Developing a Smart Structure Using Integrated Subspace‐Based Damage Detection and Semi‐Active Control

Abstract

Damage detection in large building structures has always faced challenges due to analyzing the large amount of measured data. In this article, a new damage detection approach based on subspace method is proposed to identify damages using limited output data. Also, a new scheme is presented to develop a smart structure by integrating structural health monitoring with semi-active control strategy. If damage occurs in such a structure under severe excitations, the proposed scheme has the capability to exert necessary control forces in order to compensate for damage and reduce simultaneously the dynamic response of the structure. The reliability and feasibility of the proposed method are demonstrated by implementing the technique to two shear building structures with semi-active control devices. Results show that the damage could be identified accurately with saving time and cost due to less computation even under noise existence; and dynamic response is significantly reduced in the smart structure.

Damage Classification for Masonry Historic Structures Using Convolutional Neural Networks Based on Still Images

“…Hence, such methods may not provide necessary guidance for the maintenance of historic structures, which can result in a substantial increase in maintenance costs. One solution to these problems is to use sensor‐based SHM systems (Amezquita‐Sanchez and Adeli, ; Karami and Akbarabadi, ; Amezquita‐Sanchez et al., ; Liao, ). However, collecting data using various sensors and monitoring every historic structure in a short time require a large expense.…”

Sustainable Decision-Making in Civil Engineering, Construction and Building Technology

“…Much attention is being paid to vibration control and the health monitoring of buildings and engineering structures [7][8][9][10][11], including bridges [12,13] and high-rise buildings [14][15][16]. A comprehensive review of tuned mass dampers for the vibration control of structures was provided [17]. In applying the principles of sustainability, besides technological and economic aspects, environmental and social aspects also need to be considered.…”

Diagrid: An innovative, sustainable, and efficient structural system

“…In the past few decades, structural control, including passive, active, and semi‐active control, has been advanced to ameliorate the effects of extreme dynamic loading . In particular, significant research has been reported in the areas of active and semi‐active control of structures…”

“…[50] In the past few decades, structural control, including passive, active, and semi-active control, has been advanced to ameliorate the effects of extreme dynamic loading. [51][52][53][54] FIGURE 10 H-section steel diagrid connections adapted from Kim et al [44,45] In particular, significant research has been reported in the areas of active and semi-active control of structures [55][56][57][58] Diagrids are known to have considerable lateral stiffness [6,11] but smaller ductility compared to conventional tubular structures. [9] Ductility is especially important for structures in seismic regions.…”