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Title |
Comparison of Pure Reinforcement Quantity to Development & Splice Reinforcement Quantity using High-strength Reinforcing Bars
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Authors |
조승호(Seung-Ho Cho) ; 나승욱(Seung-Uk Na) ; 노영숙(Young-Sook Roh) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.1.072 |
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Keywords |
고강도 철근 ; 철근량 분석 ; 정착 및 이음 철근 High-strength rebar ; Rebar quantity analysis ; Development & Splice reinforcement |
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Abstract |
Whilst it is common to construct high-rise buildings and long-span structures in the construction and building industry, there might be a number of problems such as excessive re-bars arrangement, deterioration of concrete quality, unnecessary quantity take-off and so forth. As these types of buildings and structures are getting more popular, it is widespread to apply high-strength materials such as high-strength concrete and re-bars to sustain durability and stability. This research aims to investigate the effectiveness of the high-strength reinforcing bars on the underground parking in a rigid-frame structure. In this study, the reinforcing bars with different yield strength were applied to corroborate the usefulness and practicability of the high-strength re-bars on the underground parking in a rigid-frame structure. The test results show that the quantity of reinforcement bars is lowered, as the yield strength of the re-bars are grown in general. However, the quantity of reinforcement bars on the development and splice has a tendency to increase slightly. Despite of the increase of the development and splice, the total quantity of reinforcing bars was reduced since the increasing ration of the pure quantity is higher than the development and splice. Base on the test results, it would be possible to achieve the reduction of reinforcing bars arrangement and lowering the amount of work to be done during a construction phase. Moreover, the reduced amount of bar arrangement will make it possible to improve workability and constructability of reinforced concrete structures. Ultimately, we will be able to attain improved quality and efficiency of construction using reinforced concrete.
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