TECHNOLOGICAL INNOVATION Structure and Technology Since load-bearing columns are incompatible with the activities that take place inside a stadium, the structural design of a stadium roof typically involves long-span steel trusses that must work extremely hard to support the roof’s weight and withstand the lateral loads. Oversizing roof truss
Case Example- Al Janoub Stadium
Inferences:
Architects: Zaha Hadid Architects Client: Al Wakrah Sports Club Year: 2019 Location: Al Wakrah, Qatar Capacity: 20,000 pax
1. Steel has allowed to obtain the fluidic form, by providing a structural framework.
Passive design principles along with computer modeling and wind tunnel tests were used to maximise the effectiveness of the physical enclosure to ensure player and spectator comfort. 16
members has two consequences: it increases the truss’ self-weight, which necessitates the use of extra steel to support it. These massive trusses are often extremely visible from both outside and within the stadium, and they contribute significantly to the stadium’s beauty.
2. Numerous struts are provided between the steel sections so that it retains its shape and form. 3. The periphery of steel formwork, which dictates the overall form of the structure is braced via secondary and tertiary steel sections,
As a result, it’s critical to have control and flexibility in the roof structure’s design, which parametric modeling may provide (Shepherd, 2015).
which further reduce the tensile load on the periphery trusses and help in smoother transfer of load. 4. Tensile load is maximum near the center of east and west cantilevered truss. 5. If concrete would have been used to achieve these large spans, then it would have been highly inefficient, as it has high compressive strength but low tensile strength.
