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CAREER: A Multi-scale Methodology for Assessing the Reductions in Seismic Risk Possible through Building Retrofit Design and Policy, from Buildings to Communities

CAREER: A Multi-scale Methodology for Assessing the Reductions in Seismic Risk Possible through Building Retrofit Design and Policy, from Buildings to Communities
职业生涯:评估通过建筑改造设计和政策(从建筑物到社区)可能降低地震风险的多尺度方法
批准号:
1250163
负责人:
Abbie Liel
金额:
$40.0万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2013
资助国家:
美国
项目状态:
已结题
起止时间:
2013-06-01 至 2019-05-31

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中文摘要
翻译
该学院早期职业发展(Career)项目奖的研究目标是开发多尺度模型,以评估翻新设计和政策对社区减少地震风险的影响。对翻新的重视是因为大量较老的建筑早于抗震规范规定的重大修改,因此容易受到地震造成的破坏。到目前为止,这些建筑的翻新进展缓慢,无法显著降低损坏风险,部分原因是建筑业主发现,在竞争激烈的市场中,翻新成本很高。本研究从三个层面分析抗震改造问题:个体建筑、社区和政策选择。这项研究将首先制定一种对改装结构进行分类和确定其特征的概率方法,以便系统地评估改装建筑的脆弱性和减少地震风险。这些评估将结合起来,使用先进的方法来量化结构响应中的相关性和相互依赖性,以产生社区规模的地震风险评估。这项研究还将模拟改造政策对降低社区地震风险的影响,纳入政策实施的历史数据。这项研究的结果将成为通过综合评估结构反应和社区影响来评估抗震改造和其他潜在缓解替代办法的框架。这一方法不仅为重新评估地震改造和政策制定奠定了基础,而且也为减少其他灾害风险的缓解活动奠定了基础。综合教育计划将导致开发新的服务学习课程模块。在这些单元中,学生将与科罗拉多州的非营利性组织合作,帮助有需要的个人和组织建造和改善房屋或其他设施。这些服务学习单元是一种工具,用于改进关于结构分析、设计和改造的实际学习,提高留住结构工程专业的多样化和积极性的学生,并使学生做好准备,成为处理脆弱的现有建筑的带头实践者。为服务学习开发的课程材料将提供给其他教职员工和大学。
英文摘要
The research objective of this Faculty Early Career Development (CAREER) program award is to develop multi-scale models to evaluate the impacts of retrofit design and policy on a community for earthquake risk reduction. The emphasis on retrofit is motivated by the large number of older buildings that predate major changes to seismic code provisions and, as a result, are vulnerable to earthquake-induced damage. To date, progress in retrofitting these buildings has been slow to significantly reduce risk of damage, in part because building owners find retrofit costs are expensive in competitive market. This research addresses the problem of seismic retrofit at three levels of analysis: individual buildings, communities, and policy choices. The study will begin by developing a probabilistic methodology for classifying and characterizing retrofitted structures for the purpose of systematically assessing the fragility of retrofitted buildings and the reduction in seismic risk. These evaluations will be combined, using advanced methods to quantify correlations and interdependencies in structural response, to produce community-scale assessments of seismic risk. The research will also model the influence of retrofit policies on community seismic risk reduction, incorporating historical data on policy implementation. The outcome of this research will be a framework for evaluating seismic retrofit and other potential mitigation alternatives through integrated assessment of structural response and community impacts. The methodology lays the groundwork for a re-evaluation not only of seismic retrofit and policy making, but also mitigation activities to reduce risks from other hazards. The integrated education plans will lead to the development of new service-learning course modules. In these modules, students will partner with Colorado-based non-profit organizations that help needy individuals and organizations build and improve homes or other facilities. These service learning modules are a vehicle to improve practical learning about structural analysis, design and retrofit, to improve retention of diverse and motivated students in structural engineering, and to prepare students to be leading practitioners in dealing with vulnerable existing buildings. Curriculum materials developed for service learning will be made available to other faculty and universities.
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