Compliance no longer can be achieved with engineering analysis alone. When qualifying on a shake table, testing must adhere strictly to AC156 criteria for non-structural systems and components. The VMC Group, for example, certifies equipment on a tri-axial seismic simulator that punishes it with thousands of pounds of force.
Wegai specializes in qualification of all types of electrical and mechanical equipment by seismic testing and have overseen shake table tests in laboratories throughout north america, europe, and asia click here for lab affiliates.bill started his career in the mid 70s with anco engineers, a company specializing in development of vibration testing equipment and testing services.
Seismic qualification of substation equipment was published in 2006 2. the standard requires that equipment and components of higher voltage classes must be seismically qualified by multi-axial testing on earthquake simulators shake tables. in general, equipment requiring shake table testing possesses vulnerable characteristics, such as massive
Special seismic qualification by shake table testing of nonstructural components and systems, which is acceptable to ibc, uniform building code ubc, oshpd and other local building code governing agencies. ac-156 outlines procedures for seismic certification by testing of nonstructural components. testing done in
Determination of effectiveness of viscoelastic dampers in controlling the seismic response of piping system by shake table testing
Table 1 describes the different qualification and certification processes and provides a relative level of credibility associated with each process. for example, a standard product that is qualified by shake-table test or engineering analysis is level 4 qualification.
Ieee 344 defines test requirements for safety related equipment in nuclear power plants. another recent earthquake test is the icc-es ac156 test that defines the acceptance criteria for seismic certification by shake-table testing of nonstructural components. read more about seismic testing.
Shake table seismic we are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment.
Has been ias accredited to ac-156 seismic testing lab standards since 2001. existing certifications meet all testing criteria for oshpd, icbo, ibc, asce 7-05, and ubc standards. the international code council evaluation service acceptance criteria for seismic certification by shake-table testing of nonstructural components is the most
Aug 17, 2020nbsp018332icc es ac156 seismic certification by shake-table testing of nonstructural components test methods referenced in section 6.0 ieee std. 344 seismic qualification of equipment for nuclear power generating stations ieee std. 693 recommended practice for seismic design of substations testing practices only
Essential elements of equipment seismic qualification to asce 7 by shake table testing ... abstract. this paper details the role that a building code recognized shake table test protocol for nonstructural building components serves to insure clarity for both the manufacturer and design professional to simplify compliance. without a building ...
Chapter 17 of the international building code 1bc requires manufacturers of designated equipment to provide a certificate of compliance verifying that the equipment will meet pertinent earthquake load criteria. the evidence of compliance must be by actual test on a shake table, by an analytical method using dynamic characteristics, by the use of experience data, or by more rigorous analysis ...
Condor2 seismic monitoring system seismic qualification as the regulatory guidelines and requirements for nuclear power plants change in parallel with technological advances, kinemetrics has modernized its already successful condor seismic monitoring system solution and updated it into the condor2. one of the multiple challenges of introducing a new solution to the nuclear industry is
Shake table testing of steel and concrete building models led to the development of physical data and hysteretic models for cyclic behavior. testing also contributed to the identification of dynamic effects on structural systems such as soft-story behavior, and the dynamic amplification of shear forces. ... seismic qualification and other ...
1.4. time history shake-table testing seismic qualification by time-history testing of the equipment using a shake table is a rigorous test method which is considered to provide clear evidence of the capability of equipment to withstand seismic forces. seismic qualification by time-history testing can be divided into two steps namely,
15, the seismic qualification testing can be accomplished by either shake table testing, analysis or experience data. this paper focuses on the definition of a simple procedure to evaluate the seismic perfor-mance of non -structural elements through the results of shake table tests. shake tables tests
Aug 01, 2014nbsp018332the seismic qualification of hollow brick partitions is carried out by the earthquake simulator system available at the laboratory of the department of structures for engineering and architecture at the university of naples federico ii. the system consists of two 3 m 215 3 m square shake tables.
Extensively shake table testing is used for the seismic qualification and research purposes. it provides the means to excite structures in such a way that they are subjected to conditions representative of true earthquake ground motions. the seismic qualification tests were conducted as per the test procedure given in ieee std 344-1987 ...
We operate 2 tri-axial shaker tables and a rim random input motion table in our large mechanical testing lab. our nuclear parts and qualification group performs ongoing seismic qualification for nuclear stations, which comprise canadas 22 candu174 reactors, as well as testing for several canadian and u.s. component manufacturers.
A qualification that guarantees this can be obtained by testing the equipment on a seismic shake table. the qualification can be obtained by following ieee institute of electrical and electronics engineers standard 344, which containes the recommended practices for seismic qualification of class 1e equipment for nuclear power generating ...
Nts, in accordance with the state of californias office of statewide health and planning division oshpd, now offers full seismic testing, certification, and report submittal for testing to ac-156, acceptance criteria for seismic certification by shake table testing of nonstructural components.
The mts seismic simulator portfolio features a host of standard, pre-engineered and custom tables for evaluating everything from nonstructural infrastructure to structural components and substructures to model-scale and full-scale civil structures. precise seismic loading in up to six degrees-of-freedom can be applied to a broad array of test articles to evaluate their behavior under real ...
For seismic qualification by shake-table testing of nonstructural components and systems. in addition to shake-table testing, manufacturers can qualify systems through mathematical modeling using computer programs and accepted engineering standards that are outlined in asce 7.
Structural modeling alone is not a sufficient method for seismic qualification. when qualifying by shake table testing, strict adherence to ac156 must be followed. single axis, dual axis or triple axis shake table testing are all acceptable methods. during shake testing, the unit under test uut must contain the required fluids that it
Products were 3d shake table tested in accordance with icc-es-ac156 quotacceptance criteria for seismic qualification by shake-table testing of nonstructural components and systemsquot products are rated to perform successfully during and after seismic activity developed for areas and installations with stringent seismic requirements
Wegai has been a pioneer in equipment qualification by shake table testing long before the oshpd requirements for special seismic certification. we have been the primary engineers overseeing the testing and qualification of multiple oshpd osp listings.