Amd 01 - Drawings A-210_M-101_M103.pdf
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- Attached to
- Big Bend Powerhouse Elevator No. 2 Rehab Federal contract opportunity
- Solicitation number
- W9128F24R0023
About this file
This document contains drawings and specifications related to the rehabilitation of Powerhouse Elevator No. 2 at the Big Bend Dam in South Dakota. The key details are:
The scope of work includes demolition and replacement of various elevator components, such as the equipment, controls, hoist mechanism, and hoisting system, in order to bring the elevator system up to code. The existing elevator cab and landing doors will be reused, while the cab door will be replaced. The machine room and elevator shaft need to be enclosed with a 2-hour fire-rated wall. Potential hazardous materials, including lead and asbestos, have been identified and will need to be properly addressed. A site visit is scheduled for June 18, 2024, and attendees must provide certain information by June 17, 2024. The solicitation number is W9128F24R0023, and the federal agency is the Department of the Army Corps of Engineers, Engineering District Omaha.
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Text version
FF LEVEL 1
1363' - 0"
REUSE AND REFURBISH EXIST. LANDING DOORS
AND DOORWAY FRAMES - SEE NOTE 2 AND 3
REPLACE ELEVATOR CAB DOOR - SEE NOTE 2 AND 3
REUSE EXIST. CALL ASSEMBLY
2" M
IN
4'
NEW FLOOR DESIGNATIONS - SEE NOTE 1
REUSE EXIST. HALL SIGNALS
B.O PIT
1357' - 3"
FF LEVEL 1
1363' - 0"
FF LEVEL 2
1383' - 0"
FF LEVEL 3
1403' - 0"
FF LEVEL 4
1429' - 0"
FF LEVEL 5
1440' - 6"
T.O SHAFT
1453' - 9 123/128"
REMOVE EXISTING EMERGENCY/FEO LOCKBOX
FEO DESIGNATED
LANDING
5'
0"
EXHAUST VENTILATOR - SEE MECH
DUCT - SEE MECH
9'
4"
NEW EXISTING EMERGENCY/FEO LOCKBOX
REUSE EXISTING CAR
POSITION INDICATORS
REUSE EXISTING LIGHTING IF COMPLIANT WITH
SPECS,
AND PROVIDE NEW CEILING TO MEET
LIGHTING REQUIREMENTS IN SPECS.
1'
3" M
IN
. 4'
0"
M
AX
REMOVE AND REUSE EXISTING CAR
OPERATING/SERVICE PANEL
NEW LOCATION OF CAR
OPERATING/SERVICE PANELS
NEW TWO-WAY COMMUNICATION SYSTEM (TYP.)
REUSE EXISTING PHONE LINE IN PARALLEL
TO NEW SYSTEM
1 US Army Corps of Engineers ®
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1/4" = 1'-0"K2 TYPICAL ELEVATOR LOBBY ELEVATION
1/8" = 1'-0"H9 ELEVATOR LOBBY ELEVATIONS
NOTES:
1. PROVIDE A TACTILE STAR FOLLOWING FLOOR DESIGNATIONS WITH BRAILLE ON BOTH
JAMBS OF ALL ELEVATOR HOISTWAY ENTRANCES, LOCATED 48" MIN. ABOVE THE FINISH FLOOR TO THE BASELINE OF THE LOWEST TACTILE CHARACTER AND 60" MAX. ABOVE THE FINISH FLOOR TO
THE BOTTOM OF THE HIGHEST TACTILE CHARACTER. THESE TACTILE CHARACTERS SHALL BE 2
INCHES IN HEIGHT MIN. AND FOLLOW ABA REQUIREMENTS FOR SIGNS AND BRAILLE.
2. NEW CAB DOOR AND REUSED EXISTING LANDING DOORS MUST OPEN AND CLOSE AUTOMATICALLY.
3. PROVIDE REOPENING DEVICE THAT SHALL STOP AND REOPEN A CAR DOOR AND HOISTWAY
DOOR AUTOMATICALLY IF THE DOOR BECOMES OBSTRUCTED BY AN OBJECT OR PERSON
BETWEEN THE HEIGHT OF 5" TO 29" ABOVE THE FINISH FLOOR. DEVICE SHALL NOT REQUIRE
PHYSICAL CONTACT TO BE ACTIVATED, ALTHOUGH CONTACT IS PERMITTED TO OCCUR BEFORE
THE DOOR REVERSES. DEVICE SHALL REMAIN EFFECTIVE FOR 20 SECONDS MINIMUM.
