Timber roofing of the Mitava open-air concert hall, Pasta Island, Jelgava, Latvia

Structures Analysed with Dlubal Software

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Customer Project

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A timber roof structure was recently constructed over an existing amphitheater in Jelgava, Latvia. The project located on Pasta Island serves as a multi-functional building for recreational, cultural and social activities.

Investor City of Jelgava, Latvia
www.jelgava.lv
Architect Vents Grietens
Projektu birojs Grietens un Kagainis SIA, Latvia
Structural Analysis Rodentia SIA, Latvia
www.rodentia.lv
Design Igate Būve SIA, Latvia
www.igatebuve.lv
Manufacturing IKTK SIA, Latvia
www.iktk.lv

Model

It was decided to use an oval structure to cover the circular amphitheater. The architectural design was inspired by a seashell as the building is located on an island. Special acoustic screens and panels as well as rounded elements for the beams were designed in collaboration with an acoustics engineer to provide optimal sound for high level performances.

Structure

The structure is comprised of curved glulam beams with steel ties that are simply supported with an oval glulam ring beam. The curved glulam ring beam is further supported by steel columns. There is a pinned connection on either side of the building where the ring beams are connected to the support.

The total height of the structure is 47 ft 7 in. The overall dimensions are 198 ft 9 in by 199 ft 2 in with the longest curved glulam beam span of almost 197 ft.

The structure is covered with tensile fabric designed and manufactured by Canobbio Textile Engineering.

Keywords

Oval wooden structure Timber Roof Structure Amphitheater

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  • Updated 8 March 2021

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