국제초고층학회논문집 (International Journal of High-Rise Buildings)

  • 제4권4호
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  • Pages.283-290
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  • 2015
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  • 2234-7224(pISSN)
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  • 2288-9930(eISSN)
한국초고층도시건축학회 (Council on Tall Building and Urban Habitat Korea)
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Numerical Simulation of Temperature Gradients for the Mass Concrete Foundation Slab of Shanghai Tower

  • Gong, Jian (College of Civil Engineering, Tongji University) ;
  • Cui, Weijiu (College of Civil Engineering, Tongji University) ;
  • Yuan, Yong (College of Civil Engineering, Tongji University) ;
  • Wu, Xiaoping (Shanghai Construction Group Co., Ltd.)
  • 발행 : 2015.12.31
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초록

Crack control remains a primary concern for mass concrete structures, where the majority of cracking is caused by temperature changes during the hydration process. One-time pouring is a useful construction method for mass concrete structures. The suitability of this method for constructingon of the Shanghai Tower's mass concrete foundation slab of Shanghai Tower is considered here by a numerical simulation method based on a 6- meter- thick slab. Some of the conclusions, which can be verified by monitoring results conducted during construction, are as follows. The temperature gradient is greater in the vertical direction than in the radial direction, therefore, the vertical temperature gradient should be carefully considered for the purpose of crack control. Moreover, owing to cooling conditions at the surfaces and the cement mortar content of the slab, the temperatures and temperature gradients with respect to time vary according to the position within the slab.

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참고문헌

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