Attachment_13-5_-_Fire_Protection_Basis_of_Design.pdf

Submitted by:

CDM SMITH

1301 Gervais Street Columbia, SC 29201

(803) 758-4500

(803) 758-4561 fax

13 December 2013

Project Number VLSB 06-0020 Install Elevator for ADA/

Fire Doors/Sprinklers/HVAC Building 216

DEPARTMENT OF THE AIR FORCE

20th CONTRACTING SQUADRON

SHAW AIR FORCE BASE, SOUTH CAROLINA

NARRATIVE

100% Revised Design Submittal

Solicitation No. FA480319BA003 Fire Protection_Attachment 13-05

VLSB, 06-0020, Repair CONS/LRS B216

FIRE PROTECTION BASIS OF DESIGN

Design Criteria

The following criteria references have been used in the design of this project:

UFC 3-600-01 Fire Protection Engineering for Facilities

UFC 4-021-01 Design and O&M: Mass Notification Systems

NFPA 10 Standard for Portable Fire Extinguishers (2010)

NFPA 13 Installation of Sprinkler Systems (2010)

NFPA 24 Installation of Private Service Fire Mains and Their Appurtenances (2010)

NFPA 72 National Fire Alarm Code (2010)

NFPA 101 Life Safety Code (2009)

IBC International Building Code (2009)

Code Review

OCCUPANCY CLASSIFICATION (IBC CHAPTER 3):

OCCUPANCY: EXISTING BUSINESS, GROUP B (IBC

304.1, NFPA 101 CHAPTER 39)

INCIDENTAL USE AREAS (IBC TABLE 508.2.5):

ROOMS WITH BOILERS WHERE THE

LARGEST PIECE OF EQUIPMENT IS

OVER 15 PSI AND 10 HORSEPOWER

STORAGE ROOMS OVER 100 SQ. FT.

GENERAL BUILDING HEIGHTS AND AREAS (IBC CHAPTER 5):

MAXIMUM ALLOWABLE HEIGHT AND BUILDING AREAS PER TABLE 503:

TYPE OF CONSTRUCTION: TYPE IIB

MAX ALLOWABLE HEIGHT, SPRINKLERED =

75 FEET MAX

ALLOWABLE NUMBER OF STORIES

SPRINKLERED = 4 STORIES, BUSINESS

MAX ALLOWABLE AREA PER FLOOR,

SPRINKLERED =

BUSINESSS = 69,000 SQ. FT (AREA

MOD. PER IBC 506.1)

AREA MODIFICATION - NOT REQUIRED

PROVIDED HEIGHT AND BUILDING AREAS:

BUILDING HEIGHT = 51'-8"

NUMBER OF STORIES = 3

MAXIMUM FLOOR AREA = 11,949 SQ. FT.

TYPES OF CONSTRUCTION (IBC CHAPTER 6 & UFC 3-600-01):

CONSTRUCTION CLASSIFICATION (IBC 602): TYPE IIB

MIXED CONSTRUCTION: NO

Solicitation No. FA480319BA003

FIRE RESISTANT CONSTRUCTION (IBC CHAPTER 7, UFC 3-600-01, NFPA 101):

SPRINKLERED: YES TYPE: NFPA 13

FIRE-RESISTANCE RATING REQUIREMENTS FOR BUILDING ELEMENTS (IBC TABLE 601):

ASSEMBLIES/COMPONENTS HOURLY RATINGS DESIGN

PRIMARY STRUCTURAL FRAME 0 N/A

BEARING WALLS - EXTERIOR 0 N/A

BEARING WALLS - INTERIOR 0 N/A

NON-BEARING WALLS & PARTITIONS - EXTERIOR 0 N/A

NON-BEARING WALLS & PARTITIONS - INTERIOR 0 N/A

FLOOR CONSTRUCTION 0 N/A

ROOF CONSTRUCTION 0 N/A

FIRE RESISTANCE RATING REQUIREMENTS FOR EXTERIOR WALLS BASED ON FIRE SEPARATION

DISTANCE (IBC TABLE 602):

X < 5 FT 1 HOURS 5 FT ≤ X < 10 FT 1 HOUR

10 FT ≤ X < 30 FT 0 HOURS X ≥ 30 FT 0 HOURS

FIRE BARRIERS (IBC, NFPA 101):

