Abstract:
Verfahren zur Überhöhung eines Holzelements aufweisend die Schritte: Einschneiden mindestens eines Einschnitts (2) in eine Oberfläche des Holzelements (1); Einfügen eines expansiven Materials in den zumindest einen Einschnitt (2) des Holzelements (1); Ausdehnen lassen des expansiven Materials in dem mindestens einen Einschnitt (2), so dass eine Überhöhung des Holzelements (1) erreicht wird.
Abstract:
A steel-concrete composite structure (1) is described. The steel-concrete composite structure comprises a steel member (2) having an upper surface (5) and a plurality of shear connector elements (6) upstanding from the upper surface and a concrete slab (4) having upper and lower surfaces (7, 8). The slab is supported on its lower surface by the upper surface of the steel member. The slab comprises a plurality of through holes (9) between the upper and lower surfaces, each through hole tapering towards the lower surface so as to form an inverted frustally-shaped seating surface (10). The concrete slab is configured and positioned with respect to the steel member such that at least one shear connector element projects into each through hole. The steel-concrete composite structure comprises a plurality of removable inverted frustoconical plugs (15), each plug having top and bottom surfaces (18, 19; Fig. 6) and an inverted frustoconically-shaped plugging surface (20; Fig. 6). Each plug has at least one through hole (16) between the top and bottom surfaces. At least one plug (15) is seated in a corresponding through hole (9) of the concrete slab. Each plug is configured such that at least one of the least one shear connector elements (6) projecting into the corresponding through hole (9) is received by a corresponding though hole (16) of the plug. The structure also comprises a plurality of fasteners (17, 29), each fastener coupled to a corresponding shear connector element and arranged to discourage removal of a plug (15) from a through hole (9) of the concrete slab.
Abstract:
Coupling element (4) for a timber-concrete ceiling composite construction, consisting of a coupling bar (9) implemented onto the timber body (10) of the coupling element (4), which partially overreaches the surface of the body (10) of the coupling element (4), wherein the coupling bar (9) has openings (11) to insert the coupling reinforcements (6), and to connect with the ceiling beam (1) the coupling bar (9) has several openings (14) or grooves (12) and toothing (13) on the bottom edge.
Abstract:
This invention relates to a reinforced prefabricated open-web girder that is self-supporting or propped in the centre and that works primarily as a frame and secondarily as a doubly reinforced beam, manufactured using a lightweight-prefabrication method, with a frame and a lower concrete heel reinforced horizontally in a first stage, then the remainder is poured and reinforced on site with higher compression strength characteristics at its extremities, which is capable of withstanding any plastic hinges that occur; it is also reinforced along the body of the girder to withstand the total diagonal stress. On the ends of the girder are placed shear connectors that are supported on the column and that bear twice the load; the body of the girder is reinforced with vertical braces, continuous rods and the diagonals of the frame, all of which double the safety factor in order for the diagonal stress on the girder to be absorbed.
Abstract:
A method and system for in-situ construction of civil structures are provided. The system comprises two subsystems, wherein one subsystem is precast assemblies comprising stay-in-situation column/beam forms (1, 2) and lightweight concrete and / or EPS cored wall segments (3), and the other subsystem is a lightweight ribbed floor slab/deck subsystem which further comprises stay-in-situation rib forms embedded with rebar cages, and a plurality of rebars connected to the rib forms in a ladder like fashion with a dimensionally stable but flexible element for reinforcement of the slab which helps to create a lightweight monolithic RCC building structure with the help & benefits of lightweight precast components, within shortest possible time. The method comprises the steps of manufacturing, assembling, erecting and casting the concrete forms comprising beam forms (2), column forms (1), slab and wall assemblies (3), panels and the like.
Abstract:
Forjado para plantas de construcción, formado por piezas modulares que constan de un bloque (1) de poliespán expandido, provisto en los costados con conformaciones (8) prominentes y conformaciones (7) entrantes, reciprocas, poseyendo dicho bloque (1) un canal longitudinal (2), en el que va incluida una masa (5) de pegamento de hormigón que comporta anclada una estructura de celosía (6), mientras que transversalmente el bloque (1) posee en distribución alterna unas ranuras profundas (3) y unas ranuras poco profundas (4).
Abstract:
Die Erfindung betrifft ein Verfahren zur Herstellung eines Verbundelementes (1). Um ein Verbundelement (1) mit hoher Tragfähigkeit effizient herzustellen, ist erfindungsgemäß vorgesehen, dass ein erstes Element (2) mit einer Ausnehmung (5) bereitgestellt wird, wonach in der Ausnehmung (5) eine teilweise aus der Ausnehmung (5) ragende Bewehrung positioniert wird, wonach die Ausnehmung (5) mit aushärtbarem Material, insbesondere Beton (4), befüllt wird, wonach das aushärtbare Material in der Ausnehmung (5) unter Bildung eines zweiten Elementes (3) aushärtet, sodass die Bewehrung über das ausgehärtete Material formschlüssig mit dem ersten Element (2) verbunden ist. Weiter betrifft die Erfindung ein Verbundelement (1), aufweisend ein erstes Element (2) mit einer Ausnehmung (5) und zumindest ein mit dem ersten Element (2) verbundenes zweites Element (3), welches ein ausgehärtetes Material und eine Bewehrung aufweist.
Abstract:
L'invention concerne un plancher (10) de béton comportant au moins une poutrelle (12) présentant un axe (X) principal, une dalle (24) de béton qui est coulée de manière à reposer sur une face (14) supérieure de la poutrelle (12), une armature (30) métallique qui est prise dans la dalle (24), la poutrelle (12) étant liée à la dalle (24) de béton par au moins un élément de liaison rapporté qui est fixé à la poutrelle (12) et dont au moins une partie est prise dans la dalle (24) de béton, caractérisé en ce que la poutrelle (12) et l'élément de liaison sont réalisés en bois.
Abstract:
본 발명에 일 측면에 따르면, 하부 플랜지와, 하부 플랜지의 폭방향 중앙부에서 수직 상부로 형성되고 그 상부에는 길이방향으로 일정한 간격을 두고 관통하거나 일정 깊이로 형성된 복수의 결합공을 구비한 복부와, 복부의 양측면에 일정 두께의 돌출 길이를 갖도록 형성되어 면외 변형에 저항하는 보강 격벽으로 이루어지는 역T형 단면을 갖는 중앙 본체부와, 중앙 본체부의 길이방향 양단부에서 박스형 단면의 일정 길이로 형성되는 단부 격벽과, 일정 길이의 강재로 이루어지며 결합공에 삽입된 결합화스너를 이용하여 보강 격벽과 단부 격벽 사이의 복부 상부의 양측면에 길이방향으로 결합되는 보강 빔을 포함하는 역T형 단면 혼합형 PSC거더가 제시된다.