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Experemental Study on Shear Capacity of Reinforced Concrete Beam with 500MPa Hot Rolled Bars of Fine Grains

Author: LiPeng
Tutor: WangMingPing
School: Qingdao Technological University
Course: Structural Engineering
Keywords: 500MPa fine grain steel bars Concrete beams Diagonal cracks Deflection Shear capacity During normal use
CLC: TU375.1
Type: Master's thesis
Year: 2009
Downloads: 11
Quote: 1
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Abstract


500MPa fine grain steel bars is the adoption of our new research and development of control the steel rolling temperature technology to produce a new fine- grain steel, it has high strength , ductility and good , reliable and concrete bond properties of new reinforced . New standard reinforced concrete steel hot-rolled ribbed steel \information not yet included in our \The research of this subject will 500MPa fine grain steel bars provide a theoretical basis for the experimental basis . 16 500MPa fine grain steel bars , a 400MPa and a 600MPa reinforced concrete beams to stirrups concentrated loads under test , the observation of the different concrete strength , different shear span ratio , different the stirrups intensity , different with cracks , deflection, bearing capacity and failure modes of the test piece under the condition of the hoop rate, different cross-sectional dimensions , different cross-sectional shape , and the measured value and the calculated value of the formula were compared. The tests showed that the 500MPa fine grain shear behavior of reinforced concrete members , has good mechanical properties of ordinary reinforced concrete members . The tests showed 500MPa fine grain steel bars for stirrups test beam , in accordance with the design of concrete structures under shear capacity formula calculation results in good agreement with the experimental results , strength underutilized . The shows under concentrated loads configuration 500MPa fine grain steel stirrups concrete shear component can still be calculated according to the design of concrete structures \Research and analysis of component test results show that in the limit state under normal use , the design of concrete structures \diagonal crack width limit requirements . And 500MPa fine grain steel stirrup design strength value used for discussion and analysis of the test results , 500MPa fine grain high-strength steel , it is recommended that the norms shear capacity formula of its design strength f yv = 420MPa.

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CLC: > Industrial Technology > Building Science > Building structure > Concrete structure,reinforced concrete structure > Reinforced concrete structures > Girder
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