RM Product UpdateOctober 2009

Alexander Mabrich, PE, Msc

Senior Engineering Consultant

RM Bridge V8i

• RM Wizards– Steel (concrete deck)– Steel (orthotropic deck)– Precast Girder Bridges– Reinforced slab– Land XML

• RM Draw– Automated Plans Production

RM Wizards

RM Wizards

• RM Wizards are regular data objects in the RM data file.

• One RM Wizard item is stored as one “parent” object: a whole bridge structure.

• RM Wizards will open the connection to other products (LEAP, BridgeKey) or interfaces (ISM)

RM Wizards

• For non-experienced RM user, Wizards should be understood as a “Press button” solution.

• For experienced RM user the situation is different: experienced user will be able to understand and manipulate generated data for his special purposes.

RM Wizards

• Wizard will automatic generate data:• Structural model,• Loading definition,• Construction sequence• Calculation of all loadings and load combination• Data for design code checks• Results in form of sheets, diagrams, plots and drawings.

• This automatic generation is following predefined rules, so user can understand his outputs.

RM Wizards: Configuration

• RM Wizards are designed as following:

• User can always go back to dialogs and change data again

• User should normally not change or manipulate wizard generated data (structure, loading etc)

• Instead of changing generated data, user should go to original wizard input.

RM Wizards: Design Codes

• RM Wizards are designed as following:

• Separate dialogs for separate design codes

• Currently implemented AASHTO and EUROCODE.

• Other design codes will follow.

RM Wizards: Superstructure

• Each superstructure has its own (specific) definition: Prestressed Girder, Reinforced Slab, Steel Girder Concrete Slab, Steel Girder Steel Deck.

• Although input for superstructure is specific for different bridge decks the whole input sequence is driven in similar way

Precast Girder

Reinforced Slab

Steel (with Concrete Slab)

Steel (with Orthotropic Plate)

RM Wizards: Substructure• The sub-structure

definition is common for all wizards.

• Drop Cap Pier, Hammerhead Pier and Wall Pier are available.

• Fixity of support is controlled within the wizard.

• Complex logic of connecting separate structural part is implemented within RM.

RM Wizards: Loads• Self-weight, Live, Traffic,

Braking and Temperature load are defined in the Wizard.

• Seismic loads are defined with the Response Spectrum Method.

• Pier settlement and bearing replacement are also considered.

• Creep and shrinkage effects during construction and final can be defined.

RM Wizards: Analysis

• Three different level of modeling and analysis are predicted:• Beam• Grillage• Detailed FEM

• Current implementation is beam and grillage model. FEM will follow in next release.

RM Wizards : Future Development

• FEM model in Wizard

• Wizard Hollow box (60% finished)

• Piers and foundation

• Wizard – pre/post-tensioning

• Wizard for Chinese market

• Schedule – new GUI - Results

• Loading – using groups - Results

RM Wizards: : Future Development Special Loads

1. Allowing the user to consider other loads than standard loads of design codes.1. Abnormal convoy2. Accident action3. Earth pressure4. Ice pressure5. Vessel collision6. Dynamic wind action

2. Allowing defining special design combinations1. Distinguish ordinary actions and2. Extraordinary actions (different safety requirements)3. Combinations for bearing design only4. Design forces for local proof checks (e.g. lateral bending of slab)

RM Wizards: Future Development Construction Sequences

• Span by span

• Cantilevering techniques

• Precast Segmental

RM Wizards

• Demonstration

RM Draw Manager

RM Draw Manager

• RM Draw Manager is an automated plans generation tool inside RM Bridge.

• Extracts information and results from the RM Bridge Model and assembles that into user defined plan sheets.

• Plan sheets are CADD files in Microstation or AutoCad format (dgn, dwg).

• CADD 3D Models are also generated

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RM Draw Manager: What It is Generated… • General Layout

– 3D Model– 3D Tendon– Alignment

• Axes– Horizontal Alignment– Vertical Alignment– Elevation view

• Deck– Typical Sections– Tendon Groups – Segment Sections

• Construction– Simulation– Camber Lines

• Shop Drawings– Individual Segment Sections– Segments with Rebar quantities and location

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RM Draw Manager: Drawing Composition• Production drawings will be generated based on Template

Drawings.

• These templates indicate what and where the RM Bridge drawings will be placed into the sheets.

Thank you!