Development of Analysis-Design-Assessment Framework for Performance Based Seismic Design of Building Structures

提出的研究目标是为基于性能的建筑结构抗震设计开发一个弹性分析、设计和非弹性性能评估框架。在传统的设计方法中，在设计过程中考虑了寿命安全性（即受力能力）和适用性（即漂移极限）。由于传统的设计方法是基于线弹性分析，这种方法不能真实地评估结构在地震作用下的性能。此外，传统的规范规范设计在满足业主的各种性能需求方面是有限的，例如与一定强度的地震事件相关的预期经济损失。另一方面，在基于性能的设计（PBD）方法中，定义了各种地震灾害情景的目标性能要求，并设计了满足要求的结构。在这个过程中，结构的性能需要基于一个现实的结构数值模型来评估，该模型可以捕捉结构在破坏之前的非弹性行为。本研究旨在通过三个主要研究任务来促进PBD: 1)为基于性能的地震设计开发一种新的分析-设计-评估框架；2)通过将非线性分析工具与传统的分析-设计工具相结合来实现该框架；3)为所采用的非线性数值模型开发一份包含验证和验证示例的文件。该研究项目将对行业合作伙伴、结构工程行业和加拿大产生重大影响。将在行业合作伙伴的主要产品中实施的研究开发将使公司在未来五年内引领市场。对加拿大来说，通过提高工业伙伴的竞争力和培训hqp将获得经济利益。此外，使用框架设计的建筑结构将是安全和经济的，这将在发生大地震时最大限度地减少社会损失。

The objective of the proposed research is to develop a framework for elastic analysis, design, and inelastic performance assessment for performance based seismic design of building structures. In the conventional design approach life safety (i.e. force capacity) and serviceability (i.e. drift limit) are considered in the design process. Because the conventional design method is based on the linear elastic analysis, the method cannot realistically assess the performance of a structure subjected to earthquake excitation. In addition, the conventional code-complying prescriptive design is limited in meeting an owner's various performance needs such as expected economic loss associated with a certain intensity of earthquake event. In the performance-based design (PBD) approach, on the other hand, target performance requirements for various seismic hazard scenarios are defined, and a structure is designed to meet the requirements. In this process, the performance of the structure needs to be assessed based upon a realistic numerical model of the structure that can capture the inelastic behaviour of the structure up to failure. The proposed research aims at facilitating the PBD by carrying out three major research tasks: 1) develop a novel analysis-design-assessment framework for performance based seismic design, 2) implement the framework by incorporating nonlinear analysis tools with a conventional analysis-design tool, and 3) develop a document with verification and validation examples for the adopted nonlinear numerical models. The research project will significantly impact the industry partner, the structural engineering industry, and Canada. The research development which will be implemented in the industry partner's main product will allow the company to lead the market in the next five years. For Canada, there will be economic benefits by improving the competitiveness of the industry partner and by training HQPs. In addition, building structures designed using the framework will be safe and economical which will minimize the societal loss in the event of major earthquakes.