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A platform for research: civil engineering, architecture and urbanism
Seismic performance study on a precast double-skin composite wall with circular CFSTs
Abstract A novel precast double-skin composite wall with circular concrete-filled steel tubes (DSCW-C) is proposed in this paper. The new structure comprehensively considers the advantages of the double-skin composite wall and the circular concrete-filled steel tubes (CFST). Two circular boundary CFST and two middle steel plates are welded together as the embedded steel components of DSCW-C. Four 1/2-scale specimens with 2 shear-span ratios and 2 connection methods were fabricated and subjected to cyclic loadings to investigate their seismic performance. The failure modes, strength capacity, deformability, and energy dissipation of the specimens were meticulously explored. The experimental results show favourable structural behaviours of the structures, especially in the specimens with full-section welding of the steel tubes. A bending-based strength capacity prediction method was then established correspondingly and showed sufficient accuracy with the DSCW-C specimens.
Highlights A novel precast double-skin composite wall with circular concrete-filled steel tubes (DSCW-C) is proposed. Four 1/2-scale specimens with different configurations in dimension and connection method were produced and tested. The ultimate drift angles of the DSCW-C specimens all achieved 4.0%, showing splendid deformability. A bending-based strength prediction method was employed and showed sufficient accuracy for DSCW-C.
Seismic performance study on a precast double-skin composite wall with circular CFSTs
Abstract A novel precast double-skin composite wall with circular concrete-filled steel tubes (DSCW-C) is proposed in this paper. The new structure comprehensively considers the advantages of the double-skin composite wall and the circular concrete-filled steel tubes (CFST). Two circular boundary CFST and two middle steel plates are welded together as the embedded steel components of DSCW-C. Four 1/2-scale specimens with 2 shear-span ratios and 2 connection methods were fabricated and subjected to cyclic loadings to investigate their seismic performance. The failure modes, strength capacity, deformability, and energy dissipation of the specimens were meticulously explored. The experimental results show favourable structural behaviours of the structures, especially in the specimens with full-section welding of the steel tubes. A bending-based strength capacity prediction method was then established correspondingly and showed sufficient accuracy with the DSCW-C specimens.
Highlights A novel precast double-skin composite wall with circular concrete-filled steel tubes (DSCW-C) is proposed. Four 1/2-scale specimens with different configurations in dimension and connection method were produced and tested. The ultimate drift angles of the DSCW-C specimens all achieved 4.0%, showing splendid deformability. A bending-based strength prediction method was employed and showed sufficient accuracy for DSCW-C.
Seismic performance study on a precast double-skin composite wall with circular CFSTs
Guan, Dongzhi (author) / Li, Sihao (author) / Yang, Sen (author) / Liu, Jiabin (author) / Guo, Zhengxing (author) / Wang, Yu (author)
2022-11-07
Article (Journal)
Electronic Resource
English
Seismic Performance of Precast Double-Skin Composite Shear Wall with Horizontal Connection Region
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Analytical model and design formulae of circular CFSTs under axial tension
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