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August 8, 2016
US Environmental Protection Agency
Product Availability Waiver Request –American Iron and Steel Provisions
California Clean Water Revolving Loan Fund
Martin Taylor at the SWB [email protected] Elisabeth Brown at the SWB [email protected]
RE: Sacramento Regional County Sanitation District – Sacramento Regional Wastewater Treatment
Plant – Echo Water Biological Nutrient Removal (BNR) Project
SRF project # “C-06-8025-160 EchoWater BNR project”
Expansion Joint Shear Dowels
Good Day:
The Sacramento Regional County Sanitation District is seeking a waiver to the AIS requirements for
expansion joint shear dowels on the EchoWater Project - Biological Nutrient Removal (BNR) Project
located in Elk Grove, California. This project includes the construction a battery of eight BNR basins
consisting of concrete reinforced floors, walls, and elevated slabs, as shown in Attachment A. the BNR
structure is a very large water containing structure designed per the Building Code and American
Concrete Institute (ACI) standards ACI 350 for water containing structures.
Due to the size of the structure (over 1,200 ft by 600 ft) and because of groundwater uplift forces the
magnitude of shear transfer through the expansion joints is very large. To accommodate these large
forces, the designers used a shear dowel system with published shear values. The Halfen Ultra Dowel
System has published shear values and was chosen as the preferred system in the design. There are
several manufacturers of shear dowel systems, none of which are produced in the United States. The
following is a list of known manufacturers of shear dowel systems and the location of production:
Halfen USA – Produced in England by Ancon (sister company) Halfen Germany – Produced in Germany Meadow Burke - Produced in England by Ancon Ancon – Produced in England, sells in US through Halfen and Meadow Burke. Schoeck – Produced in Germany Jordahl – Produced in England Frank – Produced in Germany H-BAU – Produced in Germany Plaka – Ireland
August 8, 2016 US Environmental Protection Agency Product Availability Waiver Request –American Iron and Steel Provisions Page 2
The construction schedule shows that the slab on grade forming and rebar installation will start in late
October of 2016 with delivery of the shear dowels to the site required in late September. The
manufacturer of the Halfen system has confirmed that the product line is not currently produced in the
United States and could not be produced in the US within the delivery schedule required by project.
There will be approximately 15,300 linear feet of expansion joints subject to using the shear dowel
system. There will be approximately 6120 shear dowel systems installed on the project. The expansion
joint details are shown in Attachments 2 and 3. The contractor for the Project, Dragados, USA, has
reported that the material cost for the shear dowel systems to be provided is approximately $1,000,000
USD.
Waiver of the AIS requirement for the dowel systems is necessary to maintain the schedule of the
project and the integrity of the design. We request this waiver be granted.
Sincerely,
Attachments:
A: EXPANSION JOINT LOCATIONS
B: EXPANSION JOINT DETAILS SLAB ON GRADE
C: EXPANSION JOINT DETAILS WALLS
MIN
1' - 0"
MIN
1' - 0"
MIN
1' - 0"
MIN
1' -
0"
MIN
1' -
0"
#6@12" EF (TYP)
TOP SLAB
#6@12" T&B (TYP)#5@12" T&B
PIPE ID
PIPE WALLTHICKNESS
NOTES:1. THE PIPE ENCASEMENT IS DESIGNED FOR A MAXIMUM OF 4000 PSF VERTICAL LOAD AND A MAXIMUM OF 1600 PSF UNIFORM LATERAL LOAD.2. a. FOR Y = 0', THE TOP SLAB CAN BE OMITTED AND THE VERTICAL REBARS TO BE EXTENDED INTO THE BASE SLAB. b. FOR 0'-0"<Y<1'-0", REINFORCE TOP SLAB WITH SINGLE LAYER OF REINFORCEMENT MATCHING THE SIZES INDICATED. REINFORCEMENT TO BE PLACED IN THE CENTER OF THE SLAB. THE VERTICAL REBAR DOWELS TO BE EXTENDED INTO
THE BASE SLAB. c. FOR 1'-0"<Y<3'-0", PROVIDE 12" MINIMUM REINFORCED TOP SLAB AS INDICATED. DOWELS INTO BASE SLAB ARE REQUIRED. ALTERNATELY, FILL WITH CLSM IF INFILL EXISTS BETWEEN THE BASE SLAB AND PIPE ENCASEMENT. FOR
CLSM ALTERNATIVE, THE VERTICAL REBARS NEED NOT BE EXTENDED INTO THE BASE SLAB.3. THE ABOVE DETAIL CAN BE USED FOR SINGLE AND TRIPLE PIPES.4. THE ENCASEMENT SHALL EXTEND AT LEAST 5 FEET BEYOND THE STRUCTURE.5. FOR PIPES DIA LESS THAN OR EQUAL TO 24", USE STD DETAIL S19 FOR ENCASEMENT OF SINGLE, DOUBLE AND TRIPLE PIPES. THE "H" VALUE ON S19 SHALL NOT EXCEED 3'-0".6. 28 DAY CONCRETE STRENGTH SHALL BE MIN 4000 PSI.7. PREPARE SUBGRADE IN ACCORDANCE WITH SPECIFICATION DIVISION 31 20 00.
