Three-Dimensional FRP Reinforcements for Concrete

本项目的目的是对三维预制纤维增强塑料空间钢筋笼加固混凝土梁的性能和设计进行试验和理论研究。三维空间钢筋笼最方便地由拉挤格栅组件制造，将需要在制造、设计、建模、分析和建筑经济领域进行创新研究。根据最近进行的一项初步研究的结果，三维FRP加固梁似乎具有很大的结构潜力，因为它们能够以伪延性方式逐步破坏。它们似乎也具有巨大的建筑潜力，因为它们的预制工业化制造可以节省建筑成本，因为降低了劳动力成本。研究内容包括：新型一体化三维玻璃钢拉挤钢筋笼的研制、三维拉挤钢筋笼的力学性能表征、三维钢筋笼单元的优化、三维玻璃钢笼加固混凝土梁的设计与分析、三维玻璃钢笼的施工生产率和经济效益研究。

The objective of this project is to conduct an experimental and theoretical investigation into the behavior and design of concrete beams reinforced with three-dimensional (3-D) prefabricated fiber reinforced plastic spatial reinforcement cages. 3-D spatial reinforcement cages, most conveniently fabricated from pultruded grating components, will require innovative research in the areas of manufacturing, design, modeling, analysis and construction economics. Based on results of a recently conducted pilot study it appears that 3-D FRP reinforced beams have significant structural potential due to their ability to fail progressively in a pseudo-ductile manner. They also appear to have significant construction potential due to their prefabricated industrialized manufacturing that could yield construction cost saving because of reduced labor costs. The research will focus on the following items: Development of new integrated 3-D FRP pultruded reinforcement cages, characterization of mechanical properties of 3-D pultruded reinforcement cages, optimization of elements for 3-D reinforcement cages, design and analysis of concrete beams reinforced with 3-D FRP cages, and a study of the construction productivity and economic benefits of the use of 3-D FRP cages.