Hull Strapping of Ships
/.- .,% , \.+*”:.; THE”SOCIETV OF NAVAL ARCHITECTS AND MARINE ENGINEERS e 601 WVOniS Avenue, Suite 400, Jersey City, New Jersey 07306 USA ~. Paper _wd at the Marks Smctmal In@cm, Maintenarm, and t#onimringSympsium SWIM NatmalHoml,Atiingmn,Virginia,Msrti 1&19, 1931 Hull Strapping of Ships N.S. Basar, -M. Rosenblatt & Son, Inc., New York, New York S.J. Allen, U.S. CoastGuardResearch&DevelopmentCenter,Groton,Connecticut R.B.Hulls, (formerlyofM. Rosenblatt&Son,Inc.)JJHInc.,Hoboken,NewJersey ASSTRACT The use of strapping for category (a) purposes is very rare in present day The paper presents the, resultsof a applications; it was resorted to during and study, sponsored by the Ship Structure after World War II on early all-welded steel Coiimittee and administered by the U.S. Coast ships. Riveted crack arresters (straps) were Guard Research. and Development Center, which installed on many T-2 tankers and Liberty involved a thorough survey of past strapping ships to prevent brittle fracture. designs on fourteen different classes of ships. Data on details of past strapping Many ships have been strapped in the designs were obtained from various sources past for category (b) purposes. Typical including shipowmers, shipyards, applications have included changing the classification .societie6, and the U.S. Navy. veesel’s service from limited inland The variations in the ‘approach to strapping waterways or lake operation to ocean-going design details were noted and a methodology service; converting, a vessel from a dry cargo Was developed. for use in preparing strapping carrier to a container carrier or designs for new applications. oil/bulk/ore carrier; and vice verea.
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