doi:10.16186/j.cnki.1673-9787.2020.4.19

Received:2019/12/16

Revised:2020/02/20

Published:2020/07/15

Analysis of sliding behavior of continuous beam of partially filled steel box-concrete composite

JIANG Yue1, MO Shixu1,2, ZHENG Yan1,2, HAN Tao1

1.College of Civil Engineering and Architecture， Guilin University of Technology， Guilin  541004， Guangxi，China;2.Guangxi Key Laboratory of Rock-Soil Mechanic and Engineering，Guilin  541004，Guangxi，China

Abstract:In order to study the influence of shear connection degree on the relative slip of the partially-filled narrow-width steel box-concrete composite continuous beam， three sets of different shear connector test composite beams were designed for monotonic loading experiments. By using the finite element model，the relative slip of steel box-concrete composite continuous beam with partial filling was analyzed，and the process and distribution characteristics of the interface slip development of steel box-concrete composite continuous beam with partial filling were obtained. The results showed that the relative slip of partially filled steel box-concrete composite continuous beam decreased with the increase of shear joint degree. When the stiffness and bearing capacity of composite beam were guaranteed，the shear connection degree could be appropriately adjusted within the range of 0.4 ~1 to make the best effect of bolt ；The degree of shear connection had certain affect for deformation and bearing capacity of partially filled narrow-width steel box-concrete composite continuous beams，especially the degree of shear connection in the negative moment zone had a greater influence on the relative slip of the composite beam interface.

Key words:steel box-concrete;composite beam;finite element model;slipshear connection degree

部分充填式钢箱_混凝土组合连续梁滑移分析_蒋越.pdf