CodeChronicle

OBC 2006 Division B

9.23.4.3.

Version 1 — in force 1 January 2010

In force · amended
Verified · covered Verified against the 2010-01-01–2010-03-31 consolidation, whose range covers the query date. How to read this

Provenance

OBC 1997 · continues from 9.23.4.3. — Pro

Base · O. Reg. 350/06 · ext v0 →

O. Reg. 503/09, cl. 210(2) · ext ← current

In force 2010-01-01

OBC 2012 · continues as 9.23.4.3. — Pro

9.23.4.3. — Steel Beams

Comparing versions

Changed text stands out · unchanged is dimmed

v0 base

Earlier · 2006-12-31

(1) The spans for steel beams with laterally supported top flanges shall conform to Table 9.23.4.3. for floors and Tables A-20 to A-29 for roofs and floors.

(2) Beams described in Sentence (1) shall at least meet the requirements for Grade 350 W steel in CAN/CSA-G40.21, “Structural Quality Steel”.

(3) A beam may be considered to be laterally supported if,

(a) the wood joists bear on its top flange at intervals of 600 mm or less over its entire length,

(b) the load being applied to this beam is transmitted through the joists, and

(c) 19 mm by 38 mm wood strips in contact with the top flange are nailed on both sides of the beam to the bottom of the joist supported.

v1 O. Reg. 503/09

Later · viewing · 2010-01-01

(1) The spans for steel beams with laterally supported top flanges shall conform to Table 9.23.4.3. for floors and Tables A-20 to A-29 for roofs and floors.

(2) Beams described in Sentence (1) shall at least meet the requirements for Grade 350 W steel in CAN/CSA-G40.21, “Structural Quality Steel”.

(3) A beam may be considered to be laterally supported if,

(a) the wood joists bear on its top flange at intervals of 600 mm or less over its entire length,

(b) the load being applied to this beam is transmitted through the joists, and

(c) 19 mm by 38 mm wood strips in contact with the top flange are nailed on both sides of the beam to the bottom of the joist supported.