Civil Engineering Reference
In-Depth Information
Figure 18.32 Plan on welded corner junction of 200 × 200
SHS, expensive mitred corner detail avoided avoiding problems
connecting the 2-bolt post connection from below
Figure 18.30 Aesthetic detailing, stiffeners set back, column head
detail accommodates restraint tie in an industrial building
Figure 18.33 Near perfect splice fit achieved because the same
piece of SHS has been used for both sides of the splice; note
longitudinal seam in this section, good for accuracy but might
compromise aesthetics if exposed
When joining open sections, if possible select beam widths less than
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the column flange widths while avoiding use of the infrequently
rolled narrow sections. When joining beams to column webs select
beam widths less than the distance between the root radii.
With tube work remember there are limits on the lengths available.
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The fact that they are relatively infrequently rolled could require
sections to be supplied by a stockholder so waste could be high.
If cold formed hollow sections are used, while the surface will be
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smoother and section dimensional tolerance better than hot rolled,
there is a longitudinal welded seam that may not be aesthetically
acceptable.
When using hollow sections in trusses try to avoid the special pro-
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Figure 18.31
Uncontrolled fabrication marks in finished steelwork
file cuts needed at the junctions of three or more members. Mix
