Citas bibligráficas
Aguilar, J., (2023). Análisis económico de pavimentos rígidos diseñados con geometría optimizada y método AASHTO 93 para evaluación de alternativas, provincia de Lima [Tesis, Universidad Nacional de Ingeniería]. http://hdl.handle.net/20.500.14076/27647
Aguilar, J., Análisis económico de pavimentos rígidos diseñados con geometría optimizada y método AASHTO 93 para evaluación de alternativas, provincia de Lima [Tesis]. PE: Universidad Nacional de Ingeniería; 2023. http://hdl.handle.net/20.500.14076/27647
@misc{renati/1752019,
title = "Análisis económico de pavimentos rígidos diseñados con geometría optimizada y método AASHTO 93 para evaluación de alternativas, provincia de Lima",
author = "Aguilar Medina, Josue Joseph",
publisher = "Universidad Nacional de Ingeniería",
year = "2023"
}
The road infrastructure connects the most remote places with cities, thus allowing the boost of the economy and the development of the country with the import and export of local products, so not having roads that connect regions would affect the development and growth of the country. . At present, most of the districts of the province of Lima are faced with the reality that their pavements present regular to poor serviceability conditions, which generates new problems such as: increase in travel time, contamination due to the presence of dust and accumulation of puddles of water due to cracking and erosion generated in the pavements. The great length of the slabs that are obtained with the rigid pavement design methodology by AASHTO 93 (traditional method in Peru), considering that the greater the dimension of a slab, the greater the number of axes it will receive, so it will have greater tensions and therefore generate greater thicknesses to be able to resist these tensions. Being thicker causes high construction costs and a greater amount of resources used. Therefore, in the present research project, being the methodology of optimized rigid pavements (TCP) an alternative to reduce costs in a sustainable way, concrete pavements designed with optimized geometry and by the AASHTO 93 method were evaluated in the province of Lime. A matrix of technically equivalent models was made. This matrix considers equivalent designs based on two parameters: traffic and soil. The design of pavements with optimized geometry was carried out using the Optipave 2.0 program and the design by AASHTO 93 took into account the Manual of Highways, Soils, Geology, Geotechnics and Pavements. Using the AASHTO 93 method, two designs were made for each situation, varying the load transfer parameter (J), a design was made considering pins (J=2.8) and another design not considering pins (J=3.8). Based on the results of the designs, an economic analysis was carried out for each situation, concluding that rigid pavements designed with optimized geometry are technically and economically optimal compared to rigid pavements designed by AASHTO93, achieving savings of 13.2% to 40.2%. From the direct cost which depends on the level of traffic and the quality of the road soil applicable to the province of Lima, the greater the number of equivalent axes, the difference between the cost for both design methodologies tends to increase and therefore increase the savings when using rigid pavements designed with optimized geometry, in the same way, a higher value of the CBR of the subgrade tends to increase the savings when using rigid pavements designed with optimized geometry. In the design of rigid pavements designed with optimized geometry, thicknesses between 12 cm to 17 cm were obtained, on the other hand, when using rigid pavements designed by the AASHTO 93 methodology, thicknesses between 16 cm to 29 cm were obtained considering dowels (J=2.8) and obtained thicknesses between 19 cm and 33 cm without considering dowels (J=3.8). Therefore, it was possible to reduce the thickness of the slab in a range of 3 to 18 cm by using rigid pavements designed with optimized geometry.
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