The stage tree provides a systematic outline of the entire construction sequence defined for a model. Data defined for a specific construction stage can be readily modified. 

Any construction stage can be easily deleted, or new stages can be inserted. The order of construction stages can also be revised. 

The works tree menu allows you to systematically check and revise the structure and loading conditions for each construction stage.

Define each stage based on sequential structural changes reflecting erection and dismantlement of temporary structures, varying boundary conditions, etc.

Define timing steps representing the timing of loading and unloading specific load cases within a given construction stage, without any change in structure.

The construction stage analysis feature allows the user to specify activation and removal of elements with varying maturities, changes with boundary conditions and changes with loadings during the construction sequence. As such, construction stage analysis reflects the erection and dismantlement of temporary structures, complex bridge analysis, construction stage analysis of PSC box bridges reflecting temporary structures, and heat of hydration analysis based on the concrete pour sequence.

The moving load tracer determines the location of a moving load that imposes the maximum member forces. Forces and stresses in beam members resulting from detailed analyses of individual elements can then be verified with beam diagrams. With plate models, the local direction force sum combines the nodal forces of plate or solid elements and calculates the member forces at specified positions.

For moving load analyses, midas Civil provides a database of standard vehicular loads. Users can also define separate vehicular loads. Available moving load database includes:

- AASHTO Standard

- AASHTO LRFD

- PENNDOT

- Canada

- BS

- EUROCODE

- Australia

- Poland

- Russia

- South Africa

- Korea

- KSCE-LSD15

- China

- India

- Taiwan

- Transverse

Composite section can be easily defined with built-in DB or User defined section. The real benefit of composite section is that we don’t have to create two model files to represent two stages before composite and after composite action.

midas Civil provides various features for composite girder bridge design where it is important to check the member forces for both before and after composite actions. This eliminates the need to managing two different analysis models and results.

Tendons can be defined at any location and checked with transverse cross sections.

Short-term prestress losses are considered for the effects of anchor slippage of tendons, friction between tendons and sheaths, and elastic concrete shortening.

Long-term prestress losses are considered for the effects of creep, shrinkage and relaxation of tendons.

Variation of prestresses in tendons are considered for the effects of loading and temperature changes.

Calculation of prestress loss for tendons with 3D profiles or curvatures. 

Prestressing effects considered for pre-/post-tensioning and internal/external placing methods.

Free tendon Placement irrespective of nodes.

midas Civil provides standardized PSC box sections for PSC box girder bridges for easy and practical modeling and analysis.
Where variable sections exist in a member, within a FCM bridge for example, section properties are automatically calculated upon defining the end sections, and the rate of curvature.
Longitudinal & transverse variable sections can be specified.
When automatically generated variable section data are partially modified, the related sections are automatically updated in the model.
Effective widths are automatically calculated as per design codes and subsequently applied to analysis.

Time dependent material properties are defined to reflect the variation of modulus of elasticity relative to concrete maturity and the long-term deflection effects due to creep and shrinkage.

midas Civil supports time dependent material according to following codes:

CEB -FIP (2010)
CEB -FIP (1978)
ACI209 (1982)
PCA (1986)
AASHTO (2006)
INDIA (IRC: 18-2000)
EN1992-2:2004
User Defined

An FCM bridge model with construction stages can be automatically generated after defining only cross sections, tendon placements and bridge configuration data.
Sections and tendon placements are defined within the wizard.
The wizard defines the entire bridge model including piers and key segments.
Capable of real-time display of construction stages automatically generated by the wizard FCM Bridge Wizard.

Using the ILM bridge model wizard, enter the number of segments and the corresponding data to generate the entire bridge configuration. Basic construction stages (activation of segments) can be automatically generated on the basis of the number of segments entered.

Using the bridge data, the number of days for the construction of each segment and each launching length, a detailed construction stage for each launching stage (with activation and deactivation of supports) is automatically generated.

Composed of flexible cables. The suspension bridge wizard in midas Civil automatically calculates the cable coordinates and tensions of the final structure. Also, using 3D elastic suspension line elements and equivalent truss elements, midas Civil can consider nonlinear characteristics of the cables. It supports geometric nonlinear analysis as well as construction stage analysis.

midas Civil provides heat of hydration analysis capabilities considering heat transfer and stresses. The heat of hydration analysis with construction stages reflects the changes of the modulus of elasticity due to maturity, effects of creep and shrinkage, pipe cooling, and concrete pour sequence.