Diseño de una vivienda popular de dos plantas sismo resistente con estructura metálica de ochenta metros cuadrados en la provincia de Chimborazo

Abstract

It was designed and modeled a popular gabled house in an earthquake-resistant metal structure of iron A36. Every 475 years with a probability of 2% per year earthquakes occur, frequent failures are column-beam connections. The NEC: DS 15 standard governs the entire process, design, and maintenance construction, the prerequisites: soil study, wind speed, seismic zone, and Richter scale 5 so that the structure remains in a plastic state, safeguarding the lives of its occupants. With a manual pre-design and considering the vertical loads like construction weight, occupational live loads, horizontal wind, and seismic loads by a factor of 1.6. With the resulting effort, Zx (plastic modulus) is obtained. A profile is preselected to be loaded in the Etab 16 program, verifying if it satisfies the required demand. The method used is the displacement-based method (DBD), which consists of replacing the entire structure in a state of maximum deformation by an elastic system with a maximum stress value, and viscous damping of 5%. In the modal analysis, the structure presents different silhouettes due to deformation according to the time and acceleration of the earthquake. The Ram connection checks the column-beam connections where the structures fail. In the results, drifts or ranges of stiffness, eccentricity (seismic damage due to torsion), radio demand, capacity, or resistance must be controlled. In the results, the preselected joist after modeling maintains the same profile, for the first-floor joists. In the columns, the thickness and dimensions are increased. Concluding that municipal regulations should be more rigid because it is in a very dangerous area. The recommendations are to reinforce the beam-column connections with rings, and put diagonals to stiffen.