In this paper, a new steel-concrete composite spine girder with large cantilevered beams of corrugated steel web (SCCSG) is introduced.

介绍了带波形钢腹板悬臂挑梁的钢—混凝土组合脊骨梁这一新型结构。

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Cracks occurred in the main weld joining the web and upper wing panel of an overhead crane girder of I-section, some of which have expanded to the structure material and even led to girder fracture.

桥式起重机采用工字形截面作为主梁，使用多年后该结构形式的主梁上翼缘板和腹板连接的主焊缝及母材多处产生裂纹，甚至发生主梁断裂事故。

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When a welded I-section plate girder is subjected to bending or shearing, buckling of web in elastic range will be restrained by flanges.

在纯弯或纯剪分别作用下的工字形焊接板梁，在弹性范围内腹板屈曲时，翼缘会对腹板起约束作用。

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