‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘
KAWASAKI STEEL TECHNICAL REPORT
No.5 ( May 1982 )

‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘

Introducing Composite Structures Using Newly Developed Checkered Steel Pipe and Deformed Flange H-shapes

Masakatsu Sato, Michihiko Hara, Masao Ishiwata, Eisuke Yamanaka
Synopsis :
For a steel-concrete composite structure, a fail-safe mechanism of stress transmission in the steel-concrete interface is of primary importance. The authors have developed H-shapes with deformed flange surfaces and steel pipes with checkered projections on their surfaces as a means of increasing bond resistance with concrete. The composite new steel pipes and the encased new H composite beams have been subjected to several kinds of tests including pull-out, push-out and bending, and the following points are confirmed: (1) Checkered projection is found to be significantly effective in resisting push-out and bending loads. (2) The mechanical properties of the encased deformed flange H composite gbeams are found to be at most equivalent to that of reinforced concrete beams using large-diameter deformed bars.
TextiPDF: 11p./386kbj



(c)JFE Steel Corporation, 2003