Static structures (e.g. – buildings) – Multiroom or level – Curtain-wall; i.e. – panel attached outside floor or beam
Patent
1989-07-14
1990-12-04
Murtagh, John E.
Static structures (e.g., buildings)
Multiroom or level
Curtain-wall; i.e., panel attached outside floor or beam
522366, 52583, 52587, E04C 246
Patent
active
049743805
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention generally relates to framing for structural walls in multistory buildings, particularly facade walls. Particularly intended is a floor-carrying, column supported, concrete element which can be included in such framing.
SUMMARY OF THE INVENTION
The object of the invention is, inter alia, with immediate erection stability; implementation, even in an advanced stage of the project and; inner slabs and the insulation and cladding mounted on them.
In carrying out this object, the invention achieves
good material economy by utilizing steel columns and by the framing beams being utilized as both inner wall slabs and floor-carrying members;
vertical stabilization in the facade plane by ridged fixing of the columns to the framing beams;
shortened buckling length for the columns, particularly in the facade plane to about, or less than, half a story height and;
confinement of horizontal joints to the upper and under sides of the window opening bands, thus dispensing with the moisture problems in insulation layers, to which, according to experience, horizontal joints at the flooring level are subject in the building stage.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be more clearly understood by reading the following description, with reference to the accompanying drawings, in which
FIG. 1 is a schematic perspective view from the inside of a building during the building stage, utilizing the principles of the invention,
FIG. 1a is a fragmentary, enlarged detail of a joint which can be seen in FIG. 1,
FIG. 2 is a partially sectioned perspective view, to a larger scale, of a detail in one type of framing in accordance with the invention,
FIG. 2a illustrates an alternative detail implementation of a facade element bearing,
FIG. 3 illustrates, in a similar way, a detail of another type of framing in accordance with the invention,
FIG. 4 is a perspective view of a part of a facade element with column connections, and
FIG. 5 is a partially sectioned perspective view of a facade element in accordance with the invention with another form of column connection.
DESCRIPTION OF PREFERRED EMBODIMENTS
Floor-carrying framing or wall elements in accordance with the invention (preferably facade elements) have a substantially flat vertical outer surface, while their inner surfaces can be configured in different ways, inter alia according to the examples described below, preferably so that the lower part of the element is thickened to provide support for the flooring. Typical values for the ratio between the height of the facade element and its greatest width fall in the range of 1:5 to 1:8. The concrete facade elements must be provided with steel connection means anchored in the concrete for connection to the columns, and the examples illustrate a plurality of solutions for achieving this. It is important that the facade elements can be easily erected on the columns. A plurality of locating and bearing means is illustrated in the examples, for the purpose of giving immediate erection stability, which can then be supplemented by welding and/or injection joints.
FIG. 1 illustrates framing combined from facade elements 1, 2, 3 and steel columns 10, 11, 12, partly in a facade portion of a multistory building (to the left in the figure), and partly in an end wall portion (to the right in the figure) of the same building. The facade elements 1, 1', 1" in the facade have bearing surfaces 20 for prefabricated flooring elements 30, and the facade elements in the end wall portion of the building have a longitudinal recess at flooring level for connection to the flooring structure 30 for shear force transmission, this recess suitably being arranged with vertical indentations 21'. The facade elements can be arranged with thickened end portions 22 and/or with a single-sided inwardly facing upper flange 23 (see also FIG. 2). The facade elements 1, 1', 1" are made integrally and are defined in height by the window opening bands 40 in the stories above and below the flooring carried by the
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Bernander Karl G.
Lindberg Lars-Gunnar
Rise Gunnar
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