Stadia & Arenas, Stadium

Athletic Stadium Budapest

© sbp/Andras Kovacs

The athletics stadium in Budapest was built for the IAAF World Championships in 2023. The aim of the new construction was to make the stadium a permanent athletics venue for Budapest. For the World Championships, the stadium offers 40,000 seats. Of these, 25,000 are in a temporary upper tier that will be dismantled after the event. However, the roof was to be retained, and the podium supporting the temporary stand was to be converted into a covered public space after dismantling.
The roof consists of a load-bearing structure based on the spoke wheel principle of compression and tension rings. The pre-stressed cable net between the tension and compression rings consists of upper and lower radial cables, which are formed into a convex shape by struts. On the inside, the radial cables are connected to the tension rings via welded ring cable nodes. As a special feature, the system line of the lower radial cable crosses that of the upper one near the compression rings, where it also fans out in a V-shape. A welded node detail was developed for this purpose, from which the two fanned-out radial cables run to the upper compression ring. In addition, a compression strut connects the crossing node with the lower compression ring.
The two outer compression rings are arranged in an inclined plane and connected by diagonals to form a truss. Loads are transferred from the compression rings to the concrete substructure via paired A-shaped columns. The roof is covered with a PTFE glass fibre membrane on steel arches and protects the spectators from all weather conditions.

Location
Budapest, Hungary
Architect
Napur architect Kft Budapest
Cooperation
Buro Happold
Owner
BMSK Zrt.
Project Responsibility
Knut Göppert
Features
Membrane

Insights

Technical Data

Length x width
ca. 295 m x 235 m
Roof depth to tension rings
ca. 49 m
Height above ground
ca. 34 m
Roof area
ca. 25,000 m²
Seats championship mode
40,000
Seats legacy mode
25,000

Lectures

Awards

Location

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