LEAP Bridge Concrete Analysis/Design parameter, Cover
How does changing the values in A/D Parameters Cover section affect the analysis? How does this setting/section differ from the Bar distance input when doing a rebar design.
Thank you
Rating uses a different set of Loads and Loads Combinations from the Design Mode
The LBS users can utilize either the Design Mode or the Rating Mode . Therefore, the Rating Combinations are different from the Load Combinations and the Rating Loads can be dissimilar from the Design Loads . The user must initially select the Mode: Rating…
Recalculate Window Basic Settings Non-linear Material
In RM Bridge , inside OpenBridge Designer , the user can select the Non-linear Material option at the Non-linear Analysis options inside the Basic Settings Tab of the Analyzer Recalc Window for the consideration of the non-linearities in the modeled structure…
Leap bridge concrete Flexure check
Hi
If we define bar length, is leap bridge software have capability to deduct development length based on dia of bar and calculate flexure check at that point.
Variable Longitudinal Stiffeners
LBS inside OpenBridge Designer , allows users to easily create models with longitudinal stiffeners within a girder element with a variable height. After the usual geometry and modeling steps for creating the main girders in the Member Definition tab,…
Coming Soon! OpenBridge Modeler 2023 Release (v23.0.0.xxx) - September 2023
This topic summarizes the new enhancements in OpenBridge Modeler 2023, (v23.0.0.xxx)
Modeler: Boundaries
Boundaries are any border around elements of a cross-section, internal or external to the CS.
The Boundary constraints are defined by a set of connected boundary line segments and the options are shown in the image below.
More information about…
ABS - Absolute values
For the ABS rule we have basically to make a summation of the absolute values, so the formula is simply:
Rtot = Σ|Ri|
When considering it together with the RM superposition method , to get corresponding values, we also have to check the sign of the…
RM Bridge Analyzer: Extras: Loading and Stages: Response Spectra
Inside OpenBridge Designer , at the Extras Menu, in RM Bridge Analyzer , the users will find useful special functions for Loading and Stages definitions including the additional macro for easily generating the extensive input sequence template for standardized…
RM Bridge Analyzer: Extras: Loading and Stages
Inside OpenBridge Designer , at the Extras Menu, in RM Bridge Analyzer , the users will find useful special functions for Loading and Stages definitions. These are additional macros for easily generating extensive input sequences or templates for standardized…
OBM Bearing Pad Definition
Is there a way to place two bearing pads per beam location as shown below?
OpenBridge and OpenTunnel Learning
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OpenBridge and OpenTunnel Learning
In this section you will find the resources needed to navigate the options available for learning OpenBridge and OpenTunnel:
OpenBridge Modeler Accreditation Program
OpenBridge Designer/Modeler YouTube…
Live Load Report Coordinate System
In LEAP Bridge Steel, the Live Load Report for Moments and Deflections gives displacements for Y and Z (no X). What are these directions? Do the match the global coordinate system, which seems to be Y = vertical and Z = transverse?
I'm doing a finite…
WT Shape Orientation in Cross Frame
I have a cross frame with a WT shape for the top strut. Based on the screenshot below, the program seems to be orienting the shape with the flange along the bottom instead of the top. Is this something that can be changed?
Thanks
Open Bridge Designer Leap Bridge Steel - Partial Length Girders
I am pretty new to using Leap Bridge Steel, and have a question regarding a project I am working on. I have attached a general framing plan, and was wondering if Leap Bridge Steel was capable of modeling it, mainly due to the partial length girders. The…
Reference Open bridge model Problem
Hi
I am referencing in OBM model of a bridge into another file. However I notice that I am no longer able to see the bridge components in the open bridge model tab in the explorer tab in home ribbon.
I sometimes encounter error that active bridge…
Rating of Composite Steel Bridge
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…
OBM / RM Bridge
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
…
OBD / RM Rating of Composite Steel Bridge
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…
Cross-Section Slender Parts
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…
Design of Composite Steel Bridge
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
