DENVER AMENDMENT PROPOSAL 2015 INTERNATIONAL CODES

Transcription

1 DENVER AMENDMENT PROPOSAL 2015 INTERNATIONAL CODES NOTE: Each proposed Denver amendment to the International Codes must be justified. In order to be considered, the amendment proposal must address climate, clarity and/or cost. 1) Submitter Information Name: David Mashburn, RA Date: 4/30/15 Organization (if Prepared on behalf of DIA and DFD applicable): DIA Facilities Services Phone: address: and 2) *Signature: GM * I hereby grant and assign to City and County of Denver all rights in copyright I may have in any authorship contributions I make to City and County of Denver in connection with this proposal. I understand that I will have no rights in any City and County of Denver publications that use such contributions in the form submitted by me or another similar form and certify that such contributions are not protected by the copyright of any other person or entity. Note: electronic signatures are acceptable. 3) Indicate which International Code (I-Code) you propose to amend (please use acronym): IBCA If your code proposal requires an amendment to another I-Code, please indicate which other I-Code and section(s) is impacted, and provide the necessary language within the proposal form. See section below for list of names and acronyms for the International Codes. 4) Be sure to format your proposal and include all information as indicated on pages 2-3 of this form. 5) Send your proposal to Community Planning and Development (CPD), attention: Jill Jennings Golich, via at jill.jenningsgolich@denvergov.org. An submittal should include an electronic version saved with a file name as follows: 2015_public_amendment_proposal_Codname_SectionReference, where Codename_SectionReference is replaced using the code and section being proposed (for instance 2015_public_amendmnet_proposal_IBC_Section312 ). The only formatting necessary is BOLDING, STRIKEOUT AND UNDERLINING. Please do not provide additional formatting such as this will be done by CPD. Please use a separate form for each proposal submitted unless as allowed in 3) above. Note: All amendment proposals received will receive an acknowledgment, and will be posted on the Building Code website to allow the public review. Please check here if a separate graphic file is provided. Graphic materials (graphs, maps, drawings, charts, photographs, etc.) must be submitted as separate electronic files in either PDF, JPEG or TIF format (300 DPI minimum resolution; 600 DPI or more preferred) even though they may also be embedded in your submittal. Acronym DBC-AP IBC IECC IEBC IFC IFGC IMC Code Name Denver Building Code Administrative Provisions International Building Code International Energy Conservation Code International Existing Building Code International Fire Code International Fuel Gas Code International Mechanical Code Acronym IPC IRC NEC Code Name International Plumbing Code International Residential Code National Electrical Code

2 AMENDMENT PROPOSAL Please provide all of the following items in your amendment proposal. Your proposal may be entered on the following form, or you may attach a separate file. However, please read the instructions for each part of the amendment proposal. Code Sections/Tables/Figures Proposed for Revision: Note: If the proposal is for a new section, indicate (new). New Appendix S Proposal: Show the proposal using strikeout or underline format. At the beginning of each section, include one of the following instruction lines: Revise as follows Add new text as follows Delete and substitute as follows Delete without substitution Add text as follows: (starts on following page)

3 APPENDIX S CONSTRUCTION OF AIRPORT BUILDINGS AND STRUCTURES All Chapters and Sections of National Fire Protection Association 415 Standard on Airport Terminal Buildings, Fueling Ramp Drainage, and Loading Walkways, shall be used in their entirety except as amended below: Section 1.4 is added: Chapter 1 Administration 1.4 Federal Agencies. The facilities, buildings, structures or portions thereof owned, occupied and managed by an agency of the federal government are not subject to the provisions of this Code. Section 1.5 is added: 1.5 Aircraft-Related Occupancies. Airport traffic control towers, Aircraft hangers, Residential aircraft hangers, Aircraft paint hangers, and Heliports and helistops shall comply with the requirements of 2015 International Building Code (IBC) Section 412 and 2015 International Fire Code(IFC) Chapter 20. Section is added: Chapter 3 Definitions Freight Terminal Building (Air Cargo Buildings) A structure used for the processing and/or storage of incoming or outgoing freight and other necessary functions in connection with air freight operations. Aircraft shall not be housed, stored, loaded or unloaded, undergo service, repairs, or alterations within a freight terminal building. Freight terminal building shall comply with the Group S-1 occupancy requirements of 2015 International Building Code (IBC) Section is added: Aircraft Loading Walkway on Grade Level A fully enclosed on grade walkway through which passengers move between a point in an airport terminal building and an aircraft. Chapter 4 Airport Terminal Buildings Section 4.1 General. Section is replaced: Airport terminal buildings shall be shall be of Type I or Type II construction as defined in IBC Chapter 6. Section is added: Occupancy. The occupancy of the airport terminal building or portions thereof shall be classified in accordance with the provisions of IBC Chapters 3 and 4 and shall comply with the mixed use and occupancy provisions of IBC Section 508. High-hazard Group H occupancy shall be not allowed in passenger terminal buildings. Section is added: Permits required. All work in airport terminal buildings, aircraft loading walkways and subsurface tunnels shall be subject to construction permit requirements as directed by the Building and Fire Code Official. This applies to both permanent and temporary construction, equipment installation, sleeping pods, kiosks and floor-mounted vending and advertising displays.

