Step 2: Assign Structural Groups to Elementsġ. Element Activation/Deactivation Elements 17 and 25 have to be activated in CS3 Drag and Drop Element Activation/Deactivation Activate those elements which will become structural components in a Construction Stage The elements which still have scaffolding or wet concrete should be included as weight as they would not contribute in the stiffness of the structure.ġ. Temporary Supports will be removed Post – Tensioning will be doneġ. Scaffolding weight and wet concrete weight will be removed. Stage 3 Stage 3: Deck will be activated by activating part 2 of the composite section.
Stage 2 Stage 2: Construction of Prestressed Beams Prestressed Girders will be simply supported via temporary supports Beam End release will be used to simulate the simply supported nature Activation of end supports Self weight and prestressing will be considered Deck will be casted on day 10, so the weight of scaffolding and wet concrete will be activated on day 10
Stage 1 Stage 1: Construction of Concrete Box Girder Temporary supports are provided as shown Concrete Box Girder will be modeled as a grillage model Self Weight of the Girder and Piers will be activated Tendon group is not used to activate or deactivate a tendon, it is just used to see the results of a certain number of tendons together. Groups are important because: Only the structure groups, load groups or boundary groups can be activated or deactivated in the construction stages, element number or load case name cannot be used to deactivate. Introduction – Construction Stage DefinitionĬonstruction Stage Analysis – Modeling Features Introduction Flow Chart of Construction Stage Analysis: Modeling of Structure Defining Structure Groups Defining Loads under Load Group Defining Boundary under Boundary Groups Generation of Construction Stages Defining Construction Stage Data Construction Stage Analysis Controlġ. Construction Sequence may lead to critical force effects which may lead to shear or flexural failure Long Unsupported cantilever sections may induce forces which may be substantially different from those in completed structure: Time Dependent material properties also play a major role in segmental bridge construction Negative Momentsįinal Bridge Profile – Continuous Structure – Lesser Negative Moments at Mid Supportsġ. Introduction Need of Construction Stage Analysis: Midas Civil Advanced Webinar Date: February 23rd, 2012 Topic: Construction Stage AnalysisĬonstruction Stage Analysis Control Resultsġ.
0 kommentar(er)
