集 装 箱 绑 扎系统介绍

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1、集装箱绑扎系统介绍集装箱绑扎系统介绍INTRODUCTIONOFCONTAINERLASHINGSYSTEM3.Shipaccelerations船舶加速度Inasimplifiedcomparisonyouwillfindonthethemaincharacteristicsandtendenciesforthecurvesofaccelerations各船级社船舶加速度对照曲线示意图.Theseaccelerationcurvesshowsthedifferencebetweensomeclassificationsocietie

2、s.这些曲线反映力不同船级社对船舶加速度的不同规定.Forcontainersecuringmostimportantisthetransversalacceleration.Forexampledeckaccelerations.对集装箱绑扎来说,最主要的是横向加速度,例如甲板上的横向加速度.Deck:甲板上:GLaccelerationsincreaseat0.2and0.6Lppfromaftperpendicular加速度在距尾垂线0.2Lpp及0.6Lpp处递增.LRaccelerationsincreaseat0.25Lp

3、pfromforeperpendicular,ifnobreakwaterexists若无防浪板,加速度在距首垂线0.25Lpp处增加.BVaccelerationsincreaseregularfromthemiddleofLpp加速度在船中处向两侧递增.DNVhavethesameaccelerationforthewholeship加速度全船一致.ABShavealreadythesameaccelerationforthewholeship,ifthevesselhaveaBilgeKeeltheaccelerationsca

4、nbereduced加速度全船一致,若有防摇鳍,加速度可减小.-4-4.Securingfittings绑扎件4.1Maximumpermissibleforceswhichmayactonthesecuringfittings绑扎件最大许用力DependingontheclasssocietytherearedifferentsafetyfactorsbetweenSWL,ProofloadandBreakingloadpoints.Assumingthatforexistingandifpossible,commonfitting

5、sthebreak-pointisatanevenlevel,theSWL’sandproofloadsvaryconsiderably.Thereforeyouwillfindalistwithforceswhichmaynotbeexceededintheresultoflashingevaluations:由于各个船级社对安全工作负荷,试验负荷及破断负荷之间所采用的系数是不同的.即便假定现有的绑扎件的破断负荷是在同一水平上的,所得到的安全工作负荷也是不同的.因此存在一系列不同的受力,而这些受力在计算中都是不可超过的.Thepro

6、posedloadsinaccordancewiththeGLandLRrulesrespectively.GL及LR规范的受力要求.GLhavedifferentfactorsfordeckandholdbecauseoftheloweraccelerationsinhold,moreoverthecont.inholdarenotwindexposed.GL对于甲板上及货舱内的系数考虑是不同的,原因是GL所规定的货舱内的加速度较低,并且货舱内的集装箱是不受风力影响的.-5-5.Securingsystemsondeck甲板上堆放系

7、统TheconventionalsecuringsystemondeckconsistsmainlyofTwistlockstoconnectthecontainersbetweenthelayersalsowiththedeck.甲板上集装箱的绑扎方式通常通过钮锁连接集装箱层及同甲板之间进行固定.Normallytwo20’containersarestandonone40’placewithaGAPof76mmbetweenthem,thisGAPiscalledISOGAP.BecauseofthesmallISOGAPther

8、eisnolashingpossible,thereforetheContainerswillbeconnectedbyTwistlocksonly,andifnecessarybyBridgeFittingsandLi