Functional Testing and Verification of Bridge Hydraulics

Challenge

A hydraulic bascule bridge is a safety-critical application and must be subjected to a functional test before it is put into operation.

Conditions

  • Hydraulic lift bridges must open and close reliably under a wide range of environmental conditions.
  • An emergency stop must be possible at any time.
  • All parts of the design - steel structures, hydraulics, controls, etc. - must be checked for function, durability and safety.

Scope

Verification of safe operation of hydraulic lifting bridges with consideration of different load cases.

Solution

  • Modelling of the hydraulic actuators according to the circuit diagram
  • Modelling of the mechanics of the bridge flap
  • Modelling of the different types of load (wind, snow, etc.)
  • Actuation according to desired motion profiles
  • Simulation of the load cases for different lifting cycles
  • Checking the bridge's operating limits
  • Checking for hydraulic vibrations

Detailed Information

Detailed questions regarding the above-mentioned projects or possible solutions to specific problems will be answered directly by our engineering team.

Engineering Project

Functional testing of the "Rethe" bridge in Hamburg (PDF)

Blog Post

Simulation ensures operation of hydraulic bridges (PDF)

Conference Presentation

EATC-2017.pngValidation of operation of a hydraulic bascule bridge (PDF)