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Characterization of local and global capacity criteria for collapse assessment of code-conforming RC buildings
Bulletin of Earthquake Engineering ( IF 3.8 ) Pub Date : 2021-05-19 , DOI: 10.1007/s10518-021-01115-y
Danilo D’Angela , Gennaro Magliulo , Francesca Celano , Edoardo Cosenza

The paper investigates both local and global capacity criteria for collapse assessment of RC frame buildings. Both literature and regulations criteria are considered, also including the formulation recommended in the draft of the new Eurocode 8 (part 3) and other collapse criteria never investigated. The case studies consist of low-rise bare and infilled frame buildings, which are designed according to the Italian code provisions considering low-to-high seismicity sites in Italy. The seismic demand is estimated by performing multiple-stripe analysis based on inelastic modeling, also including the presence of the infills. The capacity assessment and the performance evaluation associated with the (building) collapse are carried out according to the latest approaches and methodologies of performance-based earthquake engineering. The investigated capacity criteria are characterized as a result of the collapse assessment in terms of (a) collapse demand to capacity ratios, (b) collapse fragility curves, (c) collapse margin ratios and probabilities, and (d) inter-capacity margin ratios. The findings provide novel information and technical insights into the influence of the collapse capacity criteria selection on the collapse features of the investigated buildings. In particular, the capacity criteria are quantitatively correlated to the building collapse performance, also outlining safety and economic considerations.



中文翻译:

符合规范的RC建筑物倒塌评估的本地和全球能力标准的特征

本文研究了RC框架建筑物倒塌评估的本地和全球能力标准。考虑了文献和法规标准,还包括新的欧洲法规8(第3部分)草案中推荐的公式以及从未研究过的其他塌陷标准。案例研究包括低层裸露和填充式框架建筑,这些建筑是根据意大利规范规定设计的,其中考虑了意大利从低到高的地震现场。通过基于非弹性建模(也包括填充物的存在)执行多条带分析来估计地震需求。与(建筑物)倒塌相关的能力评估和性能评估是根据基于性能的地震工程的最新方法和方法进行的。崩溃评估的结果是,所调查的容量标准的特征是:(a)崩溃需求与容量之比;(b)崩溃脆弱性曲线;(c)崩溃边际比率和概率;以及(d)容量间边际比率。这些发现为倒塌能力标准选择对被调查建筑物倒塌特征的影响提供了新颖的信息和技术见解。尤其是,容量标准与建筑物倒塌性能在数量上相关,还概述了安全和经济方面的考虑。这些发现为倒塌能力标准选择对被调查建筑物倒塌特征的影响提供了新颖的信息和技术见解。尤其是,容量标准与建筑物倒塌性能在数量上相关,还概述了安全和经济方面的考虑。这些发现为倒塌能力标准选择对被调查建筑物倒塌特征的影响提供了新颖的信息和技术见解。尤其是,容量标准与建筑物倒塌性能在数量上相关,还概述了安全和经济方面的考虑。

更新日期:2021-05-19
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