Validation of Seismic Performance of Stainless Press-to-Connect Piping System under Cyclic Loadings

Earthquakes with magnitudes over 5.0 occurred near Gyeongju and Pohang in southern Korea 2016 2017, respectively. These earthquakes had both low- high-frequency components. Due to motions, damage nonstructural systems has been observed be relatively more than that structural systems. Consequently, the seismic design or performance evaluation of components critical facilities emerged as a key research area Korea. This study presents results experimental numerical analyses using high-fidelity finite element (FE) simulation ABAQUS platform for press-to-connect piping system component. Press-to-connect based on NFPA-13 two elbows, flexible coupling, T-joint were used. In addition, cyclic loading protocol was applied KBC IBC 2015. Based component-level test, an FE model elbow developed, large-scale validated this study. analytical results, no leakage plastic deformation under conditions. The identical those test. More specifically, error von-Mises stress at upper lower elbows less 9%, angle between 2%, corresponding limit state drift ratio building system. Therefore, can have high application value. requirements engineering demands system, such condition ASME B PV section III service level D, satisfied.