gjelsvik 中文意思是什麼
gjelsvik
解釋
耶爾斯維克-
The effect of different sizes of sections, modes and values of residual stresses are studied. through the analysis, the conclusion is arrived at that the universal slenderness ratio should be used to better correlate the stability of box section beams with the member length instead of the out - of - plane slenderness, and the stability coefficient is taken to be 1. 0 for practical used box girder. then, the elastic critical loads of box section beam - columns are obtained based on the gjelsvik theory, and the relationship between axis force p and moment m is given
最後，運用ansys通用有限元程序的beam189單元，引入初彎曲和殘余應力的影響，用考慮幾何和材料雙重非線性的有限元求解格式求得箱形柱在不同軸力和彎矩比例作用下的彈塑性極限承載力，通過對十幾個不同截面尺寸構件在不同長細比下的承載力計算，發現在軸力p遠大於彎矩m時，構件將是平面外失穩控制，而當軸力p遠小於彎矩m時，構件則以平面內失穩為主。 -
Because of its simplicity of the critical moment and the good precision, the solutions based on gjelsvik theory are used in the elastic - plastic phase. the ultimate load carrying capacity of box section beams are calculated considering the effect of plasticity and residual stresses
其次，運用基於gielsvik約束扭轉理論推導了箱形偏壓桿的彈性彎扭屈曲荷載，同時給出了壓彎桿在彈性彎扭屈曲的軸力和彎矩相關關系。 -
First, the stability of box section beams under pure bending is studied based on two different torsion theories on members with closed cross - section by umansky and gjelsvik in the elastic phase, and the critical moments are obtained. comparisons show that these two different theories give nearly the same critical moments
文章首先對箱形梁進行研究，分別基於umansky約束扭轉理論和gielsvik約束扭轉理論推導了箱形梁在純彎作用下的彈性臨界彎矩，並進行了比較，發現基於gielsvik約束扭轉理論的臨界彎矩具有較好的精度且形式簡單。
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