4. ELEVATOR DOORS SHALL REMAIN FULLY OPEN IN RESPONSE TO A CAR FOR 3 SECONDS MINIMUM.
1/2" = 1'-0"M13 ABA CAR DETAIL
0 1' 2' 4'
0 4' 8' 16'
0 2' 4' 8'
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US Army Corps of Engineers ®
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N.T.S.B1 ELEVATOR MACHINE DEMO/ NEW PLANS
POWERHOUSE KEY PLAN
MECHANICAL KEYNOTES:
REMOVE AND DISPOSE OF THE EXISTING ELEVATOR DRIVE MACHINE AND APPARATUS IN ITS ENTIRETY AND INSTALL NEW MACHINE AND APPARATUS IN THE ELEVATOR MACHINE ROOM AND HOIST WAY. THIS SHALL INCLUDE BUT NOT LIMITED TO
FOLLOWING:
• HOISTING WIRE ROPES (PREFORMED TRACTION STEEL CABLES)
• GEARED DRIVE SYSTEM (MOTOR, ENCODER, BRAKE, TRACTION SHEAVES, SHAFTS, BEARINGS, AND GUARDS, DEFLECTOR SHEAVES, SHAFTS, SELF-LUBRICATED BEARINGS, AND GUARDS (WHERE APPLICABLE), MOUNTING FOR
DEFLECTOR, ETC.)
• WIRE ROPE GRIPPER, PLATE, AND MOUNTING KIT
• ELEVATOR CAB VENTILATOR, MOTOR, POWER AND CONTROL WIRING
• GOVERNOR, ENCODER, TAIL SHEAVE, WIRE ROPE, RETAINER, COUNTERWEIGHT, BUFFERS, PIT CHANNELS, AND ALL
ROLLER GUIDES.
GENERAL NOTES:
NOTE THAT THE EXISTING ELEVATOR HOISTING SYSTEM TO BE REPLACED IS DESIGNED FOR 1,200 LBS CAPACITY WITH 100 FPM TRAVEL SPEED. THE NEW HOISTING SYSTEM TO BE PROVIDED SHALL BE DESIGNED FOR 1,200 LBS CAPACITY WITH 350 FPM IN
ACCORDANCE WITH REQUIREMENTS IN UFC 3-490-06.
PROVIDE ELEVATOR DRIVE MACHINE, HOIST MOTOR, AND MOTOR DRIVE SYSTEM THAT IS DESIGNED TO BE INSTALLED IN AN
ELEVATOR MACHINE ROOM.
THE ELEVATOR MACHINE, MOTOR, AND DRIVE CONFIGURATION AND INSTALLATION DESIGN MUST BE MECHANICALLY AND ELECTRICALLY INTERCHANGEABLE WITH A MINIMUM OF TWO OTHER ELEVATOR MANUFACTURERS' DRIVE MACHINES THAT ARE
READILY AVAILABLE IN THE ELEVATOR INDUSTRY.
IT SHALL BE NOTED THAT NOT ALL ELEVATOR MACHINE COMPONENTS AND APPARATUS SUBJECT TO REPLACEMENT MAY BE SHOWN OR LISTED ON THIS SHEET. CONTRACTOR SHALL FIELD VERIFY THE EXISTING CONDITIONS PRIOR TO COMMENCING WORK
ON SITE.
REFER TO SPECIFICATION SECTION 14 21 23 FOR ADDITIONAL INFORMATION AND REQUIREMENTS FOR ELEVATOR.
1.
2.
3.
4.
5.
PLAN NORTH
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B.O PIT
1357' - 3"
FF LEVEL 1
1363' - 0"
FF LEVEL 2
1383' - 0"
FF LEVEL 3
1403' - 0"
FF LEVEL 4
1429' - 0"
FF LEVEL 5
1440' - 6"
T.O SHAFT
1453' - 9 123/128"
FEO DESIGNATED
LANDING
ELEVATOR
MACHINE
ROOM
ELEVATOR
PENTHOUSE
EXISTING LOUVER FOR
MACHINE SHOP
EXHAUST FAN
SF-1
EF-1
TRANSFER
AIR LOUVER
APPROXIMATE LOCATIONS
(MIDPOINTS OF HOISTWAY DOOR OF
EACH FLOOR) OF DIFFERENTIAL
PRESSURE SENSORS. (TYP. OF 5) .
CONTRACTOR SHALL FINALIZE THE
OPTIMAL ROUTING OF POWER AND
SIGNAL WIRING IN RIGID CONDUITS
FOR EACH DP SENSOR TO THE SF-1
FAN CONTROLLER.
MINIMUM 16 GAUGE GALVANIZED STEEL METAL DUCT (20" X 20")
THRU PENTHOUSE WALL AND DOWNSTREAM OF FAN. PROVIDE
TURNING VANE AT DISCHARGE ELBOW.
MOTORIZED DAMPER (D-1) WITH
MESHED SCREEN
SEAL WALL PENETRATION AIRTIGHT
DIRECT DRIVE TUBE
AXIAL TYPE OR
CENTRIFUGAL INLINE FAN
WITH VFD
STAINLESS STEEL WALL BRACING AND HARDWARE.
