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Last edited 27 Dec 2018
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Falsework is '...scaffolding or other temporary structures used to support construction components until the construction is sufficiently advanced to allow the structure to support itself'. Ref The HS2 London-West Midlands Environmental Statement, Department for Transport, November 2013.
There are three main types of systems used for falsework. These include:
- Type 1 - Aluminium support legs with aluminium frames assembled into falsework systems, such as; Ischebeck Titan, SGB GASS or PERI MultiProp.
- Type 2 - Individual aluminium or steel props, including either timber header beams or proprietary panels, such as ; PERI Multiflex or Doka Eurex Systems.
- Type 3 - Heavier steel falsework, such as; RMD Kwikform System Shoring or A-Plant Acrow Props.
The design philosophy behind falsework differs from that of permanent works. They are highly stressed, usually to 90% of their capacity over short periods of time and involve reusable components. Props are rarely tied down and rely on their self-weight and supported load for lateral stability.
As with general construction, stability is often identified as the main cause of collapse. BS 5975 (BSI, 2011; clause [IP address hidden]) recommends that all falsework is designed for 2.5% of the vertical load acting horizontally as a tolerance for workmanship during erection.
 Find out more
 Related articles on Designing Buildings Wiki
- Bridge construction.
- Crane supports.
- Deleterious materials.
- Design liability.
- Facade retention.
- Health and Safety.
- Slip form.
- Temporary works.
- Trench box.
- Trench support.
 External references
- BS5975:2008 + A1: 2001 Code of Practice for Temporary Works Procedures and the Permissible Stress Design of Falsework (BSI 2011).
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