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Home My WebLink AboutSmoke Control Stair 1 and 6 Revision Marc E.Espinosa David B.Robinson,P.E. Richard D.Matthies,P.E. ENGINEERING,INC. Stephen C.Rondinelli,AIA c,�,�r,.sr��rr,�,��,,�r E,��r„�-�•,;,�y Robert M."Mike"Cordero,P.E. August 9, 2009 Martin A. Haeberle, C.B.O. Chief Building Official Town of Vail 75 South Frontage Road Vail, Colorado 81657 970.479.2142 (o) 970.376.3672 (c) MHaeberle@vailgov.com RE: Solaris Project- 143 East Meadow Drive,Vail, Colorado Modification to Item #6 Revision in the Smoke Control Design Criteria for Stairway#1 and Elevator#1 August 13,2007(Revised October 4,2007) Administrative Modification Request This is a written request to modify the approved Administrative Modification referenced above as directed by Dan Feeney (Solaris). Mr. Feeney has discussed with you the elimination of the 90 minute rated door on the opening of Elevator 1 on Levels l, 3 and 4. This door will be replaced with a Smoke Guard—Mode1400 at all three of these levels. Attached are the details for the Smoke Guard roll-down smoke control device over the opening of Elevator#1 at Levels 1, 3 and 4.The architect of record will provide architectural details and modifications to the existing permit set of plans under separate cover. Attached with this document is documentation from Otis Elevator verifying that the elevator doors and frames with a grouted frame have a 90 minute LTL "B"rating. The Smoke Guard will prevent smoke migration from the corridor into the elevator hoist-way. Attached is the Smoke Guard Mode1400 cut sheets. Since the intent of Item#6 in the Administrative Modification, as referenced below, is related to the smoke control system design criteria for Stairway#1, the replacement of the door with the Smoke Guard device has also been reviewed by Brian Thompson, PE, Fire Protection Engineer of Record for the Smoke Control System. His concurrence with this modification is indicated on the signature page of this letter. Solaris Project Page 2 Vail, Colorado August 9, 2009 Modification to Item#6—October 16, 2007 Administrative Modification Request For reference purposes the excerpt of Item#6 from the October 23, 2006 A�lministrative Modification is provided below in italics: ITEM#6, BASIS FOR A REVISION IN THE SMOKE CONTROL DESIGN CRITERIA FOR STAIRWAY 1 AND ELEVATOR 1 Explanation of the Smoke Control Desi�n Issue with Stairwav 1 and Elevator I The sm.oke control pressurization requirements for stairways and elevator shafts serving the residential floor levels were analyzed in detail with several scenarios using the CONTAMW com.puter rraodel involving different temperature and wind extremes(winter/70"F/summer, an�l with/without a 30�nph wind), and with all stairway doors closed or the top two doors open and the level of discharge doors open. There were issues meeting the narrow range of pressures required in the 2003 IBC, but through the process of the engineering analysis it was cletermined that all the stairways and elevator shafts (excluding Stairway 1 ancl Elevator 1) could be pressurizecl to mitigate smoke migration hazards. Each section of the building allows air movement in and out of the building based on stack effects caused by temperature differences and wind effects. Most of the time these effects can be acconzmodated by the smoke control design, but the southwest corner of the Solaris building(where Stairway 1 and Elevator 1 are located)does not allow for the sirnultaneous pressurization of both Stairway 1 a�cl Elevator l. A maxim.um pressure differential of approxirrcately 0.35 inches of water column will allow a stair(or elevator)door to be opene�l within the maximum forces allowed by the 2003 IBC. Above 0.35 inches of water column pressure clifferential, the door opening forces are too great. The issue of simultaneously