Study on seismic safety evaluation of water supply pipeline networks

The purpose of this paper is to evaluate the seismic safety of water supply pipeline networks. It proposes a definition of seismic safety of water supply pipeline networks based on research results regarding seismic damage prediction and functional failure analysis of such networks, referring to the basic concept of safety. The definition proposes restrictive criteria and finality criteria. This paper establishes a division standard for the seismic safety level of a water supply pipeline networks. It establishes a preliminary evaluation method and model of the seismic safety of the water supply pipeline networks in combination with a seismic damage prediction model and functional failure analysis model. It makes it possible to evaluate whether a water supply pipeline networks meets the current seismic specification requirements. This evaluation method can also provide a scientific basis for urban earthquake disaster reduction and reconstruction. Finally, with this method, the water supply pipeline networks seismic safety is evaluated for Harbin and corresponding suggestions are put forward.