DYNAMIC RESPONSE ANALYSIS OF BEVELED STEEL FRAMES WITH SEMI-RIGID CONNECTIONS EXPOSED TO WIND LOADS

Abstract

The purpose of this article is to demonstrate how to use the finite element
method to analyze the dynamics of chamfer frames with semi-rigid connections that
are exposed to wind loads. The energy approach is used to generate the steel frame's
stiffness matrix. The mass matrix is generated using the chamfer element's form
functions and semi-rigid connections. The semi-rigid connection at the rod element's
ends is represented by an elastic spring with bending stiffness. An exponential
function with base "e" is used to illustrate the geometrical properties of the I cross
section. Two locations in Lang Cang and Dien Bien were used to calibrate the wind
load model. Calculate the dynamic responses of the chamfer frame using the
Newmark direct integral. The method's accuracy is validated using accurate
numerical comparisons. From then, the effect of the semi-rigid connection and wind
load model on the chamfer frame's dynamic response is discussed.