Durability Testing and Reliability Analysis of Connections in Lightweight Metal Structures
轻质金属结构连接的耐久性测试和可靠性分析
基本信息
- 批准号:RGPIN-2017-03926
- 负责人:
- 金额:$ 2.48万
- 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:2020
- 资助国家:加拿大
- 起止时间:2020-01-01 至 2021-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In the design of civil infrastructure, such as buildings and bridges, aesthetics and sustainability considerations such as reducing user delay costs and long term environmental impacts are increasingly leading designers to consider the use of lightweight metal structures. With a modest increase in material cost, significant benefits can be realized through the use of more durable alloys and lightweight modular solutions that allow for longer service lives, a higher degree of prefabrication, reduced transportation and installation costs, and significantly reduced build times. These materials also lend themselves particularly well to “design for deconstruction” (DfD) an emerging concept, which involves careful consideration at the design stage, largely through the material selection and connection design, of how a structure can be more easily taken apart at the end of its service life to facilitate higher rates of reuse. In order to ensure that the highest potential is achieved in terms of the sustainability and societal benefit offered by lightweight metal structures, fundamental research is needed to develop more durable and reliable connection concepts for these structures.
Against this background, the current proposal describes pioneering research aimed at increasing the state-of-knowledge and developing improved design rules and performance characteristics for the following connection types: i) slip-resistant bolted connections in modular metal structures, ii) cables at the saddle supports in cable-supported structures, and iii) friction-stir welded (FSW) joints in lightweight aluminum bridge deck panels. In each project, graduate students will employ similar research tools, including: durability testing, finite element (FE) modelling, non-linear fracture mechanics, and risk and reliability analysis. This research will investigate complex phenomena, which experts are still struggling to fully understand and accurately model, including: corrosion, wear, fretting fatigue, and variable amplitude (VA) loading effects on fatigue behaviour. The planned experiments will validate analytical models, which will be used to investigate ways of improving connection performance through material selection, geometric design, and surface enhancement by various means.
It is expected that this timely research will lead to an improved understanding of the broader fundamentals of connection behaviour and the proposal of new and innovative connection concepts, which will eventually be adopted in standards and change the way that we design new buildings and bridges. The high quality personnel (HQP) trained through this research will be highly sought after by the Canadian construction sector, where they will take on leadership roles, due to the specialized knowledge they will acquire in durability assessment, reliability analysis, and sustainable infrastructure design.
在民用基础设施(如建筑物和桥梁)的设计中,美学和可持续性考虑(如减少用户延迟成本和长期环境影响)越来越多地引导设计师考虑使用轻质金属结构。随着材料成本的适度增加,通过使用更耐用的合金和轻质模块化解决方案,可以实现更长的使用寿命,更高程度的预制,减少运输和安装成本,并显着缩短建造时间,从而实现显着的效益。这些材料也特别适合“解构设计”(DfD),这是一个新兴的概念,它涉及到在设计阶段的仔细考虑,主要是通过材料选择和连接设计,如何在其使用寿命结束时更容易地将结构拆开,以促进更高的重复利用率。为了确保轻质金属结构在可持续性和社会效益方面发挥最大潜力,需要进行基础研究,为这些结构开发更耐用和可靠的连接概念。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Walbridge, Scott其他文献
Pipe spool recognition in cluttered point clouds using a curvature-based shape descriptor
- DOI:
10.1016/j.autcon.2016.08.011 - 发表时间:
2016-11-01 - 期刊:
- 影响因子:10.3
- 作者:
Czerniawski, Thomas;Nahangi, Mohammad;Walbridge, Scott - 通讯作者:
Walbridge, Scott
A methodology for evaluating the effects of spalling on the structural capacity of reinforced concrete bridge girders
- DOI:
10.1139/cjce-2011-0263 - 发表时间:
2014-03-01 - 期刊:
- 影响因子:1.4
- 作者:
Luckai, Jeffrey;Polak, Maria Anna;Walbridge, Scott - 通讯作者:
Walbridge, Scott
Pipe radius estimation using Kinect range cameras
- DOI:
10.1016/j.autcon.2018.12.015 - 发表时间:
2019-03-01 - 期刊:
- 影响因子:10.3
- 作者:
Nahangi, Mohammad;Czerniawski, Thomas;Walbridge, Scott - 通讯作者:
Walbridge, Scott
Integrated Risk Management Framework for Tolerance-Based Mitigation Strategy Decision Support in Modular Construction Projects
- DOI:
10.1061/(asce)me.1943-5479.0000698 - 发表时间:
2019-07-01 - 期刊:
- 影响因子:7.4
- 作者:
Enshassi, Mohammed S. A.;Walbridge, Scott;Haas, Carl T. - 通讯作者:
Haas, Carl T.
