Amendment A00003 Sheet C-11-Revised 04MAR21.pdf
PDF 1 MB Posted
- Attached to
- W912DR21B0007 | Third High Reservoir Federal contract opportunity
- Solicitation number
- W912DR21B0007
About this file
This document is an amendment to construction drawings for improvements to the Third High Reservoir. Key details include specifications for reinforced concrete structures like outlet pipes, manholes, and foundations with a minimum compressive strength of 4,000 psi. Reinforcing steel is required to meet ASTM A615 Grade 60. Concrete cover depths and placement procedures are defined. The related federal contract opportunity is solicitation number W912DR21B0007 for maintenance and improvements to the Third High Reservoir issued by the Department of the Army Corps of Engineers Baltimore District. The drawings provide construction requirements for reinforced concrete elements of the reservoir improvements.
View the file
Other files for this federal contract opportunity
Show all 17
On GovTribe
Work with this file on GovTribe
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
SECTION A
60''
RUNGS (BEYOND)
OUTLET
CONC. f'c=4000 psi
C
L R
C
L R
30'' DIA
10"
16''
#6 @6'' O.C. EACH
WAY TOP & BOTTOM
PROVIDE A 12'' LAYER OF
LIMEROCK WITH 3/4'' MAX. SIZE
COMPACTED TO 95% MODIFIED
PROCTOR TEST (TYP)
C L A
S S
B
L A
P
S P
L I C
E
T
Y P
#6 @6'' O.C. VERT.
EACH FACE
O
C
H
O R
I Z
O N
T A
L
E
F
O
C
H
O R
O
C
H
O R
C
L R
#5 @6'' O.C.
EACH WAY
TOP & BOTTOM
MJ LONG SLEEVE
CONNECTION
MJ LONG SLEEVE
CONNECTION
AUTOMATIC
COMBINATION AIR
VALVE
STANDARD 30" DIA
WATERTIGHT MANHOLE
FRAME AND COVER
WWF 4x4 - W1.4 x W1.4
16''
#5 @6'' O.C.
EACH WAY &
EACH FACE
SEE DETAIL A
ON SHEET
C
L R
'' DEEP
SHEAR KEY (TYP)
3" CLR
(TYP)
2" CLR
(TYP)
3" CLR
(TYP)
EL. 401.0
EL. 406.0
EL. 386.0
EL. 387.0
C
L R
C
L R
10"
'' X 6'' X L RUBBER
WATERSTOP (TYP)
RUBBER
GASKET
2" CORPORATION
STOP SIDE
12'' 12''
EXISTING 24"
BLOW-OFF
DRAIN
PROJECTED
BACK
4"
D
I
A
2"
TYP
7 8
2"
4"
PLAN
PRESSURE PLATE RING
PLAN
PRESSURE PLATE
8''
4''
PL
8''
4''
2''
2''
2''
B B
SECTION B-B
DETAIL A
DRILL 8 -9/16"
HOLES
CHISELED
ARROW
DRILL AND TAP STD
1/2" THREAD - 8 HOLES
CHISELED ARROW
8 - 1/2" ANCHORS
8 - #4 ANCHORS OR 1/2'' x 8'' (LENGTH
AFTER WELD) ELECTRICALLY WELDED
STUDS, NELSON H4L OR EQUAL
DRILL AND TAP
1/2''- NC THREAD
8 - 1/2'' X 1 1/2'' STAINLESS
STEEL Hex HEAD BOLTS
GASKET SEE NOTE 3
1/2" BAR HANDLE
PLAN VIEW (EL. 386.0)
I N
T L
E T
OUTLET
A
C-11
1'-4" 5'-0" 1'-4"
D
I
A
#6 @6 T&b EW t=20''
PROVIDE STD. HOOK AT
ENDS OF ALL
REINFORCEMENT
3'-6'' X 3'-6'' CORNER
BARS OF THE SAME
SIZE AND SPACING
SHOWN ON SECTION
DETAIL 1/C-09 (TYP)
1'-0" 1'-0"
MIDDLE STRIP
#3 THRU
#11 BARS
#14 THRU
#18 BARS
Lcd = COMPRESSION DEVELOPMENT LENGTH
Ltd = TENSION DEVELOPMENT LENGTH (WITHOUT HOOKS)
LAP SPLICE NOT PERMITTED; USE MECH.
SPLICES PER ACI 318, SECTION 12.14.3
USE 30 BAR DIAMETER FOR ALL CONC.
STRENGTHS.
