Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 195, Issue -, Pages 323-339Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2018.11.057
Keywords
Non-steam-cured UHPC; Composite structure; Bonding connection; Interfacial property; Finite element model; Cohesive element
Categories
Funding
- National Natural Science Foundation of China [51725803]
- Tsinghua University Initiative Scientific Research Program [20161080103]
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The performance of ultra-high performance concrete (UHPC)-steel composite beams is dependent on the connection between the UHPC and steel. In this study, bending tests were conducted on UHPC-steel composite beams with different interfaces: UHPC directly cast on different plate textures, bonding using an epoxy-based adhesive, and traditional headed studs. The connection between the UHPC and the plates was extremely weak, but the adhesive performed well, failing after the steel beam yielded. Three-dimensional finite element models of the adhesively bonded beams were then established using ABAQUS and agreed well with the test results, successfully predicting the failure of the adhesive bonds. (C) 2018 Elsevier Ltd. All rights reserved.
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