STRESS OF REINFORCEMENT IN REINFORCED CONCRETE FLEXURAL MEMBERS WITH CONTROLLED CRACK WIDTH

Lu Qinxian; Hu Di

doi:10.13204/j.gyjz200804013

Volume 38 Issue 4

Dec. 2014

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Lu Qinxian, Hu Di. STRESS OF REINFORCEMENT IN REINFORCED CONCRETE FLEXURAL MEMBERS WITH CONTROLLED CRACK WIDTH[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(4): 46-49. doi: 10.13204/j.gyjz200804013

Citation:

Lu Qinxian, Hu Di. STRESS OF REINFORCEMENT IN REINFORCED CONCRETE FLEXURAL MEMBERS WITH CONTROLLED CRACK WIDTH[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(4): 46-49. doi: 10.13204/j.gyjz200804013

Lu Qinxian, Hu Di. STRESS OF REINFORCEMENT IN REINFORCED CONCRETE FLEXURAL MEMBERS WITH CONTROLLED CRACK WIDTH[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(4): 46-49. doi: 10.13204/j.gyjz200804013

Citation:

Lu Qinxian, Hu Di. STRESS OF REINFORCEMENT IN REINFORCED CONCRETE FLEXURAL MEMBERS WITH CONTROLLED CRACK WIDTH[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(4): 46-49. doi: 10.13204/j.gyjz200804013

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STRESS OF REINFORCEMENT IN REINFORCED CONCRETE FLEXURAL MEMBERS WITH CONTROLLED CRACK WIDTH

doi: 10.13204/j.gyjz200804013

Lu Qinxian,
Hu Di

1.
School of Civil and Architecture Engineering Central South University,Changsha 410075

Received Date: 2007-06-12
Publish Date: 2008-04-20

Abstract

Abstract

After the influencing factors on crack width in reinforced concrete members are analyzed, the formulas to calculate the limited stress of reinforcement to control the crack width are derived, and the succinct formulas of computing allowable stress of reinforcement are put forward by considering the maximum crack width and typical values of influencing factors, also the charts can be made. The control of crack width will be achieved if the stress is less than the allowable value, thus avoid calculating the crack width under service load. An example is used to compare and analysis theoretical results obtained from various codes.
- reinforced concrete flexural members,
- crack width,
- limited stress in reinforcement,
- influencing factors

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References(11)

References

[2] GB 50010-2002 混凝土结构设计规范

江见鲸. 混凝土结构工程学. 北京: 中国建筑工业出版社, 1998:237-255

[3] JTG D62-2004 公路钢筋混凝土和预应力混凝土桥涵设计规范

[4] TB 10002. 3-2005 铁路桥涵钢筋混凝土和预应力混凝土结构设计规范

[5] ACI Committ ee 318. Building Code Requirements for Reinf orcedConcrete (ACI318-02) and Commentary (ACI318R-02). American Concrete Institute, Farmingt on Hills., Mich., 2002

[6] AASHTO LRFD Bridge Design Specificat ion (2nd Edition ). American Association of State Highway and Transportation Off icials. Washington D.

C., 1998

[7] Gergely P, d Lut z L A. Maximum Crack Width in Reinforced Concrete Flexural Members. see Gergely P, d Lut z L A. Causes, Mechanism, and

Control of Cracking in Concrete, SP-20. Detroit: American Concrete Institute, 1968: 87-117

[8] Frosch R J. Another Look at Cracking and Crack Cont rol in Reinforced Concrete. ACI Structural Journal, 1999, 96(3) : 437-442

[9] Darwin D, et. al. Debat e: Crack Width, Cover, and Corrosion.Concrete International, 1985, 8(5) : 20-35

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