Palazzo Meridia Office and Retail Building, Nice, France
Customer Project
The recent trend in high-rise construction is clearly dominated by timber as the most ecological and environmentally-friendly material. The project promoter Nexity Resolutely is committed to constructive building solutions with a reduced carbon footprint through various labels and certifications included in its several office and commercial timber projects.Among these is the Palazzo Meridia, which is currently the tallest CLT office building in France. Dlubal customer CBS-Lifteam was responsible for the planning, supply, and installation of the timber structure.
| Customer |
Nexity, Ywood entreprises.nexity.fr |
| Architect | Architecture-Studio, France |
| Timber Structural Analysis and Design |
CBS-Lifteam www.cbs-cbt.com |
Model
Palazzo Meridia is a 10-story office building, of which 9 stories are constructed with timber. With a total height of 115 ft, its ground area is 181 ft long and 56 ft wide. The basement, which accommodates 31 parking spaces, the ground floor and two staircases, is made of reinforced concrete. A remarkable, open metal facade supports the corridors and allows the plants to climb the facade.
Calculation and Modeling
The concrete staircases act as bracing for the entire timber-frame structure consisting of visible glulam beams and CLT facade elements. Large CLT panels with dimensions of 11 ft x 56 ft and 9 ft x 56 ft were used for the facade walls and floors to speed up assembly. The building construction was reduced to 5 months, saving a total of 10 days per story.For comparable results with the reinforced concrete design carried out by a partner engineering office, CBS-Lifteam created a multi-material timber and concrete model including all structure stiffnesses. The Dlubal Software RF-DYNAM Pro add-on module was used to determine seismic effects and deformations.
The structural analysis of the CLT elements was carried out with the RF-LAMINATE add-on module. RF-TIMBER Pro designed and dimensioned the timber frame structure. Since the office building is located in a region prone to earthquakes (in Nice, earthquake zone 4), seismic analysis was considered, assuming the horizontal forces would be transmitted by the CLT floors acting as diaphragms to the concrete staircases. The timber facades would not contribute additional bracing to the structure.
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AISC 341-16 Moment Frame Member Design in RFEM 6
The three types of moment frames (Ordinary, Intermediate, Special) are available in the Steel Design add-on of RFEM 6. The seismic design result according to AISC 341-16 is categorized into two sections: member requirements and connection requirements.
Programs Used for Structural Analysis
Add-on Module
Timber design according to Eurocode 5, SIA 265, and/or DIN 1052
1,450.00 EUR
Add-on Module
Deflection analysis and stress design of laminate and sandwich surfaces
1,450.00 EUR
Add-on Module
Seismic and static load analysis using multi-modal response spectrum analysis
1,000.00 EUR
Add-on Module
Dynamic and seismic analysis including time history analysis and multi-modal response spectrum analysis
1,450.00 EUR
Add-on Module
Nonlinear dynamic analysis of external excitations
1,450.00 EUR
