Advances in Analysis and Design of Slender Concrete Columns Reinforced with Fiber-Reinforced Polymer Composites

纤维增强聚合物复合材料加固细长混凝土柱分析与设计进展

基本信息

  • 批准号:
    RGPIN-2021-02429
  • 负责人:
  • 金额:
    $ 2.26万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2022
  • 资助国家:
    加拿大
  • 起止时间:
    2022-01-01 至 2023-12-31
  • 项目状态:
    已结题

项目摘要

In the past three decades fiber-reinforced polymer (FRP) composites have emerged in structural engineering with superior characteristics for the strengthening of existing structures and the construction of new systems. The use of FRPs in short concrete columns have been extensively investigated and the outcomes have been translated into design guidelines and codes for practicing engineers. However, the performance of long (slender) concrete columns with significant lateral (second-order) deformations induced by axial compression loading and consequence buckling failure have not been investigated with required depth and breadth to establish a comprehensive data platform for the development of reliable design equations and procedures. The applicant has contributed to the field of slender columns in the past five years and is ready to take the research to the next level creating a significant advancement in the field. As Canada Research Chair (Tier 2) in Sustainable Infrastructure, the application has also acquired a state-of-the-art CFI equipment and built a unique horizontal test setup to test a variety of slender columns. The test setup can accept a broad range of slender columns (virtually up to 15 m long) and different cross-sectional geometries. In this research program, large-scale slender columns will be under out of axis (eccentric) axial compression loading. The following parameters will be considered: (1) internal and external reinforcement systems in forms of FRP bars, laminates, tubes an shells; (2) shape of cross-section including rectangular and circular sections; (3) slenderness ratio; (4) load eccentricity; (5) reinforcement ratio; and (6) FRP strength and modulus. The research program will also include a comprehensive theoretical study based on the second-order deformations considering a broad range of cross sections, boundary conditions, material properties, and FRP systems. The theoretical study will be verified against the experimental study to perform a comprehensive parametric study. The parametric study will be geared toward creation of large data platform for statistical and reliability-based analyses to propose reliable design equations and procedures to fill the gaps of current CSA design codes for manufacturers and practicing engineers. The research program will also provide a strong platform for training highly qualified personnel skilled in advanced technologies. The outcomes of the research program not only will serve to elevate Canada to a leadership position in the area of slender columns and associated advanced technologies, but also will seek innovative and sustainable solutions for the country's deteriorated infrastructure, such as bridges and water front structures with slender columns.
在过去的三十年中,纤维增强聚合物(FRP)复合材料在结构工程中出现,具有用于加固现有结构和建造新系统的优异特性。 FRP 在短混凝土柱中的使用已得到广泛研究,研究结果已转化为执业工程师的设计指南和规范。然而,对于由轴向压缩载荷引起的显着横向(二阶)变形和随之而来的屈曲破坏的长(细长)混凝土柱的性能尚未进行所需深度和广度的研究,以建立用于开发可靠设计的综合数据平台方程和程序。申请人在过去五年中为细长柱领域做出了贡献,并准备将研究提升到一个新的水平,从而在该领域取得重大进展。作为加拿大可持续基础设施研究主席(第 2 级),该应用程序还购买了最先进的 CFI 设备,并构建了独特的水平测试装置来测试各种细长柱。该测试装置可接受各种细长柱(实际上长达 15 m)和不同的横截面几何形状。 在本研究项目中,大型细长柱将承受离轴(偏心)轴向压缩载荷。将考虑以下参数: (1) FRP 棒、层压板、管和壳形式的内部和外部加固系统; (2)截面形状,包括矩形截面和圆形截面; (3)长细比; (4)载荷偏心度; (5)配筋率; (6)玻璃钢强度和模量。该研究计划还将包括基于二阶变形的综合理论研究,考虑广泛的横截面、边界条件、材料特性和 FRP 系统。理论研究将根据实验研究进行验证,以进行全面的参数研究。参数化研究将致力于创建用于统计和基于可靠性的分析的大数据平台,以提出可靠的设计方程和程序,以填补制造商和执业工程师当前 CSA 设计规范的空白。该研究项目还将为培养掌握先进技术的高素质人才提供强大的平台。该研究计划的成果不仅将有助于提升加拿大在细长柱和相关先进技术领域的领导地位,还将为该国日益恶化的基础设施寻求创新和可持续的解决方案,例如桥梁和滨水结构细长的柱子。

