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1297-1304•Å
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PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Roger D. Evison, Consulting Engineer, Ian Macallan & Co
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SEISMIC DESIGN OF INDUSTRIAL PLANTS TO THE NEW ZEALAND CODE NZS 4203 : 1976
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New Zealand Standard 4203:1976 is the current Code for building design loads and governs acceptance of structural design generally throughout New Zealand. The Code has some features which confer improved performance under earthquake attack but which are not found in most other seismic Codes. There is no New Zealand Code for industrial plants and the special circumstances of plants call for interpretation and extensions of the Building Code. This paper describes the application of NZS4203 to industrial plants, with examples from the kapuni Ammonia/Urea CompLex. Reference is made to "capacity design" by which selected components are designed to dissipate seismic energy by yielding while all other components remain intact, to allowances for socio-economic importance and for risk or danger to life and the environment, to the reliability of strength values and strain performance of materials, and to the seismic effects of appendages to structures.
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