Reliability of timber structural system under seismic loading

本研究计划的目标是发展基本的理解和分析工具，以研究木结构和柱梁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定义木结构性能的手段是世界范围内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、地震事件和产生的侧向力是高度随机的。建议的工作重点是建立一个数据库，以研究更真实的高层和不规则木结构建筑物的性能和损坏情况，包括：1)地板（带孔）和屋顶隔板的“刚度”；2)带孔或不带孔的较高墙体的性能；3)全尺寸高层结构的三维结构性能。将开发半刚性膜片与UBC伪钉壁分析工具相连接的模型；该模型将根据测试数据进行校准和验证，并通过使用易碎性或响应面方法对更实际的结构的地震反应进行可靠性评估。

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.