| 摘要 |
<p>A bar and bracket assembly for a roof or wall construction, wherein the bar (11) is in the form of a re-entrant channel-section having integral flanges (15, 16) extending inwardly from each side wall (13, 14) of the channel, and the or each bracket (21) has cut-outs (29) in its opposite edges respectively to receive said flanges (15, 16), the assembly being characterised in that said flanges (15, 16) are bent, adjacent their inner edges, to define integral webs (17, 18) extending generally parallel to one another in a direction away from the base wall (12) of the channel, said cut-outs (29) in the or each bracket (21) being dimensioned to accommodate said webs (17, 18). <IMAGE></p> |