COMPRESSION SPLICE
LENGTH SCHEDULE (Lc)
NOTE:
1- TOP BARS MUST BE CONCENTRATED WITHIN WIDTH OF THE COLUMN PLUS
1.5 ON EACH SIDE OF THE COLUMN (ACI 13.5.3.2 AND 13.5.3.4).
2- INTEGRITY REINFORCEMENT IS REQUIRED (ACI 13.3.8.5). ALL BOTTOM BARS
IN THE COLUMN STRIP MUST BE CONTINUOUS OR SPLICED OVER THE
SUPPORT WITH CLASS "B" TENSION LAP SPLICES. AT LEAST TWO OF THE
COLUMN STRIP BOTTOM BARS IN EACH DIRECTION MUST PASS WITHIN THE
COLUMN CORE AND BE ANCHORED AT EXTERIOR SUPPORTS.
NOTE:
1. TABULATED VALUES ARE BASED ON A MINIMUM YIELD STRENGTH OF 60,000 PSI AND
NORMAL-WEIGHT CONCRETE. LENGTHS ARE IN INCHES. ALL LAP SPLICE ARE CLASS "B"
SPLICES.
2. TENSION DEVELOPMENT LENGTHS AND TENSION LAP SPLICE LENGTHS ARE CALCULATED
PER ACI 318-11, SECTIONS 12.2.3 AND 12.15, RESPECTIVELY, WITH BAR SIZES LIMITED TO #3
THROUGH #11.
3. SPLICE LENGTHS FOR TOP BARS OF BEAMS & SLABS THICKER THAN 12" HAVE BEEN
MULTIPLIED BY A FACTOR OF 1.3 Ld PER ACI 350-06 & 318-11
B
A R
D I A
TENSION
EMBEDMENT
COMPRESSION AND TENSION DEVELOPMENT LENGTH SCHEDULE
3000 P.S.I. 4000 P.S.I. 5000 P.S.I. 6000 P.S.I. 8000 P.S.I. 10000 P.S.I.
BAR
SIZE
Lcd Ltd Lcd Ltd Lcd Ltd Lcd Ltd Lcd Ltd Lcd Ltd
#4
#5
#6
#7
#8
#9
#10
#11
#14
#18
TENSION SPLICE LENGTH SCHEDULE
3000 P.S.I. 4000 P.S.I. 5000 P.S.I. 6000 P.S.I. 8000 P.S.I. 10000 P.S.I.
BAR
SIZE
TOP
BARS
#4
#5
#6
#7
#8
#9
#10
#11
#14
#18
LAP SPLICE, NOT PERMITTED; USE MECH. SPLICES PER ACI 318, SECTION 12.14.3
OTHER
BARS
TOP
BARS
OTHER
BARS
TOP
BARS
OTHER
BARS
TOP
BARS
OTHER
BARS
TOP
BARS
OTHER
BARS
TOP
BARS
OTHER
BARS
DRAWING NUMBER PLATE
SCALE:
DATE: SHEET:
WASHINGTON AQUEDUCT
THIRD HIGH RESERVOIR, WASHINGTON, DC
MAINTENANCE AND IMPROVEMENTS
NOVEMBER 2019
THIRD HIGH RESERVOIR
Nova Consulting
U.S. ARMY ENGINEER DISTRICT, BALTIMORE
CORPS OF ENGINEERS
BALTIMORE, MARYLAND
HAROLD V. AIKEN, PE
AS SHOWN
80.3-5.14 14
C-11
PRESSURIZED MANHOLE DETAIL
PRESSURIZED PLATE DETAIL
GENERAL SHEET NOTES
GENERAL:
1. MANHOLE IS DESIGNED FOR A MAXIMUM PRESSURE OF 20 PSI.
CONCRETE:
1. CONCRETE DESIGN AND REINFORCEMENT SHALL BE IN ACCORDANCE WITH "CODE
REQUIREMENTS FOR ENVIRONMENTAL ENGINEERING CONCRETE STRUCTURES"
(ACI 350-06) AND "SPECIFICATIONS FOR STRUCTURAL ENVIRONMENTAL CONCRETE
STRUCTURES" (ACI 350.5).
2. ALL CONCRETE SHALL BE FROST RESISTANT NORMAL WEIGHT CONCRETE (145
PCF) WITH 5% TOTAL AIR CONTENT & SHALL ACHIEVE A 28-DAY COMPRESSIVE
STRENGTH (F'c) OF 4000 PSI. THE DESIGN MIX SHALL HAVE A MAXIMUM
WATER-CEMENT RATIO OF 0.42 BY WEIGHT, & A MAXIMUM OF 5 BAGS OF CEMENT IN
EA. CUBIC YARD OF CONCRETE. SUBMIT PROPOSED MIX DESIGN FOR REVIEW
PRIOR TO FIELD POURING. MIX SHALL BE IDENTIFIED BY MIX NUMBER OR OTHER
POSITIVE IDENTIFICATION.
