Mincigrucci Luca, Civera Marco, Lenticchia Erica, Ceravolo Rosario, Rosano Michele, Russo Salvatore
Department of Structural, Geotechnical and Building Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy.
School of Civil and Mechanical Engineering, Curtin University, Kent St., Bentley, WA 6102, Australia.
Materials (Basel). 2023 Jul 9;16(14):4908. doi: 10.3390/ma16144908.
Fibre-reinforced polymer composites in general, and especially glass fibre-reinforced polymer (GFRP), have increasingly been used in recent decades in construction. The advantages of GFRP as an alternative construction material are its high strength-to-weight ratio, corrosive resistance, high durability, and ease of installation. The main purpose of this study is to evaluate the response of GFRP under dynamic conditions (more specifically, under seismic loads) and to compare the performance of this composite material with that of two traditional building materials: reinforced concrete and structural steel. To this aim, a finite element analysis is carried out on a two-dimensional frame modelled with steel, reinforced concrete (RC), or GFRP pultruded materials and subjected to a seismic input. The dynamic response of the structure is evaluated for the three building materials in terms of displacements, inter-storey drift, base shear, and stress. The results show a good performance of the GFRP frame, with stress distribution and displacements halfway between those of RC and steel. Most importantly, the GFRP frame outperforms the other materials in terms of reduced weight and, thus, base shear (-40% compared to steel and -88.5% compared to RC).
一般而言，纤维增强聚合物复合材料，尤其是玻璃纤维增强聚合物（GFRP），在近几十年的建筑领域中得到了越来越广泛的应用。GFRP作为一种替代建筑材料的优点包括其高强度重量比、耐腐蚀性、高耐久性以及易于安装。本研究的主要目的是评估GFRP在动态条件下（更具体地说，在地震荷载下）的响应，并将这种复合材料的性能与两种传统建筑材料：钢筋混凝土和结构钢进行比较。为此，对一个用钢、钢筋混凝土（RC）或GFRP拉挤材料建模的二维框架进行了有限元分析，并使其承受地震输入。根据位移、层间位移角、基底剪力和应力评估了三种建筑材料结构的动力响应。结果表明GFRP框架具有良好的性能，其应力分布和位移介于RC和钢之间。最重要的是，GFRP框架在减轻重量方面优于其他材料，因此在基底剪力方面也更优（与钢相比减少40%，与RC相比减少88.5%）。
