"Salvador Allende" Gym in Cavezzo, Italy

Customer Project

Structural Engineering Structural Analysis
Studio Ergodomus - Ing. Franco Piva and Ing. Cristiano Benacchio
Pergine Valsugana (TN), Italy
Construction Contractor Company
Costruzioni Generali Due Spa
Sistem Costruzioni Srl
Baggiovara / Solignano, Italy
Architecture Architectural Design
Arch. Bruno De Pietri, Italy

Cavezzo is one of the towns in the region of Emilia-Romagna damaged by the 2012 earthquake. As a result of this event, many public and private structures were heavily damaged and became uninhabitable. The municipal gym is one of these structures which had damages so serious that it was necessary to completely demolish the existing structure made of reinforced concrete. The foundation was though partially left on site.

New Building Construction

The designer decided to rebuild the whole structure using timber as the main material. It is a lighter solution and well suited to meet the main requirement of reopening the gym in the shortest possible time.

The building has a rectangular plan with dimensions of approximately W x L x H = 33 m x 25 m x 10 m. The spacing between the frames made of glued laminated timber amounts to approximately 6.50 m. The bracing in the longitudinal direction is ensured by the presence of CLT panels appropriately fixed to the frame columns and the strip foundation.

The structure was modeled very accurately by using rotational springs on the beam-column coupling as well as on the panel-panel and panel-member joints. The spring stiffness was calculated according to the connectors used in accordance with current regulations. This allowed a very accurate assessment of the behavior of the structure under dynamic actions.

The specific analytical functions offered by RFEM enabled getting the shear stresses in the plane between the CLT panels. In this way the required bracing effect was ensured.

Due to the large forces involved, it was necessary to study a hybrid timber-steel joint with fully threaded screws. The real connection behavior was assessed with appropriate local analysis. Thanks to this process of refinement it was possible to reduce the amount of hardware, such as the number of connectors and plates.

The ability to model the structure as a whole concrete-timber system has allowed the evaluation of the interaction between the two structures.

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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

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