detailing)considerations) for)multi2story)wood) frame)buildings
TRANSCRIPT
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Detailing)Considerations)
for)Multi2Story)Wood)
Frame)Buildings)
Presented(by:(Lisa(Podesto,(PE,(MS(Senior(Technical(Director(
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“The(Wood(Products(Council”(is(a(Registered(Provider(with(The(American(Institute(of(Architects(Continuing(Education(Systems((AIA/CES),(Provider(#G516.((!Credit(s)(earned(on(completion(of(this(course(will(be(reported(to(AIA(CES(for(AIA(members.(Certificates(of(Completion(for(both(AIA(members(and(nonQAIA(members(are(available(upon(request.(((
This(course(is(registered(with(AIA(CES(for(continuing(professional(education.(As(such,(it(does(not(include(content(that(may(be(deemed(or(construed(to(be(an(approval(or(endorsement(by(the(AIA(of(any(material(of(construction(or(any(method(or(manner(of(handling,(using,(distributing,(or(dealing(in(any(material(or(product.(___________________________________________
Questions(related(to(specific(materials,(methods,(and(services(will(be(addressed(at(the(conclusion(of(this(presentation.((
(
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Course)Description)
This(seminar(will(provide(an(overview(of(detailing(issues(related(to(the(design(of(fourQ(and(fiveQstory(woodQframe(buildings(under(the(International*Building*Code.((Provided(by(an(expert(in(wood(design(and(engineering,(it(will(cover(common(detailing(choices(related(to(fire(and(life(safety,(such(as(detailing(at(exterior(walls,(as(well(as(balconies(and(shafts.(Examples(of(various(building(configurations(and(site(layouts(will(be(used(to(illustrate(common(detailing(choices.(
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Learning)Objectives)
1. Evaluate(examples(of(midQrise(buildings(with(an(emphasis(on(configurations(and(site(layouts(
(2. Recognize(common(detailing(used(in(multiQstory(structures(
across(the(country(for(exterior(wall(to(floor(intersections(
3. Identify(IBC(requirements(for(fire(walls(and(their(impact(on(detailing(choices.(
(
4. Discuss(detailing(options(related(to(the(design(of(balconies(and(shafts(in(multiQstory(wood(buildings(
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Outline)
• MidQrise(Configurations(
• Design(Considerations(• Fire(Rated(Wall(Assemblies(
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Mid2Rise)Construction)Overview)
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Walk2up/)Tuck)Under)
Benefits:(
• Eliminates(need(for(SQ2(parking(garage(
• Can(be(all(wood(
• Least(expensive(overall(but(lowest(densification(rates(
(
(
First(floor(walk(up(units(with(private(garage(
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Wrap2Around))
Benefits:(
• enhanced(security((
• Centralized(access(to(parking(
• Visual(appeal(from(street(
• More(expensive(than(walk/up(tuckQunder(
• 5(story(yields(60Q80(units/acre((
(
(
(
(
Walk(up(units(surround(parking(structure(
(
(
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Podium)
Benefits:(• Increased(number(
of(stories(• Accommodates(
MixedQuse(occupancies(
• Most(expensive(but(can(allow(increased(density(
(((
Multiple(stories(of(wood(over(an(elevated(concrete(deck(
(
(
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Podium)
4(stories(of(residential(over(podium((parking(or(retail)((
• 60Q80(units/acre(
(
(
Inman(Park(Condos,(Atlanta,(GA(Davis(&(Church(
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Podium)
5(stories(over(subterranean(parking(
