Towards a sustainable design of regular and prestressed concrete structure
走向常规和预应力混凝土结构的可持续设计
基本信息
- 批准号:239024-2006
- 负责人:
- 金额:$ 1.23万
- 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:2006
- 资助国家:加拿大
- 起止时间:2006-01-01 至 2007-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The progress in structural engineering design is strongly influenced by the awareness of our modern society in the areas of the environment, sustainability and the efficient use of materials and technology. The need of industry is a reflection of the perception of the society and its demand on improving the quality of life for all citizens and the future generations. Prestress concrete and in particular research on deterioration of prestressed concrete plays a vital role in fulfilling future needs of the construction industry, to urgently address the deteriorating conditions of the nation's highways, and to improve their performance, durability and efficiency. While considerable progress has been made in evaluating corrosion of normal reinforcing steel, the prestressing steel deterioration cannot be detected conveniently with the available electrochemical tests, which, needs to be modified and calibrated to the existing condition of prestressing strands in the field. Due to several facts, for example, the combined action of high stress and corrosion can lead to a sudden failure and rupture of the steel; and repair techniques developed for normal reinforced concrete can not be applied to prestressed structures because full prestressing does not allow concrete removal. The main objectives of this research program is to increase the knowledge on the durability of existing and newly built prestressed concrete structures in order to prolong their service life, minimize repair and monitoring costs and to improve their long-term safety. Comprehensive study on the bond at the prestressing steel-concrete interface would be vital to address the deterioration problem. Also the understanding of the long term economic effects of various design, assessment and intervention options Develop a new set of HPC formulations that incorporate industrial/municipal by-products materials. These formulations will extend infrastructure service life, minimize social costs, reduce traffic congestion/productivity losses, and improve human/environmental health. Provide policy recommendations that incorporate life cycle analysis into major design and construction decisions. Develop degradation models specifically for prestressed concrete.
结构工程设计的进步受到现代社会在环境,可持续性以及材料和技术的有效利用方面的意识的强烈影响。工业的需要反映了社会对改善所有公民和后代生活质量的看法和要求。预应力混凝土,特别是预应力混凝土的劣化研究,对满足建筑业未来的需求,迫切解决国家公路的恶化状况,提高其性能、耐久性和效率起着至关重要的作用。虽然在评估普通钢筋的腐蚀方面取得了相当大的进展,利用现有的电化学测试不能方便地检测预应力钢的劣化,需要根据现场预应力束的现有条件对电化学测试进行修改和校准。由于几个事实,例如,高应力和腐蚀的联合作用可能导致钢的突然失效和断裂;针对普通钢筋混凝土开发的耐久性和修复技术不能应用于预应力结构,因为完全预应力不允许混凝土拆除。本研究计划的主要目标是增加对现有和新建预应力混凝土耐久性的认识因此,我们需要对结构进行改进,以延长其使用寿命,最大限度地减少维修和监测成本,并提高其长期安全性。对预应力钢-混凝土界面粘结的全面研究对于解决退化问题至关重要。同时,了解各种设计、评估和干预方案的长期经济影响。开发一套新的HPC配方,将工业/市政副产品材料纳入其中。这些配方将延长基础设施的使用寿命,最大限度地减少社会成本,减少交通拥堵/生产力损失,并改善人类/环境健康。提供政策建议,将生命周期分析纳入主要设计和施工决策。开发专门针对预应力混凝土的退化模型。
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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Amleh, Lamya其他文献
Effect of severe chloride environment on the flexural behaviour of hybrid concrete systems
- DOI:
10.1680/jmacr.18.00437 - 发表时间:
2020-08-01 - 期刊:
- 影响因子:2.7
- 作者:
Hussein, Luaay;Amleh, Lamya;Lachemi, Mohamed - 通讯作者:
Lachemi, Mohamed
Effect of very severe sulfate environment on bonded composite concrete system
- DOI:
10.1016/j.conbuildmat.2018.10.051 - 发表时间:
2018-12-10 - 期刊:
- 影响因子:7.4
- 作者:
Hussein, Luaay;Amleh, Lamya;Lachemi, Mohamed - 通讯作者:
Lachemi, Mohamed
Structural behavior of ultra-high performance fiber reinforced concrete-normal strength concrete or high strength concrete composite members
- DOI:
10.1016/j.conbuildmat.2015.05.030 - 发表时间:
2015-09-15 - 期刊:
- 影响因子:7.4
- 作者:
Hussein, Luaay;Amleh, Lamya - 通讯作者:
Amleh, Lamya
Modeling the effect of corrosion on bond strength at the steel-concrete interface with finite-element analysis
- DOI:
10.1139/l06-052 - 发表时间:
2006-06-01 - 期刊:
- 影响因子:1.4
- 作者:
Amleh, Lamya;Ghosh, Alaka - 通讯作者:
Ghosh, Alaka
Amleh, Lamya的其他文献
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{{ truncateString('Amleh, Lamya', 18)}}的其他基金
Mitigation of bond deterioration at steel-concrete interface due to corrosion
减轻因腐蚀引起的钢-混凝土界面粘结恶化
- 批准号:
239024-2001 - 财政年份:2005
- 资助金额:
$ 1.23万 - 项目类别:
Discovery Grants Program - Individual
Mitigation of bond deterioration at steel-concrete interface due to corrosion
减轻因腐蚀引起的钢-混凝土界面粘结恶化
- 批准号:
239024-2001 - 财政年份:2004
- 资助金额:
$ 1.23万 - 项目类别:
Discovery Grants Program - Individual
Mitigation of bond deterioration at steel-concrete interface due to corrosion
减轻因腐蚀引起的钢-混凝土界面粘结恶化
- 批准号:
239024-2001 - 财政年份:2003
- 资助金额:
$ 1.23万 - 项目类别:
Discovery Grants Program - Individual
Mitigation of bond deterioration at steel-concrete interface due to corrosion
减轻因腐蚀引起的钢-混凝土界面粘结恶化
- 批准号:
239024-2001 - 财政年份:2002
- 资助金额:
$ 1.23万 - 项目类别:
Discovery Grants Program - Individual
Mitigation of bond deterioration at steel-concrete interface due to corrosion
减轻因腐蚀引起的钢-混凝土界面粘结恶化
- 批准号:
239024-2001 - 财政年份:2001
- 资助金额:
$ 1.23万 - 项目类别:
Discovery Grants Program - Individual
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