[1] Shi Bo, Zhao Guofan,. Reliability analysis for anchorage of reinforced concrete beamswith longitudinal cracks due to corrosion at anchorage zone [J]. Journal of Southeast University (English Edition), 2005, 21 (3): 336-341. [doi:10.3969/j.issn.1003-7985.2005.03.018]

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Reliability analysis for anchorage of reinforced concrete beamswith longitudinal cracks due to corrosion at anchorage zone()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

21

Issue:

2005 3

Page:

336-341

Research Field:

Civil Engineering

Publishing date:

2005-09-30

Info

Title:

Reliability analysis for anchorage of reinforced concrete beamswith longitudinal cracks due to corrosion at anchorage zone

Author(s):

Shi Bo;  Zhao Guofan

School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116023, China

Keywords:

reinforcement corrosion;  bond behavior;  anchorage;  reinforced concrete structure;  corrosion-induced crack

PACS:

TU311.2

DOI:

10.3969/j.issn.1003-7985.2005.03.018

Abstract:

An anchorage reliability analysis approach for simply supported reinforced concrete beams under corrosion attack in the anchorage zone is developed.The first-order second-moment method is employed to analyze the effects of various factors on the anchorage reliability.These factors include both the length and width of cover cracking due to reinforcement corrosion, the cover thickness, the anchorage length, and the stirrup ratio.The results show that the effect of corrosion-induced crack length on the reliability index for anchorage, β₀, is negligible when the crack on the concrete surface is just appearing, but with the crack widening, the β₀ value is reduced significantly;the considerable changes in β₀ result from a variation in cover depth and anchorage length;the effect of changes in the diameter or space of stirrups on the anchorage resistance is very limited, and the variation in β₀ is also very low.

References:

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[5] Xu Youlin, Shen Wendu, Wang Hong.An experimental study of bond-anchorage properties of bars in concrete [J].Journal of Building Structures, 1994, 15(3):26-37.(in Chinese)
[6] Wang Linke, Tao Feng, Wang Qinglin, et al.Experimental study on bond and anchorage of corroded reinforcement in concrete [J].Industrial Construction, 1996, 26(4):14-16.(in Chinese)
[7] Zhang Weiping, Zhang Yu.Test study on deterioration model of bond behavior between corroded reinforcement and concrete [J].Building Structure, 2002, 32(1):31-33.(in Chinese)
[8] Shao Zhuomin, Xu Youlin.The study and design proposition for bond-anchorage of reinforced concrete [J].Building Structure, 1986, 16(4):2-12.(in Chinese)
[9] China Highway Planning and Design Institute. GB/T 50283—1999 Unified standard for reliability design of highway engineering structures [S].Beijing: China Planning Press, 1999.(in Chinese)
[10] Al-Sulaimani G J, Kaleemullah M, Basunbul L A, et al.Influence of corrosion and cracking on bond behavior and strength of reinforced concrete members [J].ACI Structural Journal, 1990, 87(2):220-231.

Memo

Memo:

Biographies: Shi Bo(1971—), male, graduate;Zhao Guofan(corresponding author), male, professor, academician of Chinese Academy of Engineering, zhaogf@dlut.edu.cn.

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