Articles

Mechanical properties of prestressed high-intensity concrete pile and pile caps combined

  • LI Yanyan ,
  • LI Zegao ,
  • LI Heqing ,
  • ZHAO Xiong
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  • 1. School of Civil Engineering, Hebei University of Technology, Tianjin 300401, China;
    2. Civil Engineering Technology Research Center of Hebei Province, Tianjin 300401, China;
    3. China Petroleum Pipeline Engineering Corporation, Langfang 065000, China

Received date: 2015-01-12

  Revised date: 2015-03-26

  Online published: 2015-07-15

Abstract

5 specimens of prefabricated pile combined with pile caps are tested under low cycle reciprocating loading. The failure patterns, the bearing capacity and the ductility, the forces in anchoring reinforcing bars, as well as the influence of different forms of the precast pile and pile cap anchoring reinforcing bars on the mechanical properties of the specimen are studied. It is shown that by anchoring reinforced connecting plate welded specimens, the inclined anchoring reinforcing bars can play a role in delaying the growth of cracks, increasing the bearing capacity of the specimen. The specimens with the pile body and the anchoring reinforcing bars can significantly improve the integrity of the pile cap assembly of the specimen and increase the bearing capacity, the ductility, and the deformation ability, and the bearing capacity of the anchoring reinforcing bars of oblique angle is better than that of the rectangular specimens.

Cite this article

LI Yanyan , LI Zegao , LI Heqing , ZHAO Xiong . Mechanical properties of prestressed high-intensity concrete pile and pile caps combined[J]. Science & Technology Review, 2015 , 33(12) : 44 -49 . DOI: 10.3981/j.issn.1000-7857.2015.12.007

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