Hello
why the connection of the embedded beam is in the top or bottom
if i put the connection at the bottom what will be the connection of the top or if i put the connection on the top what will be the connection of the bottom?
Dear Lojain,
By implementation, the connection point of an embedded beam element can only be at the top or bottom (first or second). Depending on the behaviour of the embedded beam for Pile and Rock bolts the connection point can be specified, which covers the behaviour of the element with the surrounding soil and structures.
For example, for a modelling a pile, the connection point is typically at the top of the embedded beam. This makes it clear that the top of the pile can have a free/hinged/rigid connection (some options are applicable only when connected to structures), the main body of the pile will interact with the soil via the special interface elements and the bottom can have an extra Foot force (defined in material data set).
You can refer to our Reference Manual for more details about the available options. The Scientific Manual covers extra details regarding the implementation.
As explained above, if the connection point is specified to be the top, there is no connection for the bottom point apart from the interaction with the surrounding soil via the value specified as Base resistance (Fmax).
what is this extra Foot fotce and how to apply it?
And I am working with piled raft model where I have implemented raft as a plate element and piles as embedded pile element, but the problem is with changing the pile head connection( the top point which is in direct contact with the plate) my results are coming same.
Please can you kindly explain the reason?