Timber Roof of Shopping Mall, Italy
Geometric Modeling of Timber Roof
Timber Trusses and Glued-Laminated Timber Decking
Alì Shopping Mall from Bird's-Eye View
Detail of Connection Joints of Timber Beams
Customer Project
| Investor |
Alì SpA Via Olanda 2 - 35127 Padua, Italy www.alisupermercati.it |
| Architectural Design |
Signorotto Architects Via Riccati 7 - 31100 Treviso, Italy www.eastsuperdos.com |
| Structural Design and Timber Construction |
Holz Albertani SpA Loc. Forno Allione - 25040 Berzo Demo, Italy www.holzalbertani.it |
In 2018, Alì Supermercati decided to extend its already wide commercial network in the region with a new shopping mall in Via Noalese in Treviso, Italy. The project by Studio Signorotto Architettura of Treviso constitutes a roof made of glued-laminated timber, which complies with the buildings that have been already built in the past and are characterized by their perfect aesthetic design and the quality of the building material.
Holz Albertani SpA, an Italian leader in the field of timber construction, has won the contract for the construction and structural design of the timber roof resting on reinforced concrete columns. The roof, which covers an area of about 72,118 ft², consists of the trusses connected transversely by using stabilizing elements in two main directions, and is completed by glued-laminated timber decking on the top surface.
Structural Design
The structural design has been carried out by the engineering office of Holz Albertani SpA in compliance with the geometries and the architectural design by Signorotto Architects. The structural analysis software RFEM with the RF-LAMINATE and RF-DYNAM Pro add-on modules used for the design enabled the calculation of an orthotropic roof slab and evaluation of its behavior in combination with a dynamic load. Due to the detailed structural design, perfectly harmonized with the architectural and engineering requirements necessary for such a great construction, it was possible to assemble the roof in a short time and reduce building problems to a minimum.
The main structure consists of the trusses with the maximum span of about 66 ft between the pillars. The roof set on the main trusses consists of a glued-laminated timber slab with a thickness of 3 5⁄32 in. Between the individual timber elements, there are the connections with corresponding stiffnesses, and the same are used for the outer structures made of reinforced concrete.
The resulting structure with a high aesthetic and functional quality was designed to meet the current seismic design requirements.
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Programs Used for Structural Analysis
RFEM
Main Program
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
3,540.00 USD
RFEM
Dynamic Analysis
Add-on Module
Dynamic analysis of natural frequencies and mode shapes of member, surface, and solid models
Price of First License
1,030.00 USD
1,030.00 USD
RFEM
Dynamic Analysis
Add-on Module
Seismic and static load analysis using the multi-modal response spectrum analysis
Price of First License
760.00 USD
760.00 USD
RFEM
Other
Add-on Module
Deflection analysis and stress design of laminate and sandwich surfaces
Price of First License
1,120.00 USD
1,120.00 USD
RFEM
Timber Structures
Add-on Module
Timber design according to Eurocode 5, SIA 265 and/or DIN 1052
Price of First License
1,120.00 USD
1,120.00 USD
