DESIGN METHOD OF LEG STRUCTURE OF JACK-UP RIGS  

作　　者：T.Ohta H.Yamauchi M.Toriumi Engineering Research Center,NKK Corporation,Kawasaki,Japan 

出　　处：《Journal of Hydrodynamics》1993年第4期57-62,共6页水动力学研究与进展B辑（英文版）

摘　　要：The structural failures of jack-up rigs were mostly found in leg structures,due to cracks in way of connections between tubular members of leg structures.Although,stress calculations of leg structures can be made by using“finite element techniques”,it takes a lot of time to complete the calculations for the full cases of all working conditions because of many tubular members.Therefore,a simple method for the stress calculations for design purposes is strongly desired.This paper desribes a simple stress calculaiton method of leg structures and shows a satisfactory results as compared with the results obtained by a detailed calculation method.The structural failures of jack-up rigs were mostly found in leg structures,due to cracks in way of connections between tubular members of leg structures.Although,stress calculations of leg structures can be made by using“finite element techniques”,it takes a lot of time to complete the calculations for the full cases of all working conditions because of many tubular members.Therefore,a simple method for the stress calculations for design purposes is strongly desired.This paper desribes a simple stress calculaiton method of leg structures and shows a satisfactory results as compared with the results obtained by a detailed calculation method.

关 键 词：jack-up rigs leg structures simple design method stresses 

分 类 号：TV131.2[水利工程—水力学及河流动力学]