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HomeMy WebLinkAboutNS-1163ORDINANCE NS - 1163 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF SANTA ANA AMENDING AND ADDING TO CHAPTER 8 OF THE SANTA ANA MUNICIPAL CODE FOR THE PURPOSE OF ADOPTING AN AMENDMENT TO THE 1970 EDITION OF THE UNIFORM BUILDING CODE CONCERNING LIFE-SAFETY PROVISIONS FOR HIGH RISE RESIDENTIAL AND OFFICE BUILDINGS THE CITY COUNCIL OF THE CITY OF SANTA ANA DOES ORDAIN AS FOLLOWS: Section 1: The Santa Ana Municipal Code is hereby amended by adding a section to be numbered Section 8-158, which said section reads as follows: Section 8-158. Special Life-Safety Provisions for High Rise Residential and Office Buildings. Chapter 17 of the Building Code is amended by adding a section to be numbered Section 1715 to read as follows: Section 1715. Special Provisions For Group F, Division 2 Office Buildings and Group H Occupancies. (a.) Scope. The requirements herein apply to build- ings housing Group F, Division 2 Occupancies used primarily as offices and to Group H. Occupancies. Such buildings having floors used for human occupancy located more than 75 feet above grade shall conform to the requirements of this Section in addition to other applicable requirements of this Code. (b.) Compartmentation. Compartmentation shall be provided in every building to provide areas of refuge for the building occupants. This may be provided by; 1. Horizontal exits dividing a story into two or more areas of approximately the same size not exceeding 30,000 square feet. 2. Subdividing the building into five story compartments by interrupting the stairshaft with smoke barriers every fifth floor or through the use of smokeproof enclosures for all stairways or any other method which will protect against the movement of smoke from one compartment to another. Openings in exterior walls, located vertically above one another, shall be protected by approved flame barriers extending 30 inches beyond the exterior wall in the plane of the floor or by vertical panels not less than 3 feet in height. -1- ORDINANCE NS - 1163 Horizontal exit walls used for compartmenting a building shall not have openings therein which would per- mit transfer of smoke from one compartment to the other except for required exits. For sprinkler alternate see Subsection (m). (c) Fire Alarm. A manual fire alarm box shall be located adjacent to exit doors into stairway shafts and in every elevator lobby. The box shall be connected to the Central Control Station and to the voice communica- tion system as required by Subsections (f) and (g). The system shall be designed in accordance with U.B.C. Standard No. 18-1. (d) Fire Detectors. An approved system which will provide for automatic detection of products of combustion other than heat shall be installed in every mechanical equipment room and in the return air portion of every air conditLoning and mechanical ventilation system that serves floors other than the floor on which the equipment is lo- cated. The detectors shall be set to operate within the limitations of U.B.C. Standard No. 43-6 and shall be located at each opening into the vertical shaft. (e) Voice Alarm System. Both the detection system and the fire alarm system shall activate a voice alarm system capable of being operated from the Central Control Station on both a general as well as a selective basis dependent upon the compartmentation involved. The alarm shall be designed to be heard by all occupants within the building or designated portions thereof as specified for the voice communication system. The elevator lobby detec- tor required by Chapter 51 shall be connected to the system. (f) Voice Communication System. There shall be two separate approved continuously electrically supervised voice communication systems; one for Fire Department communication system and the other a public voice communi- cation (address) system between the central control station and the following areas: 1. Elevators, elevator lobbies, corridors and stairways. 2. Every office area exceeding 1,000 square feet in area. 3. Each dwelling unit and hotel guest room. When approved, the fire department system may be combined with the public voice communication system and voice alarm system. (g) Central Control Station. A central control station for Fire Department operations shall be provided in a location approved by the Fire Department. It shall contain the voice communication systems panel; fire detec- tion and alarm system panels; status indicators and controls for elevators; air handling systems; controls for unlocking stairway doors; a public telephone; sprinkler valve and water flow detectors; and standby power controls. -2- ORDINANCE NS - 1163 (h) Smoke Control. Natural or mechanical ventilation for the removal of the products of combustion shall be provided in every story and shall consist of one or more of the following: 1. Panels or windows in the exterior wall which can be opened from an approved location other than the fire floor. Such venting facilities shall be provided at the rate of at least 20 square feet per 50 lineal feet of exterior wall in each story, and distributed around the perimeter at not more than 50-foot intervals. Such panels shall be clearly identified as required by the Fire Department. 2. Approved tempered glass may be used in lieu of openable panels. 3. When fire sprinklers are installed in compliance with Subsection (m), the mechanical air handling equipment may be designed to assist smoke removal. Under fire conditions, the return and exhaust air shall be taken directly to the outside without recirculation to other sections of the building. 4. A shaft through which smoke and heat can be mechanically vented to the outdoors. The size of the shaft shall be uni- form throughout and of such dimensions as to provide not less than 60 air changes per hour in the largest compartment served anywhere in the building. Openings into the shaft shall be protected with an automatic single piece shutter located as high in the room as possible and designed to vent the entire compartment. 