Análisis tecno económico entre galpones con cubiertas autoportantes y cubiertas a dos aguas con luces de 20 metros fabricadas en acero estructural

Abstract

The present research was developed with the objective of making a techno-economic analysis between sheds with self-supporting roofs and gable roofs with 20 m spans made of structural steel.

For the design of both structures, the live, dead, and seismic loads were determined according to the Ecuadorian Construction Standard NEC, to be later used in the different load combinations according to the design method with load factors and resistance LRFD. The load combinations were then applied to the frames through the SAP2000 program, obtaining the forces and reactions that interact with the structures, allowing the design of columns and beams according to the ANSI/AISC 360-16 Specification. Once the appropriate profiling and respective load combinations were entered, the structures were simulated to analyze and compare the vibration periods, maximum displacements, and mass shares according to the NEC. Once the design of the structures was concluded, the unit price analysis was carried out with their respective budgets. As a result, it was determined that the self-supporting roofed shed is less expensive and has a more stable behavior with respect to the gabled roofed shed.