Study on Shear Performance of Bolts Near Concrete Beam Ends of I-Beams
Cantilever scaffold is widely used in major construction sites for its excellent performance(non-pene-trating structure,easy disassembly,recyclable,etc.).Based on this,the anchorage performance of reinforced con-crete beams near the end is studied in this paper,and the ultimate bearing capacity of I-steel beams near the end of reinforced concrete beams is analyzed by finite element method considering the influence of different em-bedment positions,embedment depths and concrete strength on the density of stirrup.The results show that con-crete failure is the failure mode of each specimen.In order to investigate the shear behavior of bolts near the con-crete end of I-steel beams,81 finite element models were established and the ultimate bearing capacity of I-steel beams near the concrete end was parameterized by ridge regression linear regression method.Finally,it is con-cluded that the influence of concrete strength and anchorage position on ultimate bearing capacity is greater,and the influence of anchorage depth and stirrup density on ultimate bearing capacity is relatively small,and a linear fitting bearing capacity prediction formula considering the above parameters is proposed to facilitate the calcula-tion of related projects.
anchoring performancefinite element analysisultimate bearing capacity
NETL
NSTL
万方数据
