scholarly journals Analysis of Quasistatic Deformation of Reinforced Concrete Structure on the Basis of Acoustic Emission on the Results of Vibration Diagnostics and Acoustic Emission

2020 ◽  
Vol 28 ◽  
pp. 1407-1415
Author(s):  
I. Shardakov ◽  
I. Glot ◽  
A. Shestakov ◽  
R. Tsvetkov ◽  
V. Yepin ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Reinforced Concrete ◽  
Concrete Structure ◽  
Reinforced Concrete Structure ◽  
Vibration Diagnostics

Acoustic emission monitoring of a reinforced concrete structure by applying new fiber-optic sensors

2005 ◽  
Vol 14 (3) ◽  
pp. S52-S59 ◽  
Author(s):  
Kazuro Kageyama ◽  
Hideaki Murayama ◽  
Isamu Ohsawa ◽  
Makoto Kanai ◽  
Keiichi Nagata ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Reinforced Concrete ◽  
Concrete Structure ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Reinforced Concrete Structure ◽  
Acoustic Emission Monitoring ◽  
Emission Monitoring

scholarly journals Fracture Formation Evaluation of Reinforced Concrete Structure Using Acoustic Emission Technique

2013 ◽  
Vol 2013 ◽  
pp. 1-7
Author(s):  
Alireza Panjsetooni ◽  
Norazura Muhamad Bunnori ◽  
Amir Hossein Vakili ◽  
Zohreh Shirkhani ◽  
Zeinab Shirkhani
Keyword(s):  
Acoustic Emission ◽  
Reinforced Concrete ◽  
Concrete Structure ◽  
Structural Engineering ◽  
Load Ratio ◽  
Ratio Method ◽  
Reinforced Concrete Structure ◽  
Remaining Service Life ◽  
Fracture Formation ◽  
Viable Method

Acoustic emission (AE) is an important nondestructive evaluation (NDE) technique used in the field of structural engineering for both case local and global monitoring. In this study AE technique with a new approach was employed to investigate the process of fracture formation in reinforced concrete structure. A number of reinforced concrete (RC) one story frames were tested under loading cycle and were simultaneously monitored using AE. The AE test data was analyzed using the relaxation ratio and calm and load ratio method. Also, the relaxation ratio was dominated with approaching load to 58% of the ultimate load. In addition three levels of damage using calm and load ratio were distinguished. The trend of relaxation ratio and calm and load ratio method during loading and unloading showed that these methods are strongly sensitive with cracks growth in RC frame specimens and were able to indicate the levels of damage. Also, results showed that AE can be considered as a viable method to predict the remaining service life of reinforced concrete. In addition, with respect to the results obtained from relaxation ratio and, load and calm ratio indicated, a new chart is proposed.

Vibration diagnostics of reinforced concrete structure under quasistic loading

2020 ◽  
Author(s):  
I. Shardakov ◽  
I. Glot ◽  
A. Shestakov ◽  
R. Tsvetkov ◽  
V. Yepin ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Reinforced Concrete Structure ◽  
Vibration Diagnostics

Test and Study on Impact of Corrosion on Bond Force between Steel and Concrete

2010 ◽  
Vol 36 ◽  
pp. 176-181
Author(s):  
Xian Feng He ◽  
Shou Gang Zhao ◽  
Yuan Bao Leng
Keyword(s):  
Reinforced Concrete ◽  
Corrosion Rate ◽  
Concrete Structure ◽  
Steel Corrosion ◽  
Reinforced Concrete Structure ◽  
Bond Force ◽  
Steel Bars ◽  
Protection Layer ◽  
Corrosion Of Steel ◽  
The Impact

The corrosion of steel will have a bad impact on the safety of reinforced concrete structure. In severe cases, it may even be disastrous. In order to understand the impact of steel corrosion on the structure, tests are carried out to study corrosion and expansion rules of steel bars as well as the impact rules of corrosion on bond force between steel and concrete. The results show that wet and salty environment will result in steel corrosion; relatively minor corrosion will not cause expansion cracks of protection layers; when steel rust to a certain extent, it will cause cracks along the protection layer; when there exists minor corrosion in steel and the protection layer does not have expansion cracks, the bond force is still large and rapidly decreases as the corrosion rate increases.

Sign in / Sign up

Export Citation Format

Share Document