1、Recommended Practice for Planning,Designing,and Constructing Heliports for Fixed Offshore PlatformsAPI RECOMMENDED PRACTICE 2LFOURTH EDITION,MAY 1996EFFECTIVE DATE:JUNE 1,1996REAFFIRMED,JANUARY 2012Copyright American Petroleum Institute Copyright American Petroleum Institute Recommended Practice for
2、 Planning,Designing,and Constructing Heliportsfor Fixed Offshore PlatformsUpstream SegmentAPI RECOMMENDED PRACTICE 2LFOURTH EDITION,MAY 1996EFFECTIVE DATE:JUNE 1,1996REAFFIRMED,JANUARY 2012Copyright American Petroleum Institute SPECIAL NOTES API publications necessarily address problems of a general
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12、flict.API standards are published to facilitate the broad availability of proven,sound engi-neering and operating practices.These standards are not intended to obviate the need forapplying sound engineering judgment regarding when and where these standards shouldbe utilized.The formulation and publi
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15、r written permission from the publisher.Contact the Publisher,API Publishing Services,1220 L Street,N.W.,Washington,D.C.20005.Copyright 1996 American Petroleum InstituteCopyright American Petroleum Institute FOREWORD This recommended practice provides a basis for planning,designing,and constructingh
16、eliports for fixed offshore platforms.This recommended practice does not propose a“standard”heliport,but recommends basic criteria to be considered in the design of futureheliports.It is not to be construed as being applicable to existing heliports.Metric conversions of British Imperial Units are provided throughout the text of thepublication in parenthesis,for example,6 inches(152 millimeters).Most of the convertedvalues have been rounded off for practical purposes;however,precise conversions h