Computers and Concrete
Volume 24, Number 3, 2019, pages 237-247
DOI: 10.12989/cac.2019.24.3.237
Finite element modeling of bond-slip performance of section steel reinforced concrete
Biao Liu , Guo-Liang Bai
Abstract
The key issue for the finite element analysis (FEA) of section steel reinforced concrete (SRC) structure is how to consider the bond-slip performance. However, the bond-slip performance is hardly considered in the FEA of SRC structures because it is difficult to achieve in the finite element (FE) model. To this end, the software developed by Python can automatically add spring elements for the FE model in ABAQUS to considering bond-slip performance. The FE models of the push-out test were conducted by the software and calculated by ABAQUS. Comparing the calculated results with the experimental ones showed that: (1) the FE model of SRC structure with the bond-slip performance can be efficiently and accurately conducted by the software. For the specimen with a length of 1140 mm, 3565 spring elements were added to the FE model in just 6.46s. In addition, different bond-slip performance can also be set on the outer side, the inner side of the flange and the web. (2) The results of the FE analysis were verified against the corresponding experimental results in terms of the law of the occurrence and development of concrete cracks, the stress distribution on steel, concrete and steel bar, and the P-S curve of the loading and free end.
Key Words
section steel reinforced concrete structure; bond-slip performance; finite element analysis of ABAQUS; spring element
Address
- Biao Liu — School of Civil Engineering, Xi\'an University of Architecture & Technology, No. 13 Yanta Road, Xi\'an, Shaanxi Province, P.R. China
- Guo-Liang Bai — School of Civil Engineering, Xi\'an University of Architecture & Technology, No. 13 Yanta Road, Xi\'an, Shaanxi Province, P.R. China; Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education (XAUAT), No. 13 Yanta Road, Xi\'an, Shaanxi Province, P.R. China; Shaanxi Key Lab of Structure and Earthquake Resistance (XAUAT), No. 13 Yanta Road, Xi\'an, Shaanxi Province, P.R. China, Collaborative Innovation Center for Assembled Buildings in Western China (XAUAT), No. 13 Yanta Road, Xi\'an, Shaanxi Province, P.R. China
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