Experimental study on flexural behavior of rebar concrete beams in industrial building exceeding 50 years

2021 ◽  
pp. 103697
Author(s):  
Bin Huang ◽  
Zhengjie Cheng ◽  
Jitao Yao
Keyword(s):  
Experimental Study ◽  
Concrete Beams ◽  
Flexural Behavior ◽  
Industrial Building

Experimental study on the flexural behavior of concrete beams reinforced with bundled hybrid steel/FRP bars

2019 ◽  
Vol 197 ◽  
pp. 109443 ◽  
Author(s):  
Zeyang Sun ◽  
Linchen Fu ◽  
De-Cheng Feng ◽  
Apete R. Vatuloka ◽  
Yang Wei ◽  
...  
Keyword(s):  
Experimental Study ◽  
Concrete Beams ◽  
Flexural Behavior ◽  
Frp Bars

Experimental Study on Flexural Behavior of Reinforced Concrete Beams with Variety Lap Splices of Reinforcing Steel Bars

2016 ◽  
Vol 845 ◽  
pp. 132-139
Author(s):  
Mochamad Teguh ◽  
Novia Mahlisani
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Flexural Behavior ◽  
Reinforced Concrete Structures ◽  
Reinforcing Steel ◽  
Reinforcing Bars ◽  
Lap Splices ◽  
Steel Bars

The limited lengths of reinforcing bars have been commonly found in the practical construction of most reinforced concrete structures. The required length of a bar may be longer than the available stock of steel length. For maintaining desired continuity of the reinforcement in almost all reinforced concrete structures, some reinforcing bars should be carefully spliced. In the case of long flexural beam, bar installers end up with two or even more pieces of steel that must be spliced together to accomplish the desired steel length. An experimental study was conducted to investigate flexural behavior of reinforced concrete beams utilizing a variety lap splices of reinforcing steel bars under two-point loading. Five variations of lap splices of reinforcing steel bars positioned at midspan of tensile reinforcement of the beam were investigated. Welded joints and overlapped splices were used to construct the variation of lap splices of reinforcing steel bars. The general trend in crack pattern, the load deflection characteristics and the mode of failure of flexural beams under two-point loading were also observed. The flexural strength comprising load-displacement response, flexural crack propagation, displacement ductility is briefly discussed in this paper.

An Experimental Study on the Flexural Behavior of Post-Tensioned Concrete Beams with CFRP Tendons

2013 ◽  
Vol 351-352 ◽  
pp. 717-721 ◽  
Author(s):  
Woo Tai Jung ◽  
Jong Sup Park ◽  
Young Hwan Park
Keyword(s):  
Experimental Study ◽  
Ultimate Load ◽  
Concrete Beams ◽  
Concrete Structures ◽  
Flexural Behavior ◽  
Flexural Performance ◽  
Jacking Force ◽  
Post Tensioned

The exploitation of FRP tendon necessitates not only to improve the performances of the FRP tendon and anchoring device but also to examine its structural performances by applying it to various structures like concrete structures. This study applies CFRP tendon on internally and externally post-tensioned concrete specimens so as to observe their flexural performance considering the number of tendons and jacking force as test variables. The tests show that the externally post-tensioned specimens undergo lesser cracks with wider distribution of the cracks than the internally post-tensioned specimens with similar jacking force. In addition, the externally post-tensioned specimens with larger number of saddles experience smaller number of cracks with larger distribution. The specimens without saddle and the internally post-tensioned specimens with the same jacking force exhibit similar behavior until the yielding of the reinforcement to show different behaviors from the time at which the eccentricities of the tendons start to vary after yielding. The externally post-tensioned specimens with saddle provide increased crack load compared to the specimens without saddle, with an increase of approximately 25% of the ultimate load.

Experimental Study on Flexural Bearing Capacity of Concrete Beams Strengthened with NSM CFRP-PCPs Composite Bars

2014 ◽  
Vol 584-586 ◽  
pp. 908-911
Author(s):  
Li Hong Cheng ◽  
Jiong Feng Liang ◽  
Ming Hua Hu
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Flexural Behavior ◽  
Concrete Member ◽  
Near Surface ◽  
Reinforced Concrete Member ◽  
Bonding Area ◽  
Flexural Bearing Capacity ◽  
Near Surface Mounted

The flexural behavior of concrete beams strengthened with near surface mounted (NSM) CFRP-PCPs composite rebars was studied. Experimental results showed that embedded CFRP-PCPs reinforcement method can effectively improve strength, stiffness and cracks of the reinforced concrete member, and PCPs increased with concrete bonding area, thus avoiding the strip damage of the traditional embedded reinforcement.

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