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

基于性能的建筑结构抗震设计分析-设计-评估框架的开发

• 批准号: 500576-2016
• 负责人: Kwon, OhSung
• 金额: $ 1.89万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=656206
• 关键词: Development; Analysis; Design; Assessment; Framework

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.

拟议研究的目的是为基于绩效的建筑结构地震设计弹性分析，设计和非弹性性能评估开发一个框架。在常规设计方法中，生命安全性（即力容量）和可维护性（即漂移极限）在设计过程中考虑了。由于常规设计方法基于线性弹性分析，因此该方法无法实际评估受到地震激发的结构的性能。此外，在满足所有者的各种绩效需求（例如与一定的地震事件强度相关的预期经济损失）时，传统的由代码的规范设计受到限制。另一方面，在基于性能的设计（PBD）方法中，定义了各种地震危险场景的目标性能要求，并设计了一种结构来满足要求。在此过程中，需要根据结构的现实数值模型来评估结构的性能，该模型可以捕获结构的非弹性行为。拟议的研究旨在通过执行三个主要研究任务来促进PBD：1）为基于绩效的地震设计开发一个新颖的分析设计设计框架，2）通过将非线性分析工具与常规分析设计工具合并到常规分析工具中，以及3）使用验证和验证示例的验证和验证示例，以实现该框架。该研究项目将极大地影响行业合作伙伴，结构工程行业和加拿大。将在行业合作伙伴的主要产品中实施的研究开发将使该公司在未来五年内领导市场。对于加拿大来说，通过提高行业合作伙伴和培训HQP的竞争力将带来经济利益。此外，使用该框架设计的建筑结构将是安全且经济的，这将在发生重大地震的情况下最大程度地减少社会损失。