4 Section 4.2 Heating, Ventilating and Air-Conditioning Section is replaced: Heating, ventilating and air conditioning systems shall be installed in accordance with the applicable portions of 2015 International Mechanical Code (IMC), and 2015 International Fuel Gas Code (IFGC). Section is replaced: Exhaust hood ventilation systems for restaurant and flight kitchens shall conform to the applicable portions of 2015 International Fire Code (IFC) Chapter 6 and IMC Chapter 5. Section is added: Section 4.3 Exits Commercial Kitchen Exhaust hoods ventilation systems for restaurant and flight kitchens shall conform to the applicable portions of IFC Chapter 6 and IMC Chapter 5. Section is amended as follows: Delete the reference to NFPA 101, Life Safety Code and substitute the IBC Section is amended as follows: Delete the reference to NFPA 101, Life Safety Code and substitute the IBC Section 4.5 Fire Protection. Section is added: Section is added: Section is added: Section is added: Utility tunnel and utility spaces or rooms over 1,950 ft 2 (181 m 2 ) shall be classified as Ordinary Hazard Group gpm/ft 2 (0.61 liters/min)dry Systems. Dry systems shall be provided where required Baggage handling equipment tunnels over 1,950 ft 2 (181 m 2 ) shall be classified as Ordinary Hazard Group gpm/ft 2 (0.72 liters/min)dry Systems. Dry systems shall be provided where required Sprinkler protection for new or modified electrical rooms shall comply with IFCA New and modified communication and data rooms shall be provided with automatic sprinkler protection unless the provisions of IFC as amended apply. Section is replaced as follows: Fire Alarm systems. Fire alarm and smoke detection shall be provided as follows: I. Airport Terminal Buildings: 1. Smoke detection shall be spaced not to exceed 2,500 ft 2. (232 m 2 ) per detector with roof/ceilings over 25 ft (7.6 m) above an occupied floor. 2. Manual pull stations mustshall be provided at the required exits and shall be annunciated separately individually or by zone as approved. There shall be 200 linear ft (61 m) maximum between pull stations within public airport terminal and concourse areas. Location of manual pull stations throughout all other areas shall comply with NFPA 72.

5 3. Smoke detection shall be provided as follows: In each electrical, transformer, telephone equipment or similar room, elevator machine rooms, and in all elevator lobbies. In the outlet of fans used for pressurization of stairways, hoistways and refuge areas. Activation of these smoke detectors shall cause a supervisory signal, not an alarm signal at the building annunciator panel. At the top of pressurized stairwells and in elevator hoistways where required by this code. These devices shall initiate an alarm condition and illuminate the respective indicator at the graphic annunciator. This alarm condition shall not initiate occupant notification or the smoke control system. Smoke detectors shall be installed in supply air systems with a design capacity greater than 2,000 cfm (0.9 m 3 /s), in the supply air duct or plenum downstream of any fan. Activation of shall cause supervisory signal. In the main return air and exhaust air plenum of each air-handling system having a capacity greater than 2,000 cfm (0.9 m 3 /s) in accordance with International Mechanical Code (IMC) Section Where multiple air-handling systems share common supply or return air ducts or plenums with a combined capacity greater than 2,000 cfm (0.9 m 3 /s), smoke detectors shall be provided in accordance with IMC Section Detectors shall be listed for the air velocity in which they are installed. Activation of duct detectors shall cause a supervisory signal. Exception: Smoke detectors are not required for automatic shut-off of evaporative coolers or units that supply un-tempered 100% outside air. II. Tenant Spaces and similar rooms adjoining Airport Terminal Building(s): 1. Smoke detection shall be provided on the tenant side at each opening into the airport terminal building and at each exit from the tenant space. For openings larger than 30 lineal ft (9.1 m), an additional detector shall be provided for each 30 lineal ft (9.1 m) or fraction thereof. 2. Electrical equipment rooms that are equipped with fire sprinklers the room shall be equipped with a smoke detector(s), in rooms without fire sprinkler protection the room shall be equipped with smoke and heat detector(s). 3. Manual pull stations shall be required at all kitchen exits. Section is replaced: Section is replaced: Section is replaced: Section is added: Fire alarm system central station monitoring shall be provided by an approved radio communicator transmitting directly to DFD dispatch Fire alarm system signal annunciation shall be by a computer-based graphic display. All existing and new Airport Terminal Building fire alarm devices shall be integrated into the system. Annunciation of all building fire alarm, trouble and supervisory signals shall be displayed at the computer graphic displays and all fire alarm control units. Local annunciators shall also be provided for pre-action and clean agent extinguishing systems in accordance IFCA Section New Airport Terminal Building(s) shall be provided with an emergency voice/alarm communication system fully integrated into the complex-wide Emergency Communication System (ECS), incorporating; audible, visual and textual notification appliances including; flight, gate, baggage and multi-use information displays (FID s, GID s and BID s, MUFID s), other large format displays and video displays exceeding 60 (25.4mm) measured diagonally. DIA CATV and tenant audio systems shall be shunted upon activation of the emergency communication system The emergency voice alarm evacuation message alert tone shall be a slow whoop or as

