Browse By Tags

  • allowable deflection of a suspension bridge

    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.
  • short-term and long-term composite cross-section

    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.
  • Steel composite bridge

    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…
  • upward deflection of the continuous bridge structure

    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.
  • Reinf crack for prestressed concrete

    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…
  • Beams outside of Deck edge

    Hi, I am trying to Model a Steel bridge in OBM (Not too worried about analysis, just need a 3D model). Need to find out the best workflow. There are mainly 3 Questions . (Refer to the images below) 1. What type of Bridge I should pick at the…
  • T-beams

    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 ?
  • Arch Bridge - Rm bridge

    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.
  • Modelling Integral bridges in OpenBridge

    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
  • Design of Hanger Reinforcement of Muli-Column Inverted Tee bent

    Recently, I have started working on Leap Bridge Concrete V 17.01.01.11 , and we start questioning whether the hanger reinforcement check has been considered or not on this version, AASHTO 5.13.2.5.5. I couldn't see anywhere checking the combination of…
  • Skew Girder Ends

    How do I modify the beam template to have skewed ends as detailed by TxDOT for skewed bridges? Currently, the beam ends interfere with the abutment backwalls. ftp.dot.state.tx.us/.../igebsts1.pdf We do not want to put the beams on a skew but rathre…
  • how to make template?

  • CONSPAN - Precast Girders at Interior Supports

    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…
  • LEAP Bridge Concrete DW loads

    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…
  • LEAP Bridge Concrete Reactions

    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.