pressurizing Stairway 1 and Elevator 1 was explained to the TOV during the July 24/25, 2007 meetings. The design team has a preference for pressurizing Stairway 1 and leaving Elevator 1 without smoke control pressurization. A solution for this design approach is presented in this section(#6)of this 2ND Administrative Modification Request(AMR). Stairway 1 will have a pressurizecl smoke control system. The pressurization of Stairway 1 was done to prescriptively alleviate the need to provicle vestibules on Stairway L The firefighters from the VFES can also use Stairway 1 to safely access upper residential floor levels. No equivalency is necessary for pressurizing Stairway 1. Stairway 1 and Elevator 1 serve the following basement ancl four upper floor levels and occupancies: • Gara�e Level: Group S-2 enclosed parking garage entirely below grade. • Level 1:A 2-hour fire-resistive ratecl(FRR) exit passageway serving the upper Group M (Level 2)anrl Group R-2 (Levels 3 &4) occupancies. • Level 2: Group M retail space. • Level 3: Two Group R-2 clwelling units connected by a 1-hour FRR corridor • Level 4: One Group R-2 dwelling unit. C:\DOCUMENT3 AND SETTINGS\3CRU.00AL SETTINGS\TEMPORARY INTERNET FILES\CONTENT.OUTLOOK\6KP6D4MJ�MODIFICATION TO SOLARIS VAIL ADMIN MOD ITEM#6 8 13 2007.DOC 5420 WARD ROAD,$UITE 200,ARVADA,COLORADO 80002-1 83 8•TE�EPHONE: 303-422-7400•FAx: 303-422-7900 Solaris Project Page 3 Vail, Colorado August 9, 2009 Modification to Item#6—October 16, 2007 Administrative Modification Request Prescrintive 2003 IBC ReAUirements for which an Equivalencv is Proposed There are two 2003 IBC prescriptive requirements that this section of this 2ND AMR seeks to establish an Equivalency for: 1. The IBC generally requires FRR corridors and elevator lobbies for floor levels serving Group R occupancies. 2. Elevators are not permitted to open into exit passageways. Currently, Elevator 1 opens irato the FRR exit passageway serving Stairway 1. The first Equivalency involves the following. Section 707.14.1 of the 2003 IBC requires a fire-resistive rated(FRR)elevator lobby for elevators opening into a FRR corridor as required by Section 1016.1. The separation walls of the elevator are required to have a FRR as required for a fire partition (1-hour)and the reqttired opening protection (45-minute doors). Section/Table 1016.1 requires at least a 0.5-hour FRR corridor on the floor levels with Group R-2 areas. Since there are no listed 0.5-hour assemblies, the building will be designed with 1-hour FRR corriclor asserrtbly walls on the Group R-2 floor levels. Based on this requirement, the Group R-2 dwelling units on the SW builcling section Levels 3 and 4 served by Stairway 1 and Elevator 1 would normally require a 1-hour FRR corridor serving them. However, Exception 2, Section 1016.1 allows a corridor within a (single) Group R dwelling unit to be non-rated. Given this exception, the small corridor separatinQ Unit 401 on Level 4 from Stairwav 1 and Elevator 1 is allowed to be non-rated(as shown on the current 7/1/2007 Grading &Excavation perinit submittal drawings). Section/Table 1016.1 will require a FRR corridor serving Units 30l and 302 on Level 3 and Section 707.14.1 will require a 1-hour FRR elevator lobbv on this floor level. Originally, Item#3 in the March 20, 2007 approved AMR(Omission of FRR Elevator Lobbies Opening into Rated Corridors in Group R-2 Areas) establishecl an equivalency to omit the elevator lobby by pressurizing the Elevator 1 core accorcling to Exception 6, Section 70714.1 of the 2006 IBC. Although the design team still intenc�s to use this approved IST AMR Equivalency on Elevators 3 and 4 serving the Group R-2 floor levels, we will have to satisfy the prescriptive FRR elevator lobby requirement for the Unit 301/302 corridor since we cannot pressurize the Elevator 1 shaft. Since