Civil Engineering Reference
In-Depth Information
Chapter 6
WIND INDUCED STATIC AND DYNAMIC
RESPONSE CALCULATIONS
6.1 Introduction
The wind induced dynamic response calculations dealt with in this chapter focus on
structural displacements for a line-like type of bridge structure. The calculations of
corresponding cross sectional forces are shown in chapter 7. The problem at hand is
illustrated in Fig. 6.1.
Fig. 6.1
Simple bridge structural system subject to fluctuating wind field
As shown, the velocity components in a wind field vary in time and space. When a
structure is subject to such a fluctuating wind field, the passing of the flow will generate
fluctuating drag, lift and moment loads on the structure, which in turn will cause the
