船体强力构件开孔及补强2精

1、船体强力构件开孔及补强 Hull might in ess structure trepa nning and rei nforceIn troduct ion1 范围 Exte nsion本标准规定了船体强力构件上的区域分类，开孔及补强About this sta ndard provisi on classify, trepa nning and rei nforce of hull structure.本标准适用于管系、电缆穿过船体强力构件时的开孔及补强。About thissta ndard supply hull might in ess structure hole and rei

2、n force whe n pipe system and cable through it. 2 2船体强力构件上的区域分类Hull might in ess structure area and classify.2.1船体强力构件上的区域分类见表 1 Look un der table 1表 1 区域分类 Table 1 Area classify区域(area)符号(symbol)xil义(definition)A区域弱应力区PART AFaintish stressB区域较强应力区PART BUpper stressC区域强应力区PART CGreat wtress2.2横向构件上的

3、区域划分按图1Follow ing picture area measure off of Tran sverse structurea.强横梁stro ng beam b.横梁穿过纵桁a. strong beam b. the beam through Ion gitud inal girderFig.1图1横向构件上的区域划分2.2.1决定B区域方法见图2。Decide area B method following picture 2. a.定 0、A 点；fix O ,A point.b. / OAB不大于45度时取C点，/ OAB大于45度时取B点；/ OAB less than 4

4、5 degree choice point C,/ OAB more 45 degree choice point B. c按/ OBE 或/ OCE 等于 45 度来定 E 或 E'' according / OBE or / OCE equal to 45 degree we decide E or E '.图 2 决定 B 区域方法 Fig.2 Decide area B method2.3纵强度构件的区域划分见图3Lon gitud inal mighti ness structure area measure off.a.纵骨b.纵通制水板c.纵通桁材Fig.

5、3图3纵强度构件的区域划分2.4平板龙骨上部肋板的区域划分见图4, a取值按2.2.1。a decideA part of rig on pla ne keel arran geme nt look followi ng picture 4,To 2.2.1LFig.4图4平板龙骨上部肋板的区域划分2.5支柱端部构件的区域划分见图5Aiva measure off about top of strut stnicturc Picture 5.a. 支柱无肘板 support pillar not bracketb. 支柱两侧有肘板 two sides of stanchion have bra

6、cket c支柱一侧有肘板 a sideof sta nchi on have bracketFig.5图5支柱端部构件的区域划分2.6防挠材、肘板构件的区域划分见图 6Area measure off about bracket, trust structure Picture 6.If二肘板折边宽住防挠板折边宽f二防挠板折边宽£=肘板折边宽late ineasLue off Picture?Q-兀 Qh Ia.防挠材b.肘板Fig.6图6防挠材、肘板构件的区域划分2.7 a.圆弧连接b.肘板连接a. circle arc conn ecti on b. floor plate c

7、onn ecti on图7肋板端部的区域划分Fig7 Area division of ends of brackets2.8隔离舱内腹板的区域划分见图8。In the cofferdam web plate area measure off Picture8.Fig.8图8隔离舱内腹板的区域划分u V.32.9中心线桁材端部的区域划分见图9Cen ter line top of the girder area measure off Picture 9.Fig9图9中心线桁材端部的区域划分3.开孑 L trepa nning3.1 开孔一般要求 trepanning usually requ

8、irement3.1.1 C区域应避免开孔，如必须开孔时，应对材料性质、周围状况、负荷大 小作充分考虑，以决定开孔位置、尺寸和补强方法。C area should avoid trepa nnin g, if have to trepa nning we should con siderMaterial, en vir onment and strong load on it, we should decide local of thetrepa nning, size and bolster up of the method.3.1.2 A区域及B区域开孔允许值按表1,表1中开孔尺寸符号见图

9、10。Weshould accord ing table 1 decide A area and B area trepa nning accept Value. Table 1 symbol and trepa nning size Picture 10.Fig.10 symbol and trepa nning size表1开孔允许值Table 1 the trepa nning accept value孔高b/型材高hHole high b/sect ion bar high h构件名称及部位 Parts name and placeA区域PART A不补强Not up货油舱 Bulk

10、oil space桁材货物舱、机舱、除货油舱以外的其他舱Cargo tank. Engine room, Except bulk oil Space other居住区、露天甲板 Accommodati onWeather deck船中 0.75L 夕卜，中纵桁材 Center line girder0.33>0.33 <0.50.4 <0.50.165>0.165 <0.2>0.2 <0.250.25> 0.25 < 0.50.125> 0.125 < 0.25a 0.2>bB区域PART B不补强Not upa >

11、 0.1 b0.1< 0.2补强补强bolster Bolster up bolster Bolster up< 0.50.4 0.2各种隔板Solid floor, double bottom In sider girder,All kinds of clapboarda b < 300 b b < 6000.5> 0.5 < 0.663.1.3桁材高度方向开数个孔时，开孔高度值之和应小于表1中的允许开孔高度值。Whe n trepa nning at the girder high directi on trepa nning high value am

12、ountshould less tha n table 1 rule3.1.4开孔总长度不能超过0.6肋距（或0.6纵骨间距），开孔应分散，不能同 时密集在邻近的肋距（或纵骨间距）内。All the len gth of trepa nning less tha n 0.6 frame space （or 0.6 spaci ng ofIon gitudi nal ,trepa nning should separate, canme comtpreBsaon n ear frame space（or spaci ng of Ion gitudi nal inner. 3.1.5开孔长度应小于

