Static loading test on RC beam-column sub-assemblages with walls

Seitaro Tajiri; Akira Moriya

doi:10.5459/bnzsee.50.4.555-564

Seitaro Tajiri University of Tokyo, Tokyo, Japan
Akira Moriya University of Tokyo, Tokyo, Japan

DOI: https://doi.org/10.5459/bnzsee.50.4.555-564

Abstract

It is needed to establish a design capacity curve of beams/columns with RC standing, hanging and wing walls for utilizing such walls as structural members in RC buildings in Japan. This paper presents the results of static loading tests on RC beam-column sub-assemblages with such walls, which were conducted to evaluate their strength, ductility, stiffness and damage. The flexural yield strength of beams with the walls can be well estimated by a flexural analysis assuming the plane section remain plane. The flexural ultimate strength can be accurately estimated at the full plastic moment. The proposed method, which is a modification of a practical design method in a distance from the centre of tensile reinforcements to the extreme compression fibre, can evaluate the secant stiffness at the yield point more precisely than the practical design method.

References

Information Center for Building Administration and Japan Building Disaster Prevention Association (2015). "Guideline for Structural Standard of Buildings”. Official Gazette Co-operation of Japan, Tokyo, 785pp (in Japanese).

Sugano S (1973). “Research on Load Deformation Relationship of RC members: Experimental Study for Strength and Stiffness of Flexural Beam, Column and Shear Wall without Opening”. Concrete Journal, 11(2): 1-9 (in Japanese).