6 Section is added: Section is added: approved by the fire code official. The evacuation message shall be manually initiated from the FCC The public areas of Airport Terminal Buildings shall be provided with pre-signal fire alarm notification functionality in accordance with NFPA A firefighter radio communication system shall be provided in accordance with IFCA Section 510 or shall be integrated into the existing DIA Public Safety Communications Network. Two-way wired communication shall also be provided by fixed handsets. Handsets for the Terminal building shall be located at; the FCC s on Terminal level 6, Terminal fire pump rooms, and the Life Safety Maintenance room on level 3. Any handset shall permit communication with all other handsets in the building simultaneously. New Airport Terminal Buildings shall have 2-way wired communication between the FCC and fire pump room(s) as approved. Section 4.6 Smoke Control for Airport Terminal Buildings is added: 4.6 Smoke Control for Airport Terminal Buildings Requirements. A smoke control system shall be provided to serve airport terminal buildings in accordance with this Section. Smoke exhaust locations shall be configured in order to prevent accumulation of smoke in any area of the airport terminal building. The smoke control system shall be activated in accordance with Section Where a space or corridor exceeds 20 ft (6.10 m) in length and is connected to an atrium or airport terminal area that has separate smoke control zones, provide supply air to the space or corridor at the farthest location from the point of connection to the atrium or airport terminal area. Tenant spaces less than 5,000 ft 2 (465 m 2 ) and open to the Airport Terminal Building shall be incorporated into the Airport Terminal Building smoke control exhaust operating sequence. Smoke control systems shall comply with Sections through Exceptions: 1. Ramp service and nonpublic ramp level tenant areas of airport terminal building. 2. Unenclosed bag handling tenant areas of airport terminal building. 3. Permanently fixed aircraft loading walkways when separated by one-hour rated assemblies Design criteria. The smoke control equipment for the airport terminal building shall be independent of that serving tenant spaces of 5,000 ft 2 (465 m 2 ) or more. The airport terminal building smoke removal system shall provide at least four air changes per hour or 20,000 cfm (9.4 m 3 /s) from each smoke zone minimum Tenant Spaces and similar rooms adjoining the Passenger terminal: All contiguous tenant spaces adjoining the airport terminal building which exceed 5,000 ft 2 (465 m 2 ), shall be a separate smoke control zone per Section Airport Terminal Building Elevators and Stairs. Pressurized exit stairs, elevator hoistways and exit passageways are required unless otherwise approved by the Building Department and Fire Department. Refer to IFCA Section 909 for requirements and design criteria. Exceptions: 1. Elevators and enclosed stairways from the transitway station. 2. Pressurized stairs, elevators and exit passageways shall not be required in existing airport terminal buildings and additions to the existing airport terminal building where these system do not presently exist.