the Group S-2 (Garage Level)and Group M(Levels 1 &2)do not required FRR corriclors froin Section/Table 1016.1 for buildings with fire sprinkler systems, these floor levels do not require FRR elevator lobbies. It should be noted that ASME A17.1 requires smoke detectors located near elevator openings to provide a means for elevator recall control. An elevator lobby provides a more suitable enclosure to facilitate smoke detector activation for elevator recall. The second Equivalency issue involves Elevator 1 opening into the FRR exit passageway serving Stairway 1. Section 1020.4 states, elevators shall not open into exit passageways. Also, Section 3002.7 requires separate protective enclosures for stairways and elevators. Section 3002.7 does rtot allow a corrcmon enclosure for both the elevator and stairway shafts. The current 7/1/2007 Gra�ling and Excavation permit submittal drawings incorrectly show Elevator 1 opening into the Stairway 1 exit passageway on Level 1. C:�DOCUMENTS AND SETTINGS\SCRU.00AL SETTINGS\TEMPORARY INTERNET FILES\CONTENT.OUTLOOK\6KP6D4M.I�MODIFICATION TO SOLARIS VAIL ADMIN MOD ITEM#6 8 13 2007.DOC 5420 WARD ROAD,$UITE 200,ARVADA,CO�ORADO 80002-7 838�TELEPHONE: 303-422-7400•FAX: 303-422-7900 Solaris Project Page 4 Vail, Colorado August 9, 2009 Modification to Item#6—October 16, 2007 Administrative Modification Request Obiective of Establishin�an Equivalencv in this Renort Originally, Item#3 in the March 20, 2007 approved 1 ST AMR(Omission of FRR Elevator Lobbies Opening into Rated Corridors in Group R-2 Areas). The first objective of this 2ND AMR section is to eliminate the elevator pressurization Equivalency established in the 1 ST AMR for ONLY Elevator 1. By omitting pressurization of the Elevator 1 shaft, FRR Elevator 1 lobbies will be requirecl on at least the Level 3 FRR corridor. The objective of FRR elevator lobbies is to prevent smoke from migrating from elevator shafts on to upper Group R-2 floor levels. The seconcl objective of this 2ND AMR section is to find an Equivalent means of allowing Elevator 1 to open into the exit passageway on Level 1. If Elevator 1 can be isolated(protected)from.the other floor levels beyond what is prescriptively required, then opening the elevator into exit passageway m.ay be possible. Method of Obtainin�an Equivalencv We established above that the non-pressurized Elevator 1 shaft would only prescriptively require a FRR elevator lobby on the Unit 301/302, Level 3 FRR corridor. The Unit 401, Level 4, non-rated corridor is not required to have a FRR elevator lobby. The Group S-2/B/M floor levels (G, 1 &2)below the Group R-2 floor levels(3 &4)are not required to have FRR corriclors or elevator lobbies, Aclditionally, the Elevator 1 opening into the Level 1 exit passageway for Stairway 1 is prohibited by the IBC. The IBC does not specifically prohibit an elevator lobbv opening into an exit passageway, although it would be reasonable to require 2-hour FRR elevator lobby walls and 90-minute protected openings for the connection of an elevator lobby to the 2-hour FRR Stairway 1 exit passageway. An elevator lobby should not be considerecl an unoccupied space since it would be used for the circulation of occupants. There are two possible o tions to establish an equivalency. The Option A would be to: • Provide the prescriptively required 1-hour FRR elevator lobby (with 3/a-hour cloors)on the Unit 301/302, Level 3 FRR corridor. This option would require a re-clesign of Unit 301. • Provide an Equivalent 2-hour FRR elevator lobby and with a 90-minute protected door opening from Elevator 1 to the 2-hour FRR Level 1 exit passageway serving Stairway 1. This option would decrease the amount of leasable space for Retail 102. Option A would not�nitigate smoke sprea�l into the Elevator 1 shaft fro�t Levels G, 2 and 4. Thus, the Group R-2 Unit 401 on Level 