TY - GEN
T1 - Experimental Study on Seismic Behavior of Concrete-Filled Double-Skin Steel Tubular Structures
AU - Guo, Ting
AU - Xu, Li Yan
AU - Yang, Yue
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.
PY - 2025
Y1 - 2025
N2 - Reactor plant structures in nuclear power plants must withstand the high temperatures and pressures generated during nuclear reactions and potential seismic impact. Due to its excellent lateral stiffness and buckling resistance, the concrete-filled double-skin steel tubular (CFDST) structure can effectively prevent structural damage caused by high temperature, high pressure, and vibration, and ensure the integrity of the plant throughout its service life. However, in the engineering application of CFDST to reactor pressure vessels, the seismic behavior of CFDST columns characterized by large structural scale, high hollow ratio, and low steel ratio has not been fully stressed. In this study, two 1/8-scaled specimens of CFDST are designed for cyclic loading tests. The hysteresis curves, skeleton curve, and energy dissipation capacity were analyzed, and the effects of axial compression ratio on the seismic behavior of the structure were investigated. The test shows that CFDST has high ultimate capacity and good deformation ability due to the composite action of steel tubes and concrete.
AB - Reactor plant structures in nuclear power plants must withstand the high temperatures and pressures generated during nuclear reactions and potential seismic impact. Due to its excellent lateral stiffness and buckling resistance, the concrete-filled double-skin steel tubular (CFDST) structure can effectively prevent structural damage caused by high temperature, high pressure, and vibration, and ensure the integrity of the plant throughout its service life. However, in the engineering application of CFDST to reactor pressure vessels, the seismic behavior of CFDST columns characterized by large structural scale, high hollow ratio, and low steel ratio has not been fully stressed. In this study, two 1/8-scaled specimens of CFDST are designed for cyclic loading tests. The hysteresis curves, skeleton curve, and energy dissipation capacity were analyzed, and the effects of axial compression ratio on the seismic behavior of the structure were investigated. The test shows that CFDST has high ultimate capacity and good deformation ability due to the composite action of steel tubes and concrete.
KW - Composite structures
KW - Concrete-filled double-skin steel tubular structures
KW - Experimental tests
KW - Seismic behaviour
UR - https://www.scopus.com/pages/publications/105009220128
U2 - 10.1007/978-981-96-4698-2_41
DO - 10.1007/978-981-96-4698-2_41
M3 - 会议稿件
AN - SCOPUS:105009220128
SN - 9789819646975
T3 - Lecture Notes in Civil Engineering
SP - 421
EP - 426
BT - Proceedings of the 1st International Conference on Engineering Structures, ICES 2024
A2 - Yang, Jie
A2 - Fu, Jiyang
A2 - Liu, Airong
A2 - Ng, Ching-Tai
PB - Springer Science and Business Media Deutschland GmbH
T2 - 1st International Conference on Engineering Structures, ICES 2024
Y2 - 8 November 2024 through 11 November 2024
ER -