Fostering the new generation of UHPFRC infrastructures in Canada: characterizing and modeling the effect of fibre orientation on the structural ductility

培育加拿大新一代 UHPFRC 基础设施:表征和模拟纤维取向对结构延展性的影响

基本信息

  • 批准号:
    435579-2012
  • 负责人:
  • 金额:
    $ 1.24万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Collaborative Research and Development Grants
  • 财政年份:
    2012
  • 资助国家:
    加拿大
  • 起止时间:
    2012-01-01 至 2013-12-31
  • 项目状态:
    已结题

项目摘要

While a large majority of concrete infrastructures in Quebec undergo to an advanced state of deterioration, it is now critical to consider the potentials of new composites for better designing the next infrastructure system in terms of material saving, longer life, reduced maintenance cost, faster construction and environmental friendliness. Among all the emerging composites, Ultra High Performance Concretes (UHPC) is becoming a truly breakthrough in civil engineering thanks to their outstanding properties. The driving force of UHPFRC is the structural ductility which has been achieved by means of the optimally designed fibre reinforcement. As a major consequence, ductility infers reduced crack widths and high durability. However, it was experimentally found that the remarkable ductility of UHPFRC structures can be completely lost when the fibres are mostly oriented in an unfavourable direction. The industrial implementation of UHPFRC is today limited by the lack of a reliable method which accounts for the effect of the fibre distribution. The project aims to develop a new model-based approach to foster innovative solutions of UHPFRC bridges by directly accounting for the fibres' mechanisms and distribution. The proposed research is based on a comprehensive approach which combines theory, experimental tests and computer simulation. The major research objective are: (i) to develop a new non-local damage model which can directly predict the ductility of UHPFRC structures from the fibre distribution; (ii) to provide a powerful engineering tool which can aid engineers to analyze UHPFRC structures; (iii) to provide a model-based reliability approach which will allow Canadian industries to engineer safe UHPFRC structures by mastering the uncertainty due to fibre distribution; (iv) to contribute to upgrade the first UHPFRC recommendation guidelines and to advance the harmonization with the Canadian Design Handbook. The value of the project results is to deep the current understanding of the role of fibre distribution in UHPFRC structures as well as to develop the needed tools and method to foster the implementation of UHPFRC in the next generation of Canadian infrastructure.
虽然魁北克的大部分混凝土基础设施都处于恶化状态,但现在必须考虑新复合材料的潜力,以便更好地设计下一个基础设施系统,节省材料,延长寿命,降低维护成本,加快施工速度和环境友好性。在所有新兴的复合材料中,超高性能混凝土(UHPC)由于其优异的性能而成为土木工程领域的真正突破。UHPFRC的驱动力是通过优化设计的纤维增强体实现的结构延性。作为一个主要的结果,延展性意味着减少裂缝宽度和高耐久性。然而,实验发现,当纤维主要沿不利方向取向时,UHPFRC结构的显著延性可能完全丧失。UHPFRC的工业实施目前受到缺乏可靠方法的限制,该方法考虑了纤维分布的影响。该项目旨在开发一种新的基于模型的方法,通过直接考虑纤维的机制和分布来促进UHPFRC桥梁的创新解决方案。所提出的研究是基于理论,实验测试和计算机模拟相结合的综合方法。主要的研究目标是:(i)开发一种新的非局部损伤模型,可以直接预测的纤维分布的UHPFRC结构的延性;(ii)提供一个强大的工程工具,可以帮助工程师分析UHPFRC结构;(iii)提供一个基于模型的可靠性方法,这将使加拿大工业工程安全UHPFRC结构,掌握由于纤维分布的不确定性;(iv)协助更新UHPFRC第一个建议准则,并促进与加拿大设计手册的协调。该项目结果的价值在于加深目前对纤维分布在UHPFRC结构中的作用的理解,并开发所需的工具和方法,以促进在加拿大下一代基础设施中实施UHPFRC。

项目成果

期刊论文数量(0)
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科研奖励数量(0)
会议论文数量(0)
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Sorelli, Luca其他文献

