Reliability of timber structural system under seismic loading

地震荷载下木结构体系的可靠性

• 批准号: 203409-2007
• 负责人: Lam, Frank
• 金额: $ 2.55万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=365229
• 关键词: Reliability; timber; structural; system; under

The objective of this research program is to develop fundamental understanding and analytical tools to study the reliability of woodframe and post & beam building systems under seismic loading.Reliability based assessment as a means to define the performance of timber structures is a goal recognized by design code committees worldwide.  Its application is particularly suited to timber structures under earthquake loadings as the material properties of the timber, the seismic event, and the generated lateral forces are highly random.  The proposed work will focus on the development of a database to study the performance and damage of more realistic taller and irregular timber buildings including: 1) the "stiffness" of floor (with perforations) and roof diaphragms; 2) the performance of taller walls with or without perforations; and 3) the 3-dimensional structural behaviour of full size taller structures.  Models linking the semi-rigid diaphragm to the UBC pseudo nail wall analysis tool will be developed; the model will be calibrated and verified against test data, and reliability assessment on the seismic response of more realistic structures will be conducted by using either a fragility or response surface approach.

本研究项目的目的是发展基本的理解和分析工具来研究木结构和梁柱建筑系统在地震荷载下的可靠性。基于可靠性的评估作为一种确定木结构性能的手段是世界各地设计规范委员会公认的目标。它的应用特别适合于地震荷载下的木结构，因为木材的材料特性，地震事件，以及所产生的侧向力是高度随机的。建议的工作将集中于开发一个数据库，以研究更现实的较高和不规则的木结构建筑的性能和损坏，包括：1）楼板的“刚度（有穿孔）和屋顶横隔; 2）有或没有穿孔的更高的墙壁的性能;以及3）全尺寸高层结构的三维结构行为。将开发将半刚性隔板与UBC伪钉墙分析工具连接起来的模型;该模型将根据测试数据进行校准和验证，并采用易损性或响应面方法对更真实的结构进行地震反应的可靠性评估。