Programa de Doctorat en Enginyeria de la Construcció: Recent submissions
Now showing items 101-120 of 154
Bioreceptivity optimisation of concrete substratum to stimulate biological colonisation
The lack of green areas in cities is caused by the increase in population and the urbanisation process. However, an increasing interest in city greenery was observed since the beginning of twentieth century. Several benefits ...
Construction control of cable-stayed bridges
This work presents a study of the simulation of cable-stayed bridges built on temporary supports focused on their response during construction and in service. To simulate the behavior during construction, a set of four ...
Mezclas ternarias de cemento Portland, cemento de aluminato de calcio y sulfato cálcico : mecanismos de expansión
Portland cement is the most widely used building material. Is mainly composed of silicates, also has lesser proportion of aluminates and calcium sulfate. Its hydraulic nature generates in its hydration, the formation of ...
Bi-layer diaphragm walls : experimental and numerical analysis
Leakage is a widespread problem associated with the construction of diaphragm walls whenever they are erected in water-bearing ground. The aim of the present research is to develop a new type of slurry wall: the bi-layer ...
Contributions to rework prevention in construction projects
Literature usually suggests that construction organization can reduce the costs derived from rework implementing quality management systems. Most common challenges and obstacles that construction organizations face during ...
Characterization and control of wet-mix sprayed concrete with accelerators
The development of the wet-mix system and the use of the sprayed concrete as a part of the new Austrian tunnelling method (NATM) marked an increase in the use and in the structural responsibility of the material, with ...
Optimización térmica y energética de la doble fachada acristalada con ventilación mecánica en clima mediterráneo
El diseño de edificios siguiendo criterios de sostenibilidad y eficiencia energética se ha convertido en un imperativo en los países desarrollados, sobre todo a raíz de la Directiva europea 2010/31/UE sobre Eficiencia ...
Resistencia a cortante de los forjados de vigueta pretensada y bovedilla
A pesar de que los forjados de vigueta pretensada y bovedilla se han utilizado desde los años 40 en prácticamente todo el mundo, los modelos que actualmente se utilizan para su cálculo frente al Estado Límite Último de ...
Nuevo proceso constructivo de viaductos con cimbra autolanzable y nueva secuencia evolutiva
Durante los últimos años se han venido realizando viaductos con cimbra autolanzable y una nueva secuencia evolutiva de la sección transversal. Esta nueva secuencia evolutiva consiste en alcanzar un esquema autoportante que ...
Estudio del efecto de la nauraleza del árido reciclado en la microestructura y propiedades de la zona de transición árido-pasta de cemento.
Hoy día está ampliamente reconocido que la estructura de la matriz de cemento en las proximidades de los áridos, es distinta a la del resto de la pasta, aunque dicha microestructura de la zona interfacial es variable en ...
Efectos de los esfuerzos cortantes biaxiales en la respuesta sísmica de columnas de hormigón armado
Durante un terremoto, las columnas de hormigón armado pueden verse sometidas a movimientos bidireccionales que pueden afectar su capacidad resistente y ductilidad. Sin embargo, las normas de diseño y evaluación sísmica no ...
Interacciones microorganismo-hormigón: métodos de evaluación y posibles soluciones
La interacción microorganismo–hormigón es un proceso que, debido a la naturaleza porosa del hormigón, lo hace susceptible de ser colonizado por los microorganismos presentes en prácticamente todos los hábitats. Esta ...
A model for the nonlinear, time-dependent and strengthening analysis of shear critical frame concrete structures
Nonlinear fibre beam models, due to its intrinsic simplicity and computational efficiency, are often an adequate alternative to the complex nonlinear plane and solid FE models for the assessment of entire frame structures. ...
Characterization and modelling of SFRC elements
The use of fibre reinforced concrete (FRC) as a construction material has expanded beyond the traditional applications since the publication of design codes and guidelines. In fact, the industry is demanding FRC with ...
Caracterización y diseño del homigón reforzado con fibras plásticas
En esta Tesis Doctoral se abordan aspectos de gran interés en relación a la caracterización del HRFP, la definición de una ecuación constitutiva considerando la orientación de las fibras, y el comportamiento diferido del ...
Análisis numérico de presas de hormigón bajo acciones expansivas
The main objective of this thesis is to study the mechanical behavior of a dam concrete under internal expansive phenomena in both the macro-structural and the meso-structural level. An important contribution of this work ...
Nueva metodología para el diseño de tubos de hormigón estructural
The technical and economic suitability of using fibers has been proved in reinforced concrete pipes.However, the use of fibers in concrete pipe is slow, on the one hand due to the inertia to change in the construction ...
Estudio experimental y numérico del fallo por inestabilidad de muros de obra de fábrica
A large part of the building stock of the Spanish and European cities consists of load-bearing wall buildings made of brick masonry. The structural safety of such constructions, in the occasion of a rehabilitation or a ...
El Rol físico del agua en mezclas de cemento Portland
Water is one of the fundamental components of concrete, not only for its role on the hydration of Portland cement, but also because of the physical functions it develops, which are associated with the main phases of concrete ...
Método para la evaluación de riesgos laborales en obras de construcción de grandes viaductos
A method for occupational risk assessment in construction sites is developed in this study. This method provides a system to perform exhaustive analysis of the situations that could result in serious accidents. The main ...
