Study on the Deflection Behavior of HRBF RC Beams under Serviceability Limit States

Abstract:

In order to investigate the deflection behavior of concrete beam reinforced with high strength hot rolled bars of fine grains (HRBF) under deflection control condition, four concrete beams reinforced with HRBF400 and HRBF500 rectangle cross-section concrete beam static bending test were made. The results show that Mid-span deflection of concrete beams reinforced with HRBF400 under normal conditions still meets the requirement of current code while concrete beams reinforced with HRBF500 could not meets the requirement. Mid-span deflection was calculated by current code and compared with experimental value, the results show that calculate value was a little bigger than experimental value and tend to be safe, deflection could still calculated by the current code. Bearing capacity calculates formula under the conditions of deflection control was proposed, conception of component’s bearing capacity utilization coefficient (BCUC) was put forward. Effects of reinforcement strength, concrete grade, reinforcement ratio and depth-span ratio on BCUC were analyzed.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 265-269
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.265
• Online since: September 2014
• Authors: Wen Jie Ge*, Bi Yuan Wang, Da Fu Cao
• Keywords: Concrete Beams, Deflections, Flexural, Hot Rolled Bars of Fine Grains

References

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DOI: 10.14359/19940

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