Page 274 - ICC IEBC 2018

RESOURCE A

TABLE 2.5.3.1
STEEL COLUMNS—PLASTER ENCASEMENTS
MINIMUM DIMENSION 6″ TO LESS THAN 8″
ITEM MINIMUM PERFORMANCE REFERENCE NUMBER REC.
CODE DIMENSION CONSTRUCTION DETAILS LOAD TIME PRE-BMS-92 BMS-92 POST-BMS-92 NOTES HOURS
7 / ″ × 9 / ″ plaster protected steel columns;
1
1
2 2
1
C-7-SP-1 7 / ″ 8″ × 6″ × 35 lbs. “H” beam; Protection: 24 90 tons 57 min. 7 1 3 / 4
SWG wire metal lath;
2
1
1 / ″ lime plaster.
4
7 / ″× 10″ plaster protected steel columns;
7
8
8″ × 6″ × 35 lbs. “H” beam; Protection:
7
C-7-SP-2 7 / ″ 3 / ″ gypsum bal wire wound with 16 SWG wire 90 tons 1 hr. 7 1 1
8 8 13 min.
helically wound at 4″ pitch;
1 / ″ gypsum plaster.
2
7 / ″× 9 / ″ plaster protected steel columns;
3
1
4
8
8″ × 6″ × 35 lbs. “H” beam; Protection:
1
C-7-SP-3 7 / ″ 3 / ″ gypsum board; wire helically wound 90 tons 1 hr. 7 1 1
4 8 14 min.
16 SWG at 4″ pitch;
1 / ″ gypsum plaster finish.
4
Notes:
1. Failure mode—collapse.
TABLE 2.5.3.2
STEEL COLUMNS—PLASTER ENCASEMENTS
MINIMUM DIMENSION 8″ TO LESS THAN 10″
ITEM MINIMUM PERFORMANCE REFERENCE NUMBER REC.
CODE DIMENSION CONSTRUCTION DETAILS LOAD TIME PRE-BMS-92 BMS-92 POST-BMS-92 NOTES HOURS
8″ × 10″ plaster protected steel columns;
1
C-8-SP-1 8″ 8″ × 6″ × 35 lbs. “H” beam; Protection: 86 tons 1 hr. 7 1 1 /
23 min. 4
24 SWG wire lath; 1″ gypsum plaster.
8 / ″ × 10 / ″ plaster protected steel columns;
1
1
2
2
1
1
C-8-SP-2 8 / ″ 8″ × 6″ × 35 lbs. “H” beam; Protection: 24 90 tons 1 hr. 7 1 1 /
2 36 min. 2
1
SWG metal lath wrap; 1 / ″ gypsum plaster.
4
9″ × 11″ plaster protected steel columns;
8″ × 6″ × 35 lbs. “H” beam; Protection:
1
1
C-9-SP-3 9″ 24 SWG metal lath wrap; / ″ M.S. ties at 12″ 90 tons 1 hr. 7 1 1 / 2
8
1
pitch wire netting 1 / ″ × 22 SWG between first 33 min.
2
1
and second plaster coats; 1 / ″ gypsum plaster.
2
8 / ″× 10 / ″ plaster protected steel columns;
3
3
4
4
3
3
4
C-8-SP-4 8 / ″ 8″ × 6″ × 35 lbs. “H” beam; Protection: / ″ gyp- 90 tons 2 hrs. 7 2, 3, 4 2
4 sum board; wire wound spirally (#16 SWG) at
1
1
1 / ″ pitch; / ″ gypsum plaster.
2
2
For SI: 1 inch = 25.4 mm, 1 pound = 0.004448 kN, 1 ton = 8.896 kN.
Notes:
1. Failure mode—collapse.
2. Passed 2 hour fire exposure test (Grade “C” - British).
3. Passed hose stream test.
TABLE 2.5.4.1
STEEL COLUMNS—MISCELLANEOUS ENCASEMENTS
MINIMUM DIMENSION 6″ TO LESS THAN 8″
ITEM MINIMUM PERFORMANCE REFERENCE NUMBER REC.
CODE DIMENSION CONSTRUCTION DETAILS LOAD TIME PRE-BMS-92 BMS-92 POST-BMS-92 NOTES HOURS
5
1
7 / ″ × 9 / ″ (asbestos plaster) protected steel
8
2
columns; 8″ × 6″ × 35 lbs. “H” beam; 1 hr.
5
3
C-7-SM-1 7 / ″ 90 tons 7 1 1 /
1
9
8 Protection: 20 gage / ″ metal lath; / ″ asbestos 52 min. 4
2
16
plaster (minimum).
For SI: 1 inch = 25.4 mm, 1 pound = 0.004448 kN, 1 ton = 8.896 kN.
Notes:
1. Failure mode—collapse.
2018 INTERNATIONAL EXISTING BUILDING CODE ® 255
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