PERI SE

A compensation waler assembly ( 400 ) for connecting and aligning a pair of formwork panels ( 200 ) with each other is disclosed. The compensation waler assembly ( 400 ) includes a first bar ( 702 - 1 ), a second bar ( 702 - 2 ) disposed above the first bar ( 702 - 1 ), and a pair of hook sub-assemblies ( 704 ) disposed between the first bar ( 702 - 1 ) and the second bar ( 702 - 2 ). Each hook sub-assembly ( 704 ) is adapted to be engaged with one of the pair of formwork panels ( 200 ). Each hook sub-assembly ( 704 ) includes a hook-shaped portion ( 902 ) formed at one end of the hook sub-assembly ( 704 ) and adapted to be removably engaged with a slot formed in the respective formwork panel ( 200 ). The hook sub-assembly ( 704 ) further includes a distal portion ( 904 ) formed at the opposite end of the hook sub-assembly ( 704 ) and comprising a slot ( 706 ), and a locking component ( 708 ) adapted to be accommodated in the slot ( 706 ) to secure the hook sub-assembly ( 704 ) on the respective formwork panel ( 200 ).

A supporting device for the construction industry. Said device has a fixing element which rests against a side wall and is fixed at a fixing point of the side wall. Said device also has a cantilever which is connected to the fixing element and, when the fixing element is in the fixed state, projects from the side wall such that a load element can rest against a bearing point of a bearing element of the cantilever. The load element can now be displaced in a displacement direction substantially parallel to the side wall relative to the cantilever and, when the load element rests against the bearing element of the cantilever, the cantilever is coupled to the load element such that a displacement force component acts on the cantilever in the displacement direction when the load element is displaced, said displacement force component resulting in a torque on the cantilever.

A method for displacing a ceiling formwork for a nearest concreting section, wherein first and second supporting devices for supporting the ceiling formwork are arranged below the nearest concreting section. Said supporting devices each have a shuttering position and a stripping position, wherein the ceiling formwork is raised to a concreting level in the shuttering position and lowered relative to the concreting level in the stripping position. The first supporting device is moved into the stripping position and the second supporting device is moved into the shuttering position, and a collision protection element is arranged between the second supporting device and an end face of the ceiling formwork when the end face of the ceiling formwork strikes the second supporting device after passing over the first supporting device, so the collision protection element forms a flank rising in the displacement direction for guiding the ceiling formwork in the displacement direction.

A lowering system for lowering ceiling formworks during the removal of formworks of a building ceiling, comprising a reciprocating piston and a support base, and a locking device, wherein the reciprocating piston is slidably mounted in the support base, and can be pushed from an extended working position to a lowered position, and can be locked in the extended position by means of the locking device. The locking device has a pivot bearing and an eccentric lever, wherein the eccentric lever is rotatably mounted in the pivot bearing, and the reciprocating piston and the support base are supported against each other in the working position by means of the eccentric lever.