Hybrid harmony search for sustainable design of post-tensioned concrete box-girder pedestrian bridges

García-Segura, Tatiana; Piqueras, Víctor Yepes; Alcalà, Julián; Pérez-López, Eloy

doi:10.1016/j.engstruct.2015.03.015

Cited by 64 publications

(63 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, some studies [31,[33][34][35][36] stated that concrete can fix carbon through carbonation. Carbonation is the crucial decay of reinforced concrete bridges, and depends on three main factors [31]: the w/b ratio, the concentration of CO 2 in the surrounding air and specific climate conditions, and the depth of embedded steel.…”

Section: Maintenance and Usementioning

confidence: 99%

Life-Cycle Assessment: A Comparison between Two Optimal Post-Tensioned Concrete Box-Girder Road Bridges

et al. 2017

Self Cite

View full text Add to dashboard Cite

Abstract:The goal of sustainability involves a consensus among economic, environmental and social factors. Due to climate change, environmental concerns have increased in society. The construction sector is among the most active high environmental impact sectors. This paper proposes new features to consider a more detailed life-cycle assessment (LCA) of reinforced or pre-stressed concrete structures. Besides, this study carries out a comparison between two optimal post-tensioned concrete box-girder road bridges with different maintenance scenarios. ReCiPe method is used to carry out the life-cycle assessment. The midpoint approach shows a complete environmental profile with 18 impact categories. In practice, all the impact categories make their highest contribution in the manufacturing and use and maintenance stages. Afterwards, these two stages are analyzed to identify the process which makes the greatest contribution. In addition, the contribution of CO 2 fixation is taken into account, reducing the environmental impact in the use and maintenance and end of life stages. The endpoint approach shows more interpretable results, enabling an easier comparison between different stages and solutions. The results show the importance of considering the whole life-cycle, since a better design reduces the global environmental impact despite a higher environmental impact in the manufacturing stage.

show abstract

Section: Maintenance and Usementioning

confidence: 99%

Life-Cycle Assessment: A Comparison between Two Optimal Post-Tensioned Concrete Box-Girder Road Bridges

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Optimization methods allow for carrying-out of the decision-making of continuous criteria, where a set of valid solutions are obtained and represented on a Pareto front. Some authors carried out a single-objective optimization, in which the objectives are analyzed separately and then compared [68][69][70][71][72][73]. However, others prefer to apply a multi-objective optimization to get a Pareto set of solutions.…”

Section: Planning and Designmentioning

confidence: 99%

A Review of Multi-Criteria Decision-Making Methods Applied to the Sustainable Bridge Design

et al. 2016

Self Cite

View full text Add to dashboard Cite

Abstract:The construction of bridges has been necessary for societies since ancient times, when the communication between and within towns, cities or communities was established. Until recently, the economic factor has been the only one considered in the decision-making of any type of construction process for bridges. However, nowadays, the objective should not be just the construction of bridges, but of sustainable bridges. Economic, social and environmental factors, which form the three pillars of sustainability, have been recently added. These three factors usually have conflicting perspectives. The decision-making process allows the conversion of a judgment into a rational procedure to reach a compromise solution. The aim of this paper is to review different methods and sustainable criteria used for decision-making at each life-cycle phase of a bridge, from design to recycling or demolition. This paper examines 77 journal articles for which different methods have been used. The most used methods are briefly described. In addition, a statistical study was carried out on the Multiple Attribute Decision-making papers reviewed.

show abstract

“…Las competencias transversales, como es el caso del pensamiento crítico, pueden desarrollarse en las aulas a la vez que se trabajan otras competencias técnicas . Asimismo, se pueden utilizar metodologías activas como herramientas para concienciar a los alumnos de los nuevos retos que presenta la sostenibilidad (Pellicer et al 2016;Penadés-Plà et al 2016;García-Segura et al 2015). Este estudio analiza las herramientas y la metodología activa en Tatiana García-Segura, José V. Martí y Víctor Yepes 2017, Universitat Politècnica de València Congreso In-Red (2017 estudios de ingeniería, particularmente en la asignatura Tipologías y Procedimientos de las Construcciones de la Ingeniería Civil (I).…”

Section: Introductionunclassified

Valoración de las herramientas y metodologías activas en el Grado en Ingeniería de Obras Públicas

García-Segura¹,

Albiñana²,

Piqueras³

2017

Libro De Actas IN-RED 2017 - III Congreso Nacional De Innovación Educativa Y De Docencia en Red

Self Cite

View full text Add to dashboard Cite

show abstract

Hybrid harmony search for sustainable design of post-tensioned concrete box-girder pedestrian bridges

Cited by 64 publications

References 33 publications

Life-Cycle Assessment: A Comparison between Two Optimal Post-Tensioned Concrete Box-Girder Road Bridges

Life-Cycle Assessment: A Comparison between Two Optimal Post-Tensioned Concrete Box-Girder Road Bridges

A Review of Multi-Criteria Decision-Making Methods Applied to the Sustainable Bridge Design

Valoración de las herramientas y metodologías activas en el Grado en Ingeniería de Obras Públicas

Contact Info

Product

Resources

About