The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 1976
Filed:
Apr. 03, 1974
Michael Simon, Munich, DT;
Abstract
Bending beam arrangement for use in supporting elevated trains and the like, and method of making same. The profile member beam is formed as a composite structure having steel profilemember and a concrete profile member connected thereto. The concrete profile member is disposed and configured so as to maximally absorb the compression forces experienced by the bending beam while minimizing the total cross sectional area of the concrete so that the overall weight of the bending beam is maintained at a minimal level. By absorbing the compressive forces on the composite beam and thereby preventing buckling of the steel beam, a thin walled steel beam construction can be utilized hence substantially only significant tensile forces need be accommodated thereby. Various preferred geometrical embodiments are included with means being provided in each embodiment to accommodate supporting and guiding of an elevational or suspended train vehicle for movement therealong. Several preferred embodiments include closed profile steel girders having the concrete profile girder disposed inside the hollow space formed thereby. Other preferred embodiments of open steel beam construction are also included. In one preferred embodiment two pipes of different sizes are arranged one inside the other to form the steel profile member with a hollow space formed between the two pipes being filled with concrete constituting the compressive reinforcing concrete girder. In this last-mentioned embodiment, a longitudinal slot through both pipes is provided at the contact surface thereof for accommodating suspension of a train vehicle. The hollow space inside of the inner tube or pipe accommodate guide wheels for the vehicle as well as driving mechanisms and other support equipment. The method of manufacturing preferred embodiments of the composite steel concrete beam include controlling the temperature of the concrete mixture during curing so as to prevent formation of stresses due to dimensional changes in the concrete during curing.