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~CPSTDEF

 

~CPSTDEF, STEP, Lab, VAL1, VAL2, VALINC, KEYON

Defines the properties of a construction step

PREP7: BRIDGES MODULE: Construction process

STEP

Step number.

Lab

Label identifying the property to define:

Time	Step activation time
SS	Elements between solid sections
Node	Beam elements between nodes
Element	Selected elements
Tendon	Tendons

VAL1, VAL2, VALINC

Values that depend on Lab.

Lab=Time	VAL1 = activation time
Lab=SS	VAL1, VAL2 = solid sections between which the elements will be selected
Lab=Node	VAL1, VAL2 = nodes between which the beam elements will be selected
Lab=Element
Lab=Tendon	VAL1, VAL2, VALINC = Tendons to be activated or deactivated

KEYON

Activation or deactivation of the corresponding item:

 0	Deactivate
 1	Activate (by default)
-1	 Deletes from the activation or deactivation list (tendons only).

Notes

- The activation time assigned to a specific step should be higher than the activation time defined to the previous step and it should be lower than for the subsequent steps. If a time is assigned to an intermediate time, this time is assigned to all the subsequent steps with a lower number of activation time.

- The ~CFLSSLV command should be used if the construction process is activated (see ~CPDEF command).

- The elements and tendons indicated in each step are activated and deactivated in each solution step.

- The activation is carried out first and later the deactivation. The user should indicate the load steps with the rest of the model actions associated to each construction step. The prestress actions will be added during solution.

- It is the user responsibility to make sure that the material activation time, corresponding to the elements and tendons, is coherent with the activation time of each construction step.

- Deactivate a tendon implies not to consider the corresponding prestressed force, that is, the placed casing is considered but the tendon has not been prestressed yet.

- The activation and deactivation of elements imply the birth and death of these.

Menu Paths

Main Menu > Civil Preprocessor > Bridges Prep > Construction Process > Activation time

Main Menu > Civil Preprocessor > Bridges Prep > Construction Process > Elements

Main Menu > Civil Preprocessor > Bridges Prep > Construction Process > Elem through SS

Main Menu > Civil Preprocessor > Bridges Prep > Construction Process > Elem through nodes

Main Menu > Civil Preprocessor > Bridges Prep > Construction Process > Tendons

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