Abstract

Info

Title:: Stability Analysis of Non-sway Modular Frame with Semi-rigid Connection

Author(s):: CAO Ke; LI Guo-qiang; LU Ye; College of Civil Engineering, Tongji University

Keywords:: effective length factor; stability analysis; semi-rigid connection; nonsway-modular frame

Abstract:: Based on Code for Design of Steel Structures(GB 50017—2003) and using the three column subassemblage model, a governing equation for determining the effective length factor of column for non-sway modular frame with semi-rigid connection was derived. Furthermore, the theoretical solution to evaluate the corresponding column effective length factor was proposed. The effectiveness and accuracy of the simplified calculation formulas were illustrated through comparing the theoretical calculation results and finite element analysis results. At last, influencing factors of effective length factor of column for non-sway modular frame with semi-rigid connection were investigated. The results show that the effective length factor is affected not only by the connection stiffness but also by the ratio of modified relative stiffness factor. When the ratio of modified relative stiffness factor is 1, the effective length factor doesn’t change with connection stiffness.