FINITE ELEMENT ANALYSIS OF MECHANICAL PROPERTIES OF SPECIMEN WITH UHPC AND STUD CONNECTOR

Authors

  • Long Liu Anyang Institute of Technology
  • Songqiang Wan Anyang Institute of Technology
  • Shuwen Yao Anyang Institute of Technology
  • Xinzhen Zhao Anyang Institute of Technology
  • Jinyan Ma Anyang Institute of Technology

DOI:

https://doi.org/10.14311/CEJ.2022.01.0008

Keywords:

Push out test, UHPC, Stud connector, Finite element, Reinforcement

Abstract

UHPC is different from ordinary concrete for mechanical properties. To study the stress state of stud connector when UHPC is used to strengthen RC beam and its influence on bearing capacity of the strengthened beam, in this paper, ABAQUS was adopted first to simulate the push-out test of  stud to verify  accuracy of the finite element model. The nonlinearity of materials and contact conditions was considered in the model, and then three parameters including concrete strength, stud length and stud diameter were studied. Results showed the finite element model established by surface to surface contact method was possible to simulate the force and failure of the stud connector. UHPC could improve the  bearing capacity of the stud specimens obviously, and the length of stud had little effect on bearing capacity of stud while failure of the stud may occur if length of the stud was too small. The increase of stud diameter could improve bearing capacity of elastic working stage.

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Published

2022-04-30

How to Cite

Liu, L., Wan, S., Yao, S., Zhao, X., & Ma, J. (2022). FINITE ELEMENT ANALYSIS OF MECHANICAL PROPERTIES OF SPECIMEN WITH UHPC AND STUD CONNECTOR. Stavební Obzor - Civil Engineering Journal, 31(1), 100–109. https://doi.org/10.14311/CEJ.2022.01.0008

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Articles