This application claims priority from DE 10 2006 011 336.5-25, filed Mar. 9, 2006, which is incorporated by reference herein as if fully set forth.
The present invention relates to a construction element for heat insulation between two building parts, in particular between a ceiling or wall and a construction part protruding from said building, such as a balcony, at least comprising an insulating body and reinforcement elements crossing said insulating body and connected to each of the two construction parts, with tensile reinforcement elements being provided as reinforcement elements, at least arranged in an upper area and protruding particularly horizontally in reference to the insulating body and compression elements being provided arranged in the lower area of this insulating body.
In certain regions, construction elements for heat insulation are subject to strict regulations with regard to earthquake safety; here, the sufficiently known construction elements for heat insulation must be able to absorb additional dynamic stress, which requirement previously has been largely neglected and/or was not focused on. For example, if the construction element for heat insulation serves to support protruding balcony plates and is designed such that it can support its own weight and can absorb forces and momentums affecting the balcony plate from the outside, now forces and momentums acting in the opposite direction are added, for example such that the construction parts adjacent to the construction element are accelerated to a different degree by the vibrations of an earthquake and can be pulled apart, for example; or the protruding construction part is subjected to a force or momentum component acting vertically upward against the effective direction of the weight as a result of a tipping motion, which conventionally used compression rods in the lower insulating area and tensile rods in the upper insulating area cannot withstand alone.
Although it would be possible in an easy manner to drastically increase the number of reinforcement elements in the construction element for heat insulation and to arrange them at different positions so that each position affected by a force or momentum is provided with an appropriate reinforcement element; however, this would not only drastically increase the material expenses of such a construction element but also the heat insulation features would considerably worsen by the respectively enlarged cross-sectional area of the reinforcement elements extending between the two adjacent construction parts.
Therefore, the present invention is based on the object of providing a construction element for heat insulation of the type mentioned at the outset, which allows a targeted and only partially implemented increase of the number of reinforcement elements using conventional parts, and thus to avoid, on the one hand, a static and dynamic oversizing of the reinforcement elements and, on the other hand, an enlargement of the cross-sectional area of the reinforcement elements extending between the two adjacent construction parts compromising the heat insulation features.
The objective is attained according to the invention in that horizontally adjacent to the insulating body at least one additional insulating body is arranged, aligned therewith, that the additional insulating body in the area of its lower half is provided with additional tensile reinforcement elements for earthquake stress, which protrude in the horizontal direction in reference to the insulating body. By combining a conventional construction element for heat insulation with another insulating body equipped for earthquake stress, which is merely provided with additional tensile reinforcement elements in the lower part of the insulating body, the following advantages develop, in particular: the conventional construction elements for heat insulation are used, as in the past, to compensate for the normal static and dynamic stress; therefore, the additional insulating bodies, aligned adjacent therewith, have no influence on the size and composition of conventional construction elements for heat insulation, which facilitates the planning, sizing, and implementation of the combined construction element for heat insulation.
The aligned adjacent additional insulating body only needs the additional tensile reinforcement elements mentioned in order to allow the compensation of tensile forces developing during earthquakes in the lower area of the insulating body, which can not be compensated and/or transferred by the compression elements and lateral reinforcement rods conventionally present in this plane. Advantageously, the tensile reinforcement elements arranged in the conventional insulating body also act in case of an earthquake for transferring forces into the area of the upper half of the insulating body and/or for transferring lateral forces. Thus, except for the additional tensile force elements the additional insulating body needs no additional other reinforcement elements. Thus, it is apparent that the attached additional insulating body with the additional tensile reinforcement elements alone cannot provide and/or ensure sufficient function, neither for earthquake stress nor for normal stress, and that only together with the adjacent conventional construction elements for heat insulation can it fulfill its assigned tasks.
With regard to the additional tensile reinforcement element, it is usefully embodied in a rod-shaped manner known per se and protrudes beyond the additional insulating body in order to extend far into the adjacent construction parts and be appropriately well anchored in them.
The additional tensile elements may furthermore be provided, at least at the face end, with a plate-shaped force transfer profile, which extends particularly in a generally vertical plane parallel to the plane of the insulating body. This way, the necessary force introduction area is considerably shortened, which for example is advantageous when additional constructive parts, such as supports etc. are provided in the mounting area of the additional tensile reinforcement elements, into which the additional tensile reinforcement elements may not extend.
Therefore, the additional insulating body is provided with two additional tensile reinforcement elements arranged at a horizontal distance apart from each other. Thus, the additional insulating body is only provided with two additional tensile reinforcement elements, however, it is sufficiently sized to fulfill its intended tasks.
Horizontally adjacent to the additional insulating body, a second insulating body aligned thereto with integrated tensile and pressure reinforcement elements is arranged so that a constant row of conventional construction elements for heat insulation is only interrupted by a short section of an additional insulating body with only two additional tensile reinforcement elements, in particular.
Additional features and advantages of the present invention are discernible from the following description of an exemplary embodiment using the drawing. Shown are:
A construction element for heat insulation 1 according to the invention is shown in
Another insulating body 14 is arranged between the two conventional construction elements for heat insulation 2, extending in the vertical plane of the adjacent insulating body 12 flush thereto and being provided with tensile reinforcement elements 15 extending only in the lower area of the insulating body for compensating for earthquake stress, which extend parallel to the tensile reinforcement rods 4 of the conventional construction elements 2 but at a lower height plane.
From
As shown in
It is easily discernible that both the calculation and sizing is very easy when the construction elements for earthquake stress are not changed in their design in reference to conventional construction elements for heat insulation and that the assembly and/or implementation of these construction elements for earthquake stress can occur very easily such that after the assembly and/or implementation of the conventional construction elements for heat insulation a construction element for earthquake stress is added.
In summary, this results in the advantage that by simple means and a minimum of material, conventional construction elements for heat insulation can be retrofitted and/or complemented such that they are designed for earthquake stress, with the reinforcement elements according to the invention for conventional construction elements accept functions for earthquake stress which per se were to be accepted by the construction element, but which can, at least according to calculations, easily be distributed to the adjacent reinforcement elements of the conventional construction elements.
Number | Date | Country | Kind |
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102006011336.5-25 | Mar 2006 | DE | national |