5. Any other design which will produce equivalent results. (i) Elevators. There shall be provided at least one elevator in each bank available for Fire Department access to any floor. The elevator shall open into a lobby, which may serve other elevators, and shall be separated from the remainder of the building by construction as required for corridors. The elevator may be located within a smokeproof enclosure. See Chapter 51 for additional requirements. (j) Standby Power and Light. A permanently installed standby power generation system conforming to U.B.C. Stan- dard No. 18-1 shall be provided. The system shall be equipped with suitable means for automatically starting the generator set upon failure of the normal electrical service and for automatic transfer and operation of all the required electrical functions at full power within 60 seconds of such normal service failure. System supervision with manual start and transfer features, shall be provided at the Central Control Station. An on-premise fuel supply sufficient for not less than two hours full demand operation of the system shall be pro- vided. All power, lighting, signal, and communication facilities provided under the requirements of this Section shall be transferable to the standby power system. -3- ORDINANCE NS - 1163 The power requirement shall be deteuamined so as to provide service to, but not limited to the following: 1. Fire alarm system. 2. Exit and other emergency lighting. 3. Fire protection equipment. 4. Mechanical ventilation required by this Section. 5. Fire Department elevator. 6. Voice communication system. (k) Seismic Considerations. In Seismic Zones 2 and 3 the anchorage of the following mechanical and electrical equipment required by the Section shall be designed in accordance with Section 2314 for a lateral force based on a "Cp" value of 0.5 unless data substantiating a lesser value is furnished: 1. Elevator drive and suspension systems. 2. Standby power and lighting facilities. 3. Fire pumps and other fire protection equipment. (1) Exits. Ail Stairway doors which are to be locked from the stairway side shall have the capability of being unlocked upon a signal from the Central Control Station. Emergency telephones available to the public shall be provided at not less than'every fifth floor in each required stairway. (m) Fire Sprinkler Alternative. Sprinkler protec- tion conforming to the following may be provided as an alternate to compartmentation: 1. The sprinkler system is hydraulically designed using the parameters set forth in U.B.C. Standard No. 38-1 and the following: (i) Shutoff valves and waterflow devices shall be provided on each floor. In addition to actuating a local alarm on the floor upon which the water flow is detected, such valves shall be supervised by a continuously manned con- trol station or by a central station. pipe with loop (ii) The sprinkler system shall be looped between stand- risers at the bottom, top and mid-height of all buildings a maximum of 20 stories served by any loop. At each level there shall be check valves. (iii) Piping may be copper or steel with no minimum size of pipe required. Solder used in connections shall contain not less than 95 percent tin and 5 percent antimony. (iv) Pitching of lines is not required. (v) A minimum of two fire pumps independently driven shall be provided and sized for the sprinkler demand and for a minimum 500 gallons per minute Fire Department standpipe operations. (vi) An on -site supply of water equal to a 20-minute demand or 15,000 gallons on a combined sprinkler and stand- pipe, whichever is the smaller, shall be provided. This supply shall be available automatically if the principal supply fails. -4- ORDINANCE NS - 1163 (vii) Operation of the sprinkler system shall activate the voice communication system. 2. When the automatic sprinkler system described above is installed, the following reductions from the requirements of this Code are permitted: (i) The fire-resistive time periods set forth in Table No. 17-A may be reduced by one hour for interior bearing walls, exterior bearing and non-bearing walls, roofs and the beams supporting roofs, provided they do not frame into columns. All office building partitions required to be of one-hour fire-resistive construction by Table No. 17-A and Section 3304 (g) may be of noncombustible construction with- out a fire-resistive time period. Openings in corridor walls shall be protected by tight-fitting, self-closing doors that need not have a fire-resistive time period. In Group H Occupancies, corridor and dwelling unit or guest room separa- tion may be reduced to one-half hour. (ii) omitted. The 1 1/2 inch hose lines and nozzles may be (iii) Travel distance to a horizontal exit or to an enclosed stairway may be 300 feet. (iv) Smokeproof enclosures may be eliminated if each required stairway is pressurized as provided in Section 3309 (h) to .15 inch of water column. (v) Spandrel protection required by Subsection (b) may be omitted. SECTION 2: If any section, subsection, sentence, clause, phrase or portion of this ordinance is for any reason held to be invalid or unconstitutional by the decision of any court of competent jurisdiction, such decision shall not affect the validity of the remaining portions of this ordinance. The City Council of the City of Santa Ana hereby declares that it would have adopted this ordinance and each section, subsection, sen- tence, clause, phrase or portion thereof irrespective of the fact that any one or more sections, subsections, clauses, phrases or portions be declared invalid or unconstitutional. SECTION 3: Neither the adoption of this ordinance nor the repeal hereby of any ordinance shall in any manner affect the prosecution for violation of ordinances, which violations were committed prior to the effective date hereof, nor be construed as affecting any of the provisions of such ordinances relating to the collection of any such license or penalty or the penal provisions applicable to any viola- tion thereof, nor to affect the validity of any bond or case deposit in lieu thereof, required to be posted, filed or deposited pursuant to any ordinance, and all rights and obli- gations thereunder appertaining shall continue in full force and effect. SECTION 4: The Clerk of the Council shall certify to the passage of this ordinance and cause the same to be published in some daily newspaper printed and published in the City of Santa Ana. -5- ORDINANCE NS 1163 PASSED AND ADOPTED by the City Council of the City of Santa Ana at its regular meeting held on the ~th day of , 1973. ATTEST: CLERK OF THE COUNCIL STATE OF CALIFORNIA ) COUNTY OF ORANGE ) ss CITY OF SANTA ANA ) I, FLORENCE I. MALONE, do hereby certify that I a~ the Clerk of the Council of the City of Santa Ana; that the foregoing Ordinance was introduced to said Council at its regular meeting held on the 21st day of May , 1973 and was again considered by said Council at its meeting held on the 4th day of June , 1973, and was at said meeting passed and adopted by the following vote, to wit: AYES, COUNCILMEN: NOES, COUNCILMEN: Griset, Yamamoto, Markel, Garthe, Patterson, Ward None ABSENT, COUNCILMEN: Evans CLERK OF THE COUNCIL