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논문 기본 정보

자료유형
학술저널
저자정보
김상연 (한국토지주택공사) 최보미 (한국토지주택공사)
저널정보
LH토지주택연구원 토지주택연구 LHI 저널 제30호
발행연도
2017.10
수록면
257 - 266 (10page)

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초록· 키워드

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LH has been using ultra high strength reinforcing bars (SD500 and SD600), since 2011. Such a change requires an adjustment of the old extra rates of bar splice to reflect use of ultra high strength reinforcing bars, as these rates had been set based on SD400 bars. It is particularly difficult to calculate precisely rebar lap-splice locations for large areas, such as those in apartment buildings. This research aims to adjust the extra rates of bar splice to reflect a reasonable rate; the rebar lap-splice length is not an exact estimation, but instead, an extra rates of bar splice is set and the rebar lap-splice length is increased by 2% (D10) - 7% (D25) depending on the bar size.
The subjects of this study are LH apartments undergoing frame construction. We studies the quantity estimation from the design drawings, and analyzed the settlement quantities of construction field. The results of the study revealed that, when each of the quantities are analyzed, consider adjusting the extra rates of bar splice of some rebar to 1% - 3.5%. This was caused by an overuse of reinforcing bars in onsite construction and the use of supporting bars that have not been reflected in the documents, among other reasons.
Based on the results of our study, an improvement plan for the current extra rates of bar splice seems to be necessary, cutting or raising the rate depending on the analysis of the data. Through this study, we expect to contribute to the calculation of reasonable construction costs, improvements in the quality of rebar work, and improvements in the capacity of design techniques for apartment buildings.

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ABSTRACT
1. 서론
2. 현장 시공 정산 철근수량 조사 결과 비교 분석
3. 결론
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