Demonstrates the response of water filled elevated tank structure.
Response spectrum analysis is carried out to estimate the maximum response of a
structure for a transient event. On a modal space when a response spectrum is
specified as dynamic loading, estimate the maximum displacement and stresses as a
response of the spectrum.Figure 1. FE Model
Model Files
Before you begin, copy the file(s) used in this example to
your working directory.
The finite element model, as shown in Figure 1 is constrained at the bottom of the
structure with all DOF’s fixed, modal damping with respect to natural frequency and
frequency dependent dynamic loads are applied on the structure.
FE Model
Element Types
CTRIA3
CBEAM
The linear material properties are:
Linear Material 1: STEEL
Young's Modulus (E)
2.1e5 MPa
Damping coefficient
0.02
Density (Rho)
7.9e-9 t/mm3
Linear Material 2: STEEL_SANDWICH
Young's Modulus (E)
3e4 MPa
Damping coefficient
0.02
Density (Rho)
9e-10 t/mm3
Results
The maximum response of the structure is analyzed for the transient loadings.
Figure 2. Maximum Displacement of the Structure Figure 3. Maximum von Mises Stress in the Structure
