Navigation

Recent Publications

More...

Home

Flexural behaviour of concrete-filled tubular structures

qqdeng's picture

qqdeng - Posted on 28 September 2017

Project Description: 

Concrete-filled tubular structures (CFT) have been used in buildings and bridges, due to its advantages in structural, material and construction aspects. The research study focuses on flexural behavior of concrete-filled lean duplex stainless steel, concrete-filled aluminum, and concrete-filled high strength steel tubular members.

Literature review and experimental investigation have been done. Numerical analysis will be conduct to further investigate the structural behavior of concrete-filled lean duplex stainless steel, concrete-filled aluminum, and concrete-filled high strength steel beams. A comprehensive parametric study has been planned to investigate the effects of difference material properties, concrete grades, width-to-thickness ratio and diameter-to-thickness etc. of the concrete-filled tubular structures. A new design approach and equations are expected to be proposed after the investigation.

Researcher name: 
YQ Deng
Researcher position: 
PhD candidate
Researcher department: 
Department of Civil Engineering
Researcher email: 
qqdeng@hku.hk
Research Project Details
Project Duration: 
09/2012 to 05/2018
Project Significance: 
1. Further understand the composite action between the concrete core and outside tubes in concrete-filled tubular structures under bending. 2. Explore the great application potential of concrete-filled tubular structures with new materials. 3. To propose a new design approach and equations for concrete-filled tubular structures.
Results Achieved: 
 Deng. Y.Q. and Young, B. (2016). “Experimental investigation of concrete-filled high strength steel square hollow section members subjected to bending”, Proceedings of SEMC2016: The Sixth International Conference on Structural Engineering, Mechanics and Computation, Cape Town, South Africa.  Deng. Y.Q. and Young, B. (2015). “Tests on concrete-filled lean duplex stainless steel tubular members subjected to bending”, Proceedings of the 8th International Conference on Advances in Steel Structures, ICASS’15, Lisbon, Portugal.
Remarks: 
Numerical analysis will be conduct to further investigate the structural behavior of concrete-filled structures. The HPC can help to run the Abaqus analysis much faster than the normal PC.