项目成果

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Sadeghian, Pedram其他文献

New mechanics-based confinement model and stress-strain relationship for analysis and design of concrete columns wrapped with FRP composites
  • DOI:
    10.1016/j.istruc.2021.06.012
  • 发表时间:
    2021-06-18
  • 期刊:
  • 影响因子:
    4.1
  • 作者:
    Khorramian, Koosha;Sadeghian, Pedram
  • 通讯作者:
    Sadeghian, Pedram
Enhancing the interface friction between glass fiber-reinforced polymer sheets and sandy soils through sand coating
Experimental and analytical investigations of the flexural behavior of hollow ±55° filament wound GFRP tubes
  • DOI:
    10.1016/j.tws.2020.107246
  • 发表时间:
    2021-01-18
  • 期刊:
  • 影响因子:
    6.4
  • 作者:
    Betts, Dillon;Sadeghian, Pedram;Fam, Amir
  • 通讯作者:
    Fam, Amir
Experimental and analytical behavior of short concrete columns reinforced with GFRP bars under eccentric loading
  • DOI:
    10.1016/j.engstruct.2017.08.064
  • 发表时间:
    2017-11-15
  • 期刊:
  • 影响因子:
    5.5
  • 作者:
    Khorramian, Koosha;Sadeghian, Pedram
  • 通讯作者:
    Sadeghian, Pedram
Strengthening Slender Reinforced Concrete Columns Using High-Modulus Bonded Longitudinal Reinforcement for Buckling Control
  • DOI:
    10.1061/(asce)st.1943-541x.0001066
  • 发表时间:
    2015-04-01
  • 期刊:
  • 影响因子:
    4.1
  • 作者:
    Sadeghian, Pedram;Fam, Amir
  • 通讯作者:
    Fam, Amir

Sadeghian, Pedram的其他文献

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{{ truncateString('Sadeghian, Pedram', 18)}}的其他基金

Sustainable Infrastructure
可持续基础设施
  • 批准号:
    CRC-2019-00324
  • 财政年份:
    2022
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Canada Research Chairs
Advances in Analysis and Design of Slender Concrete Columns Reinforced with Fiber-Reinforced Polymer Composites
纤维增强聚合物复合材料加固细长混凝土柱分析与设计进展
  • 批准号:
    RGPIN-2021-02429
  • 财政年份:
    2021
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Discovery Grants Program - Individual
Sustainable Infrastructure
可持续基础设施
  • 批准号:
    CRC-2019-00324
  • 财政年份:
    2021
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Canada Research Chairs
Sustainable Infrastructure
可持续基础设施
  • 批准号:
    1000230593-2014
  • 财政年份:
    2020
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Canada Research Chairs
FRP-Strengthening of Slender Reinforced Concrete Columns
FRP-细长钢筋混凝土柱的加固
  • 批准号:
    RGPIN-2016-03963
  • 财政年份:
    2020
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Discovery Grants Program - Individual
Sustainable Infrastructure
可持续基础设施
  • 批准号:
    1000232837-2019
  • 财政年份:
    2020
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Canada Research Chairs
FRP-Strengthening of Slender Reinforced Concrete Columns
FRP-细长钢筋混凝土柱的加固
  • 批准号:
    RGPIN-2016-03963
  • 财政年份:
    2019
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Discovery Grants Program - Individual
Sustainable Infrastructure
可持续基础设施
  • 批准号:
    1000230593-2014
  • 财政年份:
    2019
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Canada Research Chairs
FRP-Strengthening of Slender Reinforced Concrete Columns
FRP-细长钢筋混凝土柱的加固
  • 批准号:
    RGPIN-2016-03963
  • 财政年份:
    2018
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Discovery Grants Program - Individual
Sustainable Infrastructure
可持续基础设施
  • 批准号:
    1000230593-2014
  • 财政年份:
    2018
  • 资助金额:
    $ 2.26万
  • 项目类别:
    Canada Research Chairs

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