A buckling-restrained brace with a flat energy dissipation element, a building with the brace and an assembly method of the brace belongs to the field of force-resisting members of structural engineering. The brace includes a telescopic inner restrained member, an outer restrained member sleeved outside the inner restrained member, and the flat energy dissipation element between the inner and outer restrained members; the inner restrained member includes a first and a second steel square tube which are connected; the flat energy dissipation element includes four flat fuses, and two ends of each fuse are connected to four sides of the first and second steel square tube by bolts; and the inner section of the outer restrained member is square, the outer restrained member covers the flat energy dissipation element, and a certain gap is disposed between the outer restrained member and the flat energy dissipation element.

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 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.

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.

In certain embodiments, a pile bridge assembly includes first and second pile brackets for rigid mounting onto first and second piles of a pier; a cap bracket sub-assembly for rigid mounting onto a beam of the pier supported by the first and second piles; a first compression arm rotatably connected (i) at a first end to the first pile bracket and (ii) at a second end to the cap bracket sub-assembly; and a second compression arm rotatably connected (i) at a first end to the second pile bracket and (ii) at a second end to the cap bracket sub-assembly. The pile bridge assembly restores the load capacity of damaged or degraded piers. The cap bracket sub-assembly can include first and second cap brackets, and the pile bridge assembly can further include one or more tension-managing straps.

The present invention relates to a device a device, a system and a method for levelling a wall or similar vertical surface.

The device (1) comprises a telescopic bar (2) and two feet (10) wherein each foot (10) is connected to the respective end of the telescopic bar (2). each foot (10) comprises a connection and guide mechanism (20) slidably connecting each foot (10) to respective the first end portion (5) and the second end portion (6) of the telescopic bar (2) so that the telescopic bar (2) is able to move in relation to the foot (10). Adjustment of the telescopic bar (2) allows to set a virtual plane adjacent to the wall or any other vertical surface to be processed or built. The device (1) allows fast and easy set up a work environment for constructing or building levelled surfaces.

The present invention relates to a device a device, a system and a method for levelling a wall or similar vertical surface.

The device (1) comprises a telescopic bar (2) and two feet (10) wherein each foot (10) is connected to the respective end of the telescopic bar (2). each foot (10) comprises a connection and guide mechanism (20) slidably connecting each foot (10) to respective the first end portion (5) and the second end portion (6) of the telescopic bar (2) so that the telescopic bar (2) is able to move in relation to the foot (10). Adjustment of the telescopic bar (2) allows to set a virtual plane adjacent to the wall or any other vertical surface to be processed or built. The device (1) allows fast and easy set up a work environment for constructing or building levelled surfaces.

A universal prop system for grid shoring provides increased versatility and cost effectiveness over conventional grid shoring systems for building construction, such as concrete parking garage construction. The universal props include a variety of interchangeable prop stands, interchangeable drop heads, and interchangeable stringer jacks with a variety of different types of stringer heads. The interchangeable drop heads interconnects the interchangeable stringer jacks with the interchangeable prop stands. The interchangeable drop heads are designed to support a variety of different types of rails, such as beams, joists, rafters, pipes, etc. The interchangeable stringer jacks include a number of different stringer heads configured to support a variety of different stringers. The different stringer heads include, for example, U-heads, spindle forks and jack plates, with and without detachable threaded shafts.

A universal prop system for grid shoring provides increased versatility and cost effectiveness over conventional grid shoring systems for building construction, such as concrete parking garage construction. The universal props include a variety of interchangeable prop stands, interchangeable drop heads, and interchangeable stringer jacks with a variety of different types of stringer heads. The interchangeable drop heads interconnects the interchangeable stringer jacks with the interchangeable prop stands. The interchangeable drop heads are designed to support a variety of different types of rails, such as beams, joists, rafters, pipes, etc. The interchangeable stringer jacks include a number of different stringer heads configured to support a variety of different stringers. The different stringer heads include, for example, U-heads, spindle forks and jack plates, with and without detachable threaded shafts.