ASSEMBLIES/COMPONENTS HOURLY RATINGS

SHAFT ENCLOSURES (NFPA 101-8.6) 1 HR

EXIT ENCLOSURES (NFPA 7.1.3.2, 7.2.2.5)

CONNECTING 3 OR FEWER STORIES 1 HR

EXIT PASSAGEWAYS (NFPA 7.1.3.2.2) SAME AS EXIT ENCLOSURE

EXIT ACCESS CORRIDORS (NFPA 7.1.3.1, 12, & 38.3.6.1(3)) 0 HR (SPRINKLERED)

HORIZONTAL EXITS (NFPA 8.3.4.2) N/A

INCIDENTAL USE AREAS (IBC TABLE 508.2.5) 0 HR (SPRINKLERED)*

NOTE: THE INCIDENTAL USE AREAS MUST BE SEPARATED FROM THE REMAINDER OF

THE BUILDING BY CONSTRUCTION CAPABLE OF RESISTING THE PASSAGE OF

SMOKE.

OCCUPANCY SEPARATION: N/A

OPENING PROTECTIVES (NFPA TABLE 8.3.4.2 & UFC 3-600-01):

COMPONENT WALLS & FIRE DOOR ASSEMBLIES FIRE WINDOW

PARTITIONS ASSEMBLIES

ELEVATOR HOISTWAY & 1 HR 1 HR NP

EQUIPMENT ROOM

VERTICAL SHAFTS* 1 HR 1 HR NP

NOTE: VERTICAL SHAFTS INCLUDES STAIRWAYS, EXITS, AND REFUSE CHUTES

FIRE BARRIERS 1 HR 3/4 HR 3/4 HR

HORIZONTAL EXITS N/A N/A N/A

EXIT ACCESS CORRIDORS N/A N/A N/A

SMOKE BARRIERS N/A N/A N/A

CONCEALED SPACES (IBC 717.2):

FIREBLOCKING (IBC 717.2) - NOT REQUIRED DUE TO NON-COMBUSTIBLE CONSTRUCTION

DRAFTSTOPPING IN FLOORS (IBC 717.3) - NOT REQUIRED DUE TO NON-COMBUSTIBLE

CONSTRUCTION

Solicitation No. FA480319BA003

INTERIOR FINISHES (NFPA 101):

EXISTING BUSINESS - INTERIOR WALL & CEILING FINISH REQUIREMENTS (NFPA 39.3.3.2)

EXITS AND EXIT ACCESS CORRIDORS: CLASS A

OTHER SPACES: CLASS A, CLASS B, OR CLASS C

MAX ALLOWABLE FLAME SPREAD/SMOKE DEVELOPMENT INDEXES (UFC 3-600-01):

CONCEALED INSULATION (UFC 3-600-01, 2-7.1): FLAME 75 SMOKE 160

EXPOSED INSULATION: FLAME 25 (IBC 719.2) / SMOKE 150 (UFC 3-600-01, 2-7.1)

INSULATION @ PLENUMS (IBC 719.1, IMC 602.2.1): FLAME 25 / SMOKE 50

MEANS OF EGRESS - NFPA 101:

EGRESS WIDTH PER PERSON SERVED (NFPA TABLE 7.3.3.1):

STAIRWAYS 0.3 INCH

LEVEL COMPONENTS AND RAMPS 0.2 INCH

MINIMUM CLEAR OPENING OF EXIT DOORS (NFPA 7.2.1.2.4) = 34 IN.

EGRESS WIDTH - PROVIDED (NFPA 7.3.3.3):

FIRST FLOOR

2 EXITS @ 34 INCHES / 0.2 INCHES PER PERSON = 340 PERSONS

1 EXIT @ 68 INCHES / 0.2 INCHES PER PERSON = 340 PERSONS

TOTAL 680 PERSONS

SECOND FLOOR

4 EXITS @ 34 INCHES / 0.2 INCHES PER PERSON = 680 PERSONS

3 STAIRS @ 40 INCHES / 0.3 INCHES PER PERSON = 399 PERSONS

1 STAIRS @ 50 INCHES / 0.3 INCHES PER PERSON = 173 PERSONS

TOTAL STAIRS 572 PERSONS (STAIRS)

THIRD FLOOR

3 EXITS @ 34 INCHES / 0.2 INCHES PER PERSON = 510 PERSONS

2 STAIRS @ 40 INCHES / 0.3 INCHES PER PERSON = 266 PERSONS

1 STAIRS @ 50 INCHES / 0.3 INCHES PER PERSON = 173 PERSONS

TOTAL STAIRS 439 PERSONS (STAIRS)

