Life cycle optimization analysis of bridge sustainable development
- Autores: Zhiyu Zhou
- Directores de la Tesis: Víctor Yepes Piqueras (dir. tes.), Julián Alcalá González (dir. tes.)
- Lectura: En la Universitat Politècnica de València ( España ) en 2023
- Idioma: español
- Tribunal Calificador de la Tesis: Salvador Ivorra Chorro (presid.), José Vicente Martí Albiñana (secret.), Rasmus Rempling (voc.)
- Programa de doctorado: Programa de Doctorado en Infraestructuras de Transporte y Territorio por la Universitat Politècnica de València
- Materias:
- Enlaces
- Tesis en acceso abierto en: RiuNet
- Resumen
At the heart of the global construction industry is the overuse of materials, especially non-renewable fossil energy raw materials. In this research direction, many researchers and designers have significantly reduced the proportion of materials and minimized the amount of design within the scope of research ideas and design specifications. Given whether the above measures can effectively reduce materials, several questions need to be further studied: a) In which stages of the life cycle of building materials are consumed more? b) How to use the most compelling scientific method to reduce the consumption of materials at the stage where materials are used the most? c) How to scientifically complete the material consumption optimization evaluation in the design stage under the influence of overcoming many discrete events and external influencing factors? d) In the construction stage, how to optimize the project management process to the greatest extent and achieve the most excellent material saving to ensure quality, safety and cost? e) How much material can be saved through design and project management optimization? f) What are the ultimate impact of the above research theoretical system and analysis data on the sustainable development of the construction industry? Through the investigation of relevant publications on the whole life cycle of the construction industry (chapter 2), the thesis finds that the design and construction stages are the key to effectively reducing material consumption. The main goal of this thesis is to solve the proposed optimization problems. By establishing a multi-dimensional research model framework and a systematic project management optimization model, the thesis reduces the weight of various components of the statically indeterminate bridge structure and realizes the lightweight optimization of the bridge structure.
The thesis establishes several core theoretical innovation models in the research model framework: the bibliometric coupling model, ComplexPlot mathematical model; the multi-factor integral mathematical model; the multi-dimensional finite element micro and macro coupling optimization model, and the entropy weight method domino project management optimization evaluation model. The theoretical research system overcomes the interference of the research object's discreteness, complexity, and uncertain influencing factors and realizes the robustness of evaluation and improvement. It comprehensively improves the model's resistance to natural, human, accidental, and uncertain factors and the external interference problem of emergencies. Ultimately, the system formed a complete set of mature joint prevention and control optimization model systems and realized the research goals and paradigms.
The research value of this thesis: a) fills the research gap in this field. b) innovates a variety of new theoretical research models. c) solves the problems of discreteness, uncertainty, and external factor interference in topology optimization and project management optimization. Compensation and correction are made for the interference of external mutation factors and the sensitivity of emergencies. d) The research improves the Monte Carlo software analysis system's discrete data capture and compensation shortage.
In this thesis, various types of advanced project management methods and advanced construction schemes are applied in the case study, which provides a rich reference value for optimizing statically indeterminate bridges of the same type. For readers without extensive practical experience, there are some difficulties in understanding and applying the model. The reader needs to think carefully in combination with the case, which is also the insufficiency of this thesis.
