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Cyclic loading tests and shear strength of steel reinforced recycled concrete beam–column inner joints
Author(s) -
Xue Jianyang,
Zhai Lei,
Bao Yuze,
Ren Rui,
Zhang Xicheng
Publication year - 2017
Publication title -
the structural design of tall and special buildings
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 43
eISSN - 1541-7808
pISSN - 1541-7794
DOI - 10.1002/tal.1454
Subject(s) - materials science , dissipation , shearing (physics) , composite material , joint (building) , structural engineering , beam (structure) , stiffness , bearing capacity , ductility (earth science) , shear (geology) , shear strength (soil) , creep , physics , environmental science , soil water , soil science , engineering , thermodynamics
Summary To study the seismic behavior and shear strength of steel reinforced recycled concrete (SRRC) beam–column inner joints, four 1:2.5 scaled specimens with different replacement percentage of recycled coarse aggregates were fabricated and tested under cyclic lateral loadings. The failure modes of SRRC joints were observed, and the various mechanical indexes of SRRC joints, including hysteresis loops, envelope curves, load carrying capacity, ductility, energy dissipation capacity, and stiffness degradation, were analyzed. The results indicate that the main failure mode of the SRRC joints is the shearing diagonal compression in the core zone of joint. The seismic behavior of the SRRC inner joints degrade only slightly compared with the ordinary steel reinforced concrete inner joints. Based on the test and analysis results, a modified design method is proposed to calculate the nominal shear strength of SRRC inner joints.