Shear Performance of Frame Beam and Shear Wall Connected by Concrete Filled Steel Tubular Keys
This paper was proposed to study the shear performance of frame beam and shear wall connected by concrete filled steel tubular keys(CFSTK)and provide design basis for engineering applications.ABAQUS was applied to compare the shear performance of the beam-wall structure connected by CFSTK and cast-in-site(CS).Former's shear mechanism and performance influencing factors were analyzed.The results show that:the bearing capacity and ductility factor of the beam-wall structure connected by CFSTK increased by about 10％and 34％respectively compared with CS.The initial stiffness is increased by 8.44％from Q235 to Q390.The ductility factor is increased by 17.73％from 100mm to 120mm in section height.The bearing capacity is increased by about 15％for every 2mm increased in section thickness.The influence of section length and concrete strength grade on load capacity,initial stiffness and ductility factor are all less than 15％.The longitudinal distance has almost no effect on its shear performance.It can be concluded:the shear performance of the beam-wall structure connected by CFSTK is better than CS.The steel strength and section thickness are the main factors affecting the initial stiffness and bearing capacity,respectively.
NETL
NSTL
万方数据
