Pal Kal Floor Ceiling System

The controversial pal kal ceiling floor system was invented as a cost cutting method in the 1980s by then public works department pwd chief structural engineer eli ron.
Pal kal floor ceiling system. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. Pal kal is a cheap lightweight construction method that uses metal plates and thin layers of cement. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. The problem with the method involves multi story buildings since.
Instead the standards institute established a panel of experts to study it and they did eventually rule the system did not meet the necessary standards and banned it. As well as a few weeks before the collapse the wedding hall owners decided to remove some partitions. It was popular in the 1980s but was banned by the israel standards institute in 1996. An initial inquiry blamed the collapse on the pal kal method of constructing light weight coffered concrete floor systems.
The palkal method was used in dozens of buildings to speed up construction with cheaper and lighter materials used for ceilings. The boxes typically 700mm wide are placed onto the fresh concrete with 150mm spaces between them. The system substitutes the conventional steel beam rebar and concrete slab floor ceiling structure with long corrugated tin boxes encased in a concrete web sandwiched. Fresh concrete is placed over the entire floor shutter to a depth of around 20mm the mesh is then laid and covered with another 20mm or so of concrete.
The system substitutes the. The controversial pal kal ceiling floor system was invented as a cost cutting method in the 1980s by then public works department pwd chief structural engineer eli ron. The collapse of a pal kal ceiling in ashdod in 1995 killing an electrician at work in the building was not enough however for the system to be banned outright. The cost of examining pal kal ceilings is about 10 per square meter and reinforcing them would cost 60 100 per square meter depending on the condition of the ceiling and the type of reinforcement required.
Pal kal floors are constructed in layers.