为了提高混凝土建筑物的结构性能,最常用的加固方法之一就是使用碳纤维布(Carbon Fiber Sheet, CFS)对其进行加固。近些年来,CFS在提高建筑物性能的研究十分丰富,CFS加固可以提高建筑物的结构性能。本文回顾了最近五年CFS对建筑产品性...为了提高混凝土建筑物的结构性能,最常用的加固方法之一就是使用碳纤维布(Carbon Fiber Sheet, CFS)对其进行加固。近些年来,CFS在提高建筑物性能的研究十分丰富,CFS加固可以提高建筑物的结构性能。本文回顾了最近五年CFS对建筑产品性能提上的提升,系统总结了CFS加固对混凝土梁、板、柱的抗震、抗压、抗弯、和耐火性能提升,本综述有助于提升科研人员及从业者了解掌握最新的CFS应用,并为以后潜在的研究方向以及应用提供思路。In order to improve the structural performance of concrete buildings, one of the most common reinforcement methods is to reinforce them with carbon fiber cloth. In recent years, the research on carbon fiber cloth in improving the performance of buildings is very rich, and carbon fiber cloth reinforcement can improve the structural performance of buildings. This paper reviews the last five years of carbon fiber cloth on the performance of building products, a systematic summary of carbon fiber cloth reinforcement of concrete beams, slabs, columns, seismic, compressive, flexural, and fire performance enhancement, this review helps to enhance the scientific researchers and practitioners to understand the grasp of the latest applications of carbon fiber cloth, and provide ideas for the future direction of the potential research as well as the application of ideas.展开更多
文摘为了提高混凝土建筑物的结构性能,最常用的加固方法之一就是使用碳纤维布(Carbon Fiber Sheet, CFS)对其进行加固。近些年来,CFS在提高建筑物性能的研究十分丰富,CFS加固可以提高建筑物的结构性能。本文回顾了最近五年CFS对建筑产品性能提上的提升,系统总结了CFS加固对混凝土梁、板、柱的抗震、抗压、抗弯、和耐火性能提升,本综述有助于提升科研人员及从业者了解掌握最新的CFS应用,并为以后潜在的研究方向以及应用提供思路。In order to improve the structural performance of concrete buildings, one of the most common reinforcement methods is to reinforce them with carbon fiber cloth. In recent years, the research on carbon fiber cloth in improving the performance of buildings is very rich, and carbon fiber cloth reinforcement can improve the structural performance of buildings. This paper reviews the last five years of carbon fiber cloth on the performance of building products, a systematic summary of carbon fiber cloth reinforcement of concrete beams, slabs, columns, seismic, compressive, flexural, and fire performance enhancement, this review helps to enhance the scientific researchers and practitioners to understand the grasp of the latest applications of carbon fiber cloth, and provide ideas for the future direction of the potential research as well as the application of ideas.
文摘研究了功能梯度石墨烯增强复合材料(Functionally Graded-Graphene-Platelets-Reinforced Composite,FG-GPLRC)旋转梁的非线性强迫振动。首先采用修正Halpin-Tsai微观力学模型和混合理论得到FG-GPLRC的有效弹性模量;考虑旋转效应并引入von Kar man几何非线性假设,基于Hamilton原理建立了FG-GPLRC旋转梁的运动控制方程。然后使用Galerkin法和多尺度法求得主共振响应的渐近解析解。最后通过数值分析讨论了石墨烯片(GPLs)含量、分布方式及几何性质对旋转梁强迫振动行为的影响。结果表明:填充GPLs能够同时提高梁的线性刚度和非线性刚度,但两者对共振响应的影响是相反的,在耦合作用下梁的共振响应随着GPLs质量分数的增大而减小;旋转运动造成的离心刚化效应增加了线性刚度但不能改变非线性刚度,从而使共振响应增大。