OCCUPANCY LOAD (NFPA TABLE 7.3.1.2):

FIRST FLOOR

BUSINESS (1 PERSON/100 GROSS SQ. FT.) 120 PERSONS

SECOND FLOOR

BUSINESS (1 PERSON/100 GROSS SQ. FT.) 111 PERSONS

CONFERENCE ROOM 219 (1 PERSON/15 NET SQ. FT.) 61 PERSONS

THIRD FLOOR

BUSINESS (1 PERSON/100 GROSS SQ. FT.) 76 PERSONS

CONFERENCE ROOM 315 (1 PERSON/15 NET SQ. FT.) 37 PERSONS

DOOR SWING (NFPA 7.2.1.4.2):

DOOR SHALL SWING IN THE DIRECTION OF EGRESS WHEN SERVING AN OCCUPANT LOAD

OF 50 OR MORE PERSONS.

PANIC AND FIRE EXIT HARDWARE (NFPA 101):

EACH DOOR IN A MEANS OF EGRESS FROM A GROUP A OCCUPANCY HAVING AN

OCCUPANT LOAD OF 50 OR MORE SHALL NOT BE PROVIDED WITH A LATCH OR LOCK

UNLESS IT IS A PANIC HARDWARE OR FIRE EXIT HARDWARE.

MINIMUM NUMBER OF EXITS (NFPA 101 7.4.1.1): NOT LESS THAN 2 EXITS PER STORY.

NUMBER OF EXITS PROVIDED: FIRST FLOOR = 3 EXITS

SECOND FLOOR = 4 EXITS

THIRD FLOOR = 2 EXITS

REQUIRED PROVIDED

MINIMUM CLEAR CORRIDOR/PASSAGEWAY

WIDTH (NFPA 12.2.3.5 & 38.2.3.2) = 44 IN. 6 FT.

MAXIMUM ALLOWABLE DEAD END CORRIDOR

LENGTH (NFPA 39.2.5.2.1) = 50 FT. NONE

MAXIMUM ALLOWABLE COMMON

PATH OF TRAVEL (NFPA 39.2.5.3.1) = 100 FT. 29 FT.

MAXIMUM TRAVEL DISTANCE TO

EXITS (NFPA 39.2.6.3) = 300 FT. 108 FT

PORTABLE FIRE EXTINGUISHERS (NFPA 10):

CLASSIFICATION OF HAZARDS (NFPA 10 1-5.1 & 1-5.2): LIGHT (LOW) HAZARD

FIRE EXTINGUISHER SIZE AND PLACEMENT FOR CLASS A HAZARDS (NFPA 10 3-2):

MINIMUM RATED SINGLE EXTINGUISHER = 2-A

MAXIMUM FLOOR AREA PER UNIT OF A = 3,000 SQ. FT. (LIGHT), 1,500 SQ. FT. (MODERATE)

MAXIMUM FLOOR AREA FOR EXTINGUISHER = 11,250 SF.

MAXIMUM TRAVEL DISTANCE TO FIRE EXTINGUISHER = 75 FT.

ALL FIRE EXTINGUISHERS SHALL BE 10 ABC MULTI-PURPOSE DRY CHEMICAL TYPE

Fire Suppression System

This facility has been fully protected by an approved automatic fire sprinkler system. The system was designed for residential, light and ordinary hazard occupancies in strict accordance with the required and advisory portions of NFPA 13 and UFC 3-600-01. Sprinkler rate of applications shall be 0.10 gpm/sf for light hazard areas and 0.15 gpm/sf for ordinary hazard areas. Area of application shall be 3,000 sf.

Reductions in operating areas per NFPA 13 are allowed. An exterior hose allowance of 250 gpm for light hazard and 500 gpm for ordinary hazard has been included.

The water supply enters the existing Mechanical Room. The existing underground lead-in will be relocated due to conflict with the new elevator foundation location. This existing riser which serves the adjacent warehouse will be modified by adding a header and outlet for the new riser. A dedicated floor control valve assembly consisting of a supervised control valve, check valve, and water flow switch is provided for each floor of the building. Quick response sprinklers have been used in all light and ordinary hazard occupancies.

An inspector’s test connection will be provided at the zone control valve assembly for each floor. Test valves as well as all auxiliary drain valves are located in accessible areas.

