Presented by:Presented by:

Ara Sargsyan, PE, CBO, LEED APAra Sargsyan, PE, CBO, LEED AP

Oakland, CA. January 29, 2013Oakland, CA. January 29, 2013

Allowable Building Height and Allowable Building Height and Area Calculations Using Area Calculations Using Software ApplicationsSoftware Applications

“The Wood Products Council” is a Registered Provider with The�American�Institute�of�Architects�Continuing�Education�Systems�(AIA/CES). Credit(s) earned on completion of this program 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 program 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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distribution, display and use of the presentation without written permission of the speaker is

prohibited.

© The Wood Products Council 2012

Disclaimer

The training materials and opinions presented at this workshop do not constitute official views of the author's employer and should not be used as such. Anyone who wants an official ruling by the Building Official should contact the local Building Department.

IBC is © by International Code Council

Learning�Objectives

•Learn how to save time in calculating grade plane for any topography.•Understand how to optimize design values for all occupancy groups and types of construction using a single application.•Evaluate methods for calculating front increases in a manner that will save time on building design and plan review. •Explain how to calculate allowable floor area, number of stories and height for a mid-rise building.

This�Session�Presents:This�Session�Presents:

•• Software�application�that�checks�and�Software�application�that�checks�and�analyses�Building�Height�and�Area�in�analyses�Building�Height�and�Area�in�compliance�with�the�2007/2010�CBC�compliance�with�the�2007/2010�CBC�

•• The�purpose�and�configuration�of�the�The�purpose�and�configuration�of�the�software�applicationsoftware�application

•• Examples�of�mixed�use,�multi�story�building��Examples�of�mixed�use,�multi�story�building��Height�and�Area�analysisHeight�and�Area�analysis

2007/2010�CBC�Building�Height�&�Area�Calculator

CHA�Ͳ CHA

2007/2010�CBC�Building�Height�&�Area�Calculator

2007/2010�CBC�Building�Height�&�Area�Calculator

What�does�ChaWhat�does�ChaͲͲCha�do?Cha�do?

•• Checks�and�analyses�Building�Height�and�Area�in�Checks�and�analyses�Building�Height�and�Area�in�compliance�with�the�2007�&�2010�CBC�for�compliance�with�the�2007�&�2010�CBC�for�buildings�up�to�6�stories,�with�up�to�4�occupancy�buildings�up�to�6�stories,�with�up�to�4�occupancy�groups�at�each�level.�groups�at�each�level.�

•• Optimizes�design�values�for�all�occupancy�Optimizes�design�values�for�all�occupancy�groups�and�types�of�construction�using�single�groups�and�types�of�construction�using�single�application�application�

•• Calculates�Frontage�increase�(Calculates�Frontage�increase�(I I ff))

•• Calculates�Grade�plane�elevation�for�any�Calculates�Grade�plane�elevation�for�any�topographytopography

•• Select�proposed�Type�of�constructionSelect�proposed�Type�of�construction–– ChaChaͲͲCha�will�show�max.�permitted�height�for�the�Cha�will�show�max.�permitted�height�for�the�building�without�sprinklers�per�Table�503building�without�sprinklers�per�Table�503

•• Input�proposed�Building�Height�(ft)�Input�proposed�Building�Height�(ft)�•• Input�proposed�number�of�stories�(6�max)�Input�proposed�number�of�stories�(6�max)�•• If�applicable,�check�the�box�for�sprinklers�If�applicable,�check�the�box�for�sprinklers�throughout�per�903.3.1.1throughout�per�903.3.1.1

–– No�substitution�for�1No�substitution�for�1ͲͲhr�construction�hr�construction�

•• If�applicable,�input�(If�applicable,�input�(I I ff)�value)�value•• Select�Occupancy�Groups�(4�per�level)Select�Occupancy�Groups�(4�per�level)•• Input�corresponding�areas�(sq.�ft.)Input�corresponding�areas�(sq.�ft.)