13、开孔高度的 2倍，以保证在相 同开孔面积情况下减少沿船宽方向的开孔宽度。Trepa nning about len gth should less high twice, en sure reduce width Along width of the boat.3.1.6开孔应有光滑的边缘和良好的圆角，圆角的半径应为孔高的1/8,且不小于25mmTrepa nning should have glazed edge and good round an gle the round an gle Radius should 1/8 of trepa nning high, and more tha

14、 n 25mm.3.1.7当梁上有密集的小开孔且间距又不满足对开孔间距的要求时，则开孔的 宽度和长度的计算值应以全部开孔的最大外轮廓尺寸作为开孔计算的宽度和长度。When girder have small trepa nning and dista nee can fill rule, wid' andHigh calculation should according to max width and high of figure size 3.1.8如遇 特殊开孔情况，需设计部主管人员决定，需作特殊考虑的开孔亦由设计部主管人员 提出。If have emerge ncy, desi

15、g n director decide and con sider special trepa nning, director should make a suggesti on.3.1.9主船体部分的强力甲板，船中0.5L连续纵桁上开孔高大于0.25h时，应 通知设计部船体室，以考虑开孔对总纵强度的影响是否允许，以及开孔的特殊要求 等。Strong deck of hull when Iongitudinal girder more than 0.25h of the center hull and no tice hull desig n part con sider Ion gitud

16、in al stron ger 3.2开孔部位 positi on of hatch3.2.1除下述范围外的梁上腹板可以开孔，但是否需要加强，应视开孔大小而Except follow ing exte nsion of girder web plate can have trepa nning, other Hatch area decide it about if need stre ngthe n. 32以下部位一般不允许开孔，否则应作等效 加强。Follow ing part not allow trepa nning or else should do equivale nee str

17、e ngthe n.3.2.2.1 强横梁端部一个纵骨间距。spaci ng Ion gitudi nal of web beam. 322.2纵桁在横隔壁处一个肋距。Lon gitud inal girder on horiz on tal bulkhead frame space 322.3强横梁在支柱处左 右一个纵骨间距。Spaci ng of Ion gitud inal that web beam around backup post 3.2.2.纵桁在支柱处前 后一个肋距。Frame space at lo ngitudi nal girder all arou nd. 3.2.2

18、.5S 杆附近范围内的强横梁左 右一个纵骨间距。Near the mast web beam all round of a spac ing of Ion gitud in al. 3.2.2.66 杆附近范 围内的纵桁前后一个肋距。Near the mast a frame space of Ion gitud inal girder. 3.2.2.上层建筑端壁下的强梁 腹板上。Superstructure in end of girder web plate 3.2.2.8普 通横梁和纵骨上。Onordi nary beam and Ion gitudi nal 3.2.2.9强横梁面板上

19、绝对不准开孔。Absolutely impossible have trepa nning on the web beam. 3.2.2.1小 构件穿过的切 口处，其切口前后的一倍切口长度范围内。Small comp onent get through in cisi on,around incision extension 3.2.2.11 肘板端部相邻 200mm 范围内。Near bracket plate 200mm.3.2.2.12 构件对接处相邻 200mm 范围内。Component join 20mm extension.3.2.2.13底部构件和不带面板的构件开孔另做考虑Ot

20、her con sider bottom comp onent and have n't faceplate component trepanning.3.3孔与孔或孔与构件边线的最小距离按表 2。Hole and hole or hole and comp onent edge mix dista nee accord ing to Table 2.表2孔与孔或孔与构件边线的最小距离 Table 2 hole and hole or hole andcomp onent edge mix dista nee开孔形式Trepanning Forms备注attentionA区域A are

21、aB区域B areaa,亂、孔与孔（hoit山h 注e and hole)* I r q tj(dl+d2)/2dl+d2一般在扎的周兩 加工等厚的腹板或扁 钢框时,可以减少S 值，减少值为腹板或扁b. b> 扎(hole and plate)ftc臥S乳与幽蝦扎再WWSA(hol« ond scollop hole, prionodonthole)yEd+R)/2d+Kd、d、孔与切M(holc and incisionBX! ?W+BV2dtB1/2 S.少F标准$值的1/2.Generally* aroundthe hole add webplate to it 

22、7; it willbecoaesteelreduceflati you marworth.reduce number is webplate fora and 1/2width of flnt bonebut lesL： st andar d表2 （续）孔与孔或孔与构件边线的最小距离Table 2 hole and hole or hole andcomp onent edge mix dista neeb、bx 孔与询板 thole and plate)ihife板=£40%h钢框宽度的1/乙但得 少于标准S值的I/NGenerally, around the hole add

23、webs s孔与扇型孔、锯齿型孔(hole and scallop hole, prionodonthole)y(d+R) /2d+Rplate to it , it willbecomeflatsteel , you mayreduce S worth,a在板的另一侧，腹板的同一面内有构件时，可以适当酌情减少S值.这些构件的 开孔的高度与锯齿型孔同等高度时,S值不受限制；b有补板的设计情况：a an other side of plate, whe n same the web side have comp onen t ,you may reduce S at pudd ing time.

24、 Component hole high equal to prionodont hole high, S is not limit; b there are complementary plate instanee: B B S3 B B B S3 S3> B S补S5steB up 4.1在A,B区域里允许开孔的情况下，应用不小于开孔宽度方向截面积1/4的腹板或扁 钢框补强，也可根据开孔的尺寸，用局部加高腹板高度来补强，其补强板及型材的材质 应与强力构件的材质相同.In A,B area allow hatch ,we should used less than 1/4 secti onal area of hole direct ion or flat plate bolster up. Or accord ing to hole size, Use a part of web plate bolster up, the material should same as stre ngth Comp onent. 4.2 4.2.1 图 11. The len gth of hole whe n inner twice high, ho