A new composite connector for timber-concrete composite structures
  • DOI:
    10.1016/j.conbuildmat.2016.02.025
  • 发表时间:
    2016-06-01
  • 期刊:
  • 影响因子:
    7.4
  • 作者:
    Auclair, Samuel C.;Sorelli, Luca;Salenikovich, Alexander
  • 通讯作者:
    Salenikovich, Alexander
The nano-mechanical signature of Ultra High Performance Concrete by statistical nanoindentation techniques
  • DOI:
    10.1016/j.cemconres.2008.09.002
  • 发表时间:
    2008-12-01
  • 期刊:
  • 影响因子:
    11.4
  • 作者:
    Sorelli, Luca;Constantinides, Georgios;Toutlemonde, Francois
  • 通讯作者:
    Toutlemonde, Francois
A modified accelerated chloride migration tests for UHPC and UHPFRC with PVA and steel fibers
  • DOI:
    10.1016/j.cemconres.2018.12.006
  • 发表时间:
    2019-03-01
  • 期刊:
  • 影响因子:
    11.4
  • 作者:
    Vincler, Juliano Provete;Sanchez, Thomas;Sorelli, Luca
  • 通讯作者:
    Sorelli, Luca
A Coupled Nanoindentation/SEM-EDS Study on Low Water/Cement Ratio Portland Cement Paste: Evidence for C-S-H/Ca(OH)2 Nanocomposites
  • DOI:
    10.1111/j.1551-2916.2009.03599.x
  • 发表时间:
    2010-05-01
  • 期刊:
  • 影响因子:
    3.9
  • 作者:
    Chen, Jeffrey J.;Sorelli, Luca;Chanvillard, Gilles
  • 通讯作者:
    Chanvillard, Gilles
Characterization of concrete composites with recycled plastic aggregates from postconsumer material streams
  • DOI:
    10.1016/j.conbuildmat.2018.06.083
  • 发表时间:
    2018-09-10
  • 期刊:
  • 影响因子:
    7.4
  • 作者:
    Jacob-Vaillancourt, Colin;Sorelli, Luca
  • 通讯作者:
    Sorelli, Luca

Sorelli, Luca的其他文献

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{{ truncateString('Sorelli, Luca', 18)}}的其他基金

Fostering Structural Health Monitoring of Existing Infrastructures by Coupling Damage Cluster Analysis and Scanning Laser Doppler Vibrometry
通过耦合损伤聚类分析和扫描激光多普勒测振法​​促进现有基础设施的结构健康监测
  • 批准号:
    RTI-2023-00249
  • 财政年份:
    2022
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Research Tools and Instruments
A new multi-scale approach to characterize concrete creep - Phase 2: drying effects, application to emerging concretes and micro-to-macro validation
表征混凝土徐变的新多尺度方法 - 第 2 阶段:干燥效果、新兴混凝土的应用和微观到宏观验证
  • 批准号:
    RGPIN-2022-05406
  • 财政年份:
    2022
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Discovery Grants Program - Individual
Development of prefabricated systems of electrically conductive concrete ECC with integrated sensors for intelligent city: pavements, cycle tracks and urban furniture
开发带有集成传感器的导电混凝土 ECC 预制系统,用于智能城市:人行道、自行车道和城市家具
  • 批准号:
    538322-2018
  • 财政年份:
    2021
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Collaborative Research and Development Grants
A new multi-scale approach to characterize concrete creep and its implications in long-term durability
一种新的多尺度方法来表征混凝土徐变及其对长期耐久性的影响
  • 批准号:
    RGPIN-2016-06077
  • 财政年份:
    2021
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Discovery Grants Program - Individual
Development of prefabricated systems of electrically conductive concrete ECC with integrated sensors for intelligent city: pavements, cycle tracks and urban furniture
开发带有集成传感器的导电混凝土 ECC 预制系统,用于智能城市:人行道、自行车道和城市家具
  • 批准号:
    538322-2018
  • 财政年份:
    2020
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Collaborative Research and Development Grants
A new multi-scale approach to characterize concrete creep and its implications in long-term durability
一种新的多尺度方法来表征混凝土徐变及其对长期耐久性的影响
  • 批准号:
    RGPIN-2016-06077
  • 财政年份:
    2020
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Discovery Grants Program - Individual
Development of prefabricated systems of electrically conductive concrete ECC with integrated sensors for intelligent city: pavements, cycle tracks and urban furniture
开发带有集成传感器的导电混凝土 ECC 预制系统,用于智能城市:人行道、自行车道和城市家具
  • 批准号:
    538322-2018
  • 财政年份:
    2019
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Collaborative Research and Development Grants
A new multi-scale approach to characterize concrete creep and its implications in long-term durability
一种新的多尺度方法来表征混凝土徐变及其对长期耐久性的影响
  • 批准号:
    RGPIN-2016-06077
  • 财政年份:
    2019
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Discovery Grants Program - Individual
A multi-scale approach to characterize and analyze the effect of temperature and pressure on the life well integrity of oil well cements
表征和分析温度和压力对油井水泥寿命井完整性影响的多尺度方法
  • 批准号:
    485320-2015
  • 财政年份:
    2018
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Collaborative Research and Development Grants
A new multi-scale approach to characterize concrete creep and its implications in long-term durability
一种新的多尺度方法来表征混凝土徐变及其对长期耐久性的影响
  • 批准号:
    RGPIN-2016-06077
  • 财政年份:
    2018
  • 资助金额:
    $ 1.24万
  • 项目类别:
    Discovery Grants Program - Individual

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