Static structures (e.g. – buildings) – Multiroom or level – Curtain-wall; i.e. – panel attached outside floor or beam
Patent
1995-03-22
1998-08-04
Canfield, Robert
Static structures (e.g., buildings)
Multiroom or level
Curtain-wall; i.e., panel attached outside floor or beam
52200, 5250605, E04D 306, E06B 354, E04B 702, E04B 138
Patent
active
057876622
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a constructional element for large-area glazing of building structures, for example for waiting rooms, canopies, galleries, station concourses, exhibition halls and similar.
It has been shown that it is not possible to obtain fully satisfactory solutions with the already known fixing means.
The invention is based on the idea of applying the system with under-spanned girder known from general statics to large-area glass sheets made of laminated safety glass. At the same time, this principle should be capable of use for any arbitrary alignment of a large number of such glass sheets. However, this was not possible with the previously known fixing means.
The reason for this difficulty is that laminated safety glass sheets have to be provided with holes for the fixing means before they are produced by bonding two or more panes together, whereby experience shows that these holes are often not precisely aligned with each other after the panes have been bonded together. Also, tolerances cannot be avoided when the panes are drilled.
Furthermore, it is desirable to make the holes for the two panes or for the more than two panes of a laminated safety glass sheet slightly larger for the purpose of tolerance compensation.
If the known glass retaining elements were to be used to secure glass sheets of this kind, this could be realized only for small glass sheets and only in horizontal position. Large-area glass sheets made of laminated safety glass with an area of up to 15 m.sup.2 cannot be installed in such a way, and particularly not in inclined position, simply because of their size and weight.
SUMMARY OF THE INVENTION
It is the object of the invention to demonstrate a solution which permits large-area glazing of building structures with glass sheets made of laminated safety glass.
This is achieved by the invention through the characteristics of patent claim 1 in its entirety.
Other characteristics of the invention are described in the other claims. It must be noted that a constriction capable of withstanding tension and pressure loads in all parts, including the glass sheets, is obtained by using glass retaining elements which are anchored in holes in the glass sheets in a positive and non-positive way and which have rod anchoring devices attached to them, whereby the corresponding rods serve as under-spanning struts or support struts.
Even the under-spanning struts acting at an acute angle to the glass sheet are positively and non-positively connected with the glass sheet by way of the glass retaining elements in the new embodiment so that all forces resulting from pressure on the glass sheet or suction forces acting on the glass sheet can be absorbed, i.e. the support strut too is subjected to both tension and pressure loads.
The invention will now be described in greater detail on the basis of example embodiments in conjunction with the enclosed drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings,
FIG. 1 schematically shows the constructional element in accordance with the invention;
FIG. 1a, 1b and 1c show individual parts of this construction;
FIG. 2 shows a further example embodiment of the invention;
FIG. 3 shows a first embodiment form for fixing a glass retaining element on a glass sheet;
FIG. 4 shows a further embodiment form for fixing the glass retaining element on the glass sheet, and
FIG. 5 shows a different method of fixing a glass retaining element for a suspended glass sheet.
DETAILED DESCRIPTION OF THE INVENTION
The problem related to large-area and therefore heavy glass sheets made of laminated safety glass which sag as a result of their own weight will be explained first with reference to FIG. 1.
A large-area glass sheet 1 made of laminated safety glass is supported via a support strut 4 by two struts 2 spanned under the glass sheet. The under-spanning struts 2 are connected with the glass sheet 1 by glass retaining elements 5, whose actual embodiment will be explained in more detail later on.
An important feature is that the
REFERENCES:
patent: 4689928 (1987-09-01), Dutton et al.
patent: 5027567 (1991-07-01), Roberts
"cite des sciences et de l'industrie-naissance d'un monument", Alain Pelissier, Techniques & Architecture, vol. 364, 1986, Paris, p. 89.
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