5(stories(over(retail(
• 100Q120(units/acre(
(
(
(
AvalonBay(Stadium,(Anaheim,(CA(VanDorpe(Chou(Associates(
Inman(Park(Condos,(Atlanta,(GA(Davis(&(Church(
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Podium)
5(stories(over(residential(podium(
• 120Q140(units/acre(
(
(
(
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Podium)
5(stories(with(mezzanine(+(residential(podium(
• 125Q145(units/acre(
(
(
(
120(Union,(San(Diego,(CA(Togawa(Smith(Martin(
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Sloped)Sites)
Seattle,(WA(PB(Architects(
Fashion(Valley,(CA(AvalonBay(Communities((
Fashion(Valley,(CA(AvalonBay(Communities((
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Hotels((RQ1)(
Apartments((RQ2)(
Condominiums((RQ2)(
Student(housing((RQ2)(
Live/work(units((RQ2)(
Assisted(living((RQ4)(
Nursing(homes((IQ2)(
Typical)Mid2rise)Occupancy)
(AQ2)(Restaurants/cafeterias(
(AQ3)(Workout(facilities(
(AQ3)(Meeting(rooms((
(B()Offices((
(M)(Shops((
(SQ2)(Parking((
(SQ1)(Storage(
(B()Offices((
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Mixed)Use)Occupancy)
Located(at(woodworks.org(–(design(tools(–(online(calculators(–(Heights(and(Areas(Calculator(
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2012)Code)Conforming)Wood)
Available(for(Free(Download:(www.awc.org((((
(
(
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Outline)
• MidQrise(Configurations(
• Design(Considerations(
• Structural((Load(Transfer/Serviceability)(• Acoustic(• Building(Envelope((• Constructability(• Fire(
• Fire(Rated(Wall(Assemblies(
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Structural((• Direct(bearing/(no(add’l(
hardware(Constructability(• Framing(can(be(completed(
before(drywall(and(insulation(are(installed(
• Common(length(studs(
Platform)Framing)
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No(Scale(
Structural((• Additional(hardware/no(direct(
bearing(• Can(help(minimize(building(
shrinkage(Rated(Assemblies(• May(accommodate(continuity(
in(exterior(walls(in(Type(III(construction(
Constructability(• Custom(length(studs(
Semi2balloon)Framing)
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Structural)Considerations)
(
(
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Solution)12)Plain)Unreinforced)Brick2h>30’)
Allows(for(vertical((shrinkage(of(wood((framing(
Veneer(must(be(designed((per(ACI(530(section(2.2(as((plain(unreinforced(masonry(
Anchors/ties(to(be((spaced(a(maximum((of(32”(o.c.(horiz.(And((18”(o.c.(vert.((except((seismic)(
Requires(steel((lintel(at(openings(
Joints(must(allow(for(all(differential((movement((lateral(drift(and((vertical(shrinkage(of(wood(Framing(Etc.).(Weight(of(brick(must(not((be(supported(by(wood(Framing((
Wood(backer(studs(
Brick(goes(into((flexure(when(wall((studs(deflect(
Design)must)be)in)
strict)conformance)
with)ACI)530)section)
6.2.12Alt.)design)
method)(engineered))
)
Design)to)section)2.2)
(ASD))or)3.2.2)
(strength))
Unreinforced)masonry)
)
Brick)veneer)must)be)
self)supporting)and)
not)supported)off)of)
the)wood)framing)
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Solution)22)Structural)Reinforced)Brick)
Brick)units)are)similar)to)
CMU’s)where)vertical)and)
horizontal)reinforcing)can)
be)installed)
• Veneer)spans)floor)to)
floor)without)transferring)
loads)to)walls.)
• Loads)are)dumped)
directly)into)floor)
diaphragms))
• Steel)lintels)over)
openings)are)not)required)
• Intermediate)anchors/ties)
are)not)required)
• Wall)spans)vert.)&)horiz.)
