Seismic behavior experiment on steel column joint with outer-sleeve
Su Hexian;Tao Zhong;Bai Yu;Pan Wen;Yang Xiaodong;Yang Jianrong;School of Civil Engineering,Kunming University of Science and Technology;
The pseudo-static tests were carried out on column joint with outer-sleeve and bolt connection to study seismic behavior of the joint. The full-scale joint specimens of square tubular steel column and H-shaped steel beam were produced in the test. The working behavior and failure condition of the joint under cyclic loading were studied. The coordinated working behavior and shear transfer mechanism of the outer-sleeve and square tubular steel column were analyzed combined the test data. The test results show that the shear transfer way and mechanism of the joint are clear. The outer-sleeve can improve the flexural bearing capacity of the joint and works with the square tubular steel column cooperatively in force and deformation coordination. The joint has well seismic behavior. The main factors influencing the seismic behavior of column joint with outer-sleeve and problems that should pay attention to in the construction were summarized,providing guidance for the engineering applications.