COMPOSITE STEEL- AND-REINFORCED CONCRETE GIRDER Russian patent published in 2004 - IPC

FIELD: building, particularly girder of bridge span.

SUBSTANCE: girder includes metal I-beam connected with monolithic reinforced concrete panel by rests thereof. Girder is composed of end and intermediate blocks along its height. Metal parts of intermediate and end block beams extend one towards another and have 3 embedded plates arranged at opposite end parts thereof and welded at an angle of 45-90^o to upper zone of metal beam parts. Metal beam parts are connected one to another by welding along lower zone, by metal insert welded to lower zone and to vertical walls of metal beam parts to be connected. Metal insert is welded to upper shoulders of metal beam parts and to vertical sheet inserts and secured to metal joint plates by upper edge thereof. Plates are welded to embedded plates of reinforced concrete panel of blocks to be connected by their ends, wherein joint plates are located along the remainder panel width and welded to embedded plates.

EFFECT: widened range of application, possibility of girder usage for wide spans and in difficult-to-access areas, simplified production of girders with polygonal shape in plane and contour.

4 dwg