DNV培训船底.pdfVIP

Bulk 结构细分结构细分-船底船底 结构细分结构细分船底船底 Carrier Hull Structural Breakdown - 2. Bottom Bottom 1. 船侧Side 2. 船底Bottom 3. 甲板Deck 4. 横舱壁Transverse bulkhead 5. 底边舱Hopper tank 6. 顶边舱Topside-tank Slide 1 Bulk Carrier 船底结构功能船底结构功能Structural functions of bottom 2. Bottom 船底结构功能船底结构功能 1. 水密性 （局部强度船底/ 内底）Watertight integrity (local strength bottom / inner bottom) - 抵御外部海水压力 （船底）Resist external sea pressure (bottom) - 抵御内部货物和压载压力Resist internal pressure from cargo/ballast fuel oil 2. 船底纵桁承受净载荷Carry net load on double bottom girder structure - 内底板和船底板是纵桁的面板Inner bottom / bottom plate stiffn. are girder flanges - 双层底肋板/纵桁是腹板double bottom floors / girders are webs in double bottom girders 2. 船底是船体梁的腹板Bottom flange in hull girder (global strength) - 船底和内底结构是船体梁的面板Bottom and inner bottom structure is the bottom flange in the hull girder Slide 2 Bulk Carrier 船底结构形式船底结构形式Structural build up of bottom 2. Bottom 船底结构形式船底结构形式 纵桁Longitudinal girders 肋板Floor Slide 管遂Pipe tunnel 3 Bulk Carrier 船底结构功能船底结构功能Structural functions of bottom 2. Bottom 船底结构功能船底结构功能 1. 水密性 （局部强度）Watertight integrity (local strength) 船底板必须抵抗静态和动态外海水 压力和内部压载和燃油的压力Bottom plate must withstand static and dynamic loads from external sea pressure as well internal pressure from ballast or fuel oil 内底板必须承受静态和动态的货物 以及压载和燃油的压力Inner bottom plate must withstand static and dynamic loads from cargo hold as well as static and dynamic pressure from ballast or fuel