SECTION OF PEDESTRIAN UNDERPASS Russian patent published in 2013 - IPC E02D29/45 

FIELD: construction.

SUBSTANCE: section of a pedestrian underpass comprises a bearing shell of a double-row tunnel with pedestrian roads, and also a unit of bearing shell unloading from power stresses. The bearing shell of the double-row tunnel includes two metal pipes formed by cylindrical surfaces of rotation of identical radius, and the pipes are arranged in parallel to each other, and also includes a support concrete slab arranged in the lower part of metal pipes and rigidly connected to them, and this slab forms pedestrian roads in the lower part of metal pipes and is equipped with metal insulation on the upper section between metal pipes fixed to the latter. Side walls of the specified metal pipes of the bearing shell that face each other are each made at least with two openings communicating cavities of metal pipes between each other. The specified unit of the bearing shell unloading from power stresses includes concrete pylons with side walls, formed by cylindrical surfaces of rotation with curve equal to curve of metal pipes, arranged at the ends of the latter, and at least one concrete pylon in the middle part of metal pipes between the specified openings in their side walls and coupled with the latter, and also comprises an arched spacer metal belt formed by the cylindrical surface of rotation, arranged symmetrically at both sides between both metal pipes in their upper part and rigidly fixed by their longitudinal edges with side walls of both metal pipes. Concrete pylons are equipped with metal insulation coupled with their end walls and upper side walls and fixed to metal pipes, and are rigidly connected to the specified support concrete slab, the specified arched spacer metal belt and side walls of metal pipes, forming together with them a solid frame.

EFFECT: reduced material intensity and labour intensiveness of erection of a pedestrian underpass, reduction of time for its erection.

7 cl, 4 dwg