钢结构
鋼結構
강결구
STEEL CONSTRUCTION
2009年
7期
62-65,58
,共5页
蒙皮效应%局部屈曲%弯扭屈曲%畸变屈曲%扭转约束刚度
矇皮效應%跼部屈麯%彎扭屈麯%畸變屈麯%扭轉約束剛度
몽피효응%국부굴곡%만뉴굴곡%기변굴곡%뉴전약속강도
stressed skin%local buckling%flexural buckling%torsional buckling%rotational spring stiffness
讨论国家规范GB 50018-2002<冷弯薄壁型钢结构技术规范>"和欧盟规范EC 3-1-3对冷弯薄壁型钢檩条承载能力的两种计算模式的差异:拉条和屋面板对檩条抗扭约束刚度及其整体稳定的重要影响,进行檩条畸变屈曲和翘曲应力的计算,评估工程实践中可滑动的卷边咬合式屋面板对檩条的抗扭约束刚度以及拉条的构造等对檩条的工况作用问题.对工程实践具有重要参考价值.
討論國傢規範GB 50018-2002<冷彎薄壁型鋼結構技術規範>"和歐盟規範EC 3-1-3對冷彎薄壁型鋼檁條承載能力的兩種計算模式的差異:拉條和屋麵闆對檁條抗扭約束剛度及其整體穩定的重要影響,進行檁條畸變屈麯和翹麯應力的計算,評估工程實踐中可滑動的捲邊咬閤式屋麵闆對檁條的抗扭約束剛度以及拉條的構造等對檁條的工況作用問題.對工程實踐具有重要參攷價值.
토론국가규범GB 50018-2002<랭만박벽형강결구기술규범>"화구맹규범EC 3-1-3대랭만박벽형강름조승재능력적량충계산모식적차이:랍조화옥면판대름조항뉴약속강도급기정체은정적중요영향,진행름조기변굴곡화교곡응력적계산,평고공정실천중가활동적권변교합식옥면판대름조적항뉴약속강도이급랍조적구조등대름조적공황작용문제.대공정실천구유중요삼고개치.
h is studied that the difference of cold-formed purlin structural calculation methods between the national code GB 500 t8--2002 Technical Code of Cold-Formed Thin-Wall Steel Structures and European code EC 3-1-3.Rotational spring stiffness of purlins given by roof sheets and anti-sag bars make an important effects on purlin buckling resistance. Torsional buckling and warping stress of purlin are calculated. Problem of the rotational spring stiffness between purlins and roof sheets with sliding seat and anti-sag bar acting on purlins is considered. This paper may be as a reference for civil engineerings.
