Damages caused by surcharge demand an extra investment of resources from the government for rehabilitation purposes, which could be saved if an improved and complementary road-weight control system might be implemented. The overloads increase has been detected by the National Institute of Roads Network (INVIAS) and Road Concessionaires by means of weighing control stations, static and mobiles, determining trucks overloads ranging from 1% to 10% by static weighing stations and, from 4% to 16% by mobile stations. One of the main reasons for such deterioration is overload caused by trucks travelling on trunk roads and cross roads of the network, which accelerates damage phenomena and considerably diminishes their durability. Keywords: Bridges, genetic algorithm, moving loads, instrumentation, monitoring, transit estimation, structural modelsīridges in the National Road Network of Colombia are the most important structures for the Country they are mainly old structures lacking of proper maintenance during their operating life and, consequently they are vulnerable to deterioration due to their current conditions. In addition, we developed a computational tool, able to represent with reasonable accuracy the moving loads. Model calibration was performed by mathematical approach of in-situ influence lines compared to those obtained by modeling, giving as outcome loads of moving trucks over the bridge. For such an effort, four girders were monitored by data acquisition electronics joined by an electronic traffic log device by lane accompanied of laboratory testing for materials.
Our research group developed a Genetic Algorithm based in a trial test, implementation and monitoring to the bridge called Boquerón of Colombian Highways (Bogota - Villavicencio). This research determines the axle loads of trucks traveling on a bridge located in one of the most important corridors of Colombia, using the technique of control BWIM (Bridge Weight in Motion), not used before in the country.
* Pontificia Universidad Javeriana de Colombia. Genetic algorithms and instrumentation determination of dynamic loads of heavy trucks over a bridgeĭeterminación de cargas dinámicas de camiones pesados que transitan en un puente basado en algoritmos genéticos e instrumentaciónĮdgar Muñoz* 1, David Gómez*, Federico Núñez** y Carlos Florez*