Modern seismic design and the retrofitting of buildings necessarily need to account for expected economic losses. Available refined and simplified procedures implemented in automatic computer tools allow for probabilistic loss assessments. These mostly rely on consequence functions derived by simulating the repair actions needed to restore a component to its pre-earthquake condition. However, due to the lack of data, only a few studies have benchmarked theoretical loss assessments with actual repair costs monitored in the aftermath of earthquake events. This paper analyses the actual repair costs of a database of 120 reinforced concrete residential buildings damaged by the 2009 earthquake in L’Aquila, Italy. The repair cost distributions and the correlation with observed earthquake damage are provided at the building and component levels. The repair costs of drift- and acceleration-sensitive components are also reported. This study outlines that repairing hollow clay brick infills and partitions that are typical of the Mediterranean construction standard constitutes the majority of total repair costs. Reliable consequence functions calibrated on actual cost data are proposed for different damage states.

中文翻译：

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RC 建筑构件的维修成本：从实际数据分析到校准后果函数

现代抗震设计和建筑物的改造必然需要考虑预期的经济损失。在自动计算机工具中实施的可用精炼和简化程序允许进行概率损失评估。这些主要依赖于通过模拟将组件恢复到其震前状态所需的修复操作而得出的后果函数。然而，由于缺乏数据，只有少数研究将理论损失评估与地震事件后监测的实际修复成本进行了对比。本文分析了在 2009 年意大利拉奎拉地震中受损的 120 座钢筋混凝土住宅的数据库的实际维修成本。修复成本分布以及与观测到的地震损坏的相关性在建筑物和组件级别提供。还报告了漂移和加速度敏感部件的维修成本。本研究概述了修复典型的地中海建筑标准的空心粘土砖填充物和隔板占总修复成本的大部分。针对不同的损伤状态提出了基于实际成本数据校准的可靠后果函数。