arch3502: j.burns -- work+progress

Code Analysis
For Design Development Phase

Applicable Building Code: (2006) IBC or CBC
Applicable Zoning Code: County Ordinance Code

Project: Hot House
Location: "81 White St. New York, NY"

A. Occupancy Classification
"(CBC Ch. 3 and CBC Table 1004.1.1, Table 1015.1 & Table 1019.1)"

1 Occupancy Type: M
   R-2
   U
"(CBC Ch. 3; for mixed occupancy, see CBC Sec 302)"

separate or Accessory Occupancy: x-x
accessory? (CBC Sec 504.3.2)

2 Building Floor Area: 11240
Group M: 1000
Group R-2: 6912
Group U: 3328
(CBC Sec. 506.3)

3 Occupant Load: 70
(CBC Table 1004.1.1)

4 Occupancy Separation:
(CBC Table 508.3.3) for buildings equiped throughout w/an automatic sprinkler system
installed in accordance with section 903.3.1.1

5 Spaces with One Means of Egress:
Group M:    49 max occupant load
Group R-2: 10 max occupant load
Group U:    49 max occupant load
(CBC Table 1015.1)

6 Exit Access Travel Distance:
Group M:    250 ft w/sprinkler system
Group R-2: 250 ft w/ sprinkler system
Group U    400 ft w/ sprinkler system
(CBC Table 1016.1)

7 Minimum No. of Exits per Occupant Load:
1-500    2 per story
"501-1,000" 3 per tory
(CBC Table 1019.1)

B. Type of Construction: type IIA
(CBC Ch. 6) Add story with fire sprinklers & increase height by 20 ft.
(CBC SEC 504.2)

C. Location on Property / Fire Resistance Ratings
"(CBC Sec 503.1.2, Sec 602.1, Sec 705.8, Sec 506.2 and Table 601)"

1 Structural Frame: x Hr
(CBC Table 601)

2 Bearing Walls - Exterior: "x Hr, Non-combustible" Substitution shall not waive or reduce the required fire-resistive construction
( CBC Sec 602.3 and Table 601)

3 Bearing Walls - Interior: x Hr
( CBC Sec 602.3 and Table 601)

4 Nonbearing Walls - Ext: x<5' 1 Hr
and Partitions - Ext. 5'<x<10' 1 Hr
(CBC Table 602) 10'<x<30' 1 Hr
30'<x 0 Hr

5 Nonbearing Walls - Int: x hr
and Partitions - Int.
(CBC Table 601)

6 Floors and Floor-ceilings: x Hr
(CBC Table 601)

7 Roofs and Roof-ceiling: x Hr
(CBC Table 601)

8 Openings: 70% - Unprotected
A/a + Au/au <= 1.0 No Limit - Protected
(CBC Table 704.8) For fire separation distance greater than 25' to 30'

9 Shaft Enclosures: x Hr
(CBC Sec. 707) Connecting less than four stories including basement

10 Ext. Doors and Windows:
(CBC Sec. 715)

11 Stairway Construction:
(CBC Sec. 1020.1) dependent on number of stories connected

D. Allowable Floor Area
(CBC Ch. 5 and Table 5-B)

Based on Construction Type IIA
Group M:
1 Basic Allowable Height: 65' / 4 Stories
(Bldg height / # of stories)

2 Basic Allowable Flr Area: "21,050 SF"
(CBC Table 503)

3 Yard Separation Increase: "Separation on all Sides; 18,000 SF X 2 = 36,000 SF"
(CBC Sec 505.1) "(40' x .05 = 100% increase, but not to exceed 100%"

4 Multi-story Increase: "36,000 SF X 2 = 72,000 Sf"
(CBC Sec 504.2)

Group R-2:
1 Basic Allowable Height: 65' / 4 Stories
(Bldg height / # of stories)

2 Basic Allowable Flr Area: "24,000 SF"
(CBC Table 503)

3 Yard Separation Increase: "Separation on all Sides; 13,500 SF X 2 = 27,000 SF"
(CBC Sec 505.1) "(40' x .05 = 100% increase, but not to exceed 100%"

4 Multi-story Increase: "27,000 SF X 2 = 54,000 SF"
(CBC Sec 504.2)

Group U:
1 Basic Allowable Height: 65' / 5 Stories
(Bldg height / # of stories)

2 Basic Allowable Flr Area: "35,500 SF"
(CBC Table 503)

3 Yard Separation Increase: "Separation on all Sides; 13,500 SF X 2 = 27,000 SF"
(CBC Sec 505.1) "(40' x .05 = 100% increase, but not to exceed 100%"

4 Multi-story Increase: "27,000 SF X 2 = 54,000 SF"
(CBC Sec 504.2)

E. Actual Floor Area:

Occupancy Type: M

Floor Level: ASF
Basement 0 "< 21,050 SF"
First Floor 500 "< 21,050 SF"
Second Floor 500 "<21,050 SF"
Third Floor 0 "< 21,050 SF"
Fourth Floor 0 "< 21,050 SF"
Fifth Floor 0 "< 21,050 SF"
Sixth Floor 0 "< 21,050 SF"
Total Actual Floor Area "1,000" "< 21,050 SF"

Occupancy Type: R-2

Floor Level: ASF
Basement 0 "< 24,000 SF"
First Floor 0 "< 24,000 SF"
Second Floor 0 "< 24,000 SF"
Third Floor 1728 "< 24,000 SF"
Fourth Floor 1728 "< 24,000 SF"
Fifth Floor 1728 "< 24,000 SF"
Sixth Floor 1728 "< 24,000 SF"
Total Actual Floor Area 6912 "< 24,000 SF"

F. Occupancy Type: U
   ASF
Floor Level:
Basement    0 "< 35,500 SF"
First Floor 0 "< 35,500 SF"
Second Floor 0 "< 35,500 SF"
Third Floor 832 "< 35,500 SF"
Fourth Floor 832 "< 35,500 SF"
Fifth Floor 832 "< 35,500 SF"
Sixth Floor 832 "< 35,500 SF"
Total Actual Floor Area 3328 "< 35,500 SF"

Allowable Floor Area of Mixed Occupancies:
(See Sec 504.3)

Actual Floor Area / Allowable Floor Area + Actual Floor Area / Allowable Floor Area < 1.0

M 1,000 0.0475 .0485 + .288 + .0937 = .4292 < 1.0
21,050

R-2 6,912 0.288
24,000

U 3,328 0.0937
35,500