General Information

Figure 1 shows a steel canopy roof.

Trapezoidal Corrugated Web Beams

Figure 2 shows a structure sector.

The steel structure consists mainly of columns, tie beams (between the columns), trapezoidal corrugated web beams (TCWB) with a slightly tapered free end region (t), purlins, purlin braces, fly braces, and metal roofing sheets with a bullnose front edge. The columns are made of H-sections, the tie beams are made of rectangular hollow sections, the purlins and their braces are made of C-channels, and the fly braces are made of circular hollow sections with flattened ends. The cantilever arm a ≅ 5.5 m, the TCWB depth d ≅ 0.5 m, and the spacing s ≅ 12 m. Figure 3 shows a canopy roof sector.

Figure 4 shows a schematic three-dimensional view of ten steel sections and a two-dimensional structural model.

The sections are of type castellated with hexagonal openings, TCWB, U, H, I, tapered, circular hollow, rectangular hollow, square hollow, and a lipped channel. The structural model consists of an unbraced cantilever beam with five forces (F) placed at a constant spacing (s).

Connection Between TCWB and Column

Figure 5 shows the connection between the TCWB and the column.

The connection consists of an end plate (approximately the same thickness as the column's flange) and eight bolts/nuts (4 x 2). The first web sector (w) is flat and terminated with a web stiffener; a fly brace pair is installed in proximity to the column.