Especially shear walls, columns change shape throughout the project duration. In this case, the more versatile panel system with built-in plywood, such as TriTec, is used at the beginning until the sections become typical or repeating all the way through. However, the concrete finish specifications of the entire structure should be taken into consideration. Beam/waler wall systems like Flex 50 with plywood chosen by site might provide fair face concrete finish.  But this requires considerable manpower in customizing the wall shutter for the next pour.

Detaching the building of cores and staircases from the remaining project is the usual practice for high rises with more than six floors to be built. Up to 12 storeys, the utilization of crane-dependent climbing formwork CS240 is most economical. Depending on storage area at site and/or if the building exceeds 12 floors, hydraulic automatic climbing formwork is  in demand. Huge core walls and concreted facades indicate the usage as well. In any case, construction work becomes safer regardless of weather conditions. In conjunction with climbing scaffold, beam/waler wall formwork is used, such as Flex 50 (straight/round). For smaller projects, panelised systems like TriTec or TriTec Light for shafts might be an option.For safe working, additional platforms are needed especially at slab edges.  GHI recommends the installation of CS240/CS180 working platforms.  These are affordable and well-proven solutions. 

Limits in cranage, special reinforcements like beams and clearing heights exceeding 5.90 m require more individual solutions in the slab of the basements, first, mezzanine and technical floors. In here, the light weight and versatile Multiflex slab superstructure is used with individual support (either telescopic props or heavy duty shoring towers D-15). Open facades, uncomplicated and large areas allow the use of pre-assembled Multiflex slab formwork into “Table Units.” With appropriate shifting gear, the table units are lifted to the next floor after striking. This is most economical and fast solution available in the market.  The GHI lifting fork with a vertical member is suitable to lift the table out of the open building when the floor right above remains with shutter.

Panelised decking systems allow early striking after two days, while the slab has to remain under shutter for at least seven days. Props with drop heads remain under the slab until required concrete strength is achieved and the shutter panels itself are moved to the next floor. Large, uncomplicated slab areas and limits in cranage indicate the economical use of these systems.

GHI formwork systems are designed and manufactured to finish a complete floor within a one-week cycle.