HomeMy WebLinkAbout040310_alternate_materials_methods_5firstamerican.pdfPlanning & Building Agency
Building & Safety Division
20 Civic Center Plaza
P.O. Box 1988 (M-19)
Santa Ana, CA 92702
(714) 647-5800
www.santa-ana.org
ALTERNATE MATERIALS, ALTERNATE
DESIGN AND METHODS OF
CONSTRUCTION
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Project Address: Project Plan Check # I Df! t,,,.,, 2-0 2 A S
Subject of Alternative or Modification: %�•
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California Building Code (CBC)*
104.2.7 Modifications
1042.8 Alternate Materials
California Electrical Code (CEC)*
❑ 105 Alternate Materials
O 106 Modifications
CODE APPEAL_ SECTION
California Plumbing Code (CPC)*
D 301.2 Alternate Materials & Methods
California Mechanical Code (CMC)*
❑ 105 Alternate Materials
El 106 Modifications
*As amended by the City of Santa Ana ,-
Alternate or Modification Proposed: L
Justification (Attach copies of any references, test reports, expert opinions, etc.)
Requested By:
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Architect/Enfgineer/Contractor Siryynature & Date Building Owner Siryynature &Date y((
.............I....................irar........................... i ..................... iV..
RECOMMENDATION .
Plan Checker: �' Date:-1414Tracking #:
M/ ecommended Submittal Date. Ut
❑ Not Recommended Picked Up By:
Fee: ,$1BO CIO Receipt #.
Reason:
.......................................................................................................................
(BUILDING OFFICIAIJFIRE MARSHAL ONLY)
Approved ❑ Denied ❑ See Attachment
Reason- Z
Building Official/Date Fire Marshal (if applicable)/Date
March 10, 2004
Mr. Fred Heidari
City of Santa Ana Building Department
20 Civic Center Plaza
Santa Ana, CA 92702
Re: First American Corporation Office Buildings
Phase Two (Buildings 4 and 5)
Santa Ana, California
Alternate Materials, Alternate design and Methods of Construction
Dear Mr. Heidari
Robert R. Coffee Architect & Associates (RCA+A) respectfully request a Modification of
Building Construction — Per CBC Section 104.2.8.
A 1-1/2 hour roll down fire door with smoke seals separates the joint elevator / stair #1
vestibule area. (See attached sheet A7.1 & door specifications.) Under normal conditions, the
1-1/2 hour fire / smoke door is to remain in the open position. Only during an emergency will
the elevator lobby doors, stair doors and the 1-1/2 hour roll — down Care / smoke door close
by the activation of smoke detectors and / or fire sprinkler water flow condition. Additional a
note has been added to sheets A6.1, A6.2, A6.3 A6.4, A6.6, A6.7, A6.8 and A6.9 indicating
that the contractor is to provide approved early detection devices throughout the building,
such as smoke and heat detectors in accordance with the manufactures recommendations.
Additionally, we propose that all stair risers and treads (in both buildings) are to be covered
with carpet (no padding) having a minimum class 1— frame spread index of 0 to 25 rating.
Furthermore, the top and bottom treads are to have contrasting color carpet per code.
(Refer to letter from The Code Consultancy Dated, October 21.2003.)
GENERAL BUILDING DESCRIPTION
First American Corporation (Phase 2) is two new four story, fully sprinklered, Type H,
Fire -Resistive, Group B, occupancies, Class A office buildings.
Building 4 is approximately 31,000s.f. per floor (127,266sf total). Building 5 is
approximately 24,500s.f. per floor (98,245sf total).
JUSTIFICATION
The intent of the Modification of Building Standards is to encourage the use of concepts in
construction and materials, which currently are not covered by the code, however, do meet
the performance intended by the California Building Code currently in effect.
Amending CBC Section 605.4 (Stairway Construction), to include fire rated carpet over steel
and concrete stair system.
(See attached carpet specifications.)
Amending CBC Section 1004.3.4.5 (Elevators) stating during and emergency will the
elevator lobby doors, stair doors and the 1-1/2 hour roll —down fire / smoke door close by the
activation of smoke detectors located both inside and outside of the stair and elevator lobbies.
(See attached Fire Door specifications.)
REQUEST
We respectfully request a design approval from both the Santa Ana. Building.
Respectfully submitted by:
ZK Coffee Architect & Associates
A. Wilson
Senior Associate
CC: Bob Coffee, RCA+A
Rick Lutzky, LAD
Ken Adams, City of Santa Ana
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