Abstract: A slab formwork system is disclosed having a plurality of formwork elements which have first hook members at their lower side for establishing a hook connection with second hook members provided at upper end sections of vertical supports. The first and second hook members are designed to establish the hook connection, on the one hand, when the formwork elements and the vertical supports extend parallel or obliquely to one another and such that pivoting of a formwork element is possible, on the other hand, while maintaining the hook connection, into such a position in which the formwork element and the vertical supports include an angle of approximately 90°. The formwork element can be coupled, prior to the pivoting, with a railing member extending substantially perpendicular to the formwork element. A method for the preparation of a slab formwork system of this type is also disclosed.

Abstract: In a rail-guided self-climbing formwork system 10 in the building sector, climbing rails 18 are guided in climbing shoes 24, 26, 34, 36, wherein the climbing rails are integrated into a scaffold unit. The scaffold unit also includes a working platform 12 and a finishing platform 16, which are also attached to the climbing rails 18. Climbing rail extension pieces 20, 22 can be mounted on the free ends of the climbing rails 18 and rigidly attached thereto. The climbing rail extension pieces 20, 22 are shorter in length than the climbing rails 18.

Abstract: The invention concerns a panel formwork corner system, comprising a) a panel formwork inner corner element (1), with two inner limbs (5, 6) that are connected to each other and arranged at an angle with respect to each other, b) a panel formwork outer corner element (2) with two outer limbs (25, 26) that are rigidly connected to each other and disposed at an angle with respect to each other, c) two rectangular panel formwork elements (3, 4), each being formed with at least one tie hole (13, 14, 15, 16), wherein all tie holes (13, 14, 15, 16) of a panel formwork element (3, 4) are disposed in a common tie hole plane (A), wherein this tie hole plane (A) extends centrally between two parallel lateral outer edges (17, 18, 19, 20) of the rectangular panel formwork element (3, 4) and perpendicularly with respect to the formlining plane (SE), wherein the position of each tie hole (8, 9, 10, 11) of each inner limb (5, 6) with respect to three lateral outer edges (21, 12, 22) of the inner limb (5, 6) corresponds to t

Abstract: A climbing shoe (10) comprises a sliding shoe section (16) and wall shoe section (18). The sliding shoe section (16) is designed so that it can guide and hold a climbing rail. The wall shoe section (18) is connected to the sliding shoe section (16) in an articulated manner.

Abstract: A transverse bolt (1) is to be fastened to a formwork element (110, 120) of a concrete formwork (100), preferably a curved concrete formwork. The transverse bolt (1) comprises a first end section located at a first end of the transverse bolt (1), in the longitudinal direction thereof, having at least one elongated hole, and at least one round hole. A curved concrete formwork comprises formwork elements (110, 120) that are provided with such a transverse bolt. A bolt fixture (2), by means of which the transverse bolt (1) can be fastened to the formwork element (110, 120) of the curved concrete formwork, is arranged on the transverse bolt. The elongated hole (3) and the round hole (4) are preferably located next to each other in the longitudinal direction of the transverse bolt (1) in the first final section of the transverse bolt (1).

Abstract: A floor table (1) of a concrete mould for producing a concrete floor (2), comprising at least one front (18, 19) and one rear holder (23) for fixing at least one front (11) and at least one rear ligament (12) of a crane harness (9), characterized in that when the floor table (1) is in a disengaged and retracted state underneath a recently hardened concrete floor (2), it is possible to have access to the holders (18, 18 23) which are used to fix the ligaments (11, 12). The inventive floor table can be drawn out from the floor and displaced with less danger to the workers and requiring less effort in comparison with conventional floor tables.

Abstract: A ceiling joist formwork system (1) comprises a ceiling table (2), a vertical support (6), an inner board (3), a ceiling joist base (4), and an outer board (5), the outer board (5) and the ceiling joist base (4) being interconnected, especially rigidly interconnected. The vertical support (6) is rigidly fixed to the ceiling table (2), and the ceiling joist base (4) is fixed to the vertical support. The system is characterised in that the ceiling joist base (4) and the outer board (5) are rotatably mounted about a first articulated point (GP1) on the vertical support (6), a guide (7) is rigidly fixed to the inner board (3) and the guide (7) and the inner board (3) are rotatably mounted about a second articulated point (GP2) on the ceiling joist base (4). The inner board (3) is guided by means of an edge (14a, 14b) in relation to the ceiling table (2) along a direction comprising at least one component vertical to the formwork upper plane of the inner board (3).

Abstract: The invention relates to a locking device (20,21) for an anchor rod (2) of an anchor system of a concrete wall form, comprising a screw nut element for screwing the anchor rod through a screw thread of the screw nut element. A dome plate can be fastened to a back of a form element (5,6) of the concrete wall form by means of fastening elements (30) and has a spherically shaped plate section with an opening in which the screw nut element is arranged so as to have radial play. The screw nut element has a groove-type radial seat which accommodates the edges of the opening in the spherical plate sections.

Abstract: Disclosed is a head (17) for a prop of formwork for a concrete ceiling. The prop head (17) comprises an end piece (15) which faces the concrete ceiling and of which the longitudinal axis extends substantially perpendicular to the plane of the concrete formwork. The prop head (17) further comprises a hinge mechanism (20) at the end piece (15) end facing away from the concrete ceiling. The longitudinal axis of the end piece (15) can be placed in swiveled positions relative to the longitudinal axis of the prop in hinged positions of the hinge mechanism (20), the hinged positions being lockable by means of fastening means (30), preferably on the hinge mechanism (20). A load-introducing center of gravity formed by the end piece (15) end facing the concrete ceiling essentially lies on a line encompassing the longitudinal axis (62) of the prop (2, 3, 4) in the hinged positions.

