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- W2348278393 abstract "Based on the flexure experiment results of 10 bonded post-tensioned prestressed concrete beams and 2 concrete beams,the failure pattern,stress of the nonprestressed steel bar,concrete strain and ductility of post-tensioned prestressed concrete beams with 500MPa bars have been investigated.The formulas for calculating cracking moment,flexural capacity,deflection and crack width in Code for design of concrete structures(GB50010-2010) are also verified.The results indicate that for beams with appropriate longitudinal steel ratio,500MPa steel bars can reach their yield point under the bending limit state;the distribution of average concrete strain accords with plane section hypothesis;the value of ξp needs to be restricted to guarantee good ductility,which decreases with the development of ξp;the cracking moment and flexural capacity can be calculated following GB50010-2010;but the deflection calculated value is smaller,the average crack width calculated value is on the high side compared with the observations." @default.
- W2348278393 created "2016-06-24" @default.
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- W2348278393 date "2012-01-01" @default.
- W2348278393 modified "2023-09-25" @default.
- W2348278393 title "Experiments and Analysis of Flexural Performance of Prestressed Concrete Beams with 500MPa Steel Bars" @default.
- W2348278393 hasPublicationYear "2012" @default.
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