Stress Analysis of Piping Systems

  • Linear and non-liner static analysis
  • Dynamic analysis like earthquake and water hammer and modal analysis
  • Analysis of underground piping systems

We provide stress analysis for pipelines above the ground and underground.

For analysis and calculation, we use ROHR2, CAESAR II or according to the customer´s individual needs, specific softwares as e.g. PIPESTRESS. Where it is not possible to calculate analysis with using of a wire frame model, we use finite elements method in FEMAP, SCIA, RFEM or additional module ROHR2fesu.

It offers opportunity of a multitude of analysis types – static, dynamic (first-order, second-order theory for linear or non-linear boundary conditions).

Complex analysis consists of:

  • Strength analysis of pipelines
  • Calculation of allowable stress of piping systems and associated structures
  • Nozzle load of associated devices and equipment
  • Thermal expansion and piping deformation, deflection and flexibility of piping
  • Concept of expansion joints, dampers, and shock absorber
  • Fatigue analysis
  • Flange joints analysis
  • Optimization of piping systems (Safe operation and cost minimization)
  • Preparation of calculation of isometrics and program outputs
  • Calculation report (also as provable documentation)
  • Nozzle analysis

We provide analysis for following operational cases:

  • Primary loads: dead load and overpressure including pressure test and assembly state
  • Secondary loads, thermal expansion and restricted dilatation loads
  • Wind loads
  • Forces and moment like external loads
  • Earthquake Loads
  • Settlement loads
  • Slug loads and water hammer
  • Valve reaction forces
  • Emergency cases – piping system whip etc.

The documentation is also provable for authorization by the Notified Body.

we are customer-oriented and with full responsibility, we look for the best solution, which ensures a safe system operation and significantly reduces the costs for the pipe delivery, which often exceeds the calculation costs

Stress analysis of piping systems – codes and standards:

  • ASME B31.1, ASME B31.3, ASME B31.4, ASME B31.5, ASME B31.8
  • ASME Class 1, ASME Class 2, ASME Class 3
  • EN 13480 - 3
  • EN 1591
  • AGFW
  • KTA 3211.2, KTA 3201.2
  • BS 7159
  • KRV
  • WRC 537 (107)
  • WRC 297
  • FDBR
  • RCCM Class1, Class 2, Class 3
  • Stoomwezen