Precast concrete frame structure PROTECTED FROM progressive collapse (OPTIONS), frame-and-beam ASSOCIATION crossbars reinforced concrete with pillars and crossbars ASSEMBLY ASSOCIATION WITH COLUMN

摘要

Technical solutions related to the construction prefabrication of reinforced concrete frame buildings of the industrial manufacture of products up to 8 floors, including in seismic regions.; An object of the present technology is the creation of the industrial prefabrication of the structural system of frame buildings to meet modern requirements, particularly on flights, loads, design and including requirements for the protection of frame buildings from the progressive collapse in emergencies due to redundancy strength load-bearing elements and construction joints. Technically, the task is achieved Precast the rack for buildings preferably up to 8 floors, including in seismic regions formed by columns, girders and panels overlap industrial manufacture, wherein the means of protection against progressive collapse under extreme loads in the case of emergencies are made for by redundancy strength load-bearing elements and construction joints as follows: - in the overlapping disk formed hollow-core slab , In the span between the bolts for joint work overlapping panels adjacent the disk panels overlap hardwired seams between panels overlap having on longitudinal end surfaces of the relief grooves and recesses to form therein at monolithing keys from a cement-sand mortar, fine concrete, preventing mutual displacement ceiling panels, and the supports on the crossbars due to the frame assembly bearing core floor panels on girders, resulting in seams between embedment having on laterally x faces recesses crossbars and resting on them paneling floors, having at a reference end surfaces voids to form therein at monolithing keys from a cement-sand mortar, fine concrete, preventing their mutual rotation and sensing the shear force on the load in case of emergency, and anchored in the joints between the panels overlap and welded to the upper girders nadopornoy armature disc overlap - in the overlapping disk formed by ribbed overlapping panels, in paragraph rolety between the crossbars due to bearing flanges overlap the panels on the edges of adjacent ceiling panels, and the supports on the crossbars due to the frame assembly bearing overlapping panels crossbars formed resulting welds the lower main reinforcement ribs panels overlap with shelves crossbars and upper priopornoy reinforcement ribs overlapping panels with bolts and interconnected by crossbars, wherein the frame assembly is formed with a fixed bearing capacity retention overlap panel pins, carrier loss ability panne if the overlap in the span in the case of emergencies, - and in frames carcass formed by crossbars and columns, the frame assembly combining crossbars with columns made reinforced concrete and the frame-beam method of loading and combining crossbars columns, where the frame assembly combining crossbars with columns and frame-beam method of loading and combining crossbars are aligned with columns and transiting the columns supporting moments crossbars and reinforced concrete frame assembly combining crossbars with columns made of a plastic sheet and / or roll steel and connections of plastic sheet and / or reinforcing steel lap bandpass welding where nonplastic welded joints on load capacity exceeds the bearing capacity of the plastic connectable element assembly located at maximum effort area in the frame, and has sposobnotyu development therein of plastic deformation under extreme loads in case of emergencies, including the ability to work in an elastic-plastic stage after loss of carrier bolt capacity in the span.