Abstract: The invention relates to a tunnel lining segment of reinforced concrete, wherein the tunnel lining segment has a load transfer area for a longitudinal joint, with at least one steel bar with an end face being installed in the tunnel lining segment, the steel bar being arranged in the tunnel lining segment in such a way that a tangent to a centroidal axis of the steel bar encloses an angle of between 0° and 45° in the end face with a normal to the load transfer area, and wherein the end face is arranged at a distance (a) from the load transfer area which is between 0 mm and 50 mm, preferably between 0 mm and 10 mm.

Abstract: “A method for producing a construction section of a deck slab for a bridge includes the following operations: producing a bottom layer composed of a segment and having cross beams, which are arranged in the transverse direction in regard to the longitudinal axis of the longitudinal bridge girder, from reinforced concrete; transporting the bottom layer having the cross beams for a construction section of the deck slab using a conveyor device from an assembly site to an installation site and lowering it into the installation position; producing a top concrete layer for a construction section of the deck slab on the bottom layer; removing the bottom layer having the cross beams for a construction section of the deck slab from the conveyor device and moving the conveyor device away from the installation site.

Abstract: The invention relates to a tunnel lining segment made of reinforced concrete, wherein the tunnel lining segment has a load transfer area for a longitudinal joint, with at least one steel bar with an end face being installed in the tunnel lining segment, the steel bar being arranged in the tunnel lining segment in such a way that a tangent to a centroidal axis of the steel bar encloses an angle of between 0° and 45° in the end face with a normal to the load transfer area, and wherein the end face arranged at a distance (a) from the load transfer area which is between 0 mm and 50 mm, preferably between 0 mm and 10 mm.

Abstract: A first arch and second arch are produced in respective first and second structural portions. Each arch has a tie rod interconnecting the foot points of the arch, where a foot point of the arch is displaceably mounted. Each tie rod is tensioned so that horizontal forces caused by the weight of the arches at the foot points of the corresponding arch, are taken up by the tie rods. A first end point of the tie rod of the first arch is connected in a force-fitting manner to the first abutment, and a second end point of the tie rod of a last arch is connected in a force-fitting manner to the second abutment. The remaining adjoining end points of the tie rods are connected to one another in a force-fitting manner, and corresponding foot points of the arches are connected in a force-fitting manner to the abutments and pillar.

Abstract: A first arch and second arch are produced in respective first and second structural portions. Each arch has a tie rod interconnecting the foot points of the arch, where a foot point of the arch is displaceably mounted. Each tie rod is tensioned so that horizontal forces caused by the weight of the arches at the foot points of the corresponding arch, are taken up by the tie rods. A first end point of the tie rod of the first arch is connected in a force-fitting manner to the first abutment, and a second end point of the tie rod of a last arch is connected in a force-fitting manner to the second abutment. The remaining adjoining end points of the tie rods are connected to one another in a force-fitting manner, and corresponding foot points of the arches are connected in a force-fitting manner to the abutments and pillar.

Abstract: A roadway joint device for providing a drivable joint section between a road and an adjoining structure, particularly a bridge structure, includes at least one joint element placed on a sliding surface adjacent to the bridge structure. A longitudinal axis of the joint element is arranged substantially parallel to a plane of the roadway and a bridge end section of the bridge structure. Joint gaps with a specified gap width are arranged between the joint element and the adjoining bridge end section and/or an adjoining retaining device arranged at a distance to the bridge end section. The joint element is attached to at least one rod, the rod being arranged substantially in the direction of the longitudinal axis of the bridge structure, anchored at one rod end in the bridge structure and another rod end thereof in the retaining device.

Abstract: The invention relates to a method for producing a tower construction (1) from reinforced concrete. A tower has at least one cavity (35) that extends in the longitudinal direction within the tower. Double-wall elements (2) are arranged along a periphery of the tower, each comprising an external plate (3) as well as an internal plate (4) in vertical or inclined position, forming vertical external joints (5) as well as vertical internal joints (6) between the external plates (3) and the internal plates (4). A reinforcement (9) is installed in the area of the vertical external joints (5) in-between the external plates (3) as well as the vertical internal joints (6) in-between the internal plates (4). The vertical external joints (5) and the vertical internal joints (6) in-between the double-wall elements (2) are closed and the double-wall elements (2) are filled with concrete (23).

