科研之友
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摘要
The study on bond-slip performance at the interface of structures concrete filled steel tubes (CFST) is very important to perfect the theory of CFST and the FEM analytical models. The characters and research situation of bond-slip performance at the interface of structures CFST are introduced, the push-out test and push-off test with the former research achievement are summarized. The factors, such as concrete strength, steel tube sections, steel tube inner face status and mechanics behaviors of members, which effect the bond-slip performance, are reviewed. On the basis of the existing investigation problems, particularly, the various factors influencing the bond-slip performance, including strength, shrinkage and creep of concrete, temperature, mechanics behaviors of members, are analyzed. The investigation contents, including the composing of shear bond force, bond-slip performance under complex mechanics behaviors and constitutive relation of bond-slip, are presented.
- 出版日期2007
