Influence of replacement ratio and recycled concrete strength on bending capacity of combination beam
XU Wei
WANG Ji-zhong
CHANG Xiao-bo
BAI Yang
Abstract：In order to study the effet of the replacement ratio of recycled aggregates and the strength of recycled concrete on the bending capacity of combination beam, the simulation study on the steel-recycled concrete bending capacity of combination beam was carried out with the finite element simulation software ABAQUS.The results show that with increasing the strength grade of recycled concrete, the bearing capacity of combination beam increases, and the interface slip reduces.With increasing the replacement ratio of recycled aggregates, the ultimate load of combination beam exhibits a downtrend.When the replacement ratio is below 50%, the interface slip decreases with increasing the replacement ratio.When the replacement ratio increases to 70%, the interface slip exhibits an upward trend.The steel-recycled concrete combination beam has good mechanical performance.
Keywords：recycled concretecombination beamreplacement ratiointerface slipmonotonic loaddeflectionbending capacityfinite element simulation
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 198-204 )