Durability Design of Marine Concrete Structure Considering the Influence of Load

Abstract:

In this paper, based on accelerated testing indoors, under the action of bending tensile stress on a marine high-performance concrete chloride ion diffusion coefficient, the results show that: Subjected to bend under the action of tensile stress and do not withstand the test piece chloride diffusion coefficient increases with increasing stress levels, different tensile stress and does not bear the stress of the concrete chloride ion diffusion coefficient ratio (D_η/D₀) exponential relationship with the stress level (η). In addition, addition, for a domestic Bridge, preliminary design to determine typical parameters of components and their environment is proposed to consider the durability of concrete structure load control index calculation method, to establish a "design life - chloride ion diffusion coefficient controlled targets" the correspondence between, for similar projects designed to provide a reference durability.

• Periodical: Applied Mechanics and Materials (Volumes 744-746)
• Pages: 59-64
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.744-746.59
• Online since: March 2015
• Authors: Jian Bo Xiong*, Chun Lin Deng
• Keywords: Bending Tensile Stress, Diffusion Coefficient, Durability Design, Stress Level

References

[1] Concrete Structure Design and Construction Guide [S]. Beijing : China Building Industry Press, (2004)54-58.

[2] Life-365 Service Life Prediction Model TM and Computer Program for Predicting the Service Life and Life-Cycle Costs of Reinforced Concrete Exposed to Chlorides. January 8, (2008).

[3] DuraCrete, Final Technical Report, The European Union-Brite Euram III, Contract BRPR-CT95-0132, Document BE95-1347/R17, May, (2000).

[4] fib Model Code for Service Life Design, fib Bulletin 34, February (2006).

[5] SUN W, ZHANG Y M, YAN H D, et al. Damage and damage resistance with different strength grade under double damage factors [J]. Cem Conc Comp, 21(1999)439-442.

DOI: 10.1016/s0958-9465(99)00033-5

[6] MEHTA P K. Concrete in the marine environment[M]. [S. l. ]: Taylor&Francis Group (1991)5-10.

[7] Wangshengnian. harbour engineering concrete durability technology development and the present situation in China. [J]. Port &Waterway Engineering, 10(2010)1-7.

[8] Sun Wei. loads and environmental structural concrete durability and service life of the coupling [J]. Journal of Southeast University, 11 (36) (2006)7-14.

[9] Jin Weiliang, Yanyongdong, Wang Hailong. transfer in concrete under chloride ions in the load progress [J]. Journal of Portland. 38 (11)(2010) 2218-2224.

[10] Zhang Yitao, Fang Yonghao, Zheng Bo. load and other factors under combined action of durability of concrete progress [J]. Materials Review, 17 (9) (2003)48-50.

[11] Mu Ru . Freeze-thaw cycle and the external bending sStress , salt solution combined with the durability of concrete under life prediction [D]. Nanjing : Southeast University , 2000.

[12] Guan Yu. Single and life evaluation of high strength concrete under multiple damage factors [D]. Nanjing: Southeast University, (2002).

[13] B. Gerard, D. Breysse, A. Ammouche, O. Houdusse, O. Didry. Cracking and permeability of concrete under tension. Mater Struct, 29(1996)185-194.

DOI: 10.1007/bf02486159

[14] KONIN A, FRANFOIS R, ARLIGUIE G. Penetration of chlorides in relation to the micro-cracking state into reinforced ordinary and high strength concrete[J]. Mater Struct , 31(5) (1998)310-316.

DOI: 10.1007/bf02480672

[15] Fang Yonghao, Lee Chi ching, Zhang Yitao. Permeability of concrete under sustained pressure load [J]. Journal of the Chinese Ceramic Society, 33 (10) (2005)1281-1286.

[16] Zhao Shang, Gong Jin-Xin, water Jin feng. Water level fluctuation area subjected to bending load experimental study on chloride diffusion in concrete [J]. China Journal of Highway and Transport, 4(2007).

[17] Zhang Hanbin, Tang Minghan, Zhang Shaojun. Brief introduction of Hangzhou Bay Cross-Sea Bridge project and a number of technical programmes [J]. Prestressing technique, 4 (2006) 32-40.

[18] Wang Jun. research and application of concrete of Zhenjiang-Yangzhou Yangtze River highway bridge [D]. Nanjing: Hehai University, 2005: 11-14.

[19] He Shiqin, Gong Jin-Xin. Bending load effect on chloride diffusion in concrete [J]. Journal of building materials, 8 (2) (2005)134-138.

[20] Wang Shengnian, Pan Deqiang. Hong Kong-Zhuhai-Macao Bridge preliminary design and durability of concrete durability assessment test of main engineering topical research reports [R]. Guangzhou, four Institute of aviation engineering limited, (2010).