Description
As part of an urban revitalisation plan, the multipurpose centre Forum Gdansk will offer both public and private spaces designed to revive the area both economically and culturally.
Constructed on 6 hectares of land, the Radunia River will pass underneath the complex covered by a glass structure 17 m in height.
The complex consists of a shopping centre, an historical heritage site, an office building, and a multi-storey car park built over the extant railway tracks.
ULMA Solution
The ULMA engineering team combined a variety of formwork and scaffolding systems so as to offer the most effective solution possible, tailored to the client’s specific needs.
The first stage of the project was the construction of a railway tunnel measuring 26 m wide and 400 m long that allows the train to pass underneath the mechanical systems of the complex. The 7.5 m walls could be completed in a single pour thanks to ORMA Wall Formwork’s 80 kN/m2 strength rating.
All work areas upheld the highest safety standards throughout construction. Work at height was performed using metal platforms featuring integrated stairways and handrails.
The complexity of the project was increased by the need to maintain uninterrupted rail traffic throughout construction, necessitating all assembly to be performed during the nighttime.
The railway tunnel ceiling was built using a combination of products: MK Trusses and TAC 1200 Profiles. The metal profiles spanned 12 m, while the fixed trusses spanned from 15 m to 33 m in length at 3 m to 6 m in height, and the portable trusses spanned 30 m at a height of 6 m. Both systems were supported by HEB-400 Beams set vertically on the wall. In order to perform the assembly on top of the trusses, workspaces were created employing a variety of ULMA products: metal platforms, MK Walers, the VR System, and VM Beams.
The slab formwork was suspended from the trusses in such a way that it could be raised and lowered between the overhead power cables without compromising any part of the railway infrastructure. This system greatly reduced assembly and pouring times by enabling all tasks to be performed in situ.
In addition to these structures, ULMA also provisioned the equipment necessary to build two viaducts with five spans each. The end sections were built using T-60 Climbing Towers, while prefabricated assemblies were used for the inner spans.
ULMA provided all appropriate safety systems for each work phase and area completed, including assembly, carpentry, and worksite access.
