[PDF] Top 20 Seismic Proving Test of Eroded Piping (K308)

... the piping system test was conducted by using the material property that could evaluate the strain range ...the piping model as the forced deflection and comparing the calculated and observed strain ... See full document

... pressurized piping configurations tested on shaking ...the test designers decided to focus on investigating this failure mode instead of trying to identify the available seismic margin for a single ... See full document

... measured seismic wave at Kobe Ocean Meteorological Observatory in 1995 (This is indicated as “Kobe earthquake” in this report) and an artificial earthquake wave S2 for evaluation of a practical nuclear power plant ... See full document

... on test and calculation results as well as relevant code items in RCC-M ,ASME and Chinese seismic design codes, it is suggested that damping ratio shall have a value of 5% for piping structure which ... See full document

... The nonlinear factor FNL is highly sensitive to both the ratio Rw of the central frequency of the input motion to the component natural frequency, and the breadth of the frequency [r] ... See full document

... The following are the major results. 1) In the tests from 2S2(H) to 5S2(H), no structural collapse occurred and no failure in the leak-tight function of the liner system was o[r] ... See full document

... the test is conducted in real time, the dynamics of the testing system and specimen become ...the test specimen, a time lag exists between when the displacement is commanded and when the actu- ator actually ... See full document

... verify seismic capability utilizes realistic seismic demand and realistic capacity ...table test data demonstrates that the realistic analysis criteria, while not necessarily as conservative as the ... See full document

... scaled piping model and the FEM analyses have been performed to investigate the seismic response and failure behaviour of crossover ...crossover piping model was excited and deformed by the two ... See full document

... plant piping systems may be loaded into the plastic range due to large amplitude reversible cyclic loading like seismic ...pressurized piping system. The piping system is pressurized with ... See full document

... scale piping system under consideration consisted of a 200 mm (8 inch) nominal diameter schedule 40 carbon steel ...The piping system included straight pipe, nine elbows, a tee, and a 1000 kg added mass ... See full document

... excessive seismic loads are mainly thought to be 1) fatigue failure, 2) ratchet-collapse, and 3) ductile fracture in the case of low ductile ...plate-type test pieces and the pipe elbow ...the test ... See full document

... design seismic hazard has become a prior concern that has increased the need of evaluations of NNP’s structures or their components within a higher level of seismic load by taking into account nonlinear ... See full document

... in piping system was defined as a weakness element and numerical model was updated by component ...of piping component under seismic load was defined in conservative terms as cases in which ... See full document

... improved seismic fragilities. As per Gilmore & Jirsa (2005), a seismic analysis & design procedure which doesn’t take into account the cumulative plastic deformation demands under earthquake ground ... See full document

... element test as shown in Table 1 have been proceeding, selecting test parameters such as element type, pipe size, dimensions of support element, and anchor ...both test models of cantilever type ... See full document

... plant piping systems under large seismic ...material, piping component and piping system ...on seismic issues, the US Nuclear Regulatory Commission (USNRC) and its contractor, the ... See full document

... The Seismic Proving Test of Heavy Component with Energy Absorbing Supports has been conducted to prove the reliability of advanced seismic technology, supporting h[r] ... See full document

... target test conditions that are equivalent to the pre-test analysis conditions shown in Table ...input seismic wave spectrum on the table differed from the target spectrum and the maximum ... See full document

... actual test set-up for determining the force-displacement and moment-rotation relationships of the threaded Tee-joint connection under monotonic and cyclic loading ...The test-setup was erected in such a ... See full document