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Demolition Syngenta High-Rise Building, Basel, Switzerland

Demolition of the centrally located Syngenta high-rise building was hardly noticed in the immediate surroundings.
Within the RCS Climbing Protection Panel, materials were carried off on each floor using small demolition excavators.
Adapted to match the building floor plan, the enclosure ensured that all demolition work could always be safely carried out – for the benefit of the jobsite team and passers-by.
Thanks to the very effective sealing off, virtually nothing was seen or heard on the outside of the ongoing demolition work.
The PERI protection panel enclosed the three top storeys each time of the high-rise structure and also enabled safe and efficient execution of all work operations at great heights.
Each week, the RCS protection panel units climbed one floor downwards with the help of the site crane.
The RCS protection panels were climbed in a downwards direction using a rail-guided procedure, and were securely mounted on the structure by means of climbing shoes also during the climbing process.

Project data

Location: Basel, Switzerland

Demolition of the 54 m high Syngenta headquarters in the centre of Basel, directly adjacent to the corporate campus and in close proximity to the highly frequented Schwarzwaldallee and Badischen Bahnhof

Requirements

  • Demolition with small demolition equipment; due to the directly adjacent buildings and required separation of materials and contaminants, demolition operations using large excavators was not possible
  • Protection of the surrounding area and construction site team from demolition emissions, falling objects and falling
  • Very high safety requirements of the client

Customer

ERNE AG Bauunternehmung, Laufenburg

Customer's benefit

  • On-going demolition of a high-rise building in weekly cycles, virtually unnoticed in the surrounding area
  • Maximum safety at all times during demolition operations thanks to individually adapted climbing wall units and platforms
  • Consistent fulfilment of all safety requirements whereby at no time were workers endangered or construction material and tools could fall to the ground
Portrait of Manfred Nussbaum, Foreman at ERNE AG Bauunternehmung, Laufenburg
Manfred Nussbaum
Foreman

I am very impressed with the PERI solution. At first, I was sceptical regarding safety and the progress of the demolition work in the high-rise building. Through the protection provided by the RCS Climbing Protection Panel, however, interesting and relaxed working conditions without risk is possible. In addition, we could climb much more efficiently than originally planned. As a result of this, and through the possibility of simultaneous execution of the demolition and disposal work, we could achieve a reduction in the planned schedule for the demolition work.

PERI solution

  • Jointly developed enclosure concept based on the RCS Rail Climbing System which allowed safe and efficient demolition work within the all-round and gap-free enclosure
  • The three-storey high enclosure system was completely covered on the outside with trapezoidal metal sheeting and prevented dirt, dust and noise from escaping
  • In synch with the demolition progress, the RCS Climbing Protection Panel was climbed downwards storey by storey on a weekly basis and thus completely securing the jobsite at all times
  • After the complete removal of an entire storey each time, the climbing protection elements were quickly lowered downwards one level by crane – rail-guided and always securely connected to the structure
  • Using the integrated working platforms, all work on the outer facade could be safely carried out
  • Delivery of the RCS Climbing Platforms, pre-assembled as frameworks, put together on the construction site in accordance with the PERI assembly plans to form protection panel units - competently supported by an experienced PERI supervisor