Open AccessCalculation of Deformation and Ductility of Steel Fiber Reinforced High-Strength Concrete Columns
Author(s) -
Hui Liu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/719/2/022040
Subject(s) - materials science , ductility (earth science) , deformation (meteorology) , composite material , structural engineering , fiber reinforced concrete , fiber , engineering , creep
Based on the simple stress-strain relationship of steel fiber concrete, the influence of strain coordination factor on the cross section is analyzed, and the calculation equation of curvature ductility coefficient is deduced. According to the law of curvature distribution of flexural members, the curvature distribution is simplified into two-segment and three-segment linear distribution, and the corresponding calculation equations of length, load and deflection of different sections are deduced, and the calculation method based on the theoretical curve of load-deflection is proposed. Compared with the test results, the ductility coefficient, the theoretical curve of load-deflection and the test results all show a high degree of coincidence.