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   CN 44-1745/U

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Tunnel Construction ›› 2012, Vol. 32 ›› Issue (增刊2): 61-65.DOI: 10.3973/j.issn.1672-741X.2012.z2.012

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Application of Noncohesive Prestressed Steel in Crack Control of  Superlarge, Superwide and Heteromorphic Side Wall Structures

GUO Hongxia1, DONG Zilong2, ZHANG Lei2   

  1. (1. The 3rd Engineering Co., Ltd. of China Railway Tunnel Group, Shenzhen 518052, Guangdong , China; 2. Zhejiang Tohigh Building Materials Group Co., Ltd., Hangzhou 310011, China)
  • Received:2012-07-26 Revised:2012-09-10 Online:2012-12-20 Published:2013-02-19

Abstract:

Cracks often occur to concrete structure of basement induced by temperature difference. The side wall of the basement structure is prestressed by means of noncohesive method and then the main structure is reinforced. The prestress design is further optimized. The crack problems of concrete structure are discussed. The crack of the concrete structure of side wall is under effective control.

Key words: noncohesive prestress, superlarge, superwide and heteromorphic side wall, concrete structure, crack control