System Identification of Heritage Structures through AVT and OMA: A Review

Q2 Engineering

SDHM Structural Durability and Health Monitoring Pub Date : 2019-01-01 DOI:10.32604/sdhm.2019.05951

Vinay Shimpi, M. Sivasubramanian, S. B. Singh

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引用次数: 10

Abstract

In this review article, the past investigations carried out on heritage structures using Ambient Vibration Test (AVT) and Operational Modal Analysis (OMA) for system identification (determination of dynamic properties like frequency, mode shape and damping ratios) and associated applications are summarized. A total of 68 major research studies on heritage structures around the world that are available in literature are surveyed for this purpose. At first, field investigations carried out on heritage structures prior to conducting AVT are explained in detail. Next, specifications of accelerometers, location of accelerometers and optimization of accelerometer networks have been elaborated with respect to the geometry of the heritage structures. In addition to this, ambient vibration loads and data acquisition procedures are also discussed. Further, the state of art of performing OMA techniques for heritage structures is explained briefly. Furthermore, various applications of system identification for heritage structures are documented. Finally, conclusions are made towards errorless system identification of heritage structures through AVT and OMA.

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基于AVT和OMA的遗产结构系统识别综述

本文综述了利用环境振动试验(AVT)和运行模态分析(OMA)进行系统识别(确定频率、模态振型和阻尼比等动态特性)和相关应用对传统结构进行的研究。为此，我们对世界上现存文献中关于遗产建筑的68项主要研究进行了调查。首先，详细介绍了在进行AVT之前对遗产结构进行的实地调查。其次，针对遗产结构的几何形态，阐述了加速度计的规格、加速度计的位置和加速度计网络的优化。此外，还讨论了环境振动载荷和数据采集程序。此外，简要说明了对遗产建筑进行OMA技术的技术现状。此外，还介绍了遗产建筑系统识别的各种应用。最后，通过AVT和OMA对遗产建筑进行无差错系统识别。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

SDHM Structural Durability and Health Monitoring Engineering-Building and Construction

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： In order to maintain a reasonable cost for large scale structures such as airframes, offshore structures, nuclear plants etc., it is generally accepted that improved methods for structural integrity and durability assessment are required. Structural Health Monitoring (SHM) had emerged as an active area of research for fatigue life and damage accumulation prognostics. This is important for design and maintains of new and ageing structures.