Showcases Byldis

The Zalmhaven World’s tallest prefabricated building Rotterdam, The Netherlands

Rich variety of elements

From internal walls in 300-, 400- and 500-millimetre thickness to facade elements and lift walls of 300- and 400-millimetres and balconies and slabs of 100 millimetres. In total there are 770 complete facade elements, 1140 internal walls, 400 balcony sheets and 250 stairways landings, that will be added from the 5th to the 54th floors at a rate of one floor a week.

Completion: Spring 2022 Client: BAM Bouw en Techniek - Grote Projecten

The Zalmhaven World’s tallest prefabricated building Rotterdam, The Netherlands

Rich variety of elements

Completion:

Spring 2022

Client:

BAM Bouw en Techniek - Grote Projecten

1. The project: De Zalmhaven

In the period up to 2030, hundreds of thousands of new homes must be built in the overcrowded area between Amsterdam, Rotterdam, Den Haag and Utrecht in order to meet growing demands. The solution? Go upwards! The 215-meter-high Zalmhaventoren in Rotterdam, near the Erasmusbrug, is being constructed entirely of precast elements. The tower will house no less than 452 apartments and penthouses, 33 mansions, a car park, offices, commercial spaces, a roof terrace and a restaurant with a view over the impressive Rotterdam skyline.

We had a target of one floor per week for the high-rise. Instead of four years, the realisation would now only take three and a half years. We used a so-called hoisting platform: a platform with cranes that is raised up one floor at a time. Limiting the construction time means less hindrance for the surrounding area, which is always desirable for an urban development project. The earlier completion of the project also delivers benefits for the client.

Construction safety is another reason why Byldis was chosen to supply a precast concrete skeleton. Safety in and around the construction site is significantly improved. Only a few members of personnel are needed to install the elements. There are fewer transport and hoisting operations needed and noise disturbance in the surrounding area is kept to a minimum.

4. Challenges & solutions

The challenge for Byldis at De Zalmhaven was mainly the combination of prefabrication and logistics. The number of logistical operations on the construction site must be kept to a minimum through optimal prefabrication. We do this by assembling natural stone, insulation, windows and fittings in advance in one of our three factories. The use of a hoisting platform instead of a traditional tower crane ensures that construction can continue all year round without too much hindrance from the weather conditions. This means that one storey per week can be realised.

5. Facts & figures

The project	452 apartments and penthouses, 33 mansions, a car park, offices, commercial spaces, a roof terrace and a restaurant
Location	Rotterdam, The Netherlands
Project size	215-meters high
Byldis contribution	engineering approx. 770 facade elements complete with natural stone, insulation and windows 1.140 internal walls 400 balcony sheets 250 stairways and landings 40.000 m2 slab floors the windows and curtain walls of the mid-rise, the two smaller 70-meter towers including the plinth construction
Byldis expertise involved	Byldis total concept (engineering, precast concrete, aluminium facades)
Start of production Byldis	June 2019
Start of assembly Byldis	January 2020
Completion Byldis	2021
Client	BAM Bouw en Techniek - Grote Projecten
Partners	Amvest & AM
Architects	KAAN Architecten (2 smaller towers) en Dam & Partners (high tower)