Fatigue Behavior of Welded Shear Studs in Precast Composite Beams
- DOI:
10.1061/(asce)be.1943-5592.0001134 - 发表时间:
2017-11-01 - 期刊:
- 影响因子:3.6
- 作者:
Sjaarda, Matthew;Porter, Taylor;Walbridge, Scott - 通讯作者:
Walbridge, Scott
Walbridge, Scott的其他文献
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{{ truncateString('Walbridge, Scott', 18)}}的其他基金
Holistic Vibration Condition Monitoring for Heterogeneous Airport Assets
异构机场资产的整体振动状态监测
- 批准号:
541430-2019 - 财政年份:2021
- 资助金额:
$ 2.48万 - 项目类别:
Collaborative Research and Development Grants
Durability Testing and Reliability Analysis of Connections in Lightweight Metal Structures
轻质金属结构连接的耐久性测试和可靠性分析
- 批准号:
RGPIN-2017-03926 - 财政年份:2021
- 资助金额:
$ 2.48万 - 项目类别:
Discovery Grants Program - Individual
Durability Testing and Reliability Analysis of Connections in Lightweight Metal Structures
轻质金属结构连接的耐久性测试和可靠性分析
- 批准号:
RGPIN-2017-03926 - 财政年份:2019
- 资助金额:
$ 2.48万 - 项目类别:
Discovery Grants Program - Individual
Static and fatigue testing of partial penetration groove welds in aluminum structures**
铝结构部分熔透坡口焊缝的静态和疲劳测试**
- 批准号:
533720-2018 - 财政年份:2018
- 资助金额:
$ 2.48万 - 项目类别:
Engage Grants Program
Durability Testing and Reliability Analysis of Connections in Lightweight Metal Structures
轻质金属结构连接的耐久性测试和可靠性分析
- 批准号:
RGPIN-2017-03926 - 财政年份:2018
- 资助金额:
$ 2.48万 - 项目类别:
Discovery Grants Program - Individual
Quality control and fatigue design of friction stir welded joints in aluminum bridge decks
铝桥面搅拌摩擦焊接头的质量控制和疲劳设计
- 批准号:
494843-2016 - 财政年份:2017
- 资助金额:
$ 2.48万 - 项目类别:
Collaborative Research and Development Grants
New connection concepts for modular aluminum bridge applications
模块化铝桥应用的新连接概念
- 批准号:
499947-2016 - 财政年份:2017
- 资助金额:
$ 2.48万 - 项目类别:
Collaborative Research and Development Grants
Durability Testing and Reliability Analysis of Connections in Lightweight Metal Structures
轻质金属结构连接的耐久性测试和可靠性分析
- 批准号:
RGPIN-2017-03926 - 财政年份:2017
- 资助金额:
$ 2.48万 - 项目类别:
Discovery Grants Program - Individual
Hydraulic Grips and Controller for Variable Amplitude Fatigue Testing of Structural Connections, Interfaces, and Cables
用于结构连接、接口和电缆变幅疲劳测试的液压夹具和控制器
- 批准号:
RTI-2017-00118 - 财政年份:2016
- 资助金额:
$ 2.48万 - 项目类别:
Research Tools and Instruments
Fatigue Assessment of Retrofitted Bridge Welds in the High Cycle Domain
高循环领域改造桥梁焊缝的疲劳评估
- 批准号:
341305-2012 - 财政年份:2016
- 资助金额:
$ 2.48万 - 项目类别:
Discovery Grants Program - Individual
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