Vulcraft_Joist_Catal..
Vulcraft_Joist_Catal..
Vulcraft_Joist_Catal..
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ACCESSORIES AND DETAILS<br />
BRIDGING REQUIREMENTS FOR K-SERIES JOISTS<br />
Number of Rows of Bridging***<br />
Distances are Span Lengths<br />
(see "Definition of Span" on page 30.)<br />
ERECTION STABILITY SPANS<br />
Section (SJI Spec. Section 6)<br />
Numbers* Depth Span Less Than** 1 Row 2 Rows 3 Rows 4 Rows 5 Rows<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
8<br />
9<br />
8 17’<br />
10 21’<br />
12 23’<br />
14 27’<br />
16 29’<br />
12 25’<br />
14 29’<br />
16 30’<br />
18 31’<br />
20 32’<br />
14 29’<br />
16 32’<br />
18 32’<br />
20 34’<br />
22 34’<br />
24 36’<br />
12 25’<br />
16 32’<br />
18 33’<br />
20 34’<br />
22 35’<br />
24 38’<br />
26 38’<br />
14 29’<br />
16 33’<br />
18 35’<br />
20 36’<br />
22 36’<br />
24 39’<br />
26 39’<br />
28 40’<br />
16 33’<br />
18 37’<br />
20 39’<br />
22 40’<br />
24 43’<br />
26 43’<br />
28 43’<br />
30 44’<br />
24 43’<br />
26 44’<br />
28 44’<br />
30 45’<br />
16 33’<br />
18 37’<br />
20 39’<br />
22 40’<br />
24 44’<br />
26 44’<br />
28 45’<br />
30 45’<br />
Up thru 16’ Over 16’ Over 24’<br />
thru 24’ thru 28’<br />
Up thru 17’ Over 17’ thru 25’ Over25’thru32’<br />
Up thru 18’ Over 18’ Over 28’ Over 38’<br />
thru 28’ thru 38’ thru 40’<br />
Up thru 19’ Over 19’ Over 28’ Over 38’<br />
thru 28’ thru 38’ thru 48’<br />
Up thru 19’ Over 19’ Over 29’ Over 39’ Over 50’<br />
thru 29’ thru 39’ thru 50’ thru 52’<br />
Up thru 19’ Over 19’ Over 29’ Over 39’ Over 51’<br />
thru 29’ thru 39’ thru 51’ thru 56’<br />
Up thru 20’ Over 20’ Over 33’ Over 45’ Over 58’<br />
thru 33’ thru 45’ thru 58’ thru 60’<br />
Up thru 20’ Over 20’ Over 33’ Over 45’ Over 58’<br />
thru 33’ thru 45’ thru 58’ thru 60’<br />
Up thru 20’ Over 20’ Over 33’ Over 46’ Over 59’<br />
thru 33’ thru 46’ thru 59’ thru 60’<br />
10<br />
11<br />
12<br />
18 37’<br />
20 41’<br />
22 45’<br />
24 49’<br />
26 49’<br />
28 49’<br />
30 50’<br />
22 45’<br />
30 52’<br />
24 49’<br />
26 53’<br />
28 53’<br />
30 54’<br />
Up thru 20’ Over 20’ Over 37’ Over 51’<br />
thru 37’ thru 51’ thru 60’<br />
Up thru 20’ Over 20’ Over 38’ Over 53’<br />
thru 38’ thru 53’ thru 60’<br />
Up thru 20’ Over 20’ Over 39’ Over 53’<br />
thru 39’ thru 53’ thru 60’<br />
* Last digit(s) of joist designation.<br />
** For spans EQUAL TO OR EXCEEDING that shown above, one of the required rows, nearest mid-span, must be bolted diagonal type. Bolted diagonal<br />
bridging shall be installed and connected BEFORE releasing the hoisting lines. Refer to Specification Section 6 for handling and erection requirements.<br />
*** See SJI Specifications 5.11 for uplift requirement, page 29.<br />
35
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