A vast city usually encompasses hundreds of thousands or even millions of buildings, majority of which are regular buildings with typical structural configurations. In the seismic damage simulation of cities, efficient and reliable simplified models are required to represent these buildings. A numerical model database of typical regular reinforced concrete (RC) frame structures was developed, utilizing shear models to simulate these RC frame structures. In contrast to existing shear models that are automatically generated based solely on the fundamental rules regulated by the theories of structures and the design codes, the shear models in this study were calibrated using refined numerical models to guarantee precise depiction of RC frame structures. The effects of reinforcement corrosion and the year of construction on structural performance were also considered. First, 108 RC frame structures were designed with typical configurations, strictly adhering to the regulations of design codes. Second, the refined models of the RC frame structures were established with modified material parameters to account for reinforcement corrosion, resulting in 540 refined models. Afterward, the parameters of each shear model were calibrated through cyclic pushover analysis of the corresponding refined numerical model. Finally, the characteristic points of the shear models were further modified to consider the different redundant capacities of the structures constructed in three time phases due to the update of design codes, by which a simplified numerical model database containing 1620 shear models was developed. The models' accuracy in predicting fundamental periods and seismic damage states was verified by comparing them to the refined models and three real RC frame buildings. The effects of the reinforcement corrosion and year of construction on the seismic damage states of the RC frame structures were also discussed. The developed numerical model database can be utilized for the seismic damage assessment of RC frame structures in urban building clusters.

中文翻译：

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城市建筑群典型规则钢筋混凝土框架结构震害快速评估数值模型数据库

一座巨大的城市通常有数十万甚至数百万栋建筑物，其中大部分是具有典型结构配置的常规建筑。在城市震害模拟中，需要高效可靠的简化模型来代表这些建筑物。开发了典型规则钢筋混凝土（RC）框架结构的数值模型数据库，利用剪切模型来模拟这些RC框架结构。与仅根据结构理论和设计规范规定的基本规则自动生成的现有剪力模型相比，本研究中的剪力模型使用精细的数值模型进行校准，以保证钢筋混凝土框架结构的精确描述。还考虑了钢筋腐蚀和施工年份对结构性能的影响。首先，严格按照设计规范的规定，采用典型配置设计了108个RC框架结构。其次，通过修改材料参数来建立 RC 框架结构的精细模型，以考虑钢筋腐蚀，从而产生 540 个精细模型。随后，通过相应细化数值模型的循环推覆分析来校准每个剪切模型的参数。最后，考虑到设计规范更新导致的三个时间阶段建造的结构的不同冗余能力，对剪力模型的特征点进行了进一步修改，建立了包含1620个剪力模型的简化数值模型数据库。通过与精化模型和三座真实钢筋混凝土框架建筑的比较，验证了模型预测基本周期和震害状态的准确性。还讨论了钢筋锈蚀和施工年限对RC框架结构震害状态的影响。开发的数值模型数据库可用于城市建筑群中RC框架结构的地震损伤评估。