scholarly journals Study on Modern Bridge Structure Health Monitoring System Based on Damage Identification

2021 ◽  
Vol 28 (1) ◽  
2006 ◽  
Vol 326-328 ◽  
pp. 1697-1700
Author(s):  
Heoung Jae Chun ◽  
Choong Hee Yi ◽  
Joon Hyung Byun

The embedded structural health monitoring system is envisioned to be an important factor of future structural systems. One of the many attractions of in situ health monitoring system is its capability to inspect the structural systems in less intrusive way over many other visual inspections which require disassembly of built up structures when some indications have appeared that damages have occurred in the structural systems The vacuum assisted resin transfer molding (VARTM) process is used to fabricate woven-glass/phenol composite specimens which have the PZT sensor array embedded in them. The embedded piezoceramic (PZT) sensors are used as both transmitters and receivers. A damage identification approach is developed for a woven-glass/phenol composite laminates with known localized defects. Propagation of the Lamb waves in laminates and their interactions with the defects are examined. Lamb waves are generated by the high power ultrasonic analyzer. A real time active diagnosis system is therefore established. The results obtained show that satisfactory detection accuracy could be achieved by proposed method.


2014 ◽  
Vol 926-930 ◽  
pp. 2574-2577
Author(s):  
Lin Wang

State monitoring is one of the important part of the structure healthy monitoring system, the dynamic characteristics of structures are evaluated rather frequently by measuring their vibrations. With the research and application going in deep, wireless sensor is a perfect way to expand the range of the structure health monitoring system. This dissertation started with a concept design of a wireless sensor that could be used in the structure health monitoring system. In this paper, the state monitoring of civil engineering structure by using wireless sensor technology has been gave out based on monitoring technology and network protocol analysis. Design and hand make the front-end measurement circuit board and software for secondary development based on the monitoring equipment of company. The monitoring network has been set up and experiments were carried out about the structure deformation in the standard steel beam of civil engineering structure laboratory.


Teras Jurnal ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 423
Author(s):  
Juandra Hartono ◽  
Umi Khoiroh

<p align="center"><strong>Abstrak</strong></p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">Salah satu isu utama dalam setiap penerapan <em>Structure Health Monitoring System</em> (SHMS) jembatan bentang panjang khususnya jembatan Pulau Balang II adalah bagaimana membuat SHMS tersebut dapat diandalkan secara efektif. Penggunaan sensor yang terlalu banyak tidaklah efisien demi mendapatkan informasi yang selengkap-lengkapnya terkait kondisi jembatan. Tujuan utama riset ini adalah untuk menganalisia tipe sensor, posisi penempatan sensor dan jumlah sensor yang akan dipasang pada SHMS jembatan Pulau Balang sesuai kebutuhan sensor yang efektif dan efisien. Pengamatan SHMS meliputi lendutan dek, pylon serta tegangan dek, pylon. Metode penelitian berupa pengamatan langsung di lapangan, analisa data dan diskusi dengan stakeholder jembatan. Dari hasil analisis terdapat 13 jenis sensor yang sebaiknya dipasang pada SHMS Jembatan Pulau Balang dengan total kebutuhan sensor berjumlah 87 buah. Posisi penempatan sensor sebagian besar ada di pylon, kabel dan dek yang disesuaikan dengan tipe jembatan yaitu cable stayed. Untuk sensor gempa disarankan perlu dipasang hal ini dikarenakan wilayah tersebut memiliki seismistis paling rendah yang didominasi oleh tiga zona sesar utama yaitu sesar mangkalihat, sesar tarakan dan sesar maratus oleh karena itu Kalimantan bukanlah daerah yang bebas gempa bumi.</p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">Kata kunci: <em>structural health monitoring system</em><em> (SHMS),</em><em> sensor, p</em><em>ylon, dek, cable stayed</em></p><p class="11daftarpustaka"> </p><p align="center"><strong> </strong></p><p align="center"><strong>Abstract</strong></p><p class="11daftarpustaka"> </p><p>One of the main issues in each application of Structure Health Monitoring System (SHMS) in long span bridge particularly Pulau Balang II Bridge is how to make the SHMS effectively dependable. The excessive use of sensors is inefficient in order to obtain complete information regarding the condition of the bridge. The main purpose of this research is to analyze the type of sensor, the position of the sensor placement and the number of sensors that will be installed on the SHMS structure of the Balang Island bridge according to the need for effective and efficient sensors. SHMS observations include deck deflection, pylon and deck stress, pylon. The research method is in the form of direct observation in the field, data analysis and discussions with bridge stakeholders. From the results of the analysis, there are 13 types of sensors that should be installed on the Balang Island Bridge SHMS with a total sensor requirement of 87 units. Most of the sensor placement positions are in the pylons, cables and decks that are adapted to the type of bridge, namely cable stayed. For earthquake sensors, it is recommended to install this because the area has the lowest seismicity which is dominated by three main fault zones, namely the Mangkalihat Fault, Tarakan Fault and Maratus Fault. Therefore, Kalimantan is not an earthquake-free area</p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">Keywords: <em>structural health monitoring system</em><em> (SHMS),</em><em> sensor, pylon, deck, cable stayed</em></p>


2013 ◽  
Vol 59 (2) ◽  
pp. 177-184 ◽  
Author(s):  
Artur Andrzejczak ◽  
Paweł Łeczycki ◽  
Maciej Makowski ◽  
Bartosz Pekosławski ◽  
Piotr Pietrzak ◽  
...  

Abstract This paper describes a design of wireless distributed SHM (Structure Health Monitoring) system with a particular emphasis on comparison of wireless communication standards. The presented solution is being deployed in the TULCOEMPA project. Several wireless communication standards are compared, with their benefits, disadvantages and typical areas of application. A choice of proper ISM (Industrial Scientific Medical) band and reasons for use of Wireless Sensor Networks are also discussed. The last part of this paper presents the proposed structure and designed prototype. The chosen architecture of the system and the program algorithm used for communication and measurements are described.


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