Yepes-Bellver Lorena, Brun-Izquierdo Alejandro, Alcalá Julián, Yepes Víctor
Mechanics of Continuous Media and Theory of Structures Department, Universitat Politècnica de València, 46022 Valencia, Spain.
School of Civil Engineering, Universitat Politècnica de València, 46022 Valencia, Spain.
Materials (Basel). 2023 Oct 19;16(20):6767. doi: 10.3390/ma16206767.
This study aims to establish a methodology for optimizing embodied energy while constructing lightened road flyovers. A cross-sectional analysis is conducted to determine design parameters through an exhaustive literature review. Based on this analysis, key design variables that can enhance the energy efficiency of the slab are identified. The methodology is divided into two phases: a statistical technique known as Latin Hypercube Sampling is initially employed to sample deck variables and create a response surface; subsequently, the response surface is fine-tuned through a Kriging-based optimization model. Consequently, a methodology has been developed that reduces the energy cost of constructing lightened slab bridge decks. Recommendations to improve energy efficiency include employing high slenderness ratios (approximately 1/28), minimizing concrete and active reinforcement usage, and increasing the amount of passive reinforcement.
本研究旨在建立一种在建造轻型公路立交桥时优化隐含能源的方法。通过详尽的文献综述进行横断面分析，以确定设计参数。基于该分析，确定了可提高平板能源效率的关键设计变量。该方法分为两个阶段：首先采用一种称为拉丁超立方抽样的统计技术对桥面变量进行抽样并创建响应面；随后，通过基于克里金法的优化模型对响应面进行微调。因此，已开发出一种降低建造轻型平板桥面板能源成本的方法。提高能源效率的建议包括采用高长细比（约1/28）、尽量减少混凝土和活性钢筋的用量以及增加被动钢筋的用量。
