The cost of damage to the non-structural systems in critical facilities like nuclear power plants and hospitals can exceed 80% of the total cost of damage during an earthquake. The failure of nonstructural components, especially, piping systems led to leakage of water and subsequent shut-down of hospitals immediately after the event. Consequently, the evaluation of performance of these types of structural configurations has become necessary to mitigate the risk and to achieve reliable designs.
A piping system is composed of pipes with various thickness, diameter and length. Accurate analysis of a piping system requires a complicated three-di…
Piping seismic analysis and design is a critical aspect in piping system engineering. Read the blog to take a look at the benefits of seismic design of piping system for any plant.
The Nuclear Power Engineering Corporation (NUPEC) of Japan has conducted a multi-year test program for the Ministry of Economy, Trade and Industry (METI) of Japan to investigate the behavior of typical Nuclear Power Plant (NPP) piping systems under large seismic loads. The objectives of this program are to develop a better understanding of the elasto-plastic response.
In this paper, the effect of earthquake loading on the design procedure of piping systems is determined. An example of a typical expansion pipe unit is analysed with three different methods: a static analysis and harmonic analyses with acceleration on the mass and harmonic displacement of the support.