CAREER: An Integrated Experimental and Numerical Vulnerability Assessment of Aging Housing Infrastructure and Communities

职业：老化住房基础设施和社区的综合实验和数值脆弱性评估

• 批准号: 2142337
• 负责人: Maria Koliou
• 金额: $ 60.85万
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2027-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2142337&HistoricalAwards=false
• 关键词: CAREER; Integrated; Experimental; Numerical; Vulnerability

This Faculty Early Career Development (CAREER) award will advance understanding of the interplay between chronic and acute natural hazard effects on wood residential buildings and will enable the development and evaluation of mitigation strategies that will improve housing functional recovery. The project outcomes will be applicable to wood housing infrastructure for post-disaster rehabilitation or pre-disaster preparedness solutions by local communities and governments considering various socioeconomic indicators. Additionally, the outcomes will inform building codes on the response and capacity of aging infrastructure and for the adoption of environmental degradation in the design of new homes. The education and outreach plans will contribute to developing and preparing a future diverse STEM workforce with interdisciplinary training to tackle the housing challenges of the 21st century. This research will contribute to the National Science Foundation (NSF) role in the National Earthquake Hazards Reduction Program (NEHRP). The overarching goal of this project is to develop a comprehensive framework for understanding, assessing, and enhancing the performance of aging wood residential infrastructure subjected to combined chronic and acute (seismic) natural hazards and its impact on housing communities. The research objectives of this project are to (a) quantify the dominant environmentally induced deterioration mechanisms of aging wood members and (b) link the structural performance of wood members and buildings under combined chronic and acute hazards to post-disaster functional recovery time, health, and social disruption of housing communities. To achieve these objectives, the research plan will comprise two thrust areas, namely, building-level and community-level vulnerability assessment of aging wood infrastructure with tasks on: (a) experimental investigations of wood members aged due to biotic decay and mechanical deterioration; (b) development of Bayesian-based predictive models for major mechanical properties of wood members considering individual and combined aging mechanisms, and accounting for uncertainties; (c) structural performance assessment of wood buildings under combined chronic and acute hazards; (d) risk analysis of aging housing infrastructure and communities through holistic agent-based models of housing communities accounting for social vulnerability indicators; and (e) mitigation strategies for improved functional recovery of housing communities through integrated optimization analyses and expert feedback solicitation. Data generated from this project will be archived and made publicly available in the NSF-supported Natural Hazards Engineering Research Infrastructure (NHERI) Data Depot (https:/www.DesignSafe-ci.org).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项教师早期职业发展（职业）奖将使人们了解慢性和急性自然危害对木材住宅建筑的影响之间的相互作用，并能够对缓解策略的发展和评估，从而改善住房功能恢复。该项目的结果将适用于考虑各种社会经济指标的当地社区和政府的污水住房基础设施，或用于灾后康复或污点前的准备解决方案。此外，结果将为建筑法规提供有关衰老基础设施的响应和能力以及在新房屋设计中采用环境退化的响应和能力的信息。教育和外展计划将通过跨学科培训来发展和准备多样化的STEM劳动力，以应对21世纪的住房挑战。这项研究将促进国家科学基金会（NSF）在国家地震危害计划（NEHRP）中的作用。该项目的总体目标是建立一个综合框架，以理解，评估和增强木材木材住宅基础设施的绩效，该基础设施受到慢性和急性（地震）自然危害及其对住房社区的影响。该项目的研究目标是（a）量化木材成员的主要环境诱导的恶化机制，以及（b）将木材成员和建筑物在综合慢性和急性危害下的结构性能与污水爆炸后的功能恢复时间，健康和住房社区的社会破坏联系起来。为了实现这些目标，研究计划将包括两个推力区域，即建筑水平和社区水平的脆弱性评估老化木材基础设施的脆弱性评估：（a）对木材成员的实验研究，该木材成员因生物衰减而导致的木材成员； （b）开发基于贝叶斯的预测模型，以考虑木材成员的主要机械性能，考虑到个体和联合老化机制，并考虑不确定性； （c）在慢性和急性危害下对木材建筑的结构性绩效评估； （d）通过基于整体代理的住房社区模型对衰老住房基础设施和社区的风险分析，这些模型涉及社会脆弱性指标； （e）通过综合优化分析和专家反馈招标改善住房社区功能恢复的缓解策略。 Data generated from this project will be archived and made publicly available in the NSF-supported Natural Hazards Engineering Research Infrastructure (NHERI) Data Depot (https:/www.DesignSafe-ci.org).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.