[EN] In this paper, the influence of steel fiber-reinforcement when designing precast-prestressed concrete (PPC) road bridges with a double U-shape cross-section is studied through heuristic optimization. A hybrid evolutionary ...

[EN] Bridges, as an important component of infrastructure, are expected to meet all the requirements for a modern society. Traditionally, the primary aim in bridge design has been to achieve the lowest cost while guaranteeing ...

[EN] Most of the definitions of sustainability include three basic pillars: economic, environmental, and social. The economic pillar has always been evaluated but not necessarily in the sense of economic sustainability. ...

[EN] Delays and cost overruns in the construction works are a global phenomenon, their appearance is so common that it has come to assert that they are an integral part of the projects. Despite of the numerous efforts ...

[EN] In Spain, it is common to solve the upper road steps using prestressed lightweight slab-type panels. Due to the number of structures of this type that are projected, it is of great interest to know how to apply a ...

[EN] In recent years there have been significant reforms at international level within public procurement, which have been the object of internal analysis in multilateral instances of foreign trade development, being ...

[EN] This paper deals with the cost optimization of road bridges consisting of concrete slabs prepared in situ and two precast-prestressed U-shaped beams of self-compacting concrete. It shows the efficiency of four heuristic ...

[ES] La industria de la construcción es una de las principales industrias en un país debido a su alto impacto económico. Sin embargo, esta industria tiene un riesgo elevado de incurrir en retrasos, sobrecostes y deficiencias ...

[EN] Pavement management systems can be used to efficiently allocate limited maintenance budgets to better align with pavement deterioration. However, pavement deterioration is subject to uncertain factors that complicate ...

[ES] El Trabajo de Fin de Máster estudia los retrasos, sobrecostes y los riesgos que los generan durante la fase de construcción de las carreteras vecinales en Perú. A partir de datos públicos obtenidos de la plataforma ...