250036C001 OMD Salem Armory Backup Generator Dwgs_PS.pdf
PDF 875 KB Posted
- Attached to
- 17th Street Armory Standby Generator addition
- Solicitation number
- S-24800-00017710
- Issued by
- Oregon
About this file
This is a mechanical construction drawing for the City of Salem's 17th Street Armory Standby Generator addition project, prepared by CIDA, P.C., an architecture, engineering, planning, and interiors firm based in Portland, Oregon. The project involves the installation of a new backup generator system with fuel tank at the Salem Armory located at 2310 17th Street NE, Salem, Oregon 97301. The mechanical plan details the generator pad foundation requirements, including a 6-inch reinforced concrete slab with #4 rebar at 18-inch centers, undisturbed native soil or engineered fill compacted to 95 percent per ASTM D 1557, and proper drainage slope. The generator unit weighs a maximum of 5,225 pounds, while the fuel tank with enclosure weighs up to 6,863 pounds and holds a maximum volume of 1,420 gallons of diesel fuel. The installation requires ten stainless steel Simpson Titen HD anchors (1/2 inch by 4 inches) distributed equally on each side of the unit to secure the generator to the concrete pad.
The design adheres to the 2025 Oregon Structural Specialty Code with specific engineering parameters including a basic wind speed of 107 miles per hour (exposure category B), seismic design category D with importance factor 1.5 for risk category IV facilities, and lateral forces calculated at 0.36 times equipment weight for ground-mounted equipment. Concrete specifications require a minimum compressive strength of 2,500 pounds per square inch at 28 days, mixed per ACI 318 standards with a maximum water-to-cement ratio of 0.58 and slump of 4 inches plus or minus 1 inch. The project includes a special inspection program for concrete and anchor installation, with all inspections to be conducted by a certified special inspector from an established testing agency in accordance with 2025 OSSC Chapter 17. The drawing was issued on August 5, 2026, as part of the permit set with job number 260164.01.
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Other files
| File | Type | Posted |
|---|---|---|
| 250036C001 OMD Salem Armory Backup Generator Specs_PS.pdf | ||
| ITB 250036C001 final for posting.pdf |
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Text version
(E) WAREHOUSE
(E) PAVEMENT
(E) AUDITORIUM
(E) PAVEMENT
KEY PLAN
1/32" = 1'-0"S1.1
NORTH
S1.1
OUTLINE OF GENERATOR/TANK ON
(N) CONCRETE PAD
M
IN
EDGE OF (N) CONCRETE PAD
GENERATOR PAD PLAN
3/8" = 1'-0"S1.1
1'-0" MIN.
ANCHORS PER 2/S1.1
1/4"1/4"
1/4"
1/4"
SLOPE SLAB DOWN FROM EDGE OF
TANK BASE FOR DRAINAGE
9'-0" MIN.
GENERATOR UNIT AT SLAB
3/4" = 1'-0"S1.1
8"
1'-0" MIN. UNDISTURBED NATIVE SOIL OR
ENGINEERED FILL COMPACTED TO
95 % RELATIVE TO ASTM D 1557.
6" CONCRETE SLAB
REINFORCED WITH #4 AT
18" O.C. EACH WAY
--TURN BARS DOWN INTO
THICKENED EDGE #4 AT THICKENED EDGE
JOB NO. 260164.01
/0
/2
P E R
M
IT
S E T
C 2026 CIDA, P.C./CIDA ALL RIGHTS RESERVED
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ARCHITECTURE
ENGINEERING
P L A N N I N G
I N T E R I O R S
N E W
M E C
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AREA OF WORK
SEE 1/S1.1
2025 OREGON STRUCTURAL SPECIALTY CODE, OSSC 2025
CODE
DESIGN CRITERIA
WIND LOADS:
BASIC WIND SPEED (3 SECOND GUST) = 107 MPH
EXPOSURE CATEGORY = B
F = 20.56 PSF 1.0*W
EARTHQUAKE:
SEISMIC PARAMETERS:
RISK CATEGORY IV
IMPORTANCE FACTOR = 1.5
MAPPED: SS = 0.94 S1 = 0.38 SITE CLASS: D
DESIGN: SDS = 0.8, SEISMIC DESIGN CATEGORY = D
LATERAL FORCES:
FP = 0.36*WEIGHT FOR GROUND MOUNTED EQUIPMENT
CONCRETE
1. MINIMUM COMPRESSIVE STRENGTH AT 28 DAYS: 2500 PSI
2. CONCRETE MIX DESIGN PER ACI 318 CHAPTER 5 (BUILDING CODE REQUIREMENTS FOR REINFORCED
CONCRETE)
3. MAXIMUM W/C RATIO FOR FOUNDATIONS 0.58
4. MAXIMUM SLUMP 4" PLUS OR MINUS 1".
5. SAWCUT CONTROL JOINTS 1/4 SLAB DEPTH.
6. SIMPSON TITEN HD REFER TO ESR-2713 FOR ADDITIONAL INSTALLATION INSTRUCTIONS.
CONTINUOUS
1) -
SPECIAL INSPECTION PROGRAM
CONCRETE
ITEM
X
REFERENCED STANARDPERIODIC(1) (1)
PROGRAM FOOTNOTES:
(1.)
EXPANSION/SCREW ANCHOR
INSTALLATION
ICC-ES REPORT FOR SPECIFIC
ANCHOR
THE ITEMS CHECKED WITH AN "X" SHALL BE INSPECTED IN ACCORDANCE WITH 2025 OSSC CHAPTER 17 BY A CERTIFIED SPECIAL INSPECTOR FROM AN ESTABLISHED TESTING AGENCY. FOR MATERIAL SAMPLING AND TESTING REQUIREMENTS, REFER TO THE MATERIAL SAMPLING AND TESTING SECTION, THE PROJECT SPECIFICATIONS AND THE SPECIFIC GENERAL NOTES SECTIONS. THE TESTING AGENCY SHALL SEND COPIES OF ALL STRUCTURAL TESTING AND INSPECTION REPORTS DIRECTLY TO THE ARCHITECT, ENGINEER, CONTRACTORS AND BUILDING OFFICIAL ANY MATERIALS WHICHFAIL TO MEET THE PROJECT SPECIFICATIONS SHALL IMMEDIATELY BE BROUGHT TO THE ATTENTION OF THE ARCHITECT.
SPECIAL TESTING REQUIREMENTS APPLY EQUALLY TO ALL BIDDER DESIGNED COMPONENTS.
S1.1
MECHANICAL PLAN
AutoCAD SHX Text
(5) 1/2" x4" STAINLESS 5) 1/2" x4" STAINLESSSTEEL SIMPSON TITEN HD EA. SIDE OF UNIT (10) TOTAL
AutoCAD SHX Text
BOLT GENERATOR TO FUEL TANK PER MANUFACTURER
AutoCAD SHX Text
(N) 6863 LB MAX. WEIGHT FUEL TANK PLUS UNIT ENCLOSURE
AutoCAD SHX Text
(N) 5,225 LB MAX. WEIGHT GENERATOR UNIT
AutoCAD SHX Text
(N) 1420 GAL MAX. VOLUME FUEL INSIDE TANK (11,800 LB)
| R&W Salem Generator 2026_0807.pdf |
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