Photovoltaic earthquake-resistant pipe gallery support

4 FAQs about Photovoltaic earthquake-resistant pipe gallery support

How do earthquakes affect pipelines?

Earthquakes generate seismic waves that propagate through the soil and cause temporary and sometimes permanent ground deformations (PGD). Generally there are three different seismic hazards to pipelines. Design for seismic events presents a challenging scenario, as it requires a multi-disciplinary approach to solve a multi-disciplinary problem.

Are ductile iron pipe joints seismic and subsidence resistant?

However it is common practice for seismic and subsidence design to ensure that the proper material is supplied. Ductile iron pipe joint performance can be specified using ISO 16134:2020 Earthquake and subsidence-resistance design of ductile iron pipelines. This specifications allows the pipe to be specified by three different classifications:

How does a pipeline work in seismic applications?

In seismic applications, a pipeline acts like a buried chain. It must expand/contract, deflect, and resist axial forces as a system. If you reduce the length of each link of chain, the more the chain can bend. The same is true with pipe.

How to provide thrust restraint for seismically resilient piping systems?

There are two general approaches to providing thrust restraint for seismically resilient piping systems. Restraint can be accomplished by installing the pipe joints in a fully expanded position which axially transfers the thrust forces. This method of thrust restraint is ideal for installations in liquefaction zones or with soft organic soils.