CRACK CONTROL OF PRESTRESSED CONCRETE STRUCTURES BASED ON NOMINAL TENSILE STRESS METHOD

Shi Mingzheng

doi:10.13204/j.gyjz201311015

Volume 43 Issue 11

Dec. 2014

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Shi Mingzheng. CRACK CONTROL OF PRESTRESSED CONCRETE STRUCTURES BASED ON NOMINAL TENSILE STRESS METHOD[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 64-66,11. doi: 10.13204/j.gyjz201311015

Citation:

Shi Mingzheng. CRACK CONTROL OF PRESTRESSED CONCRETE STRUCTURES BASED ON NOMINAL TENSILE STRESS METHOD[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 64-66,11. doi: 10.13204/j.gyjz201311015

Shi Mingzheng. CRACK CONTROL OF PRESTRESSED CONCRETE STRUCTURES BASED ON NOMINAL TENSILE STRESS METHOD[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 64-66,11. doi: 10.13204/j.gyjz201311015

Citation:

Shi Mingzheng. CRACK CONTROL OF PRESTRESSED CONCRETE STRUCTURES BASED ON NOMINAL TENSILE STRESS METHOD[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 64-66,11. doi: 10.13204/j.gyjz201311015

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CRACK CONTROL OF PRESTRESSED CONCRETE STRUCTURES BASED ON NOMINAL TENSILE STRESS METHOD

doi: 10.13204/j.gyjz201311015

Shi Mingzheng

1.
Architectural Design and Ｒesearch Institute of Southeast University,Nanjing 210096,China

Received Date: 2012-11-12
Publish Date: 2013-11-20

Abstract

Abstract

Based on the formula of the crack width in the present code,the nominal tensile stress value corresponding to the limit of crack width was studied. The influences of cross section height,the cover thickness,concrete strength grade,non-prestressed reinforcement ratio,diameters of non-prestressed reinforcement and prestress degree on the normal tensile stress of the given crack width were also discussed. Then the influence coefficients of these parameters on the normal tensile stress values were concluded. The comprehensive influence coefficient on the normal tensile stress was obtained by multiplication of the single influence coefficient of the parmeters. In the end,an example was calculated by using the method of normal tensile stress and the formula of the code. The result shows that the method of normal tensile stress is a simple,convenient and creditable method on the crack control of the prestressed concrete structures.
- prestressed concrete,
- nominal tensile stress,
- crack control,
- crack width

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References(8)

References

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