STAIRCASE Russian patent published in 2010 - IPC E04F11/00 

FIELD: construction.

SUBSTANCE: staircase comprises stair flights with certain number of steps separated by intermediate landings, and metal beams, onto which steps are laid across. Steps and intermediate landings are made of composite material and are coated from outside by polymer coating with mineral filler, intermediate landings have quadrangular shape, at the same time connection of steps and intermediate landings with beams is arranged through mechanical fixture, steps are joined to each other by means of various connection elements, and stair flights are connected to any of intermediate landings at any angle.

EFFECT: acceleration and reduction of construction and assembly cost, increased service life and reduced repair costs, arrangement of staircase with complex configuration in plan, including ramps for trolleys.

3 cl, 5 dwg