Now showing items 21-40 of 74
Segura-Castillo, Luis (Date of defense: 2013-11-22)
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 ...
Macarulla Martí, Marcel (Date of defense: 2013-12-17)
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 ...
Galobardes Reyes, Isaac (Date of defense: 2013-11-22)
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 ...
Cuerva Contreras, Eva (Date of defense: 2013-11-04)
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 ...
Ribas Gonzalez, Carlos R. (Date of defense: 2013-12-09)
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 ...
Díaz de Terán López, José Ramón (Date of defense: 2013-09-12)
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 ...
Sidorova, Anna (Date of defense: 2013-07-24)
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 ...
Osorio Bustamante, Edison (Date of defense: 2012-12-14)
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 ...
Vaquero Martínez, José M. (Date of defense: 2013-02-22)
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 ...
Ferreira, Denise Carina Santos (Date of defense: 2013-03-22)
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. ...
Blanco, Ana (Date of defense: 2013-03-20)
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 ...
Pujadas, Pablo (Date of defense: 2013-03-22)
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 ...
Moura, André Campos de (Date of defense: 2012-11-23)
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 ...
Fuente Antequera, Albert de la . (Date of defense: 2011-10-14)
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 ...
Sandoval Mandujano, Cristián Eliseo (Date of defense: 2011-05-27)
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 ...
Soares Klein, Nayara (Date of defense: 2012-10-26)
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 ...
Claudino Véras, Juliana (Date of defense: 2012-10-19)
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 ...
Valenzuela Saavedra, Matías Andrés (Date of defense: 2012-03-23)
Según estudios estadísticos a nivel mundial, una de las principales causas de fallos en puentes corresponde a problemas relacionados con la interacción entre estructura e hidráulica produciendo altos costos humanos y ...
Contreras López, Catalina del Pilar (Date of defense: 2012-03-23)
The box-girder is currently the solution for large prestressed concrete bridges, being most used today in steel and mixed structures. Their widespread use is due to the strength characteristics and versatility, using various ...
Arnau Delgado, Oriol (Date of defense: 2012-03-16)
The increasing use of the tunnel boring machines (TBMs) has entailed their own evolution and the improvement of the construction processes applied, allowing the construction of tunnels on more complex hydro-geological ...