Abstract: A roadway joint device for providing a drivable joint section between a road and an adjoining structure, particularly a bridge structure. includes at least one joint element placed on a sliding surface adjacent to the bridge structure. A longitudinal axis of the at least one joint element is arranged substantially parallel to a plane of the roadway and a bridge end section of the bridge structure. Between the at least one joint element and the adjoining bridge end section and/or an adjoining retaining device arranged at a distance to the bridge end section, respective joint gaps with a specified gap width are arranged. The at least one joint element is attached to at least one rod, the rod being arranged substantially in the direction of the longitudinal axis of the bridge structure, anchored at one rod end in the bridge structure an other rod end thereof in the retaining device.

Abstract: The invention relates to a method for producing a tower construction (1) from reinforced concrete having at least one cavity (35) that extends in the longitudinal direction within, wherein essentially initially there are arranged along a periphery (12) of the tower construction (1) double-wall elements (2), each comprising an external plate (3) as well as an internal plate (4) in vertical or inclined position, forming vertical external joints (5) as well as vertical internal joints (6) between the external plates (3) and the internal plates (4), wherein the double-wall elements (2) are secured against toppling over in their position arranged next to each other, wherein subsequently there is installed a reinforcement (9) in the area of the vertical external joints (5) in-between the external plates (3) as well as the vertical internal joints (6) in-between the internal plates (4), followed by the vertical external joints (5) and the vertical internal joints (6) in-between the double-wall elements (2) being sui

Abstract: In a load-bearing construction (1) having at least one load-bearing element (2), the load-bearing element (2) has at least one cavity (5) in which at least one rod (4) is disposed, the total cross-sectional area of all rods (4) each arranged in a cavity (5) being smaller than the cross-sectional area of this cavity (5), and the remaining volume of the cavity (5) being filled with a material (6). The rod (4) is displaceable along its length relative to the load-bearing element (2) when the load-bearing element (2) is deformed, the rod (4) being non-displaceably fixed at only one point relative to the load-bearing element (2) and being designed such that it dissipates energy upon the occurrence of a relative displacement with respect to the load-bearing element (2).

Abstract: A gliding bed for a concrete slab comprises a first film and a second film wherein the first film can be brought into contact with a foundation of the concrete bottom slab and the second film can be brought into contact with a bottom side of the concrete slab by pouring concrete onto the second film and which films are tightly connected to each other at edges. In order to minimize friction between the concrete slab and the foundation, at least one gas- and liquid-permeable layer formed from a fleece and/or a textile fabric, a woven fabric or a knitted fabric is provided between the films.

Abstract: In a load-bearing construction (1) having at least one load-bearing element (2), the load-bearing element (2) has at least one cavity (5) in which at least one rod (4) is disposed, the total cross-sectional area of all rods (4) each arranged in a cavity (5) being smaller than the cross-sectional area of this cavity (5), and the remaining volume of the cavity (5) being filled with a material (6). The rod (4) is displaceable along its length relative to the load-bearing element (2) when the load-bearing element (2) is deformed, the rod (4) being non-displaceably fixed at only one point relative to the load-bearing element (2) and being designed such that it dissipates energy upon the occurrence of a relative displacement with respect to the load-bearing element (2).

Abstract: One bridge pier, two bridge girders and two supporting rods are manufactured in an approximately vertical position. The supporting rods are connected to the top of the pier and to the bridge girders. The bridge girders are brought into the horizontal final position by raising the end points of the bridge girders, which end points are located beside the pier. Finally, the end points (9) of the bridge girders are connected to the pier.

Abstract: A gliding bed for a concrete slab comprises a first film and a second film wherein the first film can be brought into contact with a foundation of the concrete bottom slab and the second film can be brought into contact with a bottom side of the concrete slab by pouring concrete onto the second film and which films are tightly connected to each other at edges. In order to minimize friction between the concrete slab and the foundation, at least one gas- and liquid-permeable layer formed from a fleece and/or a textile fabric, a woven fabric or a knitted fabric is provided between the films.

Abstract: One bridge pier, two bridge girders and two supporting rods are manufactured in an approximately vertical position. The supporting rods are connected to the top of the pier and to the bridge girders. The bridge girders are brought into the horizontal final position by raising the end points of the bridge girders, which end points are located beside the pier. Finally, the end points (9) of the bridge girders are connected to the pier.

Abstract: A reinforced concrete ceiling is characterized by a combination of the following features: a concrete slab (1) the thickness (D) of which falls short of the total thickness of the reinforced concrete ceiling, and intersecting ribs (2) which are each connected with an end region (3) to the concrete slab (1) in a force-transmitting manner and project freely upwards from the concrete slab (1), i.e., without being integrated in a further supporting surface structure, wherein their top end regions (4) are designed to absorb compressive and/or tensile forces and wherein the ribs (2) are connected to each other in a frictional manner at the respective intersection points (9), and their regions lying in each case between the top and bottom end regions (3,4) have at least one aperture (6).