Between)spaced)anchors)
)
Reinf.(horizontal(bond((beam(or(lintel(units((over(openings(
Spaced(anchors(must(allow((for(all(differential(movement(((lateral(drift,(vertical(shrinkage((of(wood(Framing,(etc.).(Weight((of(brick(must(not(be(supported((by(wood(Framing((
Wood(backer(studs(
Reinforcement((reduces(expansion(and(cracking(
Anchors/ties(are((tied(directly(into((floor(diaphragms(
Veneer(acts(as(complete((unit,(not(as(individual((Segments.(Supports(self((weight(plus(outQofQplane((loads(
#3(or(#4(rebar((typ.)(
Heavier(anchors(are((not(as(prone(to(fire((damage(
4”)nom.)or)greater)
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Outline)
• MidQrise(Configurations(
• Design(Considerations(
• Structural((Load(Transfer/Serviceability)(• Acoustic(• Building(Envelope((• Constructability(• Fire(
• Fire(Rated(Wall(Assemblies(
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Acoustic)Detailing)
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Acoustic)Detailing)
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Acoustic)Detailing)
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Outline)
• MidQrise(Configurations(
• Design(Considerations(
• Structural((Load(Transfer/Serviceability)(• Acoustic(• Building(Envelope((• Constructability(• Fire(
• Fire(Rated(Wall(Assemblies(
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http://www.fpinnovations.ca/ResearchProgram/AdvancedBuildingSystem/designingQenergyQefficientQbuildingQenclosures.pdf(
Buildings(in(Marine(to(Cold(Climate(Zones(in(North(America(
Resources
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Buildings)in)Marine)to)Cold)Climate)Zones)in)North)America)
)
Chapter)3:)Moisture,)Air)and)Thermal)Control)
• Building(as(a(System(• Climate(Zones(• Interior(Climate,(HVAC(Interaction(• Critical(Barrier(Concept(• Control(of(Rainwater(Penetration(• Control(of(Air(Flow(• Controlling(Condensation(• Construction(Moisture(• Controlling(Heat(Flow(and(Insulation(• Whole(Building(Energy(Efficiency(• Computer(Simulation(Considerations(for(WoodQframed(Enclosures(
Resources
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Outline)
• MidQrise(Configurations(
• Design(Considerations(
• Structural((Load(Transfer/Serviceability)(• Acoustic(• Building(Envelope((• Constructability(• Fire(
• Fire(Rated(Wall(Assemblies(
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Case)Study:)University)of)Washington)
UW)West)Campus)Student)Housing)
Location:(Seattle,(WA(
1700(beds(in(3(halls(and(2(apt(bldgs(
$177/sf(
4/5(bldgs(met(2030(challenge((60%(reduction(in(energy(consumption)(
Architect:(Mahlum(Architects(
Engineer:(Coughlin(Porter(Lundeen(
Contractor:(Walsh(Construction(
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Case)Study:)Innovations)in)Wood)
Architect:(Cooper(Carry,(The(Preston(Partnership(
Engineer:(Ellinwood(+(Machado,(Pruitt(Eberly(Stone(
Contractor:(FortuneQJohnson(Contracting(
Completed:(2012(
Photo(credit:(Gables(Residential(
Emory)Point)
Location:(Atlanta,(GA(
3(buildings(complete(Q(Luxury(Apt.,(retail,(restaurants(
• (1)(5(story(Type(III(wood(frame(over(slab(on(grade(
• (2)(4(stories(of(wood(over(1(story(concrete(podium(
35%(savings((
• $14/sf((wood(concept)((
• $22/sf((PT(conc.(Slab(and(frame)(
(
(
(
(
(
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Stella)Apartments,)
Marina)Del)Ray,)CA)
Architect:(Design(ARC.((Los(Angeles,(CA(Photos:(Lawrence(Anderson,(www.lawrenceanderson.net(
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Case)Study:)Maximizing)View)and)Value)With)Wood)
Architect:(PB(Architects(
Engineer:(Yu(&(Trochalakis(
Contractor:(Norcon,(NW(
Completed:(2009(
Photo(Credit:(Matt(Todd(Photography(
Marselle)Condominiums)
Location:(Seattle(WA(
Type(IIIA(condo(complex(
5(Q1/2(stories(of(wood(over(2(stories(of(concrete(
mezzanine(added($250K(cost(but($1M(in(value(
30%(cost(savings(over(concrete(
Time(savings(over(steel(
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Outline)
• MidQrise(Configurations(
• Design(Considerations(
• Structural((Load(Transfer/Serviceability)(• Acoustic(• Building(Envelope((• Constructability(• Fire(
• Fire(Rated(Wall(Assemblies(
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Detailing for Fire Resistance
Different areas of fire design:C b tibilit• Combustibility
• Fireresistance• FireClass• FireClass• FireProtection
Key Differences in Fire Ratings for Construction Types
IIIA IIIB VAExterior wall framing FRT FRT non-FRTExterior wall fire rating 2 hr 2 hr 1 hrFloor assembly fire rating 1 hr 0 hr 1 hrFloor assembly fire rating 1 hr 0 hr 1 hrFire wall rating 3 hr 3 hr 2 hr
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Fire Resistance Rating
Basic assumption is that fires begin at the interior andrated wall assemblies are not required from the exteriorrated wall assemblies are not required from the exteriorunless close to another structure.
