摘要
通过3 根模型梁试验,研究了带裂缝焊接钢吊车梁在偏心移动荷载作用下腹板上部裂缝区域的应力分布及应力变化规律。
Through experiment on 3 models of beams,stress distribution and variety regularities of the upper part of welded steel crane girders with cracks which are subjected to travelling eccentric and concentrated load are studied in this paper.It is concluded that the cycling of the principal shear and tensile stress at the upper part of the web is the main reason for the crane girders whose cracks are developing in use.
出处
《工业建筑》
CSCD
北大核心
2000年第3期40-42,共3页
Industrial Construction
基金
国家冶金局教育司基础理论研究课题
