scholarly journals SEISMIC RESPONSE OF UNDERGROUND REINFORCED CONCRETE STRUCTURE

2006 ◽  
Vol 23 (1) ◽  
pp. 117s-124s ◽  
Author(s):  
Koji ITO ◽  
Satoru OHNO ◽  
Takashi MATSUDA
Keyword(s):  
Reinforced Concrete ◽  
Seismic Response ◽  
Concrete Structure ◽  
Reinforced Concrete Structure

scholarly journals Study of the Seismic Response on the Infill Masonry Walls of a 15-Storey Reinforced Concrete Structure in Nepal

Buildings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 39 ◽  
Author(s):  
André Furtado ◽  
Nelson Vila-Pouca ◽  
Humberto Varum ◽  
António Arêde
Keyword(s):  
Reinforced Concrete ◽  
Seismic Response ◽  
Concrete Structure ◽  
Numerical Study ◽  
Numerical Models ◽  
Ambient Vibration ◽  
Reinforced Concrete Structure ◽  
Infill Walls ◽  
Ambient Vibration Tests ◽  
Vibration Tests

Following the strong earthquake on April 25, 2015 in Nepal, a team from the University of Porto, in collaboration with other international institutions, made a field study on some of the most affected areas in the capital region of Kathmandu. One of the tasks was the study of a high-rise settle of buildings that were damaged following the earthquake sequence. A survey damage assessment was performed to a 15-storey infilled reinforced concrete structure, which will be detailed in the manuscript. Moreover, ambient vibration tests were carried out to determine the natural frequencies and corresponding vibration modes of the structure. The main aim of this manuscript is to present a numerical study concerning the influence of the masonry infill walls in the structure seismic response. For this, three numerical models were built discriminating the situations with and without damage and nondamaged infill walls. Validation and calibration of the numerical model was ensured by comparing the numerical frequencies with those obtained from ambient vibration tests. In addition, linear elastic analyses were carried out, using real accelerograms from the Gorkha earthquake to assess and quantify the major differences between the models in terms of inter-storey drifts ratios, inter-storey shear forces and seismic loadings.

scholarly journals Seismic Response of a Three-Dimensional Asymmetric Multi-Storey Reinforced Concrete Structure

2018 ◽  
Vol 8 (4) ◽  
pp. 479 ◽  
Author(s):  
Hyun-Kyu Lim ◽  
Jun Kang ◽  
Hongrak Pak ◽  
Ho-Seok Chi ◽  
Young-Geun Lee ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Seismic Response ◽  
Concrete Structure ◽  
Three Dimensional ◽  
Reinforced Concrete Structure

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.

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