This paper focuses on the research of the stress mechanism of the ribbed shell structure in statics, dynamics and under the explosive load on the basis of the engineering practice of cave depot of single aircraft. in this paper, according to the classical shell theories, the basic differential equilibrium of the ribbed shell structure and the finite element analysis of 3d rippled plate are established, in which the function of annular ribs reinforcement bars and 3d ripped steel plates are distributed in the range of the steel, and the functions along the longitude direction of tension, bending, and torsion are neglected ; applied with dynamic analytical theory, the dynamic model of ribbed shell structure and the analytical theory model of elastic - plastic are set up ; the triangle series method is used to solve the displacement and stress under the distributed load and the concentrated load of the ribbed shell structure
本文以軍用機場地面單機掩蔽庫工程建設為工程背景，首次對內襯三維波
紋鋼板混凝土拱型復合結構的受力機理進行了靜力、動力和爆炸荷載的分析研究。根據將橫
肋、鋼筋及三維波
紋鋼板的作用均勻分佈在殼體范圍內的情況，忽略橫
肋、鋼筋及三維波
紋鋼板沿殼體母線方向的抗拉、抗彎及其抗扭作用，首次推導出了內襯三維波
紋鋼板混凝土殼體的微分平衡方程，建立了有限元計算模型，並採用三角函數法，求解了三維波
紋鋼板混凝土拱型復合結構在分佈荷載和集中荷載作用下的位移響應和應力響應，並與普通殼體進行了比較。
The company ' s main products include : ordinary - type, forward - and - backforward - thread typeandcalibre - changed type, three series and 50 - odd varieties of steel straight thread connecting sleeve piece and steel straight thread screw rolling machine, screw rolling wheel, cutting tool, reinforced thread head special gauge, moment spanner ect., auxiliary tools which are used in construction
公司主要產品有標準型、正反絲型、變徑型三大系列五十多個品種的建築用鋼筋直螺
紋連接套筒和鋼筋直螺
紋（剝
肋）滾絲機及滾絲輪、切削刀具、鋼筋絲頭專用量規、力矩扳手等輔具。
Areospace - screws, pan head, internal offset cruciform ribbed or unribbed drive, pitch diameter shank, long length mj threads, metallic material, coated or uncoated, strength classes less than or equal to 1100 mpa - dimensions
航空航天.強度級小於或等於1100mpa的塗層或未塗層金屬材料制節徑桿長長度mj螺
紋的內偏移十字形
肋狀或非
肋狀驅動的平頭螺釘.尺寸
A lot of oil tanker failure was reported in recent years, which attracted much attention of navigation industry. after investigation and analysis, fatigue crack was suspected to be one of main causes. the fatigue cracks were discovered mostly on the side longitudinals at the connections to transverse bulkheads or transverse webs
近年來，世界上有大量的油輪在海上失事，這一現象引起了各國航運界的高度重視，通過組織力量對油輪失事原因進行調查分析，認為一個重要的原因是艙內
肋骨與上下翼艙的連接處的疲勞強度不足，導致艙室進水，然後波
紋橫艙壁破壞導致進水過多而沉沒。
As the shadow rises, it breaks into a cloud of tautly ribbed sail, aflame in the tropical sun
隨著陰影漸升，卻化為眾帆如雲，
肋紋畢現，在熱帶的陽光下映出閃閃紅光。
Produces and distributes rare earth materials from china, as well as magnesium, calcium and zirconium based products to various industries
-生產線材螺
紋鋼圓鋼冷軋高強度帶
肋鋼筋及焊網等產品。
Application about the technology of thick reinforcing bar equal strength peeling ribs rolling direct whorl linking in zhongguancun science and technology mansions engineering
粗鋼筋等強度剝
肋滾壓直螺
紋連接技術在中關村科技大廈工程中的應用
Equal strength issue in the rib - peeling, cold - rolled straight screw connection technology
鋼筋等強度剝
肋滾壓直螺
紋套筒連接技術及現場質量控制
The application of the rib - peeled, straight - screw - rolled rebar connection technology
鋼筋剝
肋滾壓直螺
紋連接技術的應用
The application of conjunction technique with rolling screw thread shucking out of rib to jointing of reinforcing bar cage
剝
肋滾壓直螺
紋連接技術在鋼筋籠對接中的應用
Screws, pan head, internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length mj threads, metallic material, coated or uncoated, strength classes less than or equal to 1100 mpa - dimensions
強度級小於或等於1100mpa的塗層或未塗層金屬材料制階梯形桿短長度或中等長度mj螺
紋的內偏移十字形
肋狀或非
肋狀驅動的平頭螺釘.尺寸
Aerospace - screws, 100 reduced countersunk head, internal offset cruciform ribbed or unribbed drive, normal shank, short or medium length mj threads, metallic material, coated or uncoated, strength classes less than or equal to 1100 mpa - dimensions
航空航天.強度級小於或等於1100 mpa的塗層或未塗層金屬材料標稱桿短長度或中等長度mj螺紋的內部偏移十字形肋狀或非肋狀驅動的小於100的埋頭螺釘.尺寸
