Study on Seismic Performance of Concrete Beam and Column Connected by High-strength Bolts and I-steel
A joint of connecting concrete beam and column with high-strength bolts and I-steel is proposed,and its seismic performance was investigated to provide a reference for design.The load-bearing processes of it was analyzed by ABAQUS.How the parameters influence its performance was analyzed,such as the post-cast concrete strength,the length of joint area,the thickness of I-steel flange,ect.Compared with the cast-in-place specimen,the specimen connected with the above manner has higher load-bearing capacity,of which the yield load and peak load are increased by 2.08 and 2.64 times,respectively,compared with those of the cast-in-place specimen.Increasing the strength grade of post-cast concrete or the length of the joint area within a certain range has less effect on the load carrying capacity.Increasing the thickness of the I-steel flange,I-steel yield strength have greater impacts on the load capacity of joint area.The results show that the concrete beam and column connected by high-strength bolts and I-steel meets the requirements of load carrying capacity,and the I-steel flange thickness and I-steel yield strength have relatively large influences on the carrying capacity of it.
joint of beam and columnassembly concrete structurefinite element simulationhysteresis curveskeleton curve
NETL
NSTL
万方数据
