Comparison of technical and economic indicators of monolithic buildings of wall and frame structural schemes in calculations for progressive collapse
Abstract
Comparison of technical and economic indicators of monolithic buildings of wall and frame structural schemes in calculations for progressive collapse
Incoming article date: 27.04.2020The calculation of a multi-storey monolithic building of a wall structural scheme for resistance to progressive collapse is considered. Calculations of the building were made for various operating conditions: normal and extreme (emergency impact — destruction of part of the load-bearing walls of the first floor). Recommendations are given for building protection in case of emergency impacts. It is determined that for buildings with a cross-wall system, the appropriate method of protection against progressive collapse is the method of reserving the strength of load-bearing elements. The increase in the cost of materials is about 2 %. Comparison of technical and economic indicators of buildings of wall and frame structural schemes showed that the cost of protection from progressive collapse of buildings with a wall structural scheme is significantly lower than that of frame
Keywords: progressive collapse, emergency impact, strength reservation, cross-wall design scheme, Lira-SAPR, building design model