Interior
FireProtection onInside ofInside ofBuilding
Exterior
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Fire Resistance Rating IBCTable 601
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Fire Resistance Rating – IBCTable 602Exterior Fire Resistance Rating
Table 601Table 602 establishes requirementsTable 602 establishes requirementsstructures separated by 10’ 30’ they are typically 0 or 1 hour rated
TABLE 602
FIRE SEPARATIONDISTANCE = X (feet)
TYPE OFCONSTRUCTION
OCCUPANCY GROUPH
OCCUPANCY GROUP F1, M, S 1
OCCUPANCY GROUP A, B,
E, F 2, I, R, S 2, Ub
X < 5c All 3 2 1
FIRE RESISTANCE RATING REQUIREMENTS FOR EXTERIOR WALLS BASED ON FIRE SEPARATION DISTANCEa, e
5 < X <10 IA 3 2 1Others 2 1 1
10 < X < 30 IA, IB 2 1 1d
IIB, VB 1 0 0
Others 1 1 1d
X > 30 All 0 0 0For SI: 1 foot = 304.8 mm.a. Load bearing exterior walls shall also comply with the fire resistance rating requirements of Table 601.b For special requirements for Group U occupancies see Section 406 1 2
e. The fire resistance rating of an exterior wall is determined based upon the fire separation distance of the exterior wall and the story in which thewall is located.
b. For special requirements for Group U occupancies see Section 406.1.2c. See Section 705.1.1 for party walls.d. Open parking garages complying with Section 406 shall not be required to have a fire resistance rating.
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Fire Resistance Rating – IBC 705.5
ExteriorWallsFire Separation > 10’ – shall be rated for exposure fromp pthe inside in accordance with 601 and 602Fire Separation < 10’ – shall be rated for exposure to bothsides in accordance with 601 and 602
X ’Interior
X < 10’
tLine
ExteriorLot
Fire Protection onExteriorWalls When < 30’
Table 601 & 602
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Choosing)Fire)Rated)Assemblies)
Tested(assemblies((ASTM(E119)(per(IBC703.2:(• UL:(http://database.ul.com(((• Gypsum(Catalog:(www.gypsum.org((• Other(tools:(www.usgdesignstudio.com(• AWC(DCA3(• APA(Fire(Rated(Systems:(
http://www.apacad.org/cad_detail.cfm?id=2((
Alternate(Methods(per(IBC703.3(• Deemed(to(comply(tables(per(IBC721(• Calculated(Fire(Resistance(per(IBC722(
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Outline)
• MidQrise(Configurations(
• Design(Considerations(• Fire(Rated(Wall(Assemblies(
• Overview(• Exterior(Walls(• Fire(Walls(• Fire(Barriers(• Fire(Partitions(• Balconies(
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Fire2resistance)Rated)Wall)Assemblies)
Tested(under(a(standardized(test(fire(exposure(for(a(given(duration(to:((
1. Prevent(the(passage(of(flame(and(temperature(rise(from(one(side(to(the(other(
2. Continue(to(provide(vertical(structural(support(when(exposed(to(fire(and(elevated(temperatures((
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Fire2resistance)Rated)Wall)Assemblies)
))))))Fire)Confinement ) ))))Structural)Performance)
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Fire2resistance)Rated)Wall)Assemblies)
There(are(five(basic(types(of(fireQresistance(rated(wall(assemblies:(
• Light(Frame(Bearing(Walls((IBC(704.4.1)(
• Exterior(Walls((IBC(705)(
• Fire(Wall(or(Party(Wall((IBC(706)(
• Fire(Barrier((IBC(707)(
• Fire(Partition((IBC(708)(
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Light)Frame)Bearing)Walls)(IBC)704.4.1))