The�ChaThe�ChaͲͲCha�stepsCha�steps

ChaChaͲͲCha�will�check:Cha�will�check:

Allowable�height,�number�of�stories�Allowable�height,�number�of�stories�and�the�area�forand�the�area�for::•• Each�Occupancy�group�at�each�floorEach�Occupancy�group�at�each�floor

•• Each�floorEach�floor

•• Each�Occupancy�group�throughout�Entire�Each�Occupancy�group�throughout�Entire�buildingbuilding

•• Overall�buildingOverall�building

Abbreviations�used�in�ChaAbbreviations�used�in�ChaͲͲChaCha

•• CHA�CHA�ͲͲCheck�Height�and�AreaCheck�Height�and�Area

•• NP�NP�ͲͲNot�PermittedNot�Permitted

•• OL�OL�ͲͲOver�Permitted�LimitOver�Permitted�Limit

•• SPA�SPA�ͲͲSprinklers�used�for�Area�increaseSprinklers�used�for�Area�increase

•• SPH�SPH�ͲͲSprinklers�used�for�Height�increaseSprinklers�used�for�Height�increase

•• SPS�SPS�ͲͲSprinklers�used�for�Story�increaseSprinklers�used�for�Story�increase

•• UL�UL�ͲͲUnlimitedUnlimited

Code�Sections�not�covered�by�ChaCode�Sections�not�covered�by�ChaͲͲChaCha

•• 503.1.1�(Special�industrial�occupancies)�503.1.1�(Special�industrial�occupancies)�

•• Footnotes�b,�c,�d,�and�e�of�Table�503�Footnotes�b,�c,�d,�and�e�of�Table�503�

•• 504.3�(Roof�structures)�504.3�(Roof�structures)�

•• 505�(Mezzanines)�505�(Mezzanines)�

•• 506.1.1�(Basements�506.1.1�(Basements�–– 2007�CBC�only)�2007�CBC�only)�

•• 507�(Unlimited�Area�Buildings)507�(Unlimited�Area�Buildings)–– for�Frontage�increase�(If),�Chafor�Frontage�increase�(If),�ChaͲͲCha�considers�the�Cha�considers�the�Exception�under�Sec.�506.2.1)Exception�under�Sec.�506.2.1)

•• 509�(Special�provisions)�509�(Special�provisions)�

Assumptions�taken�by�ChaAssumptions�taken�by�ChaͲͲChaCha

•• Sec.�504.2�Exceptions:�Fire�area�with�specific�Sec.�504.2�Exceptions:�Fire�area�with�specific�occupancy�group�is�assumed�to�be�the�entire�occupancy�group�is�assumed�to�be�the�entire�floor�that�accommodates�the�occupancy�floor�that�accommodates�the�occupancy�group.(2007�CBC�only)group.(2007�CBC�only)

•• Sec.�508:�All�mixed�occupancies�are�assumed�Sec.�508:�All�mixed�occupancies�are�assumed�separated�(508.3.3).�For�non�separated�separated�(508.3.3).�For�non�separated�occupancies�use�the�most�restrictive�allowances�occupancies�use�the�most�restrictive�allowances�(508.3.2.2)(508.3.2.2)

1616

Determining the Grade PlaneDetermining the Grade PlaneGrade Plane Elevation (GPE)Grade Plane Elevation (GPE)

1717

1818South Ave (60')

Wes

t St

(60'

)

120'

New Building

60'

60'50' 30

'

20'

10'

70'

20'

10' 40'

30'

10'

30'

10'

60'

20'20' 40'

Existing Building

P.L.

P.L.

P.L.

P.L.

NN

1111

11 22

1414

55

44

33

1010

66

99

7788

12121313

Building�Height�&�Area�CalculatorͲ Example

IIff = 0.35= 0.35

W= 30 ftP= 1,000 ftF= 600 ft

IIff = [F/P = [F/P –– 0.25]W/300.25]W/30

Footprint= 35,000 sq.ft

Building�Height�&�Area�CalculatorͲ Example

53,000 1

2

B

3

4

53,000

46,000

49,000

17,490

17,490

84,000

16,170

13,800

Sec. 505.1 Sec. 505.1

Sec. 506.4 Exp Sec. 506.4 Exp

349,950�sq.�ft.

Other�Software�ApplicationsOther�Software�Applications……

•• ChaChaͲͲCha�for�2006,�2009�&�2012�IBCCha�for�2006,�2009�&�2012�IBC

•• Plumbing�Fixtures�Calculators�for:Plumbing�Fixtures�Calculators�for:–– 2007�&�2010�CBC/CPC2007�&�2010�CBC/CPC

–– 2006�&�2009�IBC/IPC2006�&�2009�IBC/IPC

–– 2007�FBC2007�FBCͲͲ Plumbing�(Florida)Plumbing�(Florida)

•• Sound�Transmission�Class�(STC)Sound�Transmission�Class�(STC)

•• etcetc……

Questions?

This�concludes�The�American�Institute�of�Architects�Continuing�Education�Systems�Course

Ara�Sargsyan,�PE,�CBO,�LEED�AP

www.ara4help.com

ara@ara4help.com