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LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
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RM Bridge
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Primary Creep
Swetha Natarajan
I am looking for RM to print primary Creep. Rm is giving me secondary creep but I want primary creep as well. When I click on results, my primary creep has no output. Can someone kindly help?
1 month ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
non-linear material analysis in RM Bridge
Dang Nguyen Khoa
Hi all. How is non-linear material analysis n RM Bridge understood? Best regards.
1 month ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
[RM Bridge] stiffness Traveller of Main Girder
Dang Nguyen Khoa
hi all, I have a few questions as follows: 1. During the construction of cable-stayed bridges, does the Traveler of Main Girder stiffness model always have to be considered for cable-stayed bridges to increase the stiffness of Kn girders? 2. If…
1 month ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
the effect of cable sag
Dang Nguyen Khoa
Hi all. How does RM Bridge consider the effect of cable sag? Best regards.
1 month ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
allowable displacement of towers under live load
Dang Nguyen Khoa
Hi all. In the design of a cable-stayed bridge, what is the allowable displacement of the A and H shaped towers under live load? Best regards.
1 month ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
allowable deflection of a suspension bridge
Dang Nguyen Khoa
Hi all. Can you tell me what the allowable deflection of a suspension bridge is? And what standard is this deflection limit based on? best regards.
2 months ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
short-term and long-term composite cross-section
Dang Nguyen Khoa
Hi all. In composite steel girder bridges with concrete decks (continuous span bridges), does RM bridge automatically Calculator effective width of deck to calculate short-term and long-term composite cross-sections? best regards.
2 months ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Steel composite bridge
Dang Nguyen Khoa
Hi all. I hava some question about steel composite brige as follows: 1. To calculator stress point of section, Rm Bridge automatic use short-term section for live load and load case type Non-permanent and use long-term section for load case type Permanent…
2 months ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
upward deflection of the continuous bridge structure
Dang Nguyen Khoa
Hi all. In continuous beam structures, the allowable downward deflection of the bridge under HL93 load is L/800. So may I ask what is the upward deflection of the continuous bridge structure under HL93 load? best regards.
2 months ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Use No tens and ReloadSup functions in RM Bridge
Dang Nguyen Khoa
Hi all. in steel girder bridges combined with concrete decks (continuous span girder bridges). If the concrete deck is not in tension and the combination of internal forces according to the Service limit state is service.sup, then use the ReloadSup function…
2 months ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
RM Bridge REPORT generate for modeler
BK Lee
We can generate a nice looking report of analyzer data. Seriously we need report of modeler data(segment, cross section,..etc.). How can we do it?
7 months ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Minimum reinforcement
Ivana Tadic
Hi, I have question regarding calculation of minimum reinforcement in RM Bridge. In schedule action I put robust check and note that the detail list file to be provided. The thing that confuses me after opening the detailed list file is formula…
Answered
11 months ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Sign Convention of Beam Elements in RM Bridge
John Cheng
I am used to the sign convention of SAP2000 but RM Bridge uses a different coordinate system (Axis 3 pointing into 1-2 plane as opposed to out of 1-2 plane in SAP2000). I would like to know the sign convention of start/end force/moment, so that I can…
over 1 year ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Two bridges connection
Kenny Paz
Hello, I,m trying to create a Bent where 2 separate bridges meet, is this even possible to model in Openbridge Modeler? Ultimately, I want to transfer the model to LEAP to run the analysis.
over 1 year ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Modeling P/S slab with circular holes
Javier Fernández Gramage
Hi, I'm trying to model a bridge which is very usual in Spain, prestressed concrete slab with variable edge and circular holes to make it lighter (see pictures below) Section with minimun edge, situated on center of span and with circular holes. …
Answered
over 1 year ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Principal Stress check in RM Bridge
Tran Nhu
Dear Mrs./Mr. In my calculation, I'm using RM-Set to plot SIGI principal stress of concrete box girder. As the results plotted, I observed that there is some elements (el. 124, 127, 157 & 160) has a confusing principal stress result, SIGI princ. stress…
over 1 year ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
An issue in Tendon definition in RM bridge
Bang KD
Dear All, I have modeled a PSC voided slab bridge (full staging construction method). Below is the plan view of tendon placement for the main girder. There is an issue related to the tendon definition. For example, tendon no. 3213 (shown by black…
over 1 year ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
RM Bridge suspension bridge model - cable node DOF
Simon Ye
I am currently working on a suspension bridge model in RM Bridge. When I run the analysis, it has error messages saying that the cable nodes need global DOF 3, but restraining DOF 3 using node support would cause the cables not able to move laterally…
over 1 year ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
shear longitudinal reinforcement bars placement
Ivana Tadic
Hello! I have question regarding arrangement of the bars of the shear longitudinal reinforcement. Namely, if I define reference set for shear longitudinal reinforcement like shown in picture 1, does it mean I should place my bars like shown in picture…
Answered
over 1 year ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Error e0053
Paulo Mendoza
Hello again, I have other question, I tried to conect OP model with RM Bridge but the program send me an error, I don't know how can I fix it Do you know how to fix the error E0053? or give an idea of what this Error E0053 wants to tell me
over 1 year ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Commonly used loadcase file (*.lc) among schedule variants like superposition file (*.sup)
Kyoung-hoon Leem
With very old version of RM2006(9.xx.xx) we could create and use loadcase file (*.lc, ex camber.lc ) using LcInit module, which was stored in project root directory, thus it could be utilized in other schedule variant like *.sup file. It was very usefu…
Answered
over 1 year ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Moment of Pre-tendon in asymetric section
Loc Nguyen
Dear Bently supporters, I have modeled a simple span with a asymetric cross-section (pic as below). After running analyzer, i recieve a warning message that i shoule rotate section to calculate accrurate stress in asymetric section. Then i did some following…
Answered
over 2 years ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
RM Bridge - required reinforcement - Wizard model
Ivana Tadic
Hi everyone, I have one question regarding the amount of the reinforcement required in calculation. Namely, I modeled the composite bridge structure using Wizard option in RM Bridge. For longitudinal reinforcement, wizard already defined the A1 reinforcement…
Answered
over 2 years ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
RM bridgre : Transverse analysis and design
Momtez Zrafi
hi guys, currently, I try to analyze the transverse behavior of the u-shaped bridge deck. So I need someone to help me please. how can i plot the diagram of the transversal bending moment when I use a FEM model like the following example
Answered
over 2 years ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
Cable stayed bridge modeling OBM or RM
Andrew Easley
I am modeling a conceptual design for a cable stayed bridge. I have modeled other bridges in Open Bridge Modeler however I dont think it allows for cable stayed bridges. I know RM Bridge does. Should i Just try and do everything in RM? the main goal of…
over 2 years ago
LARS | LEAP | OpenBridge | OpenTunnel | RM
LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
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