GENERAL MOMENT-ROTATION CHARACTERISTICS OF BEAM-TO-RHS-COLUMN CONNECTIONS WITHOUT DIAPHRAMS

Abstract

A key oarameter to measure the seismic resistance of steel frames is the ability to absorb energy by undergoing elastic-plastic deformations. In the rigid moment frames, the energy is absorbed by columns, beams and joint panels of beam-to-column connections. 0n the other hand, in the case of semi-rigid moment frame, beam-to-column connections can absorb energy in addition to these members. In this paper, the results of experiments of non-diaphram connection with use of RHS column and H-setional beam is reported, and emprical formulas to estimate yield moment and stiffness are proposed.