Required(fireQresistance(is(the(greater(of:(• FireQresistance(rating(found(in(Table(601(based(on(the(
building(type(of(construction.((• The(required(fireQresistance(rating(required(for(fireQ
resistanceQrated(assemblies(supported(by(the(structural(wall.((
www.awc.org(FAQ:((What*is*the*correct*application*of*2012*IBC*Sections*704.2*(Column*Protection)*and*704.3*(Protection*of*the*primary*structural*frame*other*than*columns)*to*wood*construction?*
![Page 48: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/48.jpg)
Outline)
• MidQrise(Configurations(
• Design(Considerations(• Fire(Rated(Wall(Assemblies(
• Overview(• Exterior(Walls(• Fire(Walls(• Fire(Barriers(• Fire(Partitions(• Balconies(
![Page 49: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/49.jpg)
Exterior)Walls)(IBC)705))
Exterior(walls(have(to(be(rated(to(which(ever(is(greater(of….((• Table(601:(The(fireQresistance(rating(required(to(
maintain(vertical(structural(support(and(is(based(on((• the(type(of(construction((• whether(or(not(the(wall(is(load(bearing(
• Table(602:(The(fireQresistance(rating(required(to(prevent(spread(of(fire(from(the(inside(to(the(outside((or(outside(to(inside)(and(is(based(on((• type(of(construction((• occupancy(group(• fire(separation(distance((FSD)(associated(with(the(
exposure(of(the(exterior(wall(
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Exterior)Walls)(IBC)705))
An)exterior)wall)is)defined)as)a)wall)that)is)used)as)
an)enclosing)wall)of)a)building)other)than)a)fire)
wall.)There)is)no)requirement)for)an)exterior)wall)to)
extend)to)the)foundation)in)a)stepped)building.))
(
(
(
(
Posts,(beams(or(walls,(that(support(a(rated(exterior(wall(must(be(fire(–resistance(rated(not(less(than(the(rating(of(the(supported(wall((IBC((704.1()(
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Fire)Resistance)Rating)–)IBC)705.5))
Exterior)Walls)
Fire(Separation(>(10’(–((shall(be(rated(for(exposure(from(the(inside(in(accordance(with(601(and(602(Fire(Separation(<(10’(–(shall(be(rated(for(exposure(to(both(sides(in(accordance(with(601(and(602((
Interior)
Exterior(
Fire(Protection(on(Exterior(Walls((When(<(30’(
(X(<(10’(
Lot(L
ine(
Table(601(&(602(
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2"HOUR EXTERIOR WALL
FRAMING AT 16" O.C.. MIN. 2 X 4
1 LAYER 5/8" FIBERGLASS MAT GYPSUM SHEATHING
STRUCTURAL WOOD PANEL(S)
WHERE REQUIRED FOR SHEAR
2"HOUR RATING PER UL DESIGN NO. U371
EXTERIOR CEMENT PLASTER, MIN. THICKNESS
3/4" TO FACE OF LATH
MIN. 3" THICK MINERAL
WOOL BATT INSULATION
2 LAYERS 5/8" TYPE 'X' GYPSUM
BOARD AT INTERIOR CONDITIONS
EXTERIOR CEMENT PLASTER OVER FIBERGLASS MAT GYPSUM
SHEATHING AT EXTERIOR CONDITIONS
2)HR)Exterior)Wall)Assembly)–)Type)III)
Common(issues(with(tested(assemblies:(
• Assembly(AsymmetryQ(separate(assemblies(for(each(side(
(
(
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Adding)lateral)resistance)
Common(issues(with(tested(assemblies:(
• Inclusion(of(wood(structural(panel(–(ESR2586(
• FRT(may(also(be(substituted(for(untreated(wood(
(
(
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1hr)rated)floor)assemblies)–)Type)IIIA/VA)
Common(issues(with(UL(approved(assemblies:(
• Shallow(Floor(depthQ((
• Use(prescriptive(assemblies(Q(IBC(
721.1(2)(assembly(
14Q1.1((
• Or(use(the(CAM(
method(in(IBC(722((
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No(Scale(
• 5/8”(Type(X(GWB(• 1(layer(for(1hr(rating(• 2(layers(for(2hr(rating(
