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Date of Publication:2015-01-01

Journal:起重运输机械

Affiliation of Author(s):机械工程学院

Issue:2

Page Number:34-38

ISSN No.:1001-0785

Abstract:The light weight bridge crane has its weight reduced by adopting advanced optimal design concept under the premise of meeting the strength , rigidity, stability of the metal structure of the girder , for the purpose of reducing the costs.The girder damage is mainly caused by fatigue failure of the strength weld.The paper introduces the fatigue life analy-sis for weld joint of the light weight girder using the numerical simulation method , with research on the regularity of the fac-tors influencing the service life , and recommendation of the optimal type of the girder strength weld.The study result pro-vides certain reference value for reliable design of the strength weld of the box girder.

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