7 4.6.5 Airport Terminal Building Baggage Tunnel. The smoke control exhaust system shall be sized to provide a minimum of 4 air changes per hour System Initiation. Airport Terminal Building smoke control shall be initiated when any two consecutive automatic devices (e.g., suppression water flow or automatic detection), activate within the same smoke zone. Manual activation of smoke control may be initiated at any FCC fire alarm system workstation. Operation of a manual pull station shall function as a verification device to initiate the smoke control sequence for the smoke zone containing the initial automatic device in alarm. Only manual activation from the FCC workstations shall be permitted to initiate the smoke control sequence for the Terminal Great Hall, Baggage Tunnels and AGTS Tunnel Adjacent Zones. Where multiple smoke control zones for the airport terminal building are provided either by the zone area requirements of this Section or by system design, only the smoke exhaust system for the zone in alarm shall be activated. Smoke exhaust systems for adjacent airport terminal building zones shall not activate. 4.7 Delayed Egress for Airport Terminal Buildings is added: 4.7 Delayed Egress for Airport Terminal Buildings Requirements. Where Airport Terminal Buildings are provided with delayed egress systems, these systems shall be designed and installed in accordance with this Section and the airport s Design Standards and policies as approved by the Building and Fire code officials Delayed egress. Delayed egress shall be permitted to restrict access from an airport terminal building to the Restricted Areas of the airport Delayed egress sequence of operation. The fire alarm system shall interface with all delayed egress systems and unlock these doors based on an approved sequence of operation. All doors shall be capable of being unlocked manually at the FCC fire alarm system workstation Delayed egress lock power. All delayed egress locks shall release upon loss of power Delayed egress lock release. The delayed egress locks shall initiate the irreversible unlocking process after the releasing device has been activated for 3 seconds. Once the unlocking process is initiated, the delayed egress lock shall release in 15 seconds Delayed egress lock relocking. Relocking of the doors shall be permitted to be performed through a centralized system after the fire alarm system has been reset Delayed egress lock signage. All doors provided with delayed egress locks shall have approved signage providing door opening instructions Delayed egress lock emergency lighting. All new doors provided with delayed egress locks shall be provided with emergency lighting Delayed egress lock listing. Components for the delayed egress lock shall be Listed as a complete assembly. Section 4.8 Emergency Power is added: 4.8 Emergency Power Airport Terminal Buildings shall be provided with an emergency power source. Emergency power shall be provided by dual utility services or other approved means complying with NFPA 70, (NEC) Article 700 and the

8 International Fire Code as amended. Conditions of utility service availability and system power transfer shall be monitored by the fire alarm system The following equipment shall be provided with emergency power: 1. Mechanical equipment for smoke control. 2. Emergency egress and exit lighting. 3. Emergency elevator power. 4. Fire alarm and detection systems. 5. Fire pump/jockey pump. 6. Emergency communication systems. Section 6.1 Basic Design Section is added: Chapter 6 Aircraft Loading Walkways Aircraft Loading Walkways on Grade Level. Permanently fixed aircraft loading walkways on grade level shall be of Type I or II-A construction as defined in IBC Chapter 6. All exterior doors shall be have opening protection with a fire rating of not less than ¾ hour. Doors shall be self-closing and shall swing outward. Entrance doors between walkways and the airport terminal building shall swing into the airport terminal and be equipped with automatic closers and panic hardware. Section is added: Other Aircraft Loading Walkways. Both fixed and movable aircraft loading walkways shall be constructed in accordance with NFPA 415 Section 6.2 and in compliance with FAA Circular AC 150/ C. Structural loading shall comply with IBC Chapter 16. All walkways shall be provided with a permanently affixed placard certifying compliance with NFPA 415. Requirements of this amendment Section through shall not apply. Section 6.2 Requirements for All Aircraft Loading Walkways Section is amended as follows: Delete the reference to NFPA 101, Life Safety Code and substitute Class A as defined in Section of the International Building Code. Section is amended as follows: Delete the reference to NFPA 101, Life Safety Code and substitute Interior textile finish of walls and ceilings in walkways shall be limited as specified in Sections and of the International Building Code. Section is amended as follows: Delete the reference to NFPA 101, Life Safety Code and substitute Class I as defined in Section 804 of the International Building Code. Section is amended as follows: Delete the reference to NFPA 101, Life Safety Code and substitute the International Building Code as amended. Section is added as follows: Section Sprinkler System. Permanently fixed aircraft loading walkways greater than 20 ft (6.10 m) in length or at grade level shall be provided with an automatic sprinkler system in accordance with NFPA 415,