4 could be susceptible to sm.oke rrcigration, which would affect the safety of occupants who may be sleeping. Option A is also not preferable to the design team due to the need for the re-design of Unit 301. The Option B woulcl be to: • Provide(a normallv non-required) 1-hour FRR elevator lobby(with-�/a-hour, self-closing doors) on the Garage Level. This optior� would require the relocation of the 90-t�ainute, Stairway 1 door to the south side of Stairway 1. C:\DOCUMENTS AND SETTINGS\SCR�L,OCAL SETTINGS\TEMPORARY INTERNET FILES\CONTENT.OUTLOOK\6KP6D4MJ1MODIFICATION TO SOLARIS VAIL ADMIN MOD ITEM#6 8 13 2007.DOC 5420 WARD ROAD,$UITE 200,ARVADA,COLORADO 80002-1 838�TELEPHONE 303-422-7400•Fnx: 303-422-7900 Solaris Project Page 5 Vail, Colorado August 9, 2009 Modification to Item#6—October 16, 2007 Administrative Modification Request • Provide an Equivalent 90-minute, automatic-closing protected door opening from Elevator I to the 2-hour F'RR Level I exit passageway serving Stairway 1 (without an elevator lobby). This door coulcl be helcl open by a clevice connected to the fire alarm systerrc and release upon activation of an alarm. • Provide (a normallv non-re uired) 1-hour FRR elevator lobby(with�/a-hour, self-closing doors)on the Retail 201 unit on Level 2. This option would require the relocation of the 90-minute, Stairway 1 door to the south side of Stairway 1. This option woulc�decrease the amount of leasable space for Retail 201. • Provide an Eqc�ivalent 90-minute, automatic-closing protectecl cloor opening from. Elevator 1 to the 1-hour FRR Level 3 corriclor serving Units 301 &302 (without an elevator lobby). This door could be held open by a device connected to the fire alarm. system ancl release upon activation of an alarm. • Provide(a normallv non-re uA ired)_90-minccte, automatic-closing protected door opening from Elevator 1 to the non-rated Level 4 corridor serving Unit 401 (without an elevator lobby). This door could be held open by a device connected to the fire alarm system and release upon activation of an alarm Refer to the_five 8-1/2"x Il"drawin�s for the Stairway-1/Elevator-1 area on Levels G, 1, 2, 3, 4 and 5 for the proposed design of the rated lobbies and doors described above for Ontion B following this page. Aclministrative Modification Request Item#6(with Option B) requests the approval of an Equivalency fronz the Town of Vail to allow the use of a 90-minute protected door operiing from Elevator 1 on Level 1 (into the 2-hour FRR exit passa ewav)and Level 3 (into the 1-hour FRR corridor). Support for establishirtg this Equivalency is the additional, non-re uq ired, smoke rrtigration protection gained by the 1- hour FRR elevator lobbies on the Garage Level and Level 2, with the protection from the 90-mirtute protectecl door opening from Elevator 1 on Level 4. Conclusion The design team believes Administrative Modification Request Item#6(with Option B)above allows for an Adclendum to modify the requirement in the IST AMR(Item#3) to allow the Elevator 1 shaft to be non- pressurized. Option B presented in this section also mitigates the srrtoke migration hazard of the Elevator 1 shaft on all floor levels, as effectively as pressurizing the shaft would. Administrative Modification Request Item#6(with Option B)also provides a viable Equivalency to allow for a 90-minute protectecl cloor opening from the Elevator 1 shaft to the 2-hour FRR Level 1 exit passageway. The additional, non- reqasired protective features on Levels G, 2 and 4 support this equivalency. The design team requests the approval of Item#6(with Option B) of this 2ND AMR presented above in this section. Stairway 1 will have a pressurized smoke control system according to the 2003 IBC and fcre engineering requirements. Please contact me at 303-422-7400,Ext. 283 should you have any questions regarding this report. C:\DOCUMENTS AND 3ETTINGS\SCR�L,OCAL SETTINGS\TEMPORARY INTERNET FILES\CONTENT.OUTLOOK\6KP6D4MJ�MODIFICATION TO SOLAR[S VAIL ADMIN MOD ITEM#6 8 13 2007.DOC 5420 WARD ROAD,SUITE 200,ARVADA,COLORADO 80002-1 83 8�TELEPHONE: 303-422-7400•FAx: 303-422-7900 Solaris Project Page 6 Vail, Colorado August 9, 2009 Modification to Item#6—October 16, 2007 Administrative Modification Request 0� C O� (� E-.,�'�� q9o� �c� S�EP�fi�!'J � Prepared by: rqU -:=-= BCER ENGINEERING,INC. ' !