Enhancement of flexural performance of RC beams with steel wire rope by external strengthening technique

Author(s):  
Yanuar Haryanto ◽  
Ay Lie Han ◽  
Hsuan-Teh Hu ◽  
Fu-Pei Hsiao ◽  
Banu Ardi Hidayat ◽  
...  
2018 ◽  
Vol 80 (5) ◽  
Author(s):  
Yanuar Haryanto ◽  
Buntara Sthenly Gan ◽  
Arnie Widyaningrum ◽  
Nanang Gunawan Wariyatno ◽  
Ari Fadli

This work investigated the performance of steel wire rope as an external strengthening for reinforced concrete beams with different end-anchor types. A study is conducted on reinforced concrete beams with the size of 100 mm x 150 mm x 1000 mm, consisting of 1 beam without strengthening (BTP); 1 beam strengthened with 2 steel wire ropes of diameter 6 mm with end-anchor type 1 (BPA1); and 1 beam strengthened with 2 steel wire ropes of diameter 6 mm with end-anchor type 2 (BPA2). It is found that the external strengthening of reinforced concrete beams using steel wire rope has the advantage of better serviceability due to its higher ductility than the beam without strengthening. The load-carrying capacity of reinforced concrete beams, which are externally strengthened with steel wire ropes, shows a significant increase of up to 60%. All specimens meet the minimum ductility requirements; in this case, the strengthening beams have other advantages, i.e. improved performance in preventing brittle failure. In this study, the increased stiffness is associated proportionately with the increased strength. This is supported by previous findings which suggest that the stiffness cannot be completely separated and independent of the strength. The failure in all specimens appeared in the same phases and all specimens experienced flexural failure. The ratios of end-anchor type 1 to end-anchor type 2 were close to 1 for all the parameters studied, which means that both types of end-anchor make an equally good contribution to the performance of steel wire rope.


2010 ◽  
Vol 62 (4) ◽  
pp. 253-265 ◽  
Author(s):  
G. Wu ◽  
Z.S. Wu ◽  
J.B. Jiang ◽  
Y. Tian ◽  
M. Zhang

2018 ◽  
Vol 165 ◽  
pp. 28-44 ◽  
Author(s):  
Md. Akter Hosen ◽  
Mohd Zamin Jumaat ◽  
U. Johnson Alengaram ◽  
N.H. Ramli Sulong

2012 ◽  
Vol 238 ◽  
pp. 185-189
Author(s):  
Chi Yun Zhao ◽  
Shi Min Huang ◽  
Qiu Lai Yao ◽  
Ya Jing Chen

This paper presents the results of the experimental investigation on the flexural performance of beams strengthened with steel wire-polymer mortar. A total of five rectangular doubly RC beams were constructed and tested to failure. The test variables were numbers of reinforcement layers and configuration. A new accurate method to measure elongation of steel wire was proposed. Then the interfacial bond strength between concrete and polymer mortar was tested. The failures of the specimens were all bending failures and polymer mortar layer debonded from beam was not occurred. Only a few wires were pulled off in failure. The polymer mortar and concrete has a better bonding effect. Steel wires play the more effective tensile roles of themselves. After strengthened, the RC beams improve their bending bearing capacity and bending stiffness, delay the cracks occur and crack development.


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