Open AccessResearch on Force Design of Concrete Filled Steel Tube Structure with Open Hole and Stiffener
Author(s) -
Ping Tang,
Cheng Gao
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/330/2/022063
Subject(s) - materials science , structural engineering , stiffness , tube (container) , shear (geology) , bearing capacity , composite material , engineering
The built-in open-hole type stiffened rectangular steel tube concrete refers to a new combined structure formed by forming an open-hole steel plate in the longitudinal direction of the inner wall of the steel pipe and then filling the concrete. In order to study the function of the built-in open-hole stiffened joints, the design of the stiffened rectangular steel tube concrete was designed to analyze the influence of the mechanical properties of the steel-mixed interface. The results show that the vertical rib opening is formed, and the bearing capacity of the rectangular steel tube concrete interface is increased by 2.06 times under the limit state. The shear stiffness and shear capacity of the interface are improved by more than 4 times under normal use.