Y
BASE SLAB
#6 DWLS @12"OC
CLSMALTERNATIVE
#6 @12" T&B
#5 @12" T&B
MIN
2' - 0"
MIN
2' - 0"
MIN
2' - 0"
MIN
2' -
0"
MIN
2' -
0"
#8@12" EF (TYP)
#9@12" T&B (TYP)#5@12" (TYP)
PIPE ID
PIPE WALLTHICKNESS
NOTES:1. THE PIPE ENCASEMENT IS DESIGNED FOR A MAXIMUM OF 4000 PSF VERTICAL LOAD AND A MAXIMUM OF 1600 PSF UNIFORM LATERAL LOAD.2. FOR THE SPACE BETWEEN THE TOP OF PIPE AND PE SPLITTER BASE SLAB, USE CLSM.3. THE ENCASEMENT SHALL EXTEND AT LEAST 5 FEET BEYOND THE STRUCTURE.4. 28 DAY CONCRETE STRENGTH SHALL BE MIN 4000 PSI.5. PREPARE SUBGRADE IN ACCORDANCE WITH SPECIFICATION DIVISION 31 20 00.
PE SPLITTERBASE SLAB
CLSM
MIN
2' -
0"
NOTES:
1. PLACE CONDUIT ONLY IN SHADED AREA.
2. FOR CONDUIT REQUIREMENTS SEE THEELECTRICAL DRAWINGS AND SPECIFICATIONS.
CONC SLAB OR WALL
*MIN CLR DISTANCE 2x ODOF LARGER CONDUIT(2 1/2"MIN)
TT/
3T/
3T/
3S
LAB
THK
(TYPICAL REQUIRED UNLESS ADDITIONALREINFORCEMENTSPECIFICALLY INDICATED AT OPENINGS ONDRAWINGS)
#5 BAR x 4'-0" LONGEACH CORNER INCENTER
CONT SEALANT W/ BACKUP MATERIALON BOND BREAKER TAPE, EACH FACE
EXPANSION JOINT MATERIAL
T
HALFEN HSD-ULTRASHEAR DOWEL SYSTEM.PLACE SLEEVE IN FIRSTPOUR
51S166 WALL EXPANSION JOINT
2" CLR
H
EQEQ
T/2
LONGITUDINAL BARS PER SCHEDULE - EF(CONT ALONG WALL EDGE)
U-BARS PER SCHEDULE, EXTENDLAPPED SPLICE INTO WALL
3/4" CHAMFER 1" JT
SHOWING PRIMARY WALL REINF SHOWING PRIMARY WALL REINF
SYSTEM VARIESWIDTH OF DOWEL
E2 E2 E2 E2 E1 EDGE OF DOWEL SYSTEM
NOTE :PRIMARY WALL REINF NOT SHOWN FORCLARITY.