The fire department connection is existing and will be reused.

A forward flow test header for the existing double check backflow preventer has been provided.

A flow test taken 7/6/11 at fire hydrants in the building parking lot on Cullen Street indicates a flow of 900 gpm at a residual pressure of 44 psi with a static pressure of 640psi. This supply is adequate to supply the sprinkler systems without the aid of a fire pump.

Fire Alarm System

A complete, electrically supervised, fully addressable, manual and automatic fire alarm system with 80 character programmable alphanumeric displays has been provided. The system is in full compliance with the required and advisory portions of NFPA 72 National Fire Alarm Code and UFC 3-600-01. The FACP will be Monaco.

The new fire alarm system provides manual and automatic detection, manual pull stations, smoke detectors (spot-type and duct mounted), and heat detectors. Audible and visual notification appliances are provided throughout the building. The fire alarm system automatically transmits supervisory, trouble, and alarm signals to the fire department via the radio master box transmitter. The Fire alarm panel is a modular type installed in steel cabinet with hinged door and cylinder lock and shall be Monaco with integral radio transceiver to match Base standard. Minimum 60 hours of standby rechargeable batteries have provided.

All wiring will be in metallic conduit. Conduit in finished areas has been concealed. Pigtail or "T" tap connections to, evacuation alarm bells, speakers, and fire warning lights has not been used. All conductor connections use screw terminals. Use of wire nuts, crimped connectors, or twisting of conductors is not included.

Manual pull stations have been provided at each stair entrance on each floor. All pull stations are the “key and lock” type with keys that match the fire alarm control panel. Screw driver or Allen wrench opening-type pull stations have not been used.

Audible notification for general building alarms (e.g., sprinkler flow switch activation, common area smoke detector, manual pull stations, and heat detectors) is via the speaker/strobes.

The signaling line and notification appliance circuits (SLCs and NACs) have been sized to use a maximum of 75 percent of their rated capacity to allow for future system expansion. The contractor will install additional SLCs and NACs as applicable. All circuits are Class B with the outgoing conductors in a separate conduit from the return conductors.

Activation of any valve tamper switch, including exterior PIV’s, initiates a dedicated sprinkler supervisory signal per NFPA 72.

Line voltage surge arresters to suppress all voltage transients that might damage fire alarm panel/transmitter components have been provided. Units are wired in series with the power supply of the protected equipment with screw terminations. One acceptable product is a model HSP-121BT-1RU as manufactured by Edco of Florida (Ocala, FL).

Low voltage surge arresters to suppress all voltage transients on initiating, signaling, transmitter tripping, and auxiliary control circuits have been provided. One acceptable product is a model P264 (audible/visual device circuits) and model PC-642030XLC (initiating circuits) as manufactured by Edco Inc. of Florida (Ocala, FL).

Mass Notification System

A manual within the building Mass Notification System has been provided based on Monaco components.

The system is separate from the fire alarm system as required by UFC 4-021-01. An autonomous control panel is provided for interface with the fire alarm control panel. Speaker / strobes have been located through out the building and designed to meet the audibility limits required by NFPA 72. A selection of eight prerecorded messages has been provided for different levels of emergency notification. A microphone has been provided at two locations, the FACP and another location to be determined.

Fire Extinguishers

Portable fire extinguishers have been provided in accordance with NFPA10, NFPA 101. All fire extinguishers will be mounted in a secure manner to enable occupants to extinguish fire in the incipient stages. The following will be provided:

One 4.5kg (10 Pounds) tri-class (ABC) unit in all common areas in closed front recess mount fire extinguisher cabinet. Cabinet shall have glass or lexan fronts. Cabinets shall be non-locking.

One 4.5kg (10 Pounds) tri-class (ABC) unit in each mechanical, electrical and storage rooms.

Passive Fire Protection Systems

A fire protection design analysis was performed according to UFC 3-600-01, Section 1.5. Life Safety drawings are in accordance with NFPA 101. Provision and construction compliance of all passive fire protection systems in the facility (proper wall, floor, and ceiling rating, proper use of fireproofing and firestopping systems, protection of openings (coordination of door ratings, hardware, etc) has been verified.

Outline Specifications

The following specifications have been used in the design of this project:

21 13 13.00 20 Wet Pipe Sprinkler System, Fire Protection 28 31 76 Interior Fire Alarm and Mass Notification System

Hydraulic Calculation – Third Floor Offices

Supply vs. Demand Graph