焊接工字梁腹板屈曲后強度的利用
丁陽 韓慶華 尹越 劉錫良
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丁陽 韓慶華 尹越 劉錫良
（天津大學建工學院土木系 300072）[提要] 不少國家已把利用焊接工字梁腹板的屈曲后強度繼續(xù)承受荷載列入鋼結構設計規(guī)范。但《鋼結構設計規(guī)范>(GBJ17 - 88)還沒有這方面的條文規(guī)定。通過對焊接工字梁腹板屈曲后強度的理論分析及試驗研究，得出了一些對規(guī)范修訂有重要參考價值的結論。
[關鍵詞] 焊接工字梁腹板 屈曲后強度The post-buckling strength of web plate of I-section girder is considered to resist the shear force in many other countries' code for design of steel structures, while it has not been considered in the Chinese code GBJ17-88. For the code revising, some important conclusions have been drawn through the theoretical analysis and experimental research of the post-buckling strength of web plates of I-section girder.
Keywords: l-section girder; web plate; post-buckling strength
