Open AccessNumerical Analysis of Anchor Bolt Pull-out Test by Cohesive Zone Model Combined with Finite Element Method
Author(s) -
Erqiang Li,
Jili Feng,
Hao Xie,
Hongchang Zhang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/570/5/052014
Subject(s) - finite element method , structural engineering , anchor bolt , cohesive zone model , materials science , stress (linguistics) , shear (geology) , direct shear test , shear strength (soil) , engineering , geotechnical engineering , geology , composite material , philosophy , linguistics , soil science , soil water
In this paper, to characterize the pull-out process of anchor in concrete, we combined the cohesive zone model and the finite element method. The embedding cohesive elements simulate the contact effect of the bolt interface. The results show that the numerical predictions are in good agreement with the experimental results. With the change of pull-out load, the shear stress of anchorage interface changes correspondingly until it is destroyed, which is consistent with the laboratory test. The strengths of the anchorage material and the concrete have a positive correlation with the bond strength of anchor bolt. The radial and lateral stresses acting along the bolt are similar. Therefore, in bolt anchorage, the bond strength increases as the radial (lateral) stresses increase.