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Steel and Composite Structures
  Volume 30, Number 4, February25 2019 , pages 315-325

Height-thickness ratio on axial behavior of composite wall with truss connector
Ying Qin, Gan-Ping Shu, Xiong-Liang Zhou, Jian-Hong Han and Yun-Fei He

    Double skin composite walls offer structural and economic merits over conventional reinforced concrete counterparts in terms of higher capacity, greater stiffness, and better ductility. This paper investigated the axial behavior of double skin composite walls with steel truss connectors. Full-scaled tests were conducted on three specimens with different height-to-thickness ratios. Test results were evaluated in terms of failure mode, load-axial displacement response, buckling loading, axial stiffness, ductility, strength index, load-lateral deflection, and strain distribution. The test data were compared with AISC 360 and Eurocode 4 and it was found that both codes provided conservative predictions on the safe side.
Key Words
    axial behavior; composite wall; truss connector; height-to-thickness ratio; structural performance
(1) Ying Qin, Gan-Ping Shu, Jian-Hong Han:
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, and National Prestress Engineering Research Center, School of Civil Engineering, Southeast University, Nanjing, China;
(2) Xiong-Liang Zhou, Yun-Fei He:
Zhejiang Southeast Space Frame Group Company Limited, Hangzhou, China.

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