Greetings of the day sir, I am facing problem in the output results of the cyclic loading. I am designing an embankment in which i have applied cyclic load for the vehicle movement. I have applied line load for the cyclic loading along with the static loading in the downward direction at the top of beam. The value of line load is 175kN/m at the frequency of 4 hz with dynamic time interval of 314 sec. But when I calculate the output results the line load is showing on the entire of the bottom of the embankment in the upward direction. i don't know how to interpret this results.
Dear Shailja,
You are confusing the external water loads (greenish colour) with the line load (blue colour). Since you are performing a dynamic analysis, the default deformation boundary conditions, i.e., fixities are not applied as the dynamic boundary conditions are used.
This causes Output to understand that there is no fixity thus displaying an external water load applied for the whole model. You can ignore this as the dynamic boundary conditions will be considered instead.
thank you sir. but still I am confused that there is no water present in the embankment model so why water load is showing at the bottom? I have attached the screenshot of the boundary condition. apart from this i want to know that can I use point load instead of line loading to show cyclic loading?
Hello again,
This can be because of a borehole water level or any user-defined water level. Can you check if you have defined either of them?
Both can be seen in the Flow conditions tab, so please check over there. In the Model explorer you can see if a water level is present by expanding the Water option as seen below.
A borehole water level is defined in Soil tab when creating the borehole itself as shown below. Note that by default the value is set at Head: 0.000m (or your chosen project unit of length)
Any user water level can be created in Flow conditions tab.
thank you.