Research On Mechanical Behavior Of Reduced Beam Section Of Bone Shape Moment Connections To Deep Columns Under Cyclic Loads

In high-rise buildings, the horizontal displacement is a control factor of the structure, the beam sizes in Steel bending frame structures depends on lateral stiffness in construction specifications, engineers often use deep column to reduce structural seismic lateral displacement, taking into account the economy of the structure. When reduced beam in moment connections with deep columns occurred lateral buckling, eccentric force caused in flange of the reduced beam lead to torque of the column section,it is bad for the column section that the deep column section produce high warping stress.First.According to Brandon Chi's three groups test about reduced beam section of bone shape moment connections to deep columns under cyclic loads, the establishment of finite element model were calculated and compared with the experimental results to verify the correctness of the finite element model, then transform each column section height, column flange thickness, and whether the weakened zone set lateral support, designing CH, CT, ZC series of specimens to study the column section warping stress. then transform parameters.including the panel zone strength, the beam height, the column flange thickness, column flange width, column section height, and lateral support, the establishment of 20 three-dimensional finite element model study the hysteretic behavior of reduced beam section of bone shape moment connections to deep columns. Finally, propose design recommendations for engineering applications.