Research on Aseismic Capabilities of Axis Deformative Column Joints

Traditional cast-in-place overall frame column through the upper and lower column axis node has a good force transmission performance , the results of their research is more perfect . For the main project of the Civic Center of Hangzhou , in order to hold a layer in the upper side of the column capitals bearing, and the layer above layer ( the layer) side column do not include the displacement of processing , so the formation of the upper and lower new column axis offset in the same vertical section structure - axis displacement column , between the axis of the upper and lower displacement column and beam to form a new node - axis displacement column node . ETABS finite element software to establish the overall framework of the cylinder with the axis of displacement column node structure , power transmission node through changing parameters of the the axis variable bit column seismic performance of preliminary exploration and research , and placement , overall seismic performance conducted a preliminary analysis and discussion , the finite element software while taking advantage of SATWE conclusions comparison and verification . On this basis , the trial by the scale of the axis variable bit column node model low cycle force transmission mode , the seismic performance of further in-depth analysis and research . Reference the abnormal joint experimental and theoretical analysis of the outcomes , we found that there are also the \At the same time , according to the seismic design of test results combined with the the Chinese specification framework node axis variable -bit column on seismic design formulas . Axis displacement column joint special force transmission mode and seismic performance , we propose to increase the offset on the anchorage length of the column structure approach , and preliminary exploration of its length value applied to actual projects . Finally, a brief discussion on the direction of further work to do .