C/L DOWEL SYSTEM
# OF BARS EACH SIDEOF DOWEL SYTEM
LONGITUDINALBARS
DESIGNATION JOINTTYPE
DOWELTYPE
DOWEL SPACING"DS"
# & TYPE OF U-BARS(EA SIDE)
HEIGHT OFU-BAR "H"
E1SPACING
E2SPACING
LONGITUDINAL BARSEACH FACE
HSD-ULTRA -22T=20", N/S JOINT 2'-6" 4 - #4 10" 1 1/4" 2" 2 - #451S166A
DOWEL SCHEDULE
PRIMARY WALL REINF PERSCHEDULE (EACH FACE)
SECTION A
A
A
SCALE IN INCHES 0 1/2 1 2 4 (IF SCALE BAR IS NOT 4", SCALE ACCORDINGLY)
DRAWING NUMBER
DISCIPLINE
CONTRACT SEQUENCE NUMBER
CONTRACT NUMBER
DESIGNER PROJECT NUMBER
FILENAME
APPROVED
CHECKED
DRAWN
DESIGNED
MARK
ISSUE BLOCK
OF
DATE DESCRIPTION
1 2 3 4
1 2 3 4 5
D
C
B
A
C
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A
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BID DOCUMENTSOCTOBER 28, 2015
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STANDARD DETAILS
367
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S. PARKS
L. FRENCH
B. BERGDALL
R. RAMPETSREITER
4208-3D-BNRB.rvt
179173
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51
STRUCTURAL
BIOLOGICALNUTRIENTREMOVAL (BNR)PROJECTPIPE ENCASEMENT FOR >24" THROUGH 48" DIA51S162
PE SPLITTER PIPE ENCASEMENT51S163
CONDUIT PLACING DETAIL51S164
TYPICAL EXTRA REINFORCING AT ISOLATED RE-ENTRANT CORNERS51S165
EXPANDING WATERSTOPBELOW WALL, CONTINUOUSACROSS WALLCONSTRUCTION JOINT
51S156 INTERFACE BETWEEN PVC WATERSTOP ANDEXPANDING WATERSTOP
PVC WATERSTOP
VERTICALCONSTRUCTIONJOINT BETWEENWALL PLACEMENTS
NOTE:REINF NOT SHOWN.
EXPANDING WATERSTOPINTERRUPED AT EXPANSIONJOINT
PVC WATERSTOP
EXPANSIONJOINT INWALL AND SLAB
NOTE:REINF NOT SHOWN.
AT CONSTRUCTION JOINTS AT EXPANSION JOINTS
9" BASE SEAL TPV WATER STOPGEOFABRIC TO SEPARATE BASESEAL FROM COMPACTED FILL
9" PVC BULB WATER STOPIN CENTER OF JOINT
CONT SEALANT W/ BACKUP MATERIALON BOND BREAKER TAPE.
COMPACTED FILL
EXPANSION JOINT MATERIAL
T
HALFEN HSD-ULTRASHEAR DOWEL SYSTEM.PLACE SLEEVE IN FIRSTPOUR
51S152 EXPANSION JOINT - TYPE 1
2" CLR
H
EQEQ
HD
6"
LONGITUDINAL BARS PER SCHEDULE - T&B(CONT ALONG SLAB EDGE)
U-BARS PER SCHEDULE, EXTENDLAPPED SPLICE INTO SLAB
(TYP)3/4" CHAMFER 1" JT
SHOWING PRIMARY SLAB REINFW/ N/S JOINTS
SHOWING PRIMARY SLAB REINFW/ E/W JOINTS
SYSTEM VARIESWIDTH OF DOWEL
E2 E2 E2 E2 E1 EDGE OF DOWEL SYSTEM
NOTE :WATERSTOP AND PRIMARY SLAB REINF NOTSHOWN FOR CLARITY.
C/L DOWEL SYSTEM
# OF BARS EACH SIDEOF DOWEL SYTEM
LONGITUDINALBARS
DESIGNATION JOINTTYPE
DOWELTYPE
HEIGHT TODOWEL "HD"
DOWEL SPACING"DS" UNO
# & TYPE OF U-BARS(EA SIDE)
HEIGHT OFU-BAR "H"
HSD-ULTRA -35T=30", N/S JOINT
E1SPACING
E2SPACING
LONGITUDINAL BARSTOP & BOTTOM
16" 2'-6" 5 - #5 16" 1 1/2" 2" 2 - #551S152AHSD-ULTRA -22T=24", N/S JOINT 12" 2'-6" 4 - #4 10" 1 1/4" 2" 2 - #451S152BHSD-ULTRA -22T=VARIES, E/W JOINT 12" 2'-6" 4 - #4 10" 1 1/4" 2" 2 - #451S152C
DOWEL SCHEDULE
PRIMARY SLAB REINF PERPLAN (TOP AND BOTTOM)
SECTION A
A
A
HSD-ULTRA -35T=28", N/S JOINT 14 1/2" 2'-6" 5 - #5 13" 1 1/2" 2" 2 - #551S152D
SAWED JOINT (1/8"±1/16")(W/ CAULK IF SPECIFICALLYNOTED ON DRAWINGS)
NO WATERSTOP ORDOWELS AT JOINT
NOTE:IF SINGLE LAYER REINFORCEMENT. EVERY OTHERBAR IS DISCONTINUOUS AT JOINT.IF 2 LAYER REINFORCEMENT, TOP LAYER ISCOMPLETELY DISCONTINUOUS AT JOINT.
