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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.

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.

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…

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.

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…

Hello, I have a problem in the beam section analysis. I assigned rebars to the beam but the program says I have "0 Ast_prvd" at the transfer location and I want to know if there is any way to fix this or if there is a special setting I should look for…

Hi all. I have a question about Reinf crack for prestressed concrete as follows: If you calculator stress bot of section beam in MinMz_Service exceeding allowable stress tension limit is 0,5 x sqrt(f'c), you can calculator reinf area to control crack…

How do I calculate AX, IX, IY, IZ, AY, AZ, YD, and ZD for a T-BEAM bridge section in the general option in STAAD ?

hello Everybody! At this time! Can you help me? How to draw " this member " of Arch Bridge in Rm-Bridge? Note: only is red lines in the picture.

Hi OpenBridge Community, Has any body modeled any Integral or simi-Integral bridges in OpenBridge Modeler? Has any body come up with a method for producing a 'down stand' as shown below? Thanks Oliver

The bridge I'm analyzing has a flared girder and superstructure at the expansion piers. This is the cross section I have defined for this bridge: In order to directly obtain the area of steel required to resist direct shear; I removed the stirrups…

I am using CONSPAN in my design and have a couple of questions about the method in which the program performs calculations. Does CONSPAN design prestressed girders, at the interior supports, as reinforced concrete beams? According to AASHTO, LRFD 5.14…

How does LEAP Bridge Concrete calculate the reactions for DL-Comp. (DW)? I added up all the DW reactions and compared to a hand calc of utlities and overlay loads. The total DW is nearly 4 times greater than my hand calcs. I have 4 beam lines with 0.05…

In the Shear/Moment Envelope (&Reactions) Design output what is the difference between live load Max, Truck, and Lane? Is the max HL-93 including truck and lane loading? I have a 6 span continuous concrete superstructure.