General Information
Figure 1 shows a covered sports tribune.
![Covered sports tribune](buildings/sport-buildings/structure-6/1-covered-tribune.jpg)
The steel roof structure consists of braced overhanging beams, tie beams, purlins, and metal roofing sheets. The braced overhang l ≅ 13 m, and the spacing ≅ 4 m.
Structural Behavior
Figure 2 shows the covered tribune.
![Side view of a covered sports tribune](buildings/sport-buildings/structure-6/2-covered-tribune.jpg)
The suspender is marked by the letter S, and the two white triangles mark the pinned support positions of the steel roof structure. Suppose a suspender arrangement between the actual position and the red line.
What are some possible reasons for placing the suspender near the free-end region?
Figure 3 shows the covered tribune.
![Covered sports tribune with braced overhanging beams](buildings/sport-buildings/structure-6/3-covered-tribune.jpg)
The back diagonal is marked by the letter D. Suppose a back diagonal arrangement between the actual position and the red line (vertical arrangement).
Would placing the back diagonal in a vertical position (external foundation required) be more efficient than connecting the diagonal to the RC structure?
Alternative Variant
A schematic three-dimensional view of the used variant and a variant with a tapered overhanging beam without the suspender brace unit are shown in figure 4.
![Three-dimensional views of of two covered sports tribune](buildings/sport-buildings/structure-6/4-variants.jpg)