INSTALL PER SYSTEM MANUFACTURER' S
RECOMMENDATIONS
A1
M-103
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3/16" = 1'-0"A1 ENLARGED ELEVATOR LOBBY SECTION
N.T.S.H11 ASSEMBLY BAY SECTION A-A
PLAN NORTH
A
A
ELEVATOR SHAFT PRESSURIZATION FAN SCHEDULE
MARK AIRFLOW (CFM)
MOUNTING
HEIGHT EXT. STATIC
SF-1 4000 MAX. 1.0 IN.WC.MIN. 8 FT
MANUFACTURER
COVERAGE
AREA
ELEVATOR SHAFT
COUNT
REMARKS:
1. MOUNT UNIT ACCORDING TO MANUFACTURER'S RECOMMENDATIONS INCLUDING NECESSARY VIBRATION ISOLATORS INSIDE OF ELEVATOR PENTHOUSE STRUCTURE..
2. PROVIDE SMOKE DETECTOR AT FAN DISCHARGE AIR STREAM WHICH WILL AUTOMATICALLY SHUTDOWN THE FAN SYSTEM WHEN SMOKE IS DETECTED WITHIN THE SYSTEM.
3. PROVIDE MESHED SCREEN AND MOTORIZED DAMPER (NORMALLY CLOSED) AT AIR INTAKE.
4. FAN MOTOR SHALL BE PROVIDED WITH VARIABLE FREQUENCY DRIVE (VFD).
5. PROVIDE ELEVATOR HOISTWAY PRESSURIZATION FAN SYSTEM AND ALL CONTROL APPARATUS REQUIRED TO MEET THE FUNCTIONAL REQUIREMENTS OF THE SMOKE CONTROL SYSTEM IN ACCORDANCE WITH IBC 2021, ASME 17.1-2022, AND APPLICABLE NFPA STANDARDS.
REMARK
1,2,3,4,5
SEQUENCE OF OPERATION (SF-1):
1. ELEVATOR HOISTWAY PRESSURIZATION SYSTEM FAN, SF-1 SHALL BE ACTIVATED UPON ACTIVATION OF EITHER THE BUILDING FIRE
ALARM SYSTEM AND/OR THE ELEVATOR LOBBY SMOKE DETECTORS.
2. SF-1 SPEED SHALL BE CONTROLLED BY THE ASSOCIATED VFD TO POSITIVELY PRESSURIZE THE HOISTWAY RELATIVE TO THE FIRE
FLOOR DURING THE FIRE EVENT.
3. THE SYSTEM FAN (SF-1) AND ITS CONTROL SHALL PRESSURIZE THE ELEVATOR HOISTWAY TO MAINTAIN A MINIMUM POSITIVE PRESSURE OF 0.10 IN.WC AND A MAXIMUM POSITIVE PRESSURE OF 0.25 IN.WC WITH RESPECT TO ADJACENT OCCUPIED SPACE ON
ALL FLOORS IN ACCORDANCE WITH IBC 2021.
POWERHOUSE KEY PLAN
0 2' 4' 8' 12'
NOTE: CONTRACTOR SHALL PROVIDE ALL NECESSARY DIFFERENTIAL PRESSURE (DP) SENSORS AND WIRING IN HOISTWAY AND ELEVATOR LANDING AREA ON EACH FLOOR TO CONTROL SF-1 FAN SPEED TO MAINTAIN ABOVE REFERENCED DIFFERENTIAL PRESSSURE RANGE REQUIRED PER IBC 2021.
CONTRACTOR SHALL DETERMINE THE SUITABLE LOCATIONS FOR DP SENSORS, WIRING ROUTE, AND PRESENT SCHEMATIC DIAGRAM ON SHOP DRAWINGS PER SPECIFICATION SECTION 14 21 23. CONTRACTOR SHALL CLEARLY INDICATE PRESSURIZATION SYSTEM RELATED CONTROL DEVICES AND DETAILED CONTROL SCHEMATIC INCLUDING POINTS SUMMARY (INPUT/OUTPUT) ON SHOP DRAWINGS FOR COMPLETE FUNCTIONAL ELEVATOR
HOISTWAY PRESSURIZATION SYSTEM PER CODE REQUIREMENTS.
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| BB97A-210 |
| BB97M-101 |
| Sheets |
| M-101 - ELEVATOR MACHINE DEMO/ NEW PLANS |
| M-103 - ELEVATOR HOISTWAY PRESSURIZATION SYSTEM PLAN |
| BB97M-103 |
| Sheets |
| M-101 - ELEVATOR MACHINE DEMO/ NEW PLANS |
| M-103 - ELEVATOR HOISTWAY PRESSURIZATION SYSTEM PLAN |
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