Bibliographic citations
Cornejo, L., Moreno, A. (2022). Comparación de las metodologías: Benedetti Petrini e Hirosawa para el análisis de la vulnerabilidad sísmica del edificio multifamiliar J2-2 de (05) niveles en el conjunto habitacional Monserrate V etapa - Trujillo [Tesis, Universidad Privada Antenor Orrego]. https://hdl.handle.net/20.500.12759/8615
Cornejo, L., Moreno, A. Comparación de las metodologías: Benedetti Petrini e Hirosawa para el análisis de la vulnerabilidad sísmica del edificio multifamiliar J2-2 de (05) niveles en el conjunto habitacional Monserrate V etapa - Trujillo [Tesis]. PE: Universidad Privada Antenor Orrego; 2022. https://hdl.handle.net/20.500.12759/8615
@misc{renati/1352709,
title = "Comparación de las metodologías: Benedetti Petrini e Hirosawa para el análisis de la vulnerabilidad sísmica del edificio multifamiliar J2-2 de (05) niveles en el conjunto habitacional Monserrate V etapa - Trujillo",
author = "Moreno Contreras, Ana Paula",
publisher = "Universidad Privada Antenor Orrego",
year = "2022"
}
The most harmful consequences of a physical phenomenon that affects a large scale is the earthquake, an event that eventually manifests itself on the surface and that a large number of edifications are not structurally optimal. The development of this project includes the study of Seismic Vulnerability in edifications whose function is to shelter a large number of families, thus, it was selected as a sample the Multifamily J2-2 Building with five levels in the Monserrate Housing Complex - V Stage in Trujillo, which is 25 years old and was built by Roaya Contratistas Generales S.A., under the supervision and summons of Empresa Nacional de Edificaciones (ENACE). There are various evaluation methods, they were chosen the most applied on a large scale and in urban areas, in order to know which will be the most accurate to define the Seismic Vulnerability of the building. The methods selected were Benedetti - Petrini and Hirosawa. To evaluate the selected methods, it is required basic information about the building, such as knowing the Compressive Strength of Concrete and a Soil Study, which allows defining the type of soil in the study area, and where both have the closest date to the present. Regarding to the measurements and distribution of spaces, Architecture Plans are required and, to know the dimensions and characteristics of the load-bearing elements, Structural Plans must be available. The Benedetti - Petrini method is made up of eleven parameters, which consider aspects such as plant and elevation configuration, type of foundation, quality and state of conservation, among others. The calculation of the Vulnerability Index (Iv) is developed by assigning a numerical value to the qualification coefficient Ki, according to the qualification range that corresponds depending on the building material, for masonry structures it considers four values (A, B, C, D) and for reinforced concrete three values (A, B, C,). The Ki value is affected by a Wi weight, which varies between 0.25 and 1.50 assigned to each parameter. The result provided by the Benedetti-Petrini method is a global value and qualifies the building from a Low Vulnerability to a High Vulnerability. By performing the analysis through this method, it was known that the J2-2 Multifamily Building with an Iv of 106.25 presents a Medium to Low Vulnerability (B). ix Hirosawa's method qualifies an structure as Safe or Unsafe according to its behavior before an earthquake. The evaluation consists of verifying the relationship that meet the Is and Iso indices, where the first focuses on the resistance of the building due to its rigidity, geometry and deterioration; while the second on the required seismic resistance of the building by its area, topographic conditions and use. Therefore, if the structure is designed with a resistance greater than the requested by the earthquake (Is> Iso), the building would be classified as safe, otherwise it would be unsafe. The result that Hirosawa's method provides is for each level and in both directions. When performing the evaluation using this method, it was found that the J2-2 Multifamily Building is Unsafe on levels 1, 2 and 3 in the x and y direction, but Safe on levels 4 and 5 in the x and y direction. The Linear Dynamic Analysis was carried out in order to determine which of the aforementioned methods is the most accurate, by means of structural modeling using the ETABS 2019 software. The results obtained and analyzed by this method were the drifts, which have a maximum value allowed according to the predominant material in the building, described under the Peruvian Technical Standard E.030, so, in our case, the building is maden of Confined Masonry and the maximum allowed value is 0.005. In the analysis of the third level in the x direction, the value is 0.00449, which represents 90% of the limit of the maximum allowed value, therefore the seismic behavior of the building would be very close to fail. After the preparation of the Sheets for the Evaluation of both methods in situ, the same that gather the necessary data and relevant aspects to develop each method, we can conclude that there is no exact methodology that brings us closer to a totally reliable reality, considering that the results obtained differ from each other, and the evaluation cannot be consolidated in order to qualify the vulnerability of the structure. Likewise, the methodology of the Benedetti Petrini Method is the most practical, since it requests easy-to-reach information, mostly visual, compared to the Hirosawa Method, which requires more elaborate calculations.
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