NOTE: JOINT FORMED WITH TOOL OR INSERT STRIP MAY BE SUBSTITUTED FOR SAWED TYPE ONLY WITH PRIOR ACCEPTANCE BY THE ENGINEER.
T
T/4
51S157 SAWED CONTRACTION JOINT SLAB-ON-GRADE
T
T/2
COMPACTED FILL
GREASE THIS HALF OFTHE DOWEL
EXPANSIONCAP
EARTHSHIELD WS JP320LOR EQUAL (TOTAL 2)
SLAB REINF
EXP JT MATERIAL
3/4" JOINT SEALANTW/ BACKUPMATERIAL ON BONDBREAKER TAPE
WALL REINF
C/L
51S154 EXPANSION JOINT TYPE 3
11 1/2"
1" DIA X 24" LONG SMOOTHDOWELS (A36) @ 12"OCGREASED ON ONE SIDE @24"OC
GREASE THIS HALF OFTHE DOWEL
EXPANSION CAP
SLAB REINF
EXP JT MATERIAL
3/4" SEALANT W/BACKUP MATERAILON BOND BREAKERTAPE
WALL REINF
C/L TOP SLAB
51S155 EXPANSION JOINT - TYPE 4
SLAB REINF
SPLITTER WALLBNR WALL
SIKADUR COMBIFLEXSYSTEM OR EQUAL
1/2" SS PL W/ 1/4" DIACOUNTERSUNK SSEXPANSION ANCHOR @24"OC ON ONE SIDE
8"x5/64" SIKADUR COMBIFLEXTAPE OR EQUAL
NOTES:1. LOWER THE TOP SLAB REINF FOR THE BOX OUT.2. BOX OUT DIMENSION TO BE VERIFIED WITH THE MFR.
1" DIA X 24" LONGSMOOTH DOWELS(A36) @ 12"OCGREASED ONONE SIDE.
11 1/2"
9" PVC WATER STOP INCENTER OF JOINT
PRIMARYREINFORCING
CONT SEALANT W/ BACKUP MATERIALON BOND BREAKER TAPE (TYP)
T / 2
1" JT.(TYP)
3/4"CHAMFER
3" 2"1"
2"
EXPANSION JOINT MATERIAL
EXPANSIONCAP
11 1/2" 11 1/2"
T
1" DIA X 24" LONG SMOOTHDOWELS (A36) @ 12"OCGREASED ON ONE SIDE.
GREASE THISHALF OF DOWEL
51S153 EXPANSION JOINT - TYPE 2
SCALE IN INCHES 0 1/2 1 2 4 (IF SCALE BAR IS NOT 4", SCALE ACCORDINGLY)
DRAWING NUMBER
DISCIPLINE
CONTRACT SEQUENCE NUMBER
CONTRACT NUMBER
DESIGNER PROJECT NUMBER
FILENAME
APPROVED
CHECKED
DRAWN
DESIGNED
MARK
ISSUE BLOCK
OF
DATE DESCRIPTION
1 2 3 4
1 2 3 4 5
D
C
B
A
C
B
A
PLO
T D
ATE:
PAT
H A
ND
FIL
ENAM
E:
SUB CONSULTANT
D
10/28/2015
BID DOCUMENTSOCTOBER 28, 2015
C:\R
evi t\
Loca
l File
s\42
0 8-3
D-B
NR
B_Ja
son
Sec
k_na
2112
74.rv
t10
/23/
2 015
4:0
8:03
PM
CAD
Us e
r:L. F
RE
NC
H
51S-5002
STANDARD DETAILS
365
467
S. PARKS
L. FRENCH
B. BERGDALL
R. RAMPETSREITER
4208-3D-BNRB.rvt
179173
4208
51
STRUCTURAL
BIOLOGICALNUTRIENTREMOVAL (BNR)PROJECT
