山东省博物馆新馆主体结构为钢筋混凝土框架-剪力墙结构,顶部为水花状钢结构穹顶。穹顶钢结构采用空间扭曲的焊接薄壁箱型构件。重点介绍了穹顶钢结构的设计,并针对空间扭曲的形状对焊接薄壁箱型构件的影响和焊接薄壁箱型构件在拉、压、弯、扭复杂应力作用下加劲肋的合理设置进行了分析和试验研究。 The main structure of Shandong Museum new museum for the reinforced concrete frame - shear wall structure, the top of the water-filled steel dome. Dome steel structure using space-warping welding thin-walled box-type components. The design of the dome steel structure is introduced emphatically. According to the influence of space distorted shape on the welded thin-walled box structure and the reasonable setting of the stiffener under the complex stress of drawing, pressing, bending and twisting of the welded thin-walled box element Analysis and experimental research.