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Steel and Composite Structures
  Volume 35, Number 4, May25 2020, pages 495-508
DOI: http://dx.doi.org/10.12989/scs.2020.35.4.495
 


Eccentric compressive behavior of novel composite walls with T-section
Ying Qin, Xin Chen, Wang Xi, Xingyu Zhu and Yuanze Chen

 
Abstract
    Double skin composite walls are alternatives to concrete walls to resist gravity load in structures. The composite action between steel faceplates and concrete core largely depends on the internal mechanical connectors. This paper investigates the structural behavior of novel composite wall system with T section and under combined compressive force and bending moment. The truss connectors are used to bond the steel faceplates to concrete core. Four short specimens were designed and tested under eccentric compression. The influences of the thickness of steel faceplates, the truss spacing, and the thickness of web wall were discussed based on the test results. The N-M interaction curves by AISC 360, Eurocode 4, and CECS 159 were compared with the test data. It was found that AISC 360 provided the most reasonable predictions.
 
Key Words
    composite wall; eccentric compressive loading; experimental behavior; T-shaped section; truss connector
 
Address
Ying Qin: Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing, China;
School of Civil Engineering, Southeast University, Nanjing, China
Xin Chen, Wang Xi, Xingyu Zhu and Yuanze Chen: School of Civil Engineering, Southeast University, Nanjing, China
 

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