Mid-Rise Construction Presented on October 22, 2014 by Tim Smith of - - PowerPoint PPT Presentation

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Mid-Rise Construction Presented on October 22, 2014 by Tim Smith of - - PowerPoint PPT Presentation

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Understanding the Design Requirements for 5-story and Higher Wood Frame Constructions Mid-Rise Construction Presented on October 22, 2014 by Tim Smith of Togawa Smith Martin, Inc. Disclaimer: This presentation was developed by a third party and

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Understanding the Design Requirements for 5-story and Higher Wood Frame Constructions

Mid-Rise Construction

Presented on October 22, 2014 by Tim Smith of Togawa Smith Martin, Inc. Disclaimer: This presentation was developed by a third party and is not funded by WoodWorks or the Softwood Lumber Board.

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The Wood Products Councilis 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 non-AIA 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.

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Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.

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Course Description

This course will try to unravel the mystery of how to design 5-story wood frame residential buildings and 6-story mixed-use projects. It will discuss the Building Code requirements, along with its height and area limitations. The course will also discuss some of the technical challenges of building tall wood frame buildings, including designing for wind and seismic forces; how to control shrinkage; and enhanced fire protection requirements.

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Learning Objectives

  • 1. #The#par*cipants#will#understand#the#Building#Code#

requirements#for#designing#a#5<story#and#higher#wood##frame# mul*<family#project# 2.#The#par*cipants#will#understand#the#Building#Code# requirements#for#designing#a#6<story#project#with#the#top#5# floors#and#higher#wood#framing#over#a#concrete#podium# 3.#The#par*cipants#will#understand#height#and#area#limita*ons#

  • f#designing#5<story#wood#frame#mul*<family#buildings#

4.#The#par*cipants#will#understand#the#construc*on#challenges#

  • f#building#5#stories#of#wood#framing,#including#shrinkage,#and#

fire#protec*on#

# #

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“The$Wood$Products$Council”#is#a#Registered#Provider#with#The$American$Ins6tute$of$ Architects$Con6nuing$Educa6on$Systems$(AIA/CES).##Credit(s)#earned#on#comple;on#of#this# program#will#be#reported#to#AIA/CES#for#AIA#members.##Cer;ficates#of#Comple;on#for#both#AIA# members#and#nonAAIA#members#are#available#upon#request.# # This#program#is#registered#with#AIA/CES#for#con;nuing#professional#educa;on.##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#construc;on#or#any#method#or#manner#of#handling,#using,# distribu;ng,#or#dealing#in#any#material#or#product.### # Ques;ons#related#to#specific#materials,#methods,#and#services#will#be#addressed#at#the# conclusion#of#this#presenta;on.

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What%is%wood%mid,rise%construc2on?%

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Casa%Heiwa%

Los#Angeles,#CA# ! First#5#story#wood#frame#building#in#California.#

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Code%changes%in%1989%and%2009.%

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1989%–%UBC% Basic%code%height%–%Table%5B% % % Type%IIIA% 2009%–%IBC% Basic%code%height%–%Table%503% % %

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1989%–%UBC% Basic%code%height%–%Table%5B% Sprinkler%increase%–%Sec2on%506% % % Type%IIIA% 2009%–%IBC% Basic%code%height%–%Table%503% Sprinkler%increase%–%Sec2on%504% % % Add%1%Floor% Increase%Height%20%feet%

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1989%–%UBC% Basic%code%height%–%Table%5B% Sprinkler%increase%–%Sec2on%506% Mezzanine%–%Sec2on%507% % Type%IIIA% 2009%–%IBC% Basic%code%height%–%Table%503% Sprinkler%increase%–%Sec2on%504% Mezzanine%–%Sec2on%505% % % Add%Level%1/3%of%Floor%Below%% &%Not%Defined%as%a%Floor%

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1989%–%UBC% Basic%code%height%–%Table%5B% Sprinkler%increase%–%Sec2on%506% Mezzanine%–%Sec2on%507% Podium%–%Sec2on%311.2.2.1% % Type%IIIA% 2009%–%IBC% Basic%code%height%–%Table%503% Sprinkler%increase%–%Sec2on%504% Mezzanine%–%Sec2on%505% Podium%–%Sec2on%509.2% % % Separate%Buildings%for%Area%&%Stories%% Podium%is%Only%1%Story% Podium%Type%I%Construc2on% 3%Hour%Separa2on%between%Podium%&%Type%III%Above

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1989%–%UBC% Basic%code%height%–%Table%5B% Sprinkler%increase%–%Sec2on%506% Mezzanine%–%Sec2on%507% Podium%–%Sec2on%311.2.2.1% Height%defini2on%–%Sec2on%208% % Type%III%A% 2009%–%IBC% Basic%code%height%–%Table%503% Sprinkler%increase%–%Sec2on%504% Mezzanine%–%Sec2on%505% Podium%–%Sec2on%509.2% Grade%plane%defini2on%–%Sec2on%502% %

Below%

Add%Another%Level%with%Daylight%Basement%

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Fire%Department%Access%is%75%feet%to%Floor%Level%

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Case%Studies%

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Union%Sta2on%

Union#City,#CA# ! 5#story#wrap#vs.#4#story#podium.#

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“TOD”%=%Transit%Oriented%Development%

