Strain Analyzing of Concrete Creep of Xiaolangdi Sediment Tunnel Lining over Tensioning and Operation Periods

Chu Ne Sui; Jing Fu Kang; Xiao Zhe Wang; Xiao Ping Xu

doi:10.4028/www.scientific.net/AMM.357-360.928

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 357-360Strain Analyzing of Concrete Creep of Xiaolangdi...

Strain Analyzing of Concrete Creep of Xiaolangdi Sediment Tunnel Lining over Tensioning and Operation Periods

Abstract:

Xiaolangdi sediment tunnel is the first waterway engineering used un-bonded circumferential pre-stressed lining in China. Based on data obtained by concrete strain meters over tensioning and operation periods, strain of concrete creep of sediment tunnel lining was analyzed. The results show that concrete creep developed over tensioning period is 26.4% of total strain and 35.8% of elastic strain respectively; Creep strain had a good linear relation with pre-stress and loading time and can be calculated by εc=ασiti , which are agree with the measured results; Over operation period, concrete creep strain can be analyzed by rejecting the effect of temperature and water level from the total strain.

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Periodical:

Applied Mechanics and Materials (Volumes 357-360)

Pages:

928-931

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.357-360.928

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Online since:

August 2013

Authors:

Chu Ne Sui, Jing Fu Kang, Xiao Zhe Wang, Xiao Ping Xu

Keywords:

Concrete Creep, Elastic Strain, Resting Period, Tensioning Period

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