Highway bridge

Bridge modeling and moving load analysis

  Bridge analysis using frame and Shell elements
  Bridge vehicle loading by ASSHTO, Korean standard and user defined loading
  Bridge lane loading
    1. Point loading
    2. Line loading
    3. Area loading

  Automatic distribution of vehicle and lane loadings to nodes
  Automatic generation of load patterns/cases based on vehicle and lane loading
  3-D deformation simulation for multiple load patterns/cases
  Generation of stress envelops and stress combinations
  Dynamic moving axle loading
  Impact factor calculation under moving load


Pre-stressing analysis of P.C. box girder bridge

  Generation of tendon profile by parabolic curve and equation
  Generation and transfer of pre-stressing forces
  Adding and removing of members, loading, tendon, cable and traveler
  Loss of pre-stressing:
   - Instantaneous loss: elastic shortening, friction and anchor slip
   - Time dependent loss: creep, shrinkage and relaxation
  Construction stage analysis

Calculation of cable pre-tension for cable-stayed bridge using optimized techniques
(Constraints: Tower displacement, girder displacement & forces & moments, cable yield strength)

< Modeling of cable stayed bridge >

< Postprocessing of cable stayed bridges >

< Construction stage analysis of P.C. cable stayed bridge >

< Grid model >

Deformed shape of the 3-D non-prismatic curved box girder bridge
Using automatic load distribution

Automatic load distribution of the lane pressure loading on the shell element

Railway bridge

  Static train loading
  Dynamic moving train axle loading
  Dynamic analysis of articulated train-bridge interaction (KTX/TGV)
  Dynamic analysis of Independent train-bridge interaction (Shinkansen/Taiwan)
  Passenger ride  comport analysis
  Train operation safe  analysis
  Cable supported bridges

< Dynamic analysis of bridge train interaction under moving load >

< Figure KTX/TGV Model >

< Figure Shinkansen /Taiwan >