Propuesta de peralte de losas postensadas como parte del sistema lateral para edificios altos con núcleo rígido

Published in: Industry, Innovation, and Infrastructure for Sustainable Cities and Communities: Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education and Technology
Date of Conference: July 24-26, 2019
Location of Conference: Montego Bay, Jamaica
Authors: Sebastian González (Universidad Peruana de Ciencias Aplicadas, PE)
Luis Herbozo (Universidad Peruana de Ciencias Aplicadas, PE)
Guillermo Huaco (Universidad Peruana de Ciencias Aplicadas, PE)
(Universidad Peruana de Ciencias Aplicadas)
Full Paper: #107

Abstract:

Post-tensioned slabs are likely used for construction of high rise building; however information related their participation within the lateral structural system to resist lateral forces such as those produced by the earthquake or the wind. In this work post-tensioned slabs are used in two directions as floor systems in high-rise buildings with rigid core such as structural walls in the center of the building. Those post-tensioned slabs were modified the gross moment of inertia (Ig) to study the seismic behavior of the tall buildings as well as the response of those slabs. This study is validated with several computational models of buildings, which the slab thickness is proposed in order to satisfy the maximum drifts of the tall buildings to meet Peruvian seismic provisions, varying the moments of inertia of these post-tensioned slabs. It also involves the modification of the compressive strength of concrete, f'c, of the slabs and vertical elements, as well as the thicknesses of structural walls. The result of this study is the obtaining of thickness of post-tensioned slab with respect to the variation of the capacity to compressive strength of concrete, distributed in the building, thickness of walls in rigid core and the percentage of cracked moment of inertia of the post-tensioned slabs. Effects of punching on posttensioned slabs were revised.