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! 5#story#over# subterranean# garage.# 5#Story#Wrap# 4#Story#Podium#

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##################################################5#stories#of#Residen;al##############################Concrete#Free#Standing#Garage#

5%Story%Wrap,%60,80%Units/Acre,%Less%Expensive%to%Build

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4#Stories#of# Residen;al# Podium#Level#

4%Story%Podium,%60,80%Units/Acre,%More%Expensive%to%Build

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The%Elements%&%Metropolis%

Irvine,#CA#

%

! 6#and#7#Story#Wraps.#

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La%Boheme%

San#Diego,#CA# ! 5#story#over#subterranean#garage.#

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5%Story%Over%Parking,%100,120%Units/Acre

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######################Mezzanine#

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Americana%at%Brand%

Glendale,#CA# ! 5#story#over#retail#podium.#(6#levels)#

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5%Story%Over%Retail,%100,120%Units/Acre

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Urban%“European”%Planning

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5%Stories%Type%III

3#Hour# Separa;on# Type#I## Construc;on#

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# ! Sloping#sites#for#seven#levels#

Union%Square%

San#Diego,#CA#

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##############################################Mezzanine:#75#feet#High# 5#Stories## Type#III# Type#I## Podium#

7%Levels%of%Residen2al,%120,140%Units/Acre

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########################################Mezzanine#Level#

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Esprit%

Marina#Del#Rey,#CA# ! 5#story#over#1½#levels#of#podium#parking. !

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########################################################################################4#Story#Buildings# 5#Story# Buildings# Every#Unit#has# View#of#Water#

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5#Stories## Type#III# 1#½#Levels#of# Podium#Out# Of#Grade#

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Density%Summary%

%5%story%wrap%&%4%story%podium% % % % %60,80%units/acre% %6%story%wrap % % % % %90%units/acre% %7%story%wrap % % % % %105%units/acre% %5%story%with%subterranean%parking % % %100,120%units/acre% %5%story%with%retail%podium % % % %100,120%units/acre% %5%story%+%residen2al%podium % % % %120,140%units/acre% %5%story%with%mezzanine%+%residen2al%podium % %125,145%units/acre% %5%story%with%mezzanine%+%double%residen2al%podium % %145,165%units/acre
 "

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Building%Code%Requirements%

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Type V and III Construction

Type%V,A%

(Type%V,1%hour)% %

Type%III,A%

(Type%III,1%hour)%

%

Type%of%construc2on%in%which%the%structural%elements,%exterior%walls%and% interior%walls%are%of%any%materials%permihed%by%CBC.% Structural#Frame# # #1#Hr# Exterior%Bearing%Walls # #1%Hr% Exterior#NonABearing # #Depends#of#distance#to#PL Interior#Bearing#Walls # #1#Hr# Interior#NonABearing # #0# Floor#Construc;on # #1#Hr# Roof#Construc;on # #1#Hr# Shabs # # #2#Hr#when#4#stories#or#more# Fire%Walls # # #2%Hr%

%

Type%of%construc2on%in%which%the%exterior%walls%are%of%% non,combus2ble%materials%and%the%interior%building%% elements%are%of%any%materials%permihed%by%CBC.# Structural#Frame# # #1#Hr# Exterior%Bearing%Walls # #2%Hr% Exterior#NonABearing # #Depends#of#distance#to#PL Interior#Bearing#Walls # #1#Hr# Interior#NonABearing # #0# Floor#Construc;on # #1#Hr# Roof#Construc;on # #1#Hr# Shabs # # #2#Hr#when#4#stories#or#more# Fire%Walls # # #3%Hr% Fire,retardant%wood% framing%complying% with%Sec2on%2303.2% shall%be%permihed% within%exterior%wall% assemblies%of%a%2, hour%ra2ng%or%less.*% # *%All%hardware%to%be% galvanized%or%hot% dipped.%

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Fire Protection

Other Alternatives: " Frame to demising walls rather than exterior walls. " At last exterior walls frame to beams/columns.

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Firewall

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Technical%Requirements%

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Zone of Shrinkage

Shrinkage

  • ccurs

primarily in horizontal members such as wall plates and floor joists

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Hang Joist Floor Joist No Scale A B C

Detail 1 - Type III Framing

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Floor System Selection to Minimize Shrinkage

Structural Composite and I-Joist floor systems are dimensionally stable and offer reduced inter-floor shrinkage while utilizing traditional wall framing methods.

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No Scale

Detail 4 - Type III Semi-balloon Framing

Open web trusses 2-hr wall Assembly A 1-hr. Assembly FRTW typ. Open web trusses 2-hr wall Assembly

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Exterior%Plywood%Shear%Walls

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Double#Side# Shear#Walls#

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The%Rods%&%Compression%Studs%at%Shear%Panels

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Separate%Shear%Walls%&%Plumbing%Walls

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Waterproofing

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Ahen2on%to%Detail

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Extra%Management%Services

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Where%are%we%headed?%

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QUESTIONS?

This concludes The American Institute of Architects Continuing Education Systems Course Tim Smith Togawa Smith Martin, Inc. tsmith@tsminc.com