• Fire(Retardant(Treated(• Wall(studs,(plates(and(sheathing(((
• Untreated(Lumber(• Floor(framing((solid(sawn(or(engineered)(
• Floor(sheathing(((
Type)III)Construction)
1(
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No(Scale(
• 5/8”(Type(X(GWB(• 1(layer(for(1hr(rating(• 2(layers(for(2hr(rating(
• Fire(Retardant(Treated(• Wall(studs,(plates(and(sheathing(((
• Untreated(Lumber(• Floor(framing((solid(sawn(or(engineered)(
• Floor(sheathing(((
Continuity)of)FRT)
2(
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No(Scale(
• 5/8”(Type(X(GWB(• 1(layer(for(1hr(rating(• 2(layers(for(2hr(rating(
• Fire(Retardant(Treated(• Wall(tuds,(plates(and(sheathing(• [2x(Blocking((counts(for(1hr(fire(protection(per(NDS(16.2.1)](
• [Floor(sheathing(4’Q8’(in](((
• Untreated(Lumber(• Floor(framing((solid(sawn(or(engineered)(
• Floor(sheathing(((
Type)III)Construction)Detail)Example)
3(
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No(Scale(
• 5/8”(Type(X(GWB(• 1(layer(for(1hr(rating(• 2(layers(for(2hr(rating(
• Fire(Retardant(Treated(• Studs,(plates(and(sheathing(• 2x(Blocking((counts(for(1hr(fire(protection(per(NDS(16.2.1)(
• [Floor(sheathing(4’Q8’(in](((
• Untreated(Lumber(• Floor(framing((solid(sawn(or(engineered)(
• Floor(sheathing(((
Type)III)Construction)Detail)Example)
4(
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CONTINUE(GYPSUM(TO(BOTTOM(OF(SHEATHING(
• 5/8”(Type(X(GWB(• 1(layer(for(1hr(rating(• 2(layers(for(2hr(rating(
• Fire(Retardant(Treated(• Studs,(plates(and(sheathing(• [Floor(sheathing(4’Q8’(in](((
• Untreated(Lumber(• Floor(framing((solid(sawn(or(engineered)(
• Floor(sheathing(((
Type)III)Construction)Detail)Example)
5(
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AvalonBay)Stadium)
Location:(Anaheim,(CA(
251(Apts.,(13K(sf(retail/restaurant(
Type(III(modified(
50%(of(their(projects(are(podium(
SemiQballoon(framed(at(exterior(walls(
(
(
Case)Study:)Wood)Buildings)Aim)High)
Architect:(Withee(Malcolm(Architects(
Engineer:(VanDorpe(Chou(Associates(
Developer/Contractor:(AvalonBay(Communities(
Photo(credit:(Arden(Photography(
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Carbon)Case)Study:)High)Density)Ava
lonB
ay(Stadium
Q(Ana
heim
,(CA(
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Type)III)Construction)Detail)Example)
What)is)being)enforced)in)jurisdictions)
you)are)working)in?)
)
)
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Outline)
• MidQrise(Configurations(
• Design(Considerations(• Fire(Rated(Wall(Assemblies(
• Overview(• Exterior(Walls(• Fire(Walls(• Fire(Barriers(• Fire(Partitions(• Balconies(
![Page 64: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/64.jpg)
Fire)wall))))))))))))))))
(IBC)706))
• Divides(structure(into(separate(buildings(
• Continuous(from(foundation((or(top(of(three(hour(podium)(to(or(through(roof(
• Structural(stability(required((to(allow(collapse(on(either(side(from(fire(without(causing(collapse(of(fire(wall(
• Special(requirements(at(roof(and(intersection(with(exterior(walls(,(at(horizontal(projecting(elements(and((between(stepped(buildings(
• Required(to(be(of(nonQcombustible(construction((except(in(type(V(construction(
• 2(to(4(hour(rated((Table(706.4)(
Fire)Barrier))))))))))
(IBC)707))
• Designed(to(restrict(the(spread(of(fire(with(continuity(through(the(building(
