3540x
001161
2020-02-11

Le Haut-Bois High-Rise Building in Grenoble, France

Two 9- and 6-story residential buildings, which include 56 units in total, are the first in France to be certified passive at the height of 9 stories. The buildings, constructed with 52,972 ft3 of zinc-coated wood, are both an architectural masterpiece and an innovative achievement to inspire housing sustainability for the next decade.

Extensive CLT panel knowledge, calculation methods, and manufacturing techniques have allowed for easier design and construction of tall wood buildings today.

The Haut-Bois residential building in Grenoble is one of the first CLT building projects in France to reach a height of 99 ft. The total floor space is approximately 50,590 ft².

Structure and Design

The 9-story building structural concept is based on the use of optimized CLT panels on corresponding story heights. Therefore, the panel thicknesses decrease as the building height increases. The exterior and inner load-bearing walls provide stability to the building.

The floor diaphragms transfer the lateral seismic forces (zone 4) and wind loads to the vertical supports and eventually down to the foundations. The floors are supported by a metal and glued-laminated timber post-beam system, which does not contribute to the stability of the building.

The reinforced concrete floor slabs are significant in the design, as they transfer the upper stories’ vertical and horizontal loads to the foundations.

The CLT panel and seismic analysis were carried out with Dlubal Software’s RFEM.

Design Software

The following programs were used for the structural analysis:

  • Structural Finite Element Analysis Software RFEM
  • The RF-DYNAM Pro module for seismic analysis
  • The RF-LAMINATE module for the calculation of CLT panels and laminate surfaces
Client ACTIS, Grenoble, France
www.actis.fr
Structural Analysis Ingénierie Bois, Bischheim, France
www.ingenieriebois.fr
Alpes Structures, Pontcharra, France
www.alpes-structures.fr
H.V. Conseil, Vimines, France
Architecture Atelier 17c Architecture, Barraux, France
ASP Architecture, Saint-Dié-des-Vosges, France
www.asparchitecture.fr


Project Specifications

Model data

Number of Nodes 2029
Number of Lines 3288
Number of Members 506
Number of Surfaces 679
Number of Load Cases 7
Number of Load Combinations 9
Number of Result Combinations 3
Total Weight 381.737 tons
Dimensions 72.68 x 51.51 x 86.24 feet
Program Version 5.21.01

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