Metodología para la rehabilitación de losas de pavimento rígido cuyo porcentaje de transferencia de carga, no cumple con las especificaciones mínimas exigidas por el Instituto de Desarrollo Urbano (IDU)

Abstract

This draft grade performs an analysis and study for the implementation of a methodology that increases load transfer, avoiding the demolition and reconstruction of the affected tiles. To reach the above was necessary to perform a compliance check of the initial results of transfer, where it was found that the percentage of load obtained in some slabs of rigid pavement, belonging to section 4 of the tenth race and section 5 of the street 26 in Bogotá, do not meet the required minimum standards (70%) by the Urban Development Institute (IDU). The rehabilitation process has made the inclusion of new transfer bars on the board of the two slabs affected. You need to know the distance design with the segments already built on slabs, and in this way to install the new bars in half that distance. Before carrying out the rehabilitation of the slabs, it is necessary to have the respective Traffic Management Plan, materials and equipment to be used and other recommendations are described throughout this project. To make improvements, three groups of slabs were formed to intervene depending on the percentage of transfer of initial charge: slabs transfer rate between 60% and 70%, between 50% and 60% and a final group with percentages between 0% fifty%. For the first group 3 bars of additional transfer were installed for the second 6 and for the third the maximum amount over the entire board can be installed outside. After further testing improving charge transfer were performed. Thrown results were analyzed and statistical studies showing increased charge transfer in all concrete slabs. Mainly it was possible to propose a methodology for rehabilitation with the installation of a number of transfer bars, depending on the percentage charge number you wish to continue to comply with the required standards. To perform a parallel between the proposed methodology and the demolition and reconstruction of the slabs of the study, budget execution tempos and comparisons were made. As a final result was obtained that the proposed methodology and described herein, it is not only optimal for increased load transfer slabs rigid pavement, but also their costs and runtimes are much more efficient to perform the demolition of affected slabs, previously used method.