CAREER: From Performance-Based Engineering to Resilience and Sustainability: Design and Assessment Principles for the Next Generation of Buildings

该学院早期职业发展（CAREER）奖的研究目标是创建一个统一的设计和评估方法，该方法考虑到成本，灾害恢复力，资源消耗以及环境和社会影响在整个建筑物的使用寿命中相互关联的各种方式。 在美国，与开发下一代建筑相关的一个主要挑战是提高其对自然灾害的抵御能力，同时将可持续实践纳入其使用寿命内的建设，维护和运营。目前量化建筑物性能的方法主要基于个体属性，如能源效率、灾害恢复力或成本。然而，这些属性往往相互冲突，使最终的设计解决方案难以捉摸。通过统一的设计和评估方法，这种对建筑生命周期性能的整体处理将深入了解与特定弹性和可持续性战略相关的可能利益，相互依赖性和权衡。研究结果将纳入该项目的教育和公共宣传部分，包括（a）新课程，使未来的从业人员、学术人员和决策者能够解决复杂的建筑设计、评估和管理问题，（B）持续参与招聘和留住结构/地震工程领域代表性不足的少数民族和妇女的举措，以及（c）在洛杉矶地区的多个社区机构举办互动展览，以提高公众对在实施提高建筑物的复原力和可持续性的策略时所面临的机遇和挑战的认识。离散事件模拟模型将用于以概率方式量化地震相关破坏对建筑物使用寿命功能的影响。该模型将考虑地震恢复力与经济、环境和社会影响之间的相互作用。将制定生命周期性能优化算法，以考虑多个利益相关者的偏好和目标。研究的另一个方面将是建立一个多标准的决策框架，支持抗震建筑系统的设计和使用寿命管理。作为研究计划的一部分，将开发的科学方法和工具将通过使用它们来进行一组真实的建筑物的设计和生命周期评估的案例研究进行评估和验证。该研究计划将使开发商能够向私营和公共部门的业主提供更有说服力的理由，要求增强建筑系统，使其具有超过大多数美国设计规范中的最低性能水平的弹性和可持续性。从改善服务寿命功能和减少生命周期环境和经济成本中获得的价值将有可能为建筑业主提供更大的投资回报。

The research objective of this Faculty Early Career Development (CAREER) award is to create a unified design and assessment methodology that accounts for the various ways that cost, resilience to hazards, resource consumption, and environmental and social impacts are interconnected throughout a building's service life. A major challenge related to developing the next generation of buildings in the United States is increasing their resilience to natural hazards, while, at the same time, incorporating sustainable practices into their construction, maintenance, and operation over their lifespan. Current approaches to quantifying building performance are largely based on individual attributes such as energy efficiency, resilience to hazards, or cost. However, these attributes are often in conflict with each other, making definitive design solutions elusive. Through a unified design and assessment methodology, this holistic treatment of a building's life cycle performance will provide insights into the possible benefits, interdependencies, and tradeoffs associated with specific resilience and sustainability strategies. The research findings will be integrated into the educational and public outreach components of the project including (a) new curricula that prepares future practitioners, academic faculty, and decision-makers to address complex building design, assessment, and management problems, (b) sustained engagement in initiatives to recruit and retain underrepresented minorities and women in structural/earthquake engineering, and (c) an interactive exhibit that will be showcased at various community-based institutions in the Los Angeles area, to raise public awareness of the opportunities and challenges faced when implementing strategies to enhance the resilience and sustainability of buildings. A discrete-event simulation model will be used to quantify, in a probabilistic manner, the effect of earthquake-related disruption on a building's service life functionality. The model will account for the interaction among seismic resilience and economic, environmental, and social impacts. Life cycle performance optimization algorithms will be formulated to consider multiple stakeholder preferences and objectives. Another aspect of the research will be directed towards creating a multi-criteria decision-making framework that supports the design and service life management of seismic building systems. The scientific methods and tools to be developed as part of the research program will be evaluated and validated by using them to conduct case studies in the design and life cycle assessment for a set of real buildings. The research program will benefit the broader society by enabling developers to provide more compelling reasons to owners in both the private and public sectors to request enhanced building systems with resilient and sustainable features that exceed the minimum performance level found in most U.S. design codes. The value derived from improved service-life functionality and reduced life cycle environmental and economic costs will have the potential to offer building owners dramatically greater returns on their investment.