Defining the changes to the structural scheme

Before construction stages may be input, it is necessary to define all load-bearing elements, tendons, boundary conditions and load cases that are relevant for the structure. Following the real progress of construction, all elements, tendons, supports etc. are then gradually included into the structure. If any element is removed or if any boundary condition is changed, internal forces and corresponding reactions are automatically added to the load that the structure is subject to.

In each construction stage you may:

add a new member to the structural scheme,
remove the existing member from the structural scheme,
add a new support into the structural scheme,
remove the existing support from the structural scheme.

All these actions can be done in service Construction stages.

Procedure to add member

Open service Construction stages.
Select (or define) the required construction stage (at the bottom of the service tree dialogue.
Call function Members > Add member. It means it is possible to select any 1D/ 2D member.
Select the defined members that should be added to the structural scheme in the current stage.
End the function and if required, close the service.

Procedure to remove member

Open service Construction stages.
Select (or define) the required construction stage (at the bottom of the service tree dialogue.
Call function Members > Remove member. It means it is possible to select any 1D/ 2D member
Select the defined members that should be removed from the structural scheme in the current stage.
End the function and if required, close the service.

Procedure to add support

Open service Construction stages.
Select (or define) the required construction stage (at the bottom of the service tree dialogue.
Call function Supports > Add support. It means it is possible to select any support related to 1D/ 2D members except of Surface support = Soil-in.
Select the defined supports that should be added to the structural scheme in the current stage.
End the function and if required, close the service.

Procedure to remove support

Open service Construction stages.
Select (or define) the required construction stage (at the bottom of the service tree dialogue.
Call function Supports > Remove support.It means it is possible to select any support related to 1D/ 2D members except of Surface support = Soil-in.
Select the defined supports that should be removed from the structural scheme in the current stage.
End the function and if required, close the service.

Procedure to add hinge

Open service Construction stages.
Select (or define) the required construction stage (at the bottom of the service tree dialogue.
Call function Hinge > Add hinge .It means it is possible to select any hinge of 1D member or Line hinge on 2D member.
Select the defined hinge that should be added to the structural scheme in the current stage.
End the function and if required, close the service.

Procedure to remove hinge

Open service Construction stages.
Select (or define) the required construction stage (at the bottom of the service tree dialogue.
Call function Hinge > Remove hinge.It means it is possible to select any hinge of 1D member or Line hinge on 2D member.
Select the defined hinge that should be removed from the structural scheme in the current stage.
End the function and if required, close the service.

It was not possible to add/ remove hinge independently on beam in 32 bit branch.

There is a comparison of basic entities between 32 bit and 64 bit branch in the following table.

Item	32 bit branch		64bit branch
Item	Add	Remove	Add	Remove
1D member	YES	YES	YES	YES
Nodal support on beam	YES	YES	YES	YES
Line support on beam	YES	YES	YES	YES
Hinge on 1D	NO	NO	YES	YES
2D member	YES	NO	YES	YES
Nodal support on 2D member	YES	YES	YES	YES
Line support on 2D member edge	YES	NO	YES	YES
Surface support on 2D member	NO	NO	YES	YES
Line hinge on 2D member edge	NO	NO	YES	YES

Subregions for 2D members are automatically considered together with its master entity of 2D member. Subregion has not any possibility of change existence of the entity.