAM PATCHING. SEE PHOTO 26 AND

DETAIL D3A/S000.

S55 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE BEAM PATCHING. SEE PHOTO 25 AND

DETAIL D3A/S000.

S56 APPROXIMATELY 4 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 24 AND DETAIL

B4/S000.

S57 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 21 AND DETAIL

B4/S000.

S58 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 22 AND DETAIL

B4/S000.

S59 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE BEAM PATCHING. SEE PHOTO 23 AND

DETAIL D3A/S000.

S66 ALT #2: PROVIDE PENETRATING SEALER TO ALL

HORIZONTAL STAIR SURFACES.

NOT TO SCALEA2 PHOTO 21

NOT TO SCALEB2 PHOTO 22

NOT TO SCALEC2 PHOTO 23

NOT TO SCALED2 PHOTO 24

NOT TO SCALED3 PHOTO 25

NOT TO SCALEE3 PHOTO 26

NOT TO SCALEF3 PHOTO 27

NOT TO SCALED4aPHOTO 28

NOT TO SCALEE4 PHOTO 29

NOT TO SCALED4 PHOTO 30

NOT TO SCALEE4a PHOTO 31

UNDER SLAB

PATCHING

UNDER SLAB

PATCHING

BEAM

PATCHING

UNDER SLAB PATCHING

END OF BEAM

PATCHING

UNDER SLAB

PATCHING

BEAM

PATCHING

CONCRETE

PATCHING

STAIR TREAD

REPLACEMENT

STAIR TREAD

REPLACEMENT

STAIR TREAD

REPLACEMENT

D

E

F

C.5

S29 S30

S31

24'-0" 24'-0"

'-0

'-0

S60

S61

S62

S66S66

EXISTING CURTAIN WALL AND DOOR

AP

PR

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D B

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D R

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N

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IS

SU

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F

O R

IS

SU

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G R

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LV

AN

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M

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IN

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A

0TRUE NORTH

NORTH

PLAN

1/4" = 1'-0"A4 LEVEL 3 REPAIR PLAN

6'

KEYNOTES

KEY NOTE

S29 APPROXIMATELY 10 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. POTENTIAL CONDUIT CONFLICT.

SEE PHOTO 15 AND DETAIL B4/S000.

S30 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. POTENTIAL CONDUIT CONFLICT.

SEE PHOTO 16 AND DETAIL B4/S000.

S31 APPROXIMATELY 8 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. SEE PHOTO 14 AND DETAIL

B4/S000.

S60 APPROXIMATELY 4 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTOS 18 AND 19

AND DETAIL B4/S000.

S61 APPROXIMATELY 4 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 17 AND DETAIL

B4/S000.

S62 APPROXIMATELY 4 SQUARE FEET OF OVERHEAD

CONCRETE BEAM PATCHING. SEE PHOTO 20 AND

DETAIL D3A/S000.

S66 ALT #2: PROVIDE PENETRATING SEALER TO ALL

HORIZONTAL STAIR SURFACES.

NOT TO SCALEA2 PHOTO 14

NOT TO SCALEB2 PHOTO 15

NOT TO SCALEC2 PHOTO 16

NOT TO SCALED2 PHOTO 17

NOT TO SCALED3 PHOTO 18

NOT TO SCALEF3 PHOTO 19

NOT TO SCALED4 PHOTO 20

CONCRETE

PATCHING

CONCRETE

PATCHING UNDER SLAB

PATCHING UNDER SLAB

PATCHING

UNDER SLAB

PATCHING

BEAM

D

E

F

C.5

S40

24'-0" 24'-0"

'-0

'-0

'-0

S39

S63

S64 S65

S66S66

EXISTING CURTAIN WALL AND DOOR

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0TRUE NORTH

NORTH

PLAN

1/4" = 1'-0"A4 LEVEL 4 REPAIR PLAN

6'

KEYNOTES

KEY NOTE

S39 APPROXIMATELY 10 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. SEE PHOTO 13 AND DETAIL

B4/S000.

S40 APPROXIMATELY 2 SQUARE FEET OF OVERHEAD

CONCRETE PATCHING. POTENTIAL CONDUIT CONFLICT.

SEE PHOTO 12 AND DETAIL B4/S000.

S63 APPROXIMATELY 4 SQUARE FEET OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 11 AND DETAIL

B4/S000.

S64 APPROXIMATELY 1 SQUARE FOOT OF OVERHEAD

CONCRETE SLAB PATCHING. SEE PHOTO 10 AND DETAIL

B4/S000.

S65 APPROXIMATELY 1 SQUARE FOOT OF OVERHEAD

CONCRETE END OF BEAM PATCHING. SEE PHOTO 09

AND DETAIL D3A/S000.

S66 ALT #2: PROVIDE PENETRATING SEALER TO ALL

HORIZONTAL STAIR SURFACES.

NOT TO SCALEA2 PHOTO 9

NOT TO SCALEB2 PHOTO 10

NOT TO SCALEC2 PHOTO 11

NOT TO SCALEE3 PHOTO 12

NOT TO SCALEE4 PHOTO 13

END OF BEAM PATCHING UNDER SLAB

PATCHING

UNDER SLAB

PATCHING

UNDER SLAB

PATCHING

CONCRETE

2 1.7 1.6 1.1 1 a¹

A

A.2

S42

2 1.7 1.6 1.1 1

A

A.2

S43

TOPPING SLAB REPLACEMENT

TOPPING SLAB REPLACEMENT

AP

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F

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0-

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AL

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R N

AT

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N

W

ST

AI

R

T O

W

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A

0TRUE NORTH

NORTH

PLAN

1/4" = 1'-0"A4 NW STAIR TOWER LEVEL 1 PLAN

KEYNOTES

KEY NOTE

S42 ALT #1: APPROXIMATELY 40 SQUARE FEET OF

CONCRETE TOPPING SLAB REPLACEMENT. REPLACE

ENTIRE TOPPING SLAB WITH 2" MINIMUM SLAB

THICKNESS. SEE PHOTO 42 AND DETAIL A4/S000.

S43 ALT #1: APPROXIMATELY 40 SQUARE FEET OF

CONCRETE TOPPING SLAB REPLACEMENT. REPLACE

ENTIRE TOPPING SLAB WITH 2" MINIMUM SLAB

THICKNESS. SEE PHOTO 43 AND DETAIL A4/S000.

0TRUE NORTH

NORTH

PLAN

1/4" = 1'-0"C4 NW STAIR TOWER LEVEL 2 PLAN

0 1" = 1'-0"A2 PHOTO 42

1'-6" 0 1" = 1'-0"C2 PHOTO 43

1'-6"