3. ALL CEMENT SHALL CONFORM TO ASTM C150, TYPE 1 & CONCRETE MAXIMUM
AGGREGATE SIZE SHALL BE 3/4" FOR FOOTINGS, WALLS, BEAM & SLABS
CONFORMING TO ASTM C33.
4. FOR ALL CONCRETE TO BE PLACED IN SLABS (INCLUDING SLABS ON GRADE) AND
WALL PANELS, THE SLUMP SHALL NOT EXCEED 4" (±1"). NO WAIVERS OF THIS
REQUIREMENT SHALL BE CONSIDERED. SLUMP FOR PUMPED CONCRETE SHALL
NOT EXCEED 7(±1")".
5. PLACING OF CONCRETE IN ALL REINFORCED COLUMNS AND WALLS SHALL BE IN
EQUAL LIFTS NOT EXCEEDING 7'-6" IN HEIGHT. ALL DOWELS FOR COLUMNS AND
WALLS SHALL BE SECURED IN POSITION PRIOR TO CONCRETING.
6. ALL CONCRETE STRUCTURAL COMPONENTS SHALL HAVE ITS STRENGTH TESTED IN
ACCORDANCE WITH ASTM STANDARDS & ACI 350-06. A MINIMUM OF FOUR TEST
CYLINDERS MUST BE TAKEN EVERY 50 CUBIC YARDS OR LESS OF CONCRETE
PRIOR TO POURING. TESTS SHALL BE MADE FOR 7 DAYS, TWO AT 28 DAYS & ONE
HELD IN RESERVE. CONTRACTOR SHALL PROVIDE THE STRUCTURAL ENGINEER'S
OFFICE COPIES OF THE CONCRETE TEST RESULTS FOR REVIEW, AS WELL AS
COPIES OF THE CONCRETE MIX DESIGN ALREADY APPROVED PRIOR TO USE.
7. MINIMUM CONCRETE COVER TO REINFORCING STEEL SHALL BE IN ACCORDANCE
WITH ACI 350-06 AND SHALL BE AS FOLLOWS:
ELEMENT: BOTTOM: TOP: SIDES:
FOUNDATION 3'' 2'' 2''
COLUMNS/WALLS - 2'' 3'' & 2''
SLAB ON GRADE 3'' 2'' 2''
EXTERIOR STRUCT. SLAB 2'' 2'' 2''
8. WALL & SLAB OPENINGS SHALL BE MADE BY BLOCKING BY INSTALLING THE
SLEEVES IN THE FORMWORK PRIOR TO PLACING CONCRETE. NEITHER CORE
DRILLING NOR CHIPPING OF ANY TYPE WILL BE PERMITTED. THE LOCATION OF ALL
OPENINGS SHALL BE COORDINATED WITH THE CIVIL, PLUMBING, ELECTRICAL &
MECHANICAL DRAWINGS.
9. IF REQUIRED, PROVIDE SLEEVES FOR PLUMBING AND ELECTRICAL OPENINGS IN
CONCRETE BEFORE PLACING IT. DO NOT CUT ANY REINFORCING WHICH MAY
CONFLICT. NOTIFY THE STRUCTURAL ENGINEER IN ADVANCE OF CONDITIONS NOT
SHOWN ON THE DRAWINGS.
10. IF APPLICABLE, CONCRETE ON EXPOSED BALCONIES, SLABS, BEAMS AND STAIRS
SHALL HAVE THE TOP SURFACE COATED WITH "ALKYL-ALKYOXY SILANE SEALER"
OR ENGINEER-APPROVED EQUAL.
11. THE CONTRACTOR SHALL EVACUATE ALL WATER FROM WITHIN FORMWORK
BEFORE PLACEMENT OF ANY CONCRETE. AFTER DEWATERING AND BEFORE
PLACING CONCRETE, RINSE THE REINFORCING STEEL CLEAN AND FREE OF ALL
DELETERIOUS MATERIAL.
12. THE MAXIMUM TIME ALLOWED FROM THE TIME THE MIXING WATER IS ADDED UNTIL
IT IS DEPOSITED IN ITS FINAL POSITION SHALL NOT EXCEED 1.5 HOURS (90 MINS.). IF
FOR ANY REASON THERE IS A LONGER DELAY, THE CONCRETE MUST BE
DISCARDED.
