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 RM Bridge the standard design processes begin with preparing a structural model, defining the loads, and the construction schedule for the erection stages. Then, two result types of the computer mathematical model analysis are of main interest: …

In RM Bridge the optimization of design parameters is done with the AddCon Method . The Additional Constraint Method is a solution for optimization problems in general within structural engineering. It is known as an extension of the Unit Load Method…

The Demo Example number 9. Flexibility & Stiffness Matrix has an example of how to group elements to represent their structural behavior. In general, it is very useful for large projects to reduce the size of the model and therefore the computational…

As shown below, in RM Bridge the Analyzer Model View in Modeler is usually shown at the bottom left corner as an indicative of the structure the user is working on. It can be a useful reference when the user is working on the dataset, adding or modifying…

Assemblies in both Modeler and Analyzer are a n ew way of grouping elements, automatically or manually, in the database of objects. It allows for collecting elements, nodes, and further entities. These objects may be addressed throughout the program for…

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…

In the Modal Analysis user has the objective of obtaining the frequencies and shapes of each mode. As the number of eigenvalues to be calculated has to be given it is the Cumulative Effective Mass Participation Factor (CEMPF) in each direction that is…

The calculation of Eigenvalues is the first step in many dynamic calculations. Despite it involves advanced structural engineering concepts not always studied in deep in some civil engineering courses it is quite simple to do frequencies analysis in RM…

RM Bridge Enterprise > Modeler, was used to completely defined the geometry of a skewed Steel Tied Arch Bridge. The structural model is composed by the arches, tie girders, floor beams, diagonals, hangers, braces and the deck cross-section composed by…

A Rail Structure Interaction (RSI) Verification is presented for UIC Code 774-3 Track Bridge Interaction. Test case number one from Appendix D is used as validation for computer programs. The structural system is as in the picture below and the schematic…

Main Girder is the segment type that is the principal for bridges, i.e., the longitudinal segments concomitant to the main Axis or Alignment and subdivided by a specified segmentation that will create a series of points or nodes. It usually has a cross…

In OBD CE 2021 Release 2 and RM Bridge v11.13, was implemented the Ultimate Check Capacity using different types of force component selections namely: Total: Normal, Total: Split and, Total: Join . The non-composite cross-section defaults to the Total…

RM Bridge can create curved circular cross-section elements with the use of additional definitions for the Rounding of elements' edges. As shown below, this will apply one constant radius value to one of the sides of the element. For accuracy or when…

RM Bridge users are able to assign different Parts Types to create specific elements or references in the cross-sections. In the same cross-section, multiple and different definitions can be assigned. As users can assign any other Cross section to a Node…

The Demo Example number 6. Moving Load - Two-span Bridge has a THA - Time History Analysis of a Moving Load for a very simplified structure including damping. The structural system simulates a steel composite two spans bridge and Rayleigh-Damping coefficients…

In OBD CE 2021 Release 2 and RM Bridge v11.13, was implemented transfer tendon points to all beams in one unique deck cross-section. When transferring OBM model to RM, for analysis, the User can choose the option "Transfer all beams inside one deck…

Question How are elastic compression losses in tendons due to initial pre-stressing and subsequent loads handled in RM Bridge? Where can I see the results, in particular due to stressing of other tendons and due to time-dependent effects of creep, shrinkage…

STG-SUM , or Stage Summation Load Case is a very useful tool in RM Bridge for the analysis of construction stages. It is usually created in the Load Management; while other summation load cases are also possible, like SW-SUM, PT-SUM, CS-SUM, SDL-SUM;…

In RM Bridge the stage action Fatigue Check will perform verification for fatigue within the stress range provided at the provided superposition file, also called an envelope. This reference envelope must contain the maximum and minimum internal forces…

RM Bridge has the following check actions, available to the users, in the stage definitions, according to the chosen standards: FibSup and FibLc: Fiber stress check for an envelope and/or load case. FibRpt TndFibSup and TndFibLc : Creates an output…

RM CE V11 Update 13

TDF Reports can be modified to create user-defined reports, they are a powerful tool for the generation of layout reports that may be converted to common file formats for later use with standard Microsoft Office software. The available TDF Examples…

Within the RM Bridge Demo and FAQ, there is a quite versatile one: TCL Examples has multiple files with the objective to demonstrate the potential of the programmable script languages for RM Bridge . The .tcl format creates backup files, in the ASCII…

RM CE V11 Update 12