Abstract: A rail-guided climbing system comprising climbing brackets (36, 38, 40) in which climbing rails (32, 34) are guided, rigidly fixed to a scaffolding unit (12). Each climbing bracket (32, 34) comprises a joint (52) arranged between a first climbing bracket (40) and a second climbing bracket (38). The free end of the climbing rail (32, 34) may be inserted into a climbing bracket (36, 40) rigidly fixed on the construction (16) and the angular position of adjacent climbing rail sections (48, 50) is adjusted via the joint (52) by means of an adjuster device (58, 68).

Abstract: A turnbuckle device (11) for clamping concrete shell elements (1, 2), having two claws (12, 13), which may be displaced toward one another, and a wedge (18) or the like, the claws (12, 13) having legs (14, 20; 41), the legs (14, 20; 41) having contact surfaces (30, 31; 43) extending in a plane to rest on struts (7, 21; 50) of frames (5, 6) of concrete shell elements (1, 2), the legs (14, 20; 41) having lugs on their free ends (16, 22; 40), which are capable of engaging behind depressions (9, 15) in frames (5, 6) of concrete shell elements (1, 2), is characterized in that an extension (17; 42; 44; 45) is provided on a lug (16; 40) of a leg (14; 41), which extends away from the contact surface (30, 43) at least partially perpendicularly to the plane of the contact surface (30; 43) of the leg (14; 41). The mounting of the turnbuckle device is thus made easier.

Abstract: The invention relates to a slab formwork system comprising a plurality of formwork elements (98) which have on their underside girders (2) which can be coupled to heads (28) of vertical supports (90), in which slab formwork system the head of a vertical support has a lifting lock (44-51; 87) fixing a girder of a formwork element in the vertical direction. In addition, the head of a vertical support has fixing elements (52-66) which prevent a movement of the girder in its longitudinal direction.

Abstract: The invention relates to a ceiling formwork system comprising several grid elements, each of which is composed of a plurality of parallel longitudinal beams and at least one transversal beam that can be mounted or placed on vertical supports and extends perpendicular to the longitudinal beams. The longitudinal and transversal beams of the grid elements are rigidly interconnected. Standard grid elements are provided with two transversal beams in the opposite terminal areas of the longitudinal beams while transversal compensating grid elements are fitted with two transversal beams which are offset towards the inside in relation to the standard grid elements.

Abstract: The invention relates to scaffold steps, with two separate side pieces (11) and a plurality of separate step elements (13, 13?, 13?), which can be detachably coupled to each other and to the side pieces.

Abstract: A climbing shoe (10) of a climbing formwork for fixing to a concreting section (14) of a building comprises a sliding shoe part (16) on which claws (50) are provided. At least one claw (50) is provided in a pivotal and/or telescopic manner on the sliding shoe part (16).

Abstract: The invention proposes a wooden lattice girder 1 for construction comprising an upper chord 4 and a lower chord 5, connected to each other by struts 2, having tenons 7 each at the ends thereof, wherein the tenons 7 at one end each of the struts 2 are glued into mortises 9 on the upper chord 4, running in the longitudinal direction of the upper chord 4, and the tenons 7 at the other end of the struts 2 are glued into mortises 9 on the lower chord 5, running in the longitudinal direction of the lower chord 5. The lateral surfaces 12 of a respective mortise 9 running in the longitudinal direction thereof encompass an acute angle and the surfaces 10 of the tenon 7 glued to said lateral surfaces 12 of said mortise 9 encompass a corresponding acute angle.

Abstract: The invention relates to a lowering device (10) for the construction industry, which comprises a support structure. The lowering device comprises a plate (17) holding a locking mechanism (16) and blocking or releasing the mobility of bolts (12, 13). The bolts (12, 13) are firmly linked with a support structure and are fastened on the locking mechanism (16) in a controlled manner to such an extent that, in a first position, the support structure linked with the lowering device (10) is lifted and, in a second position of the locking mechanism, the support structure linked therewith is lowered as much as the locking mechanism permits.

Abstract: A climbing cylinder (10) of self-climbing formwork in the building area is provided such that it can move climbing rails (22) along a wall (12). At one end the climbing cylinder (10) has a fixing for an anchor point of the wall and at the other end a catch (30) is provided on the climbing cylinder, which can be brought into engagement with the climbing rail such that it bears the climbing rail (10) on the one hand and can displace it on the other hand. The climbing cylinder (10) can be fixed at an anchor point of the building or on a climbing shoe (18).

Abstract: The invention relates to industrial scaffolding comprising vertical supports, which can be interconnected by means of horizontal bars. Plates, which extend on a horizontal plane, can be hooked onto the bars to create an accessible working surface. When the plates are fitted, edge areas of the latter overhang the base body of the plates in such a way that a bar running parallel to an edge area is partially covered by said edge area.

Abstract: The invention relates to a formwork system which comprises formwork elements having opposite formwork interior surfaces, which can be interlinked at a distance to one another by means of formwork ties. Said formwork ties are constituted of a bolt element and two locking elements that are configured so as to be coupled to the bolt elements in the two distal areas thereof facing away from each other and that are adapted to transmit tensile forces from the formwork elements onto the bolt element. The formwork system is characterized in that the locking elements comprise coupling elements for transmitting pressure forces from the formwork elements onto the bolt element.