Eurocode 8 Part 4 Silos, tanks and pipelines （第4部分Eurocode 8筒仓、坦克和管道）.pdfVIP

EUROCODES Background and Applications Brussels, 18-20 February 2008 – Dissemination of information workshop 1 Eurocode 8 Part 4 - Silos, tanks and pipelines Part 6 – Towers, masts and chimneys E C Carvalho, Chairman TC250/SC8 EUROCODES Background and Applications Brussels, 18-20 February 2008 – Dissemination of information workshop 2 EN 1998-4 – Silos, tanks and pipelines 1 - General 2 - General principles and application rules 3 - Specific principles and application rules for silos 4 - Specific principles and application rules for tanks 5 - Specific principles and application rules for above-ground pipelines 6 - Specific principles and application rules for buried pipelines Annex A - Seismic analysis procedures for tanks Annex B - Buried pipelines EUROCODES Background and Applications Brussels, 18-20 February 2008 – Dissemination of information workshop 3 General aspects to be considered in design • the nature and amount of the contents and associated potential danger • the functional requirements during and after the seismic event • the environmental conditions. EUROCODES Background and Applications Brussels, 18-20 February 2008 – Dissemination of information workshop 4 Safety requirements Ultimate limit state: Structural failure or State prior to failure when consequences are severe (controlled release of contents should be ensured) This requirement should be met for a reference seismic action with 10 % probability of exceedance in 50 years (recommended value) i.e. with 475 years Return Period EUROCODES Background and Applications Brussels, 18-20 February 2008 – Dissemination of information workshop