IMPLEMENTATION OF STRUCTURAL HEALTH MONITORING ALGORITHMS FOR ONLINE BUILDING SAFETY ASSESSMENT: APPLICATION TO NCREE BUILDING

This paper describes the implementation of a continuous structural health monitoring system to a building (National Center for Research on Earthquake Engineering) in Taipei basin, Taiwan. This seismic monitoring system is primarily designed by using pre-seismic event data, post-seismic event data and seismic event data for online and post-earthquake safety assessment of the building. Besides the design of online monitoring system in this building, the essential component of the system is the implementation of the automatic data analysis tools and software packages to extract the building vibration characteristics and dynamic features for building safety evaluation. Integration of data processing modules, system identification software and simple damage detection mechanism, the assessment of the building's condition before and after each seismic event can be reported immediately. Through such online analysis of the building response data, the event-by-event information and the time-varying dynamic characteristics of the building can be extracted, building healthy condition is created which can support the decisions for necessary maintenance and rehabilitation of the building.

關鍵字

system identification ； signal analysis ； structural health monitoring ； building safety assessment

並列摘要

本文介紹一套實際應用於國家地震工程研究中心的結構健康監測系統，此系統設計使用地震前、後的微振資料，以及地震時的強震資料，於地震結束後自動進行結構安全評估分析。本系統特別之處在於整合結構監測系統硬體，以及自動化即時健康診斷軟體。結構健康診斷包含整合數個資料處理工具融入系統識別模組，以萃取結構的動態特性，進而評估結構物在每次地震前後的狀態。透過自動化、即時分析每次地震資料，可取得結構隨時間變異的動態特性參數，進而提供一套可以在地震後快速、自動化評估結構安全的工具，作為結構物生命週期維護與補強之參考。

並列關鍵字

系統識別；訊號分析；結構健康監測系統；結構健康診斷

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