Oxigeno in San Francisco de Heredia, Costa Rica

Customer Project

Architect Jerde
www.jerde.com
Engineering ETFE + Cable Structure + Cutting Patterns z3rch
z3rch.com
General Contractor ETFE Cushion Roof 3dtex GmbH
www.3dtex.de
Assembly Lonas Lorenzo
lonaslorenzo.com.mx
Manufacturing ETFE Foil Novum Membranes GmbH
novum-membranes.de
Manufacturing Stainless Steel Cables Jakob
www.jakob.eu

A unique project called "Oxigeno" is currently under construction in San Francisco de Heredia, San José, Costa Rica. The recreational and commercial space, which measures almost 1,345,489 ft², offers the visitor a relaxing shopping atmosphere in harmony with nature. Amongst others, 200 trees were planted on the site. The main food court is covered with a 17,222 ft² ETFE cushion as roof, currently the biggest one in the world.

The Dlubal customer z3rch used RFEM and RF-FORM-FINDING for the form-finding and the calculation of the structure including the cable web structure and the membranes.

Structure of ETFE Roof

The roof with a diameter of 148 ft consists of a ETFE foil which is supported by a cable web. At the edge, square hollow sections form two circulating rings which are supported on the customer's structure.

A security system against the formation of water pockets is used for this project, which has been developed by the company 3dtex. No plastic tube is inserted here inside the cushion. This system shall ensure a higher safety against the formation of water pockets on the one hand and a clear, elegant architectural design of the structure on the other hand.

The ETFE cushion is the first one in the city of San Francisco de Heredia and at the same time the biggest in the world.

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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

Price of First License
3,540.00 USD
RFEM Tensile Membrane Structures
RF-FORM-FINDING 5.xx

Add-on Module

Form-finding of tensile membrane and cable structures

Price of First License
1,750.00 USD