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논문 기본 정보

자료유형
학술저널
저자정보
Xianhua Yao (North China University of Water Resources and Electric Power) Junfeng Guan (North China University of Water Resources and Electric Power) Lei Zhang (Yellow River Institute of Hydraulic Research) Junyi Xi (North China University of Water Resources and Electric Power) Lielie Li (North China University of Water Resources and Electric Power)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.15 No.6
발행연도
2021.11
수록면
707 - 734 (28page)

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초록· 키워드

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Crack distribution and widths were experimentally examined in a series of reinforced concrete (RC) beams. Concretes of different strengths were used, and beams were reinforced with 600 MPa yield strength steel bars. The features of cracks, which need to be considered in the design, were determined by using statistical analysis of different crack patterns observed in RC beams. The methods for determining the depth of effective influence zone of 600 MPa steel bars in RC beams were experimentally obtained. Based on the experimental data obtained in this study and from the data on RC beams with 335-600 MPa yield strength steel bars from other studies, the applicability of different formulas for the determination of the maximum widths (provided in codes and by scholars) was analyzed. Methods for the calculation of average crack spacing and maximum crack widths in RC beams with steel bars of various yield strengths were proposed. A unified formula for the calculation of maximum crack width in such beams was also established.

Highlights
• Reinforced concrete beam cracking behavior was experimentally examined with a new type of seismic bar.
• New methods for the calculation of average crack spacing and maximum crack width were presented.
• A unified formula for the calculation of maximum crack width was proposed.
#crack width #crack spacing #reinforced concrete beam #600 MPa steel bar #concrete strength

목차

Abstract
1. Introduction
2. Experimental Study on RC Beams with 600 MPa Steel Bars
3. Analysis and Discussion of the Test Results for RC Beams with 600 MPa Steel Bars
4. Proposed Formulas for the Calculation of Average Crack Spacing
5. Formulas for the Calculation of Maximum Crack Width
6. A Unified Formula for the Calculation of Maximum Crack Width for RC Beams with 335-600 MPa-Grade Steel Bars
7. Conclusions
References

참고문헌 (44)

참고문헌 신청
ACI Committee / 1971 / Building code requirement for structural concrete (ACI 318–71) / American Concrete Institute google schola ACI Committee / 1995 / Building code requirement for structural concrete (ACI 318–95) and commentary (ACI 318R-95) / American Concrete Institute google schola ACI Committee / 1999 / Building code requirement for structural concrete (ACI 318–99) and commentary (ACI 318R-99) / American Concrete Institute google schola ACI Committee / 2014 / Building code requirement for structural concrete (ACI 318–14) and commentary (ACI 318R-14) / American Concrete Institute google schola 2014 / ASTM A706/A706M-14. Standard specification for deformed and plain low-alloy steel bars for concrete reinforcement / ASTM International google schola

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