Integrated research program for safety and sustainability of new and ageing infrastructure subjected to multiple hazards
Integrated research program for safety and sustainability of new and ageing infrastructure subjected to multiple hazards
批准号:
298284-2009
负责人:
Haukaas, Terje
金额:
$1.6万
依托单位国家:
加拿大
项目类别:
Discovery Grants Program - Individual
财政年份:
2010
资助国家:
加拿大
项目状态:
已结题
起止时间:
2010-01-01 至 2011-12-31
中文摘要
拟议研究计划的长期目标是开发知识,技术和高素质的人才,以促进新的和老化的民用基础设施的最佳安全性和可持续性。公共安全-包括经济安全-在很大程度上取决于桥梁和建筑物等民用基础设施。在所提出的研究中,损坏的概率,由于恶化和戏剧性的加载事件进入总损失曲线,用于决策。虽然传统的研究集中在个别结构成员,这一建议建立在最近的进展,在模拟全球结构性能。在一个协同的奋进,新兴的BIM技术在建筑行业被用来生成复杂的结构模型,包括损坏的非结构部件。通信是通过扩展行业基础类来实现的;这是建筑行业互操作性的ISO标准。通过一种新的统一的可靠性方法,这些模型被认为是结合多种危险,包括地震和老化造成的恶化。在一个可靠性分析中,获得了区域损失概率,并将关键基础设施确定为有价值的副产品。提出了一种“自适应保真度”策略,通过平衡计算成本和认知模型的不确定性来逐步细化结构模型。在一个协调的努力,结构性能的概率模型进行校准与贝叶斯方法明确识别的认知不确定性。这项工作利用了近年来在世界范围内进行的广泛的结构测试计划。朝着最终目标的方式,平衡成本,安全性和可持续性的资源分配;现有的实用指标的可持续性扩展的结构工程的背景下。预计这将影响传统的优化设计,材料选择和建筑构件的可重复使用性。值得注意的是,该方法的区域性质有助于研究与城市地区密集化相关的风险,最近有人认为这比城市扩张更具可持续性。
英文摘要
The long-term objective of the proposed research program is to develop knowledge, technologies, and highly qualified personnel to foster optimal safety and sustainability of new and ageing civil infrastructure. Public safety - including economic security - depends strongly on civil infrastructure, such as bridges and buildings. In the proposed research, the probability of damage due to deterioration and dramatic loading events enter into total loss curves that are used in decision making. While traditional research has focused on individual structural members, this proposal builds upon recent progress in simulation of global structural performance. In a synergistic endeavor, the emerging BIM-technology in the building industry is utilized to generate sophisticated structural models, including damage to non-structural components. The communication is carried out by extending the Industry Foundation Classes; an ISO standard for interoperability in the building industry. By means of a novel unified reliability approach, these models are considered in conjunction with multiple hazards, including earthquakes and deterioration due to ageing. In one reliability analysis, a regional loss probability is obtained, with identification of critical infrastructure as a valuable by-product. An "adaptive fidelity" strategy is put forward to gradually refine the structural models by balancing computational cost and epistemic model uncertainty. In a coordinated effort, probabilistic models for structural performance are calibrated with a Bayesian methodology to explicitly identify the epistemic uncertainty. This work utilizes the extensive structural testing programs that have been undertaken worldwide in recent years. Towards the ultimate objective of allocating resources in a manner that balances cost, safety, and sustainability; existing utility metrics for sustainability are extended in the context of structural engineering. This is expected to affect traditional optimal designs, material selection, and re-usability of building components. Notably, the regional nature of the methodology facilitates the study of risk associated with densification of urban areas, which has recently been argued to be more sustainable than urban sprawl.
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会议论文
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资助金额:$1.6万
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依托单位:
Integrated research program for safety and sustainability of new and ageing infrastructure subjected to multiple hazards
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批准号:298284-2009
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项目类别:Discovery Grants Program - Individual
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资助金额:$1.6万
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财政年份:2013
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负责人:Haukaas, Terje
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依托单位:
Integrated research program for safety and sustainability of new and ageing infrastructure subjected to multiple hazards
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批准号:298284-2009
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项目类别:Discovery Grants Program - Individual
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资助金额:$1.6万
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财政年份:2012
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负责人:Haukaas, Terje
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依托单位:
Integrated research program for safety and sustainability of new and ageing infrastructure subjected to multiple hazards
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批准号:298284-2009
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项目类别:Discovery Grants Program - Individual
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资助金额:$1.6万
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财政年份:2011
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负责人:Haukaas, Terje
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依托单位:
Integrated research program for safety and sustainability of new and ageing infrastructure subjected to multiple hazards
-
批准号:298284-2009
-
项目类别:Discovery Grants Program - Individual
-
资助金额:$1.6万
-
财政年份:2009
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负责人:Haukaas, Terje
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依托单位:
Evaluation and comparison of risk and performance reliability for infrastructure under multiple hazards
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依托单位:
Finite element reliability and sensitivity methods for performance-based seismic design
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项目类别:Discovery Grants Program - Individual
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资助金额:$1.24万
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依托单位:
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批准号:298284-2004
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项目类别:Discovery Grants Program - Individual
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依托单位:
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项目类别:Discovery Grants Program - Individual
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资助金额:$1.24万
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财政年份:2006
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依托单位:
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批准号:336498-2006
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依托单位:
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批准号:298284-2004
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资助金额:$1.24万
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负责人:Haukaas, Terje
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依托单位:
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