A framework for the rapid assessment of seismic upgrade viability using performance-based earthquake engineering
A framework for the rapid assessment of seismic upgrade viability using performance-based earthquake engineering
复制标题
使用基于性能的地震工程快速评估地震升级可行性的框架
DOI：
10.1177/87552930211065771
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发表时间：
2022
影响因子：
5
通讯作者：
D. Konstantinidis
中科院分区：
文献类型：
--
作者：
P. Steneker;L. Wiebe;A. Filiatrault;D. Konstantinidis
基于性能的地震工程（PBEE）方法允许设计人员将建筑物中的预期地震损失分解为组件级别。这种分类信息提供了根据损失来源为单个结构定制升级策略的机会。然而，由于结构与其非结构部件之间的关系，升级策略的优化变得困难;因此，必须考虑多个相互竞争的升级选项。为了解决这一障碍，本文提出了一个框架，以指导评估的可行性的结构和非结构升级战略，同时占有限的设计资源可能遇到的早期阶段的设计过程。该框架利用中值偏移概率（MSP）方法，本文介绍的PBEE方法的修改版本，快速总结结构升级对非结构部件的影响，考虑结构修改对地板危害的影响。在考虑这种关系的同时，MSP方法利用不同来源类别的损失分解来确定结构和非结构升级组合的好处，增加设计师对结构升级对损失影响的理解，并允许快速确定业主条件下独特的优化升级策略。一个案例研究的实施框架的例子，并从MSP方法获得的结果进行比较，从更严格的，但资源密集型的优化分析。本文提供了Microsoft Excel中MSP方法的一个实现。
The performance-based earthquake engineering (PBEE) methodology allows designers to deaggregate expected seismic losses in a building to a component level. This deaggregated information provides the opportunity to tailor upgrade strategies to individual structures based on sources of losses. However, the optimization of an upgrade strategy becomes difficult because of the relationship between a structure and its nonstructural components; hence, multiple competing upgrade options must be considered. To address this obstacle, this article proposes a framework to guide the assessment of the viability of both structural and nonstructural upgrade strategies, while accounting for limited design resources likely encountered in the early stages of the design process. The framework utilizes the median shift probability (MSP) method, a modified version of the PBEE method introduced in this article, to rapidly summarize the effects of structural upgrades on nonstructural components by considering the impacts of structural modifications on the floor hazards. While accounting for this relationship, the MSP method utilizes the deaggregation of loss across different source categories to identify the benefit of combined structural and nonstructural upgrades, increasing a designer’s understanding of the impact of structural upgrades on losses and allowing for the rapid determination of optimized upgrade strategies unique to the owner’s conditions. A case study example of the implementation of the framework is provided, and the results obtained from the MSP method are compared with those obtained from more rigorous but resource-intensive optimization analysis. An implementation of the MSP method in Microsoft Excel is provided with this article.