• Divides(structure(into(fire(areas,(and(fire(barriers(are(required(for(various(purposes(such(as(shaft(enclosures,(exit(enclosures,(atrium(separation,(occupancy(separations,(and(control((or(incidental(use(areas.(
• Supported(by(construction(of(equal(fire(resistanceQrating((except(for(incidental(use(areas(in(type(IIB,(IIIB(and(VB(construction)(
• 1(to(4(hour(rated((table(707.3.10)(
Fire)Partition))))
(IBC)708))
• Separates(dwelling(units,(sleeping(areas,(corridors,(and(tenant(spaces.(
• May(terminate(at(the(lower(side(of(a(fire(–resistance(rated(floor/ceiling/roof(assembly(
• In(most(instances(fire(partitions(are(not(required(to(be(supported(by(fire(resistanceQrated(construction(in(type(IIB,(IIIB(and(VB(construction((section(708.4)((
• Rated(1(hour(or(less((IBC(section(708.3)(
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Fire)Walls)2)706)
Used:(
• To(create(separate(buildings(
• As(a(Party(Wall((lot(line)(
Structural(Stability(
• Allow(for(structural(collapse(on(either(side(while(wall(stays(in(place(
• OR(double(wall(per(NFPA(221(
(
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Fire)Walls)
Design(Options(NFPA(221:(
1. Single(wall(
2. Double(Wall(
3. Cantilevered(Wall(
(
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Fire)Walls)–)Diaphragm)Continuity)
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Fire)wall)Detailing)
CAD(&(Revit(Details:(www.woodworks.org(((
3"HOUR FIRE WALL AT FLOOR/CEILING
3"HR. ASSEMBLY: 1 5/8" METALSTUDS WITH 3 LAYERS 1/2" TYPE 'X'
GYP. BD. EACH SIDE
3"HOUR FIRE CAULKING
1" AIR GAP
RESILIENT CHANNELS
2 X 4 STUD WALL EACH SIDE, WITHSTRUCTURAL WOOD PANELS AS
REQUIRED FOR SHEAR AND 1 LAYER5/8" TYPE 'X' GYP. BD.
CONTINUOUS 13 1/2" WIDE 14 GA. GALV.SHT. METAL
CONTINUOUS 16 GA. TRACK TOP ANDBOTTOM
FIRE SAFING
CONTINUOUS 16 GA. COMP. CHANNEL
WOOD TRUSS FRAMING WITHOUT WOOD PANEL DIAPHRAGM RUNNING THROUGH FIRE WALL3"HOUR FIRE WALL AT FLOOR/CEILING
3"HR. ASSEMBLY: 1 5/8" METALSTUDS WITH 3 LAYERS 1/2" TYPE 'X'
GYP. BD. EACH SIDE
CONTINUOUS STRUCTURAL WOODPANELS " USE FIRE"TREATED PANELS
THROUGH WALL CAVITY¹
¹CONSULT LOCAL JURISDICTION HAVING AUTHORITY FOR ACCEPTANCE OF FIRE"TREATED WOODPANELS RUNNING THROUGH 3"HOUR ASSEMBLY IN THIS APPLICATION.
RIM JOIST WITH SOLID BLOCKING
3"HOUR FIRE CAULKING
1" AIR GAP
RESILIENT CHANNELS
2 X 4 STUD WALL EACH SIDE, WITHSTRUCTURAL WOOD PANELS AS
REQUIRED FOR SHEAR AND 1 LAYER5/8" TYPE 'X' GYP. BD.
I"JOIST FRAMING WITH WOOD PANEL DIAPHRAGM RUNNING THROUGH FIRE WALL
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Fire)Wall)Assemblies)
IBC)706.3)–(Fire(walls(shall(be(of(any(approved(nonQcombustible(materials.(
(Exception:)Buildings(of(Type(V(construction(
(
(
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2)HR)Fire)Wall–)Type)V)
2"HOUR FIRE WALL ASSEMBLY
2 1/2" METAL STUDS AT 24" O.C.
2 LAYERS 5/8" TYPE 'X' GYP. BD. ON EACH SIDE OF METAL STUDS
WOOD STRUCTURAL PANELS WHERE REQUIRED FOR SHEAR
2"HOUR RATING PER GA FILE NO. WP 1548
WOOD STUD WALLS ON EITHERSIDE OF FIRE WALL
AIR
GA
P
0' "
1"
AIR
GA
P
0' "
1"
INTERIOR OR EXTERIOR FINISH AS REQUIRED
BATT INSULATION (OPTIONAL)
http://www.usgdesignstudio.com/wallQselector.asp?framingType=18708&bldgSystem=18620((((((((((((((((
CAD(&(Revit(Details:(www.woodworks.org((
![Page 71: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/71.jpg)
3hr)Fire)Wall)Assemblies)–)Type)III)
3"HOUR FIRE WALL ASSEMBLY
1 5/8" METAL STUDS AT 24" O.C. MAX.
