School Building in Sutz-Lattrigen, Switzerland
Customer Project
The school building addition in Sutz-Lattrigen was built on the existing foundation floor. This foundation was not designed to withstand a second story. Therefore, the loads from the first floor and the additional second story had to be designed as concentrated loads. In order to reduce the weight but also for educational and sustainability reasons, timber was used in the construction of the new building.
| Client |
Municipality of Sutz-Lattrigen, Switzerland
|
| Architect |
Bauzeit Architekten, Biel, Switzerland www.bauzeit.com Lanz Architekten, Sutz-Lattrigen, Switzerland www.lanzarchitekten.ch |
| Timber Engineering |
Indermühle Bauingenieure, Thun, Switzerland
|
| Civil Engineering of Reinforced Concrete |
Emch + Berger AG, Bern, Switzerland
|
| Timber Construction Company |
Wenger Holzbau AG, Steffisburg, Switzerland
|
Model Data of Primary Two-Story Structure
Model
Indermühle Bauingenieure from the Swiss town of Thun was responsible for the timber engineering during the project phase, from the preliminary project to the supervision of the final design. The firm also completed the 3D project planning on behalf of the timber construction company. RFEM was utilized for the structural analysis.
Structure
The additional floor consists of floor-to-ceiling trusses in the longitudinal and transverse directions. The truss diagonals are glued laminated timber, while the chords are steel. The chords are integrated in the timber-concrete composite floors.
The diagonals are connected with dowels and internal steel plates. The second floor cantilevers are 10 ft in the longitudinal direction and 13 ft in the transverse direction over the first floor.
The visible timber structure, as well as the glazed exterior and interior walls, create an intimate, open atmosphere.
Project Location
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Timber Beam-Column Design per NDS 2018 Using RF-/TIMBER AWC Module
In this article, the adequacy of a 2x4 dimension lumber subject to combined bi-axial bending and axial compression is verified using RF-/TIMBER AWC add-on module. The beam-column properties and loading are based on example E1.8 of AWC Structural Wood Design Examples 2015/2018.
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Programs Used for Structural Analysis
Module Extension for STEEL EC3 and RF-STEEL AISC
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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Add-on Module
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Add-on Module
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Add-on Module
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