Development of structural health monitoring and early warning system for reinforced concrete system

2015 ◽  
Author(s):  
Data Iranata ◽  
Endah Wahyuni ◽  
Suryawan Murtiadi ◽  
Amien Widodo ◽  
Edwin Riksakomara ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Concrete System ◽  
Structural Health ◽  
Monitoring And Early Warning

Application of Earthquake Early Warning System to Seismic-Isolated Buildings

2009 ◽  
Vol 4 (4) ◽  
pp. 570-578 ◽  
Author(s):  
Keiichi Okada ◽  
◽  
Yutaka Nakamura ◽  
Masaaki Saruta
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Earthquake Early Warning ◽  
Building Structures ◽  
Disaster Prevention ◽  
Earthquake Early Warning System ◽  
Structural Health

The Japan Meteorological Agency (JMA) has developed an earthquake early warning system to release information in the event of earthquake, and this system has been in practical use since 2007. Meanwhile, structural health monitoring technology has been attracting attention from those who want to save time in determining the structural health of buildings and who want to detect earthquake resistance performance and damage sustained. Practical applications of this technology have also begun. Seismic-isolated buildings have been developed to protect building structures and keep properties safe from earthquakes and this is significantly effective means to protect properties as a preventative measure against earthquake. The technology is based on the past experiences of the Great Hanshin Earthquake in 1995. Seismic disaster prevention technologies have been further developed since then against the severe, large scale damage to buildings and loss of human life which could be incurred by earthquakes. This should be a system as safe and secure hardware and software as a system in building structures, in addition to the current situation and earthquake disaster prevention of structure itself. This paper describes the earthquake early warning system used to tackle the threat of earthquakes. And the paper shows two applications of the earthquake early warning system and structural health monitoring technologies to seismic-isolated buildings.

scholarly journals An integrated system for building structural health monitoring and early warning based on an Internet of things approach

2017 ◽  
Vol 13 (1) ◽  
pp. 155014771668910 ◽  
Author(s):  
Jun Wang ◽  
Yongfeng Fu ◽  
Xiaokang Yang
Keyword(s):  
Information System ◽  
Structural Health Monitoring ◽  
Internet Of Things ◽  
Health Monitoring ◽  
Early Warning ◽  
Cloud Services ◽  
Structural Health ◽  
Integrated Information System ◽  
Monitoring And Early Warning ◽  
Integrated Information

The intelligent security monitoring of buildings and their surroundings has become increasingly crucial as the number of high-rise buildings increases. Building structural health monitoring and early warning technology are key components of building safety, the implementation of which remains challenging, and the Internet of things approach provides a new technical measure for addressing this challenge. This article presents a novel integrated information system that combines Internet of things, building information management, early warning system, and cloud services. Specifically, the system involves an intelligent data box with enhanced connectivity and exchangeability for accessing and integrating the data obtained from distributed heterogeneous sensing devices. An extensible markup language (XML)–based uniform data parsing model is proposed to abstract the various message formats of heterogeneous devices to ensure data integration. The proposed Internet of things–based integrated information system structure was applied for monitoring an actual pit excavation engineering site. Three early warning levels were implemented according to rules based on the threshold value, which determined the specific safety personnel to be notified. The proposed Internet of things–based integrated information system is demonstrated to improve the effectiveness of monitoring processes and decision making in construction informatics applications. Our work highlights the crucial importance of a systematic approach toward integrated information systems for effective information collection and structural health monitoring.

scholarly journals Realization and Technology Acceptance Test of a Wearable Cardiac Health Monitoring and Early Warning System with Multi-Channel MCGs and ECG

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3538 ◽  
Author(s):  
Wen-Yen Lin ◽  
Hong-Lin Ke ◽  
Wen-Cheng Chou ◽  
Po-Cheng Chang ◽  
Tsai-Hsuan Tsai ◽  
...  
Keyword(s):  
Technology Acceptance ◽  
Health Monitoring ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Cardiac Health ◽  
Smart Clothing ◽  
Monitoring And Early Warning

In this work, a wearable smart clothing system for cardiac health monitoring with a multi-channel mechanocardiogram (MCG) has been developed to predict the myo-cardiac left ventricular ejection fraction (LVEF) function and to provide early risk warnings to the subjects. In this paper, the realization of the core of this system, i.e., the Cardiac Health Assessment and Monitoring Platform (CHAMP), with respect to its hardware, firmware, and wireless design features, is presented. The feature values from the CHAMP system have been correlated with myo-cardiac functions obtained from actual heart failure (HF) patients. The usability of this MCG-based cardiac health monitoring smart clothing system has also been evaluated with technology acceptance model (TAM) analysis and the results indicate that the subject shows a positive attitude toward using this wearable MCG-based cardiac health monitoring and early warning system.

A New Structural Health Monitoring System to Assess Bridge Scour

2021 ◽  
Author(s):  
Panagiotis Michalis ◽  
Manousos Valyrakis ◽  
Elissavet Vintzilaiou
Keyword(s):  
Structural Health Monitoring ◽  
Real Time ◽  
Health Monitoring ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Bridge Scour ◽  
Flood Hazards ◽  
Health Monitoring System ◽  
Scour Monitoring

<p>Scour action still remains the leading cause of numerous bridge failures each year and is considered one of the most destructive flood related hazards occurring around underwater foundation elements [1]. Undetected erosion related processes are therefore the cause of major disruptions to the transportation network with significant socio-economic losses and disruption to users, maintainers and asset owners. Recent cases of bridge failures due to extreme climatic events have highlighted the need for a reliable scour monitoring and early warning system to assess flood and geo-related hazards in real-time, providing advanced key info for repair and maintenance actions. Despite the past efforts to provide such a system for scour assessment, most of these instruments have not managed to realise a solution for scour monitoring due to technical and cost issues. The existing practices to assess, manage and maintain transportation assets are mainly based on visual inspection procedure which is also considered to be insufficient [2]. As a result there currently exists a gap in the knowledge and understanding of scour mechanism during flood incidents.</p><p>This study presents the architecture of ‘Climatic Hazard Monitoring and Bridge Scour Early Warning System’ (CliHaMoS) project, which is expected to significantly assist towards the optimisation of bridge performance against scour issues with a real-time data driven approach. CliHaMoS platform comprises of a new structural health monitoring system based on a novel bio-inspired sensing system aiming to deliver key information under different hydrodynamic events for real-time and forecasted assessment of flood hazards at bridges. The sensing solution is coupled by an early warning system, with advanced interoperability characteristics, to provide a holistic interactive platform and ensure that risks associated with flood hazards are properly and timely communicated to end-users. The obtained information is expected to enable stakeholders to plan adaptation strategies and proactively manage and maintain transportation infrastructure.</p><p>[1] Michalis, P., Saafi, M., and Judd. M. (2013) Capacitive sensors for offshore scour monitoring. Proceedings of the ICE – Energy, 166 (4), pp. 189-197</p><p>[2] Michalis, P., Saafi, M. and Judd, M. (2012) Wireless sensor networks for surveillance and monitoring of bridge scour. Proceedings of the XI International Conference Protection and Restoration of the Environment - PRE XI. Thessaloniki, Greece, pp. 1345–1354.</p><p><em>ACKNOWLEDGMENT:</em></p><p>This research is co-financed by Greece and the European Union (European Social FundESF) through the Operational Programme «Human Resources Development, Education and 4 Lifelong Learning» in the context of the project “Reinforcement of Postdoctoral Researchers - 2nd Cycle” (MIS-5033021), implemented by the State Scholarships Foundation (ΙΚΥ).</p>

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