Revision for Concrete Members Crack Control Criteria Based on Durability Demand

Yang Li

doi:10.4028/www.scientific.net/AMM.578-579.1489

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 578-579Revision for Concrete Members Crack Control...

Revision for Concrete Members Crack Control Criteria Based on Durability Demand

Abstract:

Based on Monte Carlo method, the concrete durability reliability indexes for typical concrete members in 50-year-period of service were calculated under normally moist environment conditions. By taking the typical concrete members under normally moist environment conditions as example, the fuzzy reliability indexes based on durability for crack control criteria provided in GB 50010-2010 were calculated. The calculation results show that the durability reliability indexes are mainly lower than crack control reliability indexes for normally moist environment conditions. To realize the goal that the durability design safety level can be generally closest to crack control safety level, one revision advice was presented for present concrete design code GB 50010-2010 to properly lower the crack control safety level in normally moist environment conditions: the present short period crack width enlargement coefficient should be multiplied with 0.85 so that the calculation guarantee rate will be lowered to 85% for flexural members.

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Periodical:

Applied Mechanics and Materials (Volumes 578-579)

Pages:

1489-1492

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.578-579.1489

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Online since:

July 2014

Authors:

Yang Li*

Keywords:

Calculation Guarantee, Concrete Cover Thickness, Crack Control, Durability, Reliability Index

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* - Corresponding Author

References

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