�-��: �" � . �� _ �C � �j�jS N\`� August 9, 2009 � G Stephen Rondinelli,AIA. Date Director of Fire Protection and Life Safety Reviewed by: Brian Thompson, PE, Smoke Control System Fire Protection Engineer of Record Town of Vail Acceptance by: Martin Haeberle, Chief Building Official Date Vail, Colorado Mike McGee, Deputy Chief Date Vail, Colorado CC: Chief Mike McGee, Deputy Chief/Fire Marshal Town of Vail, Fire and Emergency Services 42 West Meadow Drive Vail, Colorado 81657 mmcgee@vail og v.com C:�DOCUMENTS AND SETTINGS\SCR�L.00AL SETTINGS\TEMPORARY INTERNET FILESICONTENT.OUTLOOK\6KP6D4MJ�MODIFICATION TO SOLARIS VAIL ADMIN MOD ITEM#6 8 13 2007.DOC 5420 WARD ROAD,$UITE 200,ARVADA,COLORADO 80002-1 83 8�TELEPHONE: 303-422-7400•Fnx: 303-422-7900 ' • - E Otis Elevator Company North American Operatlons 0�� zo17 Curtls Street G benver,CO 80265 A United Technolo Ies Com an (303)298»9300 � 9 P Y June 29,2009 E-MAIL/ONE PAGE Dan Feeney Solaris RE: Hoistway Entrances Solaaris(Vail,CO) Dan: To follow-up youx request,please be advised that all standard hoistway entrances have a U.L."B" whi�ch has a 1 %x hour rating when installed per the typical wall arrangements. A label is applied ta all haistway doors and ta all drywall hoistway fra�es. Masonry frarnes are not rat�d and therefore do not have an applied label;the rating is reached via the metal frame being grouted solid. Please let us know if you have any questions. Very Tru1y Yaurs, Jimi��torr�ia�rti Tim Tho�apson Senior Account Manager Co: Ron Johnson-TWC � Chris Keran-TWC SMC)KE GUARD�s�}stefrz �,Q('�� System Description.Tl�e Smoke Guard�`system Mode1400(M4Q0) creates a code compliant smoke and draf�control assembly when paired with cammoi�fire-iated elevator doors.The Smoke Guard screen con- sists ofa reinforced,transparent,polyimide fihn.The film ed�e is con- nected to flexible magnetic strips which adhere to ferrous nzetal rails as M444 PHY,SICAL PRQpERTIES the system deptoys creating a tight seal.The M400 uses standard build- ing power.The system may be connected to seandby power. uir leakage � resr;srAN�dRa:Ul 178.4 a�4i��IBC 20Q3 Codes and Stantlards.Tl�e M400 works in conjui�ction ��ith the al- � §715:3 3, IBC:200b §715�l.3:�� ready fire-rated elevator doors to exce�d the NI'AA and IBC require- TEST pARAMETER$ R10X pllbwi�ble is 3 ments for a sn�oke and draft cantrol assembly.This enables the cFinfsP C�0.,1 inch wg.�.72° F ancl �400°�or 8d'cFm For ci 4'x T`elevator elevator to open directly ai�to the corridor. � dot�r opemng; � � TEST kFSU4TS ACHI�YED qir ieakage.less . S3�stein O�eration.The Smoke Guard system is designed to protect ° than:33 cfm/sF open�ng or 9 24 cfi»�#or � elevator openings and shaft f�o�al vertical smoke migration.The sys- .4'x 7`��levator door,�operting`� . �� t�m will deploy whei�the snZake detector in front of tl�e elevator opening goes into alartn(ox-ot� lass of power to the unit).Tlie system afrteakag� is not designed to deploy on gen�ral alarm. TEST STANDARD N�PA y05 As the lobby smake detector gaes into alarm tl�e elevator will au- TEST P�1RAtv{�TERS, �1'►GX al�oyyabie� tomaticall return to the recall floor. If an elevator occu ant were to �3 cfrnJs��up Fo 0� �tich wg @�00°�,F � Y P or 8d cfm For ci d�x 7'�eie�dtai-door : ' ellcaunter a deployed M400,a screen rewind switch located on both opehing sides of the screen will aIlow for egress. If smoke