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Home My WebLink About10198789 - PermitllMtrry c culllralru ,lrulrt,, Eulldlne t r.rty Dlvl.lon 20 CMc C.nt Pl.st P.O, Eor lea8 (ll49) S.r rAn,CAe2r02 or4) ca7{Eoo wrYaantr{n!.ofg APP.00 CBC 20'18 A\tG E, 1! *rruf Proj.ct ptrn chock* 10198789 & 10198790Prolec-t Addror: SubJcct of Altcrnatlve or Modltlcatlon: o AA CODE APPEAL SECTION 2016 Callfomla Plumblng Codâ‚¬ (CPC[ tr 301.2 Allemate Materlals & Melhods 2016 Callfornla Mechanlcal Code (CMC)' O 105.0 Altomato Materlale & Methods by "Santa Ana 10 Modlflcatlons 1'l Altomato Matorlals tr1 2016 Calfomla Elecfrlcal Code (CEC)'tr SAMC* 8â‚¬81 Atemate Materlalstr SAItlCf' &682 Modlflcatlons Altornato or Modlflcstlon Propoeed M War-* Ail FD:rtr,a\rr <6rtLT Jurtlllcauon. Attach coplee of r.tcroncc!, tatt , exprrt oplnlona, ctc. Requeated By;ltzln //-27- /, Archlt$ilEfilneer/Contractor Slgneturâ‚¬ & Oate Plan Checker : RECOMMENDATION Date: _Tracklng # Not Recommended Submlttal Date: 1E2125 r"., ll:ff:33 Recelpt #: I Recornmended Plck up by: Roagon: Apprcved See Attachment Reason: Bulldlng OfilcleuDite Flre Marahal (lf appllcablelDate (BUILDING OFFICIAUFIRE MARgHAL ONLY} APPLICATION FOR ALTERNATE MATERIALS, DESIGN AND METHODS OF CON9TRUCTION o ( i, . O-'T-\ 201â‚¬ Callfomla Bulldlng Codo (CBC)' tr Denled Pl.nnlng & Bulldlng Agoncy Bulldlng Seroty Dlvlrlon 20 Civlc Cer er Plaza P.O. Box 1988 (M-19) Srnta An., CA 02702 (7r4) 647-5800 www.tanlr.!na.org ALTERNATE MATERIALS, DESIGN AND METHODS OF CONSTRUCTION APP-09 CBC 2016 B. Modlflcatlon of Bulldlng Standarde - CBC Sectlon 104.10 lntent: The provlslons of CBC Section 104.10 permlt thâ‚¬ Building Officlal to mako modificatlons to lho requlrements of the code lf he flnds that the strict application of the cod6 is lmpractlcal and, furthermore, that the modlfication ls ln conformlty wlth the lntenl and purpose of the Californla Bulldlng Code cuffently ln sffâ‚¬ct. C. Fee Requlred R6quest made for alternate matâ‚¬rlals, design and methods under the appllcable code requlres the applicant to pay a research and processlng fee. Please telephone (714) 647-5800 for current fee. D. Altornato Materlals or Modlflcation Request Procoss '1. The request must bâ‚¬ ln wrlting wlth a compleled Alternate Methods appllcation form (APP-09) and shall bâ‚¬ submltled to the bulldlng permlt counter. 2. Dlroct lâ‚¬tter to: Mr. Jason Kwak, PE,CBO, CASp Bulldlng Safety Manager Clty of Santa Ana Bulldlng Safety Dlvislon P. O. Box 1S88 ([+.19) Santa Ana, CA927O2 3. Notâ‚¬ prdect address and plan check number. 4. Clearly stato under what soctlon of the CBC, CEC, CPC or CMC the request ls being made. 5. lt ls the spplicanl's responslbllity to submlt subatantatng data and ovldence to show that tho altemate 13 ln fact equlvalent to tho porformance requlred by tr CBC, CEC, CPC or CMC. Tesl r6po.ts shatr bo those requked by th6 approprlate code and shall haw been perfomed by a râ‚¬cognlzod tesung agoncy such as lhe lnternatlonal Code Councll(lCC), thâ‚¬ State Firâ‚¬ Marshal (SFM), Factory Mutual, Undeildlers Laboratory (UL), National Flre Protection Assodaton (NFPA). 6. Roquâ‚¬st for a modillcation shall clearly Justfy how cald modlflcatlon ls ln conformlty wlth the lntont 6nd purpose of the appllcablâ‚¬ code. Tho code does not allow the Bulldlng Officlal lo lssue a varlanca, nor walrre bulldlng standard requlraments. 7. Attach drawlngs (floor plan, detalls, 6tc.) for darlffcaton of subjec{ requ63t. 8. A ch6ck made payabte to the'City of Santa Ana'h the amount ftrqulrod by the current fee resolutlon. Please telephone (714) 647-5800 for curâ‚¬nt foe. Rev:06-10-20t9 Pre. I ol 1 A. Alternate Materlalg, Deslgn and Methods of Conltructlon - CBC Sectlon 104,11 lntent: To encouragâ‚¬ the use of state-of-the-art concopts ln conskuction and materlals whlch currenlly are not covered by the code, however, do meet lhe psrformance lntended by the Callfomla Bulldlng Code cunently ln effect. (nrst Point Apartments - Sonta Ana, CA) Commont #25 TAMMR Juslltlcatlonl: Provide construction dotails to show compliance wilh requhements of CBC Soction 1206.3.2 tor horizontal ai lntake for each coud yard for lhis proiecl. Resoonse: Horlzontal alr lntake at tho bottom of each Level 2 court ln Building A and B ls providâ‚¬d by way ot tha open-end6d ,irefightâ‚¬r lunnel connecting each court to at least one adjoining murt(s). CBC Sscllon 1206.3.2 rsquires that cou( â‚¬ndosed on all four sides to be provided with a horizontal alr lntake at tho bonom of the court or be adjacont to a yard or publlc way. To comply with the lntent of this soction, lhe op6n-6nded flrefighler tunnels will provide an avenue for natural ventilation from an adjacent court that is equivalent to the requlred