Examinando por Autor "Cayatopa Calderon,Billy Alexis"
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Ítem Climatic Aggressiveness and Precipitation Concentration in a Peruvian Amazon Basin: Alto Huallaga Interbasin(Revista Politecnica, 2025-05-31) Piedra Tineo,José Luis; Cayatopa Calderon,Billy AlexisPrecipitation in the central Peruvian Amazon is characterized by being seasonal and with strong intensities during the first months of the year, leading to flooding and the subsequent collapse of the local infrastructure in provinces of San Martin, Huanuco, Pasco and La Libertad Regions of Peru, which are located within the delimitation of the Alto Huallaga Interbasin. Therefore, the objective of this research was to evaluate the climatic aggressiveness and concentration precipitation in the Amazon basin, applying three indices of aggressiveness and a precipitation concentration index (ICP), estimated from the precipitation record of the climatic stations in the study area. The results show a very high correlation between mean precipitation and altitude (R2 = 0.72) and with respect to the aggressiveness, the modified Fournier-Maule index (IFMM) was the one with the best correspondence with respect to altitude (R2 = 0.72) and mean precipitation (R2 = 0.98), however, the ICP shows moderate correlations with altitude (R2 = 0.21) and mean precipitation (R2 = 0.16). Likewise, the extreme values of the different indices were estimated for different return periods and a multiple linear regression model was developed to relate climatic aggressiveness and the ICP to estimate the mean precipitation (R2 = 0.99). Finally, it is concluded that, the Alto Huallaga Interbasin presents a very low climatic aggressiveness and the concentration of rain is moderately seasonal.Ítem Estimation of the Physical Progress of Work Using UAV and BIM in Construction Projects(Civil Engineering Journal, 2024-02-01) Piedra Tineo,José Luis; Cayatopa Calderon,Billy AlexisThe delay in the physical progress of construction creates additional costs, missed deadlines, and quality issues. The research aimed to estimate the physical progress of the project by using unmanned aerial vehicles (UAVs) and building information modeling (BIM). The methodology comprised capturing 848 high-resolution images of the Civil Engineering Laboratory construction site at the National University of Jaen, Cajamarca, Peru, using the Phantom 4 RTK drone. The photographs were processed using Agisoft 2.0.1 software, resulting in a point cloud. This was then imported into ReCap Pro 2023 software, which was used to assess the quality of the points. The Revit 2023 software was subsequently utilized to establish the phase parameters, linking the BIM model with the point cloud, filtering the model, and eventually exporting it to the Power BI 2023 software. The work's estimated progress utilizing the proposed methodology was 42.82%, which was not statistically significant compared to the Public Works Information System (INFOBRAS) of 43.14%. This allows for the automation of customary processes, the identification of crucial issues, and prompt decision-making. The study's originality lies in the suggestion of integrating aerial imagery with drones and BIM modeling for the real-time and precise estimation of work progression. This method provides a precise and effective substitute for traditional techniques for gauging the tangible advancement of projects.Ítem Incidencia del costo y tiempo aplicando la metodología building information modeling. caso de estudio: Institución Educativa 14641 Buenos Aires - Piura, 2023(Universidad Nacional de Jaén||Repositorio Institucional - UNJ, 2024-09-10) Perez Herrera,Nancy; Herrera Rojas,Rosalinda Heiser; Cayatopa Calderon,Billy Alexis; Palomino Ojeda,Jose ManuelLa presente investigación tuvo por finalidad determinar la incidencia del costo y tiempo aplicando la metodología Building Information Modeling en la Institución Educativa 14641 Buenos Aires - Piura, 2023. Fue de tipo básica, con enfoque cuantitativo y diseño descriptivo. Se tuvo como base el diseño elaborado de manera tradicional y a partir de ello se modeló con el software Revit Autodesk 2021; el costo y tiempo se determinó con el software Delphin Express. Obteniendo como resultado una variación en el costo y tiempo con la metodología BIM de S/ 856,521.67 y 37 días respectivamente en comparación de la metodología tradicional; por lo que se concluyó que la incidencia del costo es del 10.05% y tiempo 15.23% aplicando la metodología BIM.Ítem Sigmoidal Mathematical Models in the Planning and Control of Rigid Pavement Works(Applied Sciences, 2025-08-07) Piedra Tineo,José Luis; Cayatopa Calderon,Billy AlexisThe objective of the research was to use sigmoidal mathematical models for the planning and control of rigid pavement works. A dataset was constructed using 140 technical files, which were then analyzed to extract the valued work schedules. These schedules contained the variables time and cost per month. Subsequently, two groups were created from the dataset: a training group comprising 80% of the data and a test group comprising the remaining 20%. Subsequently, the variables were normalized and adjusted with the proposed logistic, Von Bertalanffy, and Gompertz models using Python 3.11.13. Following the implementation of training and validation procedures, the logistic model was identified as the optimal fit, as indicated by the following metrics: R2 = 0.9848, MSE = 0.0026, RMSE = 0.0506, and MAE = 0.0278. The implementation of the aforementioned model facilitates the establishment of an early warning system with a high degree of effectiveness. This system enables the evaluation of the discrepancy between the actual progress and the planned progress with an R2 greater than 98%, thereby serving as a robust instrument for the adjustment and revalidation of activities before and following their execution