REINFORCING STEEL:
1. TO BE NEW BILLET STEEL CONFORMING TO THE LATEST ASTM A615 GRADE 60
SPECIFICATIONS, FABRICATED IN ACCORDANCE WITH MANUAL OF STANDARD
PRACTICE OF THE CRSI & PLACED IN ACCORDANCE WITH ACI 315 & ACI MANUAL OF
STANDARD PRACTICE.
2. COLUMN REINFORCEMENT: DOWELS TO BE SAME SIZE AND NUMBER AS VERTICALS
ABOVE. LAP 36 BAR DIAMETER OR MINIMUM OF 18" U.O.N. PROVIDE STANDARD
HOOKS FOR ALL VERTICAL REINFORCEMENT AT NON-CONTINUOUS COLUMNS.
3. ALL REINFORCING STEEL SHALL BE TIED DOWN AND INDEPENDENTLY SUPPORTED
ON CHAIRS AND SUPPORT BARS. REINFORCEMENT SHALL BE FREE OF MUD OIL OR
OTHER NONMETALLIC COATINGS THAT ADVERSELY AFFECT BONDING CAPACITY.
4. ALL DOWELS FOR COLUMNS AND WALLS TO BE SECURED IN POSITION PRIOR TO
CONCRETING. DRILLING OR PUSHING THE DOWELS INTO POSITION IN WET
CONCRETE IS NOT PERMITTED.
5. WELDED WIRE FABRIC (W.W.F.) SHALL CONFORM TO ASTM A-185. MINIMUM LAP OF
W.W.F. SHALL BE 6 IN. OR ONE FULL MESH, WHICHEVER IS GREATER.
6. ALL REINFORCING BARS MARKED "CONTINUOUS" SHALL BE LAPPED 36 BAR DIA. AT
SPLICES AND CORNERS UNLESS OTHERWISE NOTED. LAP CONTINUOUS TOP BARS
AT CENTER BETWEEN SUPPORTS AS REQUIRED. TERMINATE CONTINUOUS BARS
AT NON-CONTINUOUS ENDS WITH STANDARD HOOKS. U.O.N.
7. ALL WALLS AND COLUMNS SHALL BE DOWELED INTO FOOTINGS, WALLS, BEAMS,
OR SLABS WITH BARS OF THE SAME SIZE AND SPACING AS THE BARS ABOVE. USE
A (30) BAR DIAMETER LAP EXCEPT WHERE SPECIFICALLY INDICATED.
8. ALL REINFORCEMENT SHALL BE BENT COLD, UNLESS OTHERWISE PERMITTED BY
THE PROFESSIONAL ENGINEER IN WRITING. ALL TIES SHALL HAVE A 135 DEGREE
HOOKS.
9. ALL NEW REINFORCING STEEL THAT WILL BE WELDED SHALL MEET THE
REQUIREMENTS OF ASTM A706 GRADE 60 DEFORMED BARS.
SCALE: 1/2"=1'-0"
0 42
AutoCAD SHX Text h ON EACH SIDE OF THE COLUMN (ACI 13.5.3.2 AND 13.5.3.4).
AutoCAD SHX Text
FACE OF CONCRETE
AutoCAD SHX Text
STANDARD HOOK
AutoCAD SHX Text
REV
AutoCAD SHX Text
DATE
AutoCAD SHX Text
DESCRIPTION
AutoCAD SHX Text
BY
AutoCAD SHX Text US Army Corps
AutoCAD SHX Text of Engineers
AutoCAD SHX Text
A/E PRINCIPAL
AutoCAD SHX Text
SEAL:
AutoCAD SHX Text
APPROVED:
AutoCAD SHX Text
CIVIL
AutoCAD SHX Text
PRESSURIZED MANHOLE STRUCTURE DETAILS
AutoCAD SHX Text
SCALE : 1/2''=1'-0''
AutoCAD SHX Text C-09
AutoCAD SHX Text
AutoCAD SHX Text
SCALE : NTS
AutoCAD SHX Text C-11
AutoCAD SHX Text
AutoCAD SHX Text N
AutoCAD SHX Text N
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text 3/21
AutoCAD SHX Text
ADDENDA #1
AutoCAD SHX Text
HVA
AutoCAD SHX Text
AutoCAD SHX Text
| Sheets and Views |
| C-11 |
File details come from the government source that posted it. Updated .