Internal force analysis of precast frame structure under the influence of ductile connections

Through using finite element method,the effect of ductile connections on internal force of frame structure is discussed.The results show that: under vertical loads,compared to the rigid connection,the girder end bending moment and column base moment will decrease,while the mid-span bending moment increases,under horizontal loads,compared to the rigid connection,the girder end bending moment decreases and column base moment increase significantly,while the mid-span bending moment does not change,under vertical loads and under horizontal loads at the same time,the internal difference between rigid and ductile connection is also obvious.