Propuesta de cálculo para entrepisos compuestos de hormigón y acero, con vigas de alma abierta para su aplicación en Ecuador

Abstract

The present project refers to a calculation proposal that is developed for composite floor with open web steel joist, for which are considered the materials available in Ecuador, the Ecuadorian Construction Normative (NEC) and foreign regulations. The equations to determine the nominal moment of the section are developed according to the type of compression slab; solid slab or steel deck, for the case of the slabs with steel deck, they are also considered in the analysis the direction of the ribs and the location of the neutral axis in the slab. Also, there are presented equations to check the limit state of service, the design of the shearing connectors and the design of the constituent elements of the composite beam web. Finally, its developed the analysis of special truss moment frames and three design examples, the first two of open web steel joist with solid compression slab and steel deck respectively, and the third example is developed the design of a structure with special truss moment frame with special Vierendeel type segment.