9 Chapter 7 is added: Chapter 7 Subsurface Tunnels Section 7.1 General. All subsurface tunnels shall comply with the provisions of this section; Section 7.2 Sprinkler System Design Occupancy Classifications. B a g g a g e T u n n e l s ( O r d i n a r y H a z a r d G r o u p 2 ) a n d Utility Tunnels (Ordinary Hazard Group I) shall be sprinklered throughout. Train Service Tunnels (Ordinary Hazard Group 2) shall be sprinklered at the transit stations as approved by the Building Department and Fire Department. Section 7.3 Smoke Removal System. A smoke removal system shall be provided per Section Section 7.4 Life Safety System. All life safety systems shall be provided with emergency power. Utility and baggage tunnels shall be provided with visible (strobes) and textual visible notification appliances for emergency alarm and ECS integration where applicable. Device locations shall be as approved by the fire code official. Section 7.5 Exits. A walkway with a minimum 74-inch width (1.9 m) [2 exit path widths of 22 inches (56 cm) each, plus 12 inches (30 cm) wall clearance, and an 18-inch (46 cm) platform edge clearance] shall be provided within all people-mover transit tunnels. Exit doors into adjacent protected tunnels shall be provided at a maximum spacing of 200 ft (61 m) and shall be monitored by the airport operations center. Exception: The walkway width and exit door spacing may be modified based upon an exit study submitted by the Design Professional and approved by the Building Department and Fire Department. Section 7.6 Separation. A minimum 2-hour fire-resistance-rated IBC Section 707 fire barrier shall be provided between tunnels. Section 7.7 Transit Station Separation. The transitway shall be separated from the transit station by minimum twohour fire-resistance-rated noncombustible walls with 1½-hour fire-resistance-rated doors. Windows within these walls shall be approved 1½-hour fire-resistance-rated windows. Exception: Fire-resistance-rated window openings of ¾-hour may be used when the window assembly is protected with approved directional sprinkler heads 6-0 o.c. (1.83 m) both sides of glass. Section 7.8 Transit Systems Construction Guide. Fixed Guideway Transit Systems, NFPA 130 shall be used as a construction guide unless specifically covered by this code. Section 7.9 Transitway Tunnel. The transitway tunnel shall be used exclusively for the movement of passengers between stations.

10 Supporting Information: The following items are required to be included. Purpose: The proponent shall clearly state the purpose of the proposed amendment to climate and/or clarify that are specific to the City and County of Denver (e.g., clarify the Code; revise outdated material; substitute new or revised material for physical, environmental and customary characteristics; add new requirements to the Code; delete current requirements, etc to reflect physical, environmental and customary characteristics that are specific to the City and County of Denver.) Reasons: The proponent shall justify changing the current Code provisions, stating why the proposal is necessary to reflect physical, environmental and customary characteristics that are specific to the City and County of Denver. Proposals that add or delete requirements shall be supported by a logical explanation which clearly shows why the current does not reflect physical, environmental and customary characteristics that are specific to the City and County of Denver and explains how such proposals will improve the Code. Substantiation: The proponent shall substantiate the proposed amendment based on technical information and substantiation. Substantiation provided which is reviewed and determined as not germane to the technical issues addressed in the proposed amendment shall be identified as such. The proponent shall be notified if the proposal is considered an incomplete proposal, and the proposal shall be held until the deficiencies are corrected. The burden of providing substantiating material lies with the proponent of the amendment proposal. A minimum of two copies of all substantiating information shall be submitted. Bibliography: The proponent shall submit a bibliography when substantiating material is associated with the amendment proposal. The proponent shall make the substantiating materials available for review. Purpose: Updates current code amendments and incorporates design requirements for DIA previously addressed in various Building and Fire Department agreements with the DIA design agency. Updates code requirements for new system and facility construction compliance based on system and facility upgrades since original construction. Reason: New facility construction and system installations at DIA are required to comply with current codes. However, numerous existing building components were modified under Memoranda of Agreement based on the uniqueness of the facilities. Providing these requirements in a dedicated section with coordinated reference to specific applicable code or other design documents facilitates designer compliance and consistency of code application and review for integration of existing systems with new installations.

11 Referenced Standards: List any new referenced standards that are proposed to be referenced in the code and provide a minimum of one electronic copy. Should the amendment proposal be recommended for inclusion in the amendment package, you must provide two hard copies. Impact: Discuss the impact of the proposed amendment and answer the three questions below on the impact of the amendment proposal. Effect of the proposed amendment on the cost of design: Increase Reduce No Effect Effect of the proposed amendment on the cost of construction: Increase Reduce No Effect Is the amendment proposal more or less restrictive than the I-Codes? More Less Same Departmental Impact: To be filled out by CPD/DFD Note: The department shall indicate one of the following regarding the impact of the amendment proposal: Effect of the proposed amendment on the time to review: Increase Reduce No Effect Effect of the proposed amendment on the cost of enforcement/inspection: Increase Reduce No Effect