Análisis comparativo del comportamiento sísmico no lineal de una edificación de concreto armado con bases elásticas y el modelo NTP E.030 en Moquegua 2023

Cristhian Bladimir Ramos Quispe

doi:10.1590/SciELOPreprints.13465

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Cristhian Bladimir Ramos Quispe Cesar Vallejo University https://orcid.org/0009-0007-3938-8312

DOI:

https://doi.org/10.1590/SciELOPreprints.13465

Keywords:

Analysis, nonlinear, portal, seismic

Abstract

The present study focuses on a comparative analysis of the nonlinear seismic behavior of a reinforced concrete building with elastic bases and the NTP E.030 model. in the city of Moquegua with the intention of comparing the results of the nonlinear seismicanalysis and measuring the influence with respect to the rigid base model; For this, I consider as a sample a 5-level building with a structural system mainly of reinforced concrete frames with a combined footing foundation sitting on an S2 soil. The methodology used in this study is applied, non-experimental and descriptive. Comparative studies between the Peruvian technical standard NTP E.030 and the analysis with elastic bases reveal significant discrepancies in several key aspects of the seismic behavior of reinforced concrete structures. Firstly, the vibration periods show substantial increases with the use of elastic bases, indicating longer periods in the three main vibration modes, which directly influences the dynamic behavior and seismic response of the building. Structural displacements also differ notably, with significant increases in both directions (X and Y) when the analysis with elastic bases is applied, highlighting increases of up to 512% in certain locations. Furthermore, the shear forcesand bending moments exhibit considerable variations, showing both increases and decreases depending on the direction and location in the structure. On the other hand, nonlinear analysis of buildings reveals much larger displacements and loads compared to the NTP E.030 standard, underscoring the need for advanced methodologies to accurately evaluate structural behavior against severe seismic loads. These findings reinforce the importance of updating seismic design regulations to include more sophisticated approaches that can optimize the structural safety and resilience of buildings in seismically active areas.

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Author Biography

Cristhian Bladimir Ramos Quispe, Cesar Vallejo University

Cristhian Bladimir Ramos Quispe is a Civil Engineer with professional experience in regional, provincial, and district governments, as well as in private companies, leading projects in infrastructure, territorial planning, and urban management. He is accredited by the National Superintendence of State Assets (SBN) as a specialist in legal and physical land sanitation, with strong expertise in state property management and regularization. He is the founder and driving force behind Aullidos de Esperanza, a non-profit initiative that engages youth in social assistance and community management, combining social support with value-based training. He is also actively involved in parish activities as a catechist and coordinator. His main areas of interest include civil engineering for social impact, territorial planning, public property management, and community development.