Engineering structures stability against progressive collapse

The calculating stability of an engineering structure against progressive collapse is considered in this article. calculations results are analyzed. A dangerous emergency scenario was developed and measures were to prevent the building structures local destruction accordance with regulatory documents requirements for such object. most design schemes assess collapse. case failure has been selected, a consistent action algorithm obtained that makes it possible perform calculation resistance collapse., kinematic method limit equilibrium theory elastic-plastic materials properties used calculate It corresponds turning system into plastic chain, links movement carried out due flow system's links. Two types undamaged identified collapse: neighbouring beams columns, which impact does not cause qualitative change stress state, but leads increase stresses forces (neighboring beams, columns); pavement slabs resting on beam welded through embedded parts lost its original support, located above fracture, state changes. conclusion made about should be met order conclude justification so can said ensured. established performed confirm object - drainage chamber as situations result.