TY - JOUR
T1 - Negative bending behavior of web-embedded U-shaped steel-concrete composite beams
AU - Hu, Shengwen
AU - Yang, Yuanlong
AU - Nie, Wanqian
AU - Yang, Qingjie
AU - Chen, Yohchia Frank
N1 - Publisher Copyright:
© 2024 Institution of Structural Engineers
PY - 2024/3
Y1 - 2024/3
N2 - This paper discusses the negative bending behavior of a new type of web-embedded U-shaped steel-concrete composite beams (WUSCBs). Considering the installation of web-embedded shear connectors, a negative bending moment test was performed on seven WUSCB specimens. The web-embedded shear connectors in the WUSCB are shown to have good shear connection performance and maintain the overall function of WUSCBs. The failure progression of the specimens is characterized by the cracking, yielding, and buckling loads of 0.22Pu, 0.79Pu, and 0.92Pu, respectively. Negative bending failure was observed in the WUSCBs, evidenced by the steel plate yielding and concrete slab cracking. The WUSCBs were found to have good ductility and deformability under negative bending. A finite element model was established to validate the experimental results. The calculation methods for negative bending capacity and effective flange width are proposed; and the calculated results are in good agreement with the test results. A suggested value of moment modulation at the end of continuous beam is proposed.
AB - This paper discusses the negative bending behavior of a new type of web-embedded U-shaped steel-concrete composite beams (WUSCBs). Considering the installation of web-embedded shear connectors, a negative bending moment test was performed on seven WUSCB specimens. The web-embedded shear connectors in the WUSCB are shown to have good shear connection performance and maintain the overall function of WUSCBs. The failure progression of the specimens is characterized by the cracking, yielding, and buckling loads of 0.22Pu, 0.79Pu, and 0.92Pu, respectively. Negative bending failure was observed in the WUSCBs, evidenced by the steel plate yielding and concrete slab cracking. The WUSCBs were found to have good ductility and deformability under negative bending. A finite element model was established to validate the experimental results. The calculation methods for negative bending capacity and effective flange width are proposed; and the calculated results are in good agreement with the test results. A suggested value of moment modulation at the end of continuous beam is proposed.
UR - https://www.scopus.com/pages/publications/85184658238
UR - https://www.scopus.com/pages/publications/85184658238#tab=citedBy
U2 - 10.1016/j.istruc.2024.105979
DO - 10.1016/j.istruc.2024.105979
M3 - Article
AN - SCOPUS:85184658238
SN - 2352-0124
VL - 61
JO - Structures
JF - Structures
M1 - 105979
ER -