701x
001365
2025-08-28

Heimdalsporten in Trondheim, Norway

Heimdalsporten is a modular residential complex designed in 2020 in Trondheim and consisting of four towers: two with seven floors and two with eight floors. Each tower is built around a central reinforced concrete core that houses the services and staircases, which rises from a foundation and ground floor also made of reinforced concrete. The prefabricated modules are arranged around these cores, using special steel connections designed and developed by Ergodomus in collaboration with the module manufacturer, Unihouse SA, to accommodate the increasing vertical load.

Made of hybrid materials and featuring a frame structure, the project uses modular timber structure to offer sustainable housing solutions that are quick to assemble and meet the demand for eco-friendly residential buildings.Each module arrived on site with systems already installed (bathrooms, furnishings, electricity, and plumbing), floors and walls already finished, making it almost ready for use from the moment it was assembled.

Customized Connections and Advanced Structural Analysis

Ergodomus, in collaboration with Unihouse SA, developed customized steel connections designed to facilitate on-site assembly using a self-aligning system. These connections, also designed using a 3D FEM model, are capable of withstanding horizontal loads (wind, seismic) and accommodating the natural movements of timber due to variations in humidity and compression.

The logistics were precisely orchestrated: the modules, manufactured in Poland by Unihouse SA, were loaded onto the ship in reverse order to the assembly schedule, ensuring optimal flow during unloading and installation. Deliveries complied with Norwegian regulations and took place at night due to the rigid dimensions of the modules.

Assembly exceeded all expectations: the first seven-story tower was completed in just 10 days, while the second tower was assembled at an even faster pace, with 12–14 modules installed per day, that is, about 30% faster.

Location Trondheim, Norway
Structural Design
Investor


Project Specifications

Model Data

Number of Nodes 12391
Number of Lines 19117
Number of Members 13933
Number of Surfaces 2529
Number of Load Cases 20
Number of Load Combinations 186
Number of Result Combinations 3
Total Weight 1654.413 tons
Dimensions (Metric) 30.817 x 30.758 x 45.000 m
Dimensions (Imperial) 101.11 x 100.91 x 147.64 feet
Program Version 5.19.01

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