is still actively TEST R�$ULTS ACH1EVEp arr leakage less ,.,. ' being detected,the screen will tl�en redeploy to seal the opening. tha� 1 34 cFm/;f opg�ing at 0 3 mch or If AC power is lost,the Smoke Guard system M400 operates on a 3752'�f�For,q 4'x 7'elevato�door>" ,-,� � fail safe basis,triggering screen deploy�l�ent.A deployment delay is openin� built into the system to avoid nuisazice deploys on brief pawer outage. oper:ingforce �: As power is restorecl,the scree��will auto�natically rewind i1�to tlie ��sr srA��Aao 3003 �BC§1008 7 �,:`�;:�� : � housiilg.This unit features a selt=aativating housing door closer. 2006 I�G �QQ$ 1,2 ;; � � TEST PAR,Al�iETERS F41`CB C;�O(I�S: Unit Dimensions.The M400 is available in custom screeu sizes to fit i�S7 RHSULTS qCH(EVED l5 IUs apphecl. ' door openings up to 60"wide(assuming a standard 2"elevator door � at the edge oF��scteen riiaterial�� ' �� frame). Consul�s�nokeguard.c�iyz or your laeal distributor for detailed �,.it'an�rnabrlrtystaii�Iard� °�: i�lformation on this product. TEST S7ANDARD"/AaST�VI E;8d Tess et,aAA�er�RS:i �� Installation.All Smoke Gua�•d units are installed by factory recog- flamespreod <25 ' nized personnel.There is minimal pz•eparation work. Installation re- smoke generation �50; quires a clear,plumb,unabstructed wall surface above the hoistway TEST RESULTS AGHIEYED rei�fot�ced;f�lm door, 120v AC power and a UL 268 conforming smoke detector. exceeds-Class A buildiqg building product standards � Smoke Guard systems meet or exceed the requirements of: Flam�.aptead�ndex �0: � � UL 17$4 Ai�Lerrkage Tests qfDoorAsse»i�ilies" smoke generated�5:., • �L 864 "Cattr-al Uilits fi�r I�ire Protective Signalif�ig Systerris" •ICC Ei�alucztiot7 Serviee Repo��t ESR-113b •2Q00 Intc�raationa/Building Code Sectio�t 714.2.3 •2003 h�ternatioracl!&.rildijzg Code 715.3.3 �SMOtKE GUARD� •2006 Interrtalion�t/Baiilclirig Corle Sectiotz 715.4.3 Y •NFPA 1(�S "Instcrllatdon �J�Sntoke Co�ztral Dov�^As.sen�blies 800.574.0330 WWW.SMC?KEGUARD.C�M SGS0�4,REV.6 •O 2007 SMOKE GUARD,INC. _.--�17bV AC LINE IN (by othersj I '� HOUSING � -"�� SMOKE i " ' DETECTOR MOUNTING PLATE � I �`��` �' � i l i I'I ° ` I U �I'', �� I9II i�l' k�I�i I, ` R � � _ � � ` � . . . f� � �4 � �' � , . � �tt i�� S� . . .. . . � �� E3�� ... ..:� � ,� KEVLAR� � CABLES � ��> � � t, - � �{ � �� . � .�' � �� ,��` POGYIMIDE z� � FLEXIBLE SCREEN � � �� µ-� MAGNETIC `�� EDGE REINFORCED �� WITH NOMEX�' �� , ��Y� ��fi � � �� „ � e $ ,��'�� f ° `' � � . ` �� u ' �� ` ��' : �:. ��` , ° � �`�� , �'�� SCREEN . ��: � ,��_�` REWIND �:��. '� ��}�: , � �, SWITCH � �, . ��s... � ��`,'`� � �� `� _ � � ` �`.��,� '"��THRE3HOLD � AUXILIARY RAIL � �� : �" � � > �x�� AUXILIARY RAIL BACKER �SMOKE GUARD� systems •--""'�� US PATENT NUMBERS 7,OOD,668 •7,028,7A2 AND OTHER US PATENTS PENDING SMOKE GUARDa systeirx � ` �� Listed Releasing Device.The M400 features a �� releasing device tested i�a accordance with the UL 864 standard. Fail Safe Secure.The M4QQ operates on a fail Rewind Switch.The Smoke Guard system safe basis_The loss ofAC power will trigger rewiud switch�nay be activated from both sides of screen deployment.There is a deployment delay the screen.This feature allows elevator occupants on power failure built into the system to avoid to exit from tl�e elevator car using the intcrior nuisance deploys on brief power outage. Upon (sl�aft side)of the switch.The screen will then re- restoration of power the screen will autoinatically dep(oy after egress,as long as the smoke detector rewind into the housing.The unit also features a continues to be activated,providing continued self-activating housing door closer, smoke protection for the etevator hoistway. � 0 � w w _ N V °� 0 �- ,tdM�.sio�-t }— � z ,G� `r' O ° � U � U _�...� w �,�,,,� p i i � � � � � i i O O � ti. 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