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(CALEAR)奖的研究目标是创建一个统一的设计和评估方法，以说明在建筑的整个使用寿命中，成本、对危险的恢复能力、资源消耗以及环境和社会影响之间相互关联的各种方式。在美国开发下一代建筑的一个主要挑战是提高它们对自然灾害的抵抗力，同时将可持续的做法纳入它们的建造、维护和使用寿命。目前量化建筑性能的方法主要是基于个人属性，如能源效率、对危险的恢复能力或成本。然而，这些属性经常相互冲突，使得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提供对与特定弹性和可持续发展战略相关的可能好处、相互依赖和权衡的洞察。研究成果将被纳入该项目的教育和公共宣传部分，包括：(A)新的课程，为未来的从业人员、学术人员和决策者做好准备，以解决复杂的建筑设计、评估和管理问题；(B)持续参与结构/地震工程领域招聘和留住代表性较低的少数群体和妇女的倡议；以及(C)将在洛杉矶地区的各种社区机构展出的互动展览，以提高公众对实施增强建筑物的复原力和可持续性的战略所面临的机遇和挑战的认识。离散事件模拟模型将被用来以概率的方式量化与地震相关的干扰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。这项研究的另一个方面将是建立一个多标准决策框架，支持抗震建筑系统的设计和使用寿命管理。将作为研究计划的一部分开发的科学方法和工具将通过在一组真实建筑的设计和生命周期评估中进行案例研究来进行评估和验证。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令人信服的理由，要求具有弹性和可持续特征的增强型建筑系统超过大多数美国设计规范中规定的最低性能水平，从而使更广泛的社会受益。服务寿命功能的改善和生命周期环境和经济成本的降低所产生的价值，将有可能为建筑物所有者提供显着更大的投资回报。

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.