This paper presents a methodology to perform the seismic vulnerability assessment of existing buildings. It starts with the acquisition of structural data from available construction drawings and field investigations to create a preliminary finite element model. Then, a wireless sensor network is used to collect the structural response at different locations. The sensors are connected and synchronized to each other to download and process data in real time. Modal identification methods, such as output-only and forced vibration techniques, are used to determine the modal characteristics and consequently calibrate the structural model for the subsequent vulnerability assessment. The proposed methodology is applied to a reinforced concrete school building in Italy. The seismic vulnerability is evaluated using a variety of alternative formulations. In particular, material nonlinearities and contact interaction at the structural joints are considered.

本文提出了一种对现有建筑物进行地震易损性评估的方法。它从获取可用的施工图和现场调查中的结构数据开始，以创建初步的有限元模型。然后，使用无线传感器网络收集不同位置的结构响应。传感器相互连接并同步，以实时下载和处理数据。模态识别方法（例如仅输出和强制振动技术）用于确定模态特征，并因此校准结构模型以用于后续的脆弱性评估。拟议的方法适用于意大利的钢筋混凝土教学楼。使用多种替代公式评估地震脆弱性。