opening of 10 square feet connected directly lo a street or yard, Tho courts ln the prolect buildings are much larger than the minlmum dimensions roquired by Section 1206.3 (i.e. 9'x 16' mlnimum dimensions for a s-story court). Courtyards 1 and 2 ln Bullding B have approximate dimensions of 62' x 90'whora Courtyard 3 has approximate dimensions of 48'x90'. These dlmenslons provlds a court area that ls at loast 30 times larger lhan the mlnimum sizo court required by CBC Seclion 1206.3. The larger sizes of ths courts within the project bulldings do not have the sams characteristics of a smaller four-sided court that can act as a chlmney durlng summer weather whon lhe building mass is heated from the daytime sun (referenced attachad drawing sheet A2.2.1). Additionally, it ls not lntonded for lhe courts to function as an efficlent source of natural ventilalion for the spaces they front (i.e. dwelllng unlts, loungos, etc) therofore the requirement for having the courts abut a yard or public way is l6ss esssntial. ,hosa rwo oxlt pas sagowdys show complldnce with tllla CBC Sectbn 1024.1.'... exlt pdssdgewdy otl olher then lovel of exit discharyo, shall lermlnale al an exit'Arsq the opening protection in lhe exlt passogeways shal, comply with Sectbns 1024.5, 716, and Table 716.5 roqulrements. Response: Th6 firâ‚¬fighl6r tunnols ar6 provided for fire dâ‚¬partment sccess to the lnterior courtyards per OCFA Guldelin6 B-09. These tunnsls ar6 not utilizsd as an sxlt cornponent of the eorsss svstsm and are not rsouired to comolv with tho rgoulroments for exit oassaoewavs. The cunent ogross schsme does not rBquiro the lntroducuon of exit passageways at the lo$/est residentiel level 8s defined in the CBC and as regulated by CBC Section 1024. These tunnels will be referred to as'2-Hour Ratod Firerighter Tunnels' ln lleu of'2-Hour lnterior Exit Passagewa/ as previansly sho,vn on tho dra$/ings. Per OCFA Guideline B-09, the interior doors opening into the tunnels will bâ‚¬ g0-minute rated self- or automatic-closing assemblies, but lhe ends of each segment of tunnel that connects the open court yards should not be requlred to be endosed since the opâ‚¬ning is required for firotighters to conducl their operations. ln addition to thâ‚¬ dan checl cornment responses abo/e, tho design tâ‚¬am nror.rld like to address the disatErgo of interior 6xlt stalru/ays at Lâ‚¬vel l: Eoress Court Condition: The interior exit stdruray identilied as Stair *1 discharges st Lâ‚¬vd 1 to a p.ivate sidâ‚¬ualk located on the rrEst side of the project that leads to tho public way on East First Streâ‚¬t. The property linâ‚¬ is located apprqimately 6.5- feet frqn the face of the â‚¬xterior wall on the vuesi side of the building. As such, thls cteatos an egrâ‚¬ss court conditicn that is less than 1o-feet in widlh measured betLEen the exterior wall cf ttle boildng ard the propâ‚¬rty line. See Exhitit A attachâ‚¬d. Psgâ‚¬ 3 oI4 I Novâ‚¬rnbâ‚¬r 25, 20'19 I Rsr, I jenscnhqhas.cont (Fitst Point Apa ntents - *rnto A,ro, C{) Where a building is constructed on the adjacent property and withln 3.5 feet of the property the extarior wall of this building will bâ‚¬ required to achieve at lâ‚¬ast a 1-hour rire resistance rating based on fire separation distance and Table 602. Although thâ‚¬ exterior wall ot the adjacent bullding may have openings located '1o-feet above the walking surface of the egress court, the opsnings would not need to be rated since the egress court serves occupants exiting the First Pointe Apartments and not the adjacent building. lf the future adjacent bullding utilizes this same egress coun as an exil component then the exterior wall of the adiacent building will need to bâ‚¬ rated and have protec,ted openlr -^ lsaac Martlnez, PE, CFPS Sr. Fira Protec{on Enginesl imartinez@jensenhughes.com 213.412.14@ HARO o FP 1 893 Exp tlra Page 4 of4 I Novernber 25, 20'19 I Ret, 1 jensenluglns.cant Per the requirements of Sâ‚¬ction '1028.4, the oxterior walls of the building will be required to achieve at least a 1- hour fire resistancâ‚¬ rating for a distance of lo-feet above the floor of the egress court. Oponings in this portion of thâ‚¬ wall should achieve a 4s-mlnute firs protectlon ratlng. The exterior wall at this location ls alroady constructed to achieve I l-hour rating, Unprotocled openings in this wall will be lnfilled. The extent ofthe rating should oxtend as shown on the attachod exhibit. Sincerely, Jensen Hughes llt Irlr Ii iilli titoli,txScE Yii,lralirii<;,r' Ia-e :E lffillrHil ' ! 8 zIFtro(L li li i I E 1 i I t I I ! II Itl ii i'Ir iiiii iiriiiiiiiii ffiffiIH l-lr! rd I I t I ffi ,iiiii ffill 2 il,il ,! t I I I It i.ll liitii iiritl ,irirriiii $iiiiiiiii *I i#*rit i ldr @ aaf,oozuul 7 @