3 LAYERS 1/2" TYPE 'X' GYP. BD. ON EACH SIDE OF METAL STUDS
WOOD STRUCTURAL PANELS WHERE REQUIRED FOR SHEAR
3 HOURS PER UL DESIGN NO. U435
WOOD STUD WALLS ON EITHERSIDE OF FIRE WALL
AIR
GAP
0' "
1"
AIR
GAP
0' "
1"
INTERIOR OR EXTERIOR FINISH AS REQUIRED
BATT INSULATION (OPTIONAL)
Other(options:(• NFPA(221(6.5.1(((
(
![Page 72: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/72.jpg)
Outline)
• MidQrise(Configurations(
• Design(Considerations(• Fire(Rated(Wall(Assemblies(
• Overview(• Exterior(Walls(• Fire(Walls(• Fire(Barriers(• Fire(Partitions(• Balconies(
![Page 73: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/73.jpg)
Fire)Barriers)–)IBC)707)
Supported(by(assembly(of(equal(or((greater(fire(resistance((with(exceptions(when(required((for(separating(incidental(use(areas(in(type(IIB,(IIIB(and(VB(construction)(Commonly(used(in:(• Shaft(enclosures(• Interior(exit(stairway(• Exit(stairway(enclosures(• Exit(passageways(• Incidental(uses((IBC(509)(• Occupancy(separations(• Creating(separate(fire(areas(
2012(IBC(Code(&(Commentary(
(
(
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Shaft)Walls)
Wood(Design(Focus:(Volume(22,(Issue(3(by(Smith(
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Elevator)Shaft)Wall)
Wood(Design(Focus:(Volume(22,(Issue(3(by(Smith(
![Page 76: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/76.jpg)
Interior)Exit)Stairway)Enclosures)
![Page 77: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/77.jpg)
Outline)
• MidQrise(Configurations(
• Design(Considerations(• Fire(Rated(Wall(Assemblies(
• Overview(• Exterior(Walls(• Fire(Walls(• Fire(Barriers(• Fire(Partitions(• Balconies(
![Page 78: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/78.jpg)
Outline)
• MidQrise(Configurations(
• Design(Considerations(• Fire(Rated(Wall(Assemblies(
• Overview(• Exterior(Walls(• Fire(Walls(• Fire(Barriers(• Fire(Partitions(• Balconies(
![Page 79: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/79.jpg)
Balconies)–)IBC)1406.3)
Balconies(of(combustible(construction(and(not(FRT(shall(be:(• Rated(in(accordance(w/(Table(601(for(floors(• Or(be(of(Type(IV((• And(shall(not(exceed(50%(of(bldg(perimeter(Exceptions(• Balconies(in(Type(III,(IV(and(V(can(be(of(type(V(const(
and(shall(not(have(fire(resistance(rating(if(sprinkler(protection(provided(
• Untreated(wood(is(permitted(for(rails(and(guardrails((
![Page 80: Detailing)Considerations) for)Multi2Story)Wood) Frame)Buildings](https://reader034.vdocuments.us/reader034/viewer/2022052318/586768041a28ab3b408b97ad/html5/thumbnails/80.jpg)
Balconies)–)IBC)1406.3)
So….(
For(Type(III(or(V(balcony(options(are:(
1. NonQcombustible(–(no(sprinklers/no(fire(rating(
2. FRT(–(no(fire(sprinklers/no(fire(rating(
3. Type(IV–(no(fire(sprinklers/no(fire(rating(
4. Non(treated(–(fire(sprinkler/no(fire(rating(
5. Non(treated(–(fire(rated(per(601(&(602/(no(sprinkler(
(
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Balconies)
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Questions?)
This(concludes(The(American(Institute(of(Architects(Continuing(Education(Systems(Course( Lisa)Podesto,)PE,)MS)
WoodWorks([email protected](