Flutter aerodynamic instability is nowadays a well-known phenomenon; although, it still requires quite complex wind engineering knowledge and techniques to be analyzed. For Torsional Flutter the Critical velocity derivates from a Single degree of…

This is the Main Page of a series of Wiki articles on the Be Communities page for OpenBridge and OpenTunnel engineering software solutions from Bentley Systems Inc . OBD - OpenBridge Designer OTD - OpenTunnel Designer OpenBridge Designer includes…

RM > Analyzer > RateF schedule action evaluates the load rating factor for the bridge structure according to AASHTO code. Parameters necessary to be introduced are: Dead load: FactSWSUM.sup Live Load Sup: FactTraffic.sup Capacity: Steel PrimLC…

1. OBM > Utilities > Send to RM Bridge 2. Select Standard Code and Material List 3. General Settings 4. Superstructure – Deck 5. Substructure – Cap , Piers and Piles 6. Substructure - Restraint Conditions 7. Assign RM Materials …

Is presented below the Rating Factor calculation done in OBD / RM Bridge for a two spans composite steel bridge with a central pier. Bridge Modelling done in OBM and calculation performed in RM on a complete model in OBD. Table of Contents: A…

RM > Modeler definition of slender parts in cross-section. Cross-Sections – Slender Parts: Required for the local buckling. Reference Set – Steel Slender part type Start point = free point Line point = restraint point Subtype of slender…

RM > Analyzer > UltRes schedule action for capacity design of composite steel bridges. Steel Design checks performed with: UltRes – design resistance ResChk – proof check (interaction formulas) Design of Composite Steel Bridge - Video

OBD CE 2022 Release 1 and RM Bridge v11.14, the User can import OBM Deck Templates into RM Bridge for structural analysis, following the below steps: 1.OBM Create Deck Template In OBM > Utilities > Libraries > Decks, create a new deck cross-section…

Currently, there is only one link between OpenBridge Modeler and the Standalone applications, with a single .DGN file for OBM and one directory for the apps. It allows any modification to be synchronized between them with a single source of information…

In OpenBridge Designer Connect Edition, it’s possible to run RM Bridge in a completely standalone version. In this way, during the analysis, the User is now able to run several different inputs *.tcl files and/or use the batch mode run. The project…

OBD CE 2022 Release 1 and RM Bridge v11.14 is now able to compute and allow access to shell forces, stresses, and displacement results corresponding to integrals of lead components in a finite element model, after a live load analysis is performed. …

OBD CE 2022 Release 1 and RM Bridge v11.14 is now able to compute and allow access to shell forces, stresses, and displacement results, for Live Loads analysis. After running a FEM Live Loads analysis, the User can obtain: 1. Curve Diagrams Live…

In OpenBridge Designer and RM Bridge is presented one local finite element model for a Steel Voided Diaphragm analysis. The parametrized model uses variables definition in RM > Modeler. Vertical loading, the stress state analysis obtained is presented…

Composite bridges with continuous steel girders and concrete reinforced slabs are commonly designed. Because there is a massive difference in the material's stress capacity in tension, considering tensile zones in the reinforced concrete components is…

With OBD CE 2021 Release 2 and RM Bridge v11.13, the User can design one PS slab with circular holes. In OBM, the User should choose a CIP bridge type and work with Place Advanced Deck. For the structural analysis and design, the User can send the…

RM Bridge Errors and Warnings create a list from the calculation processing to allow users to search for possible faults or misses, and notices of alarms for materials limits. More information can be found in the Recalc log that creates a .txt fi…

This RM Bridge FAQ: Influence surfaces example has a .pdf document and .tcl files to show how users can: use the i nfluence surfaces for transversal analysis; use influence surfaces for the traffic load evaluation of wheel loads on grillages; …

Influence surfaces for consideration of laterally distributed loads, or two-dimensional load trains, can be defined in RM Bridge by defining and assembling a set of parallel influence lines. The Default is to have the input Surface as an empty variable…

Due to the consideration of time effects and the respective active loads and elements in the construction simulation of bridges with concrete elements structural engineers, in general, understand that the final stage design of a bridge might be quite…

A detailed camber analysis within the construction schedule is also possible, with the action DoCamber for each label or type of load. This is very useful for construction control where the contractor will check the design pre-camber curve against each…

For the Result Options Diagrams, when using the FEM results, due to too much superposition of lines and shapes, it could be interesting to turn off some directions, faces, or elements in the Diagrams Options . It is important also to consider the…

The RM Bridge Main Screen has all the necessary functions for the graphic presentation of the model on the back of the main graphic screens of the GUI. When no other input/output window is open, this is the Model View. As shown in the images below, there…

To ge t RM Bridge Technical Support just go to the Top Ribbon Menu at Help? and choose one of the options: News / Release info : Requirements, Release Notes, and Product News; Application Help : F1, App Help with initial onscreen program information;…

In OBD CE 2021 Release 2 and RM Bridge v11.13 was improved “ RateF” schedule action for Imperial Units. “RateF”, evaluates the load rating factor for the bridge structure according to AASHTO code. This action is currently only applicable for steel and…

In OBD CE 2021 Release 2 and RM Bridge v11.13, was implemented the Plot element cross-sections for ultimate capacities using different types of force component selections namely: Total: Normal, Total: Split and, Total: Join . Join results Split…