船体强力构件开孔及补强2精.docx

1、船体强力构件开孔及补强2精船体强力构件开孔及补强 Hull mightiness structure trepanning and reinforce前 言Introduction1 范围 Extension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 standard provision classify, trepanning and reinforce 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 this standard supply hull mightiness structure hole an

2、d reinforce when pipe system and cable through it. 2 2 船体强力构件上的区域分类Hull mightiness structure area and classify.2.1船体强力构件上的区域分类见表1 Look under table 1表1 区域分类 Table 1 Area classify 2.2 横向构件上的区域划分按图1Following picture area measure off of Transverse structure a. 强横梁 strong beam b. 横梁穿过纵桁a. strong beam b.

3、the beam through longitudinal 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O、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 45 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

4、 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3。Longitudinal mightiness structure area measure off. a. 纵骨 b. 纵通制水板 c. 纵通桁材Fig.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，取值按2.2.1。A part of rig on plane keel arrangement look following picture 4, decideTo 2.2.1 Fig.4 图4 平板

5、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5。 a. 支柱无肘板 support pillar not bracketb. 支柱两侧有肘板 two sides of stanchion have bracket c. 支柱一侧有肘板 a side of stanchion 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6。Area measure off about bracket, trust structure Picture 6. a. 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

6、接 b. 肘板连接a. circle arc connection b. floor plate connection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2.9 中心线桁材端部的区域划分见图9。Center 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

7、3. 开孔 trepanning3.1 开孔一般要求trepanning usually requirement3.1.1 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 trepanning, if have to trepanning we should considerMaterial, environment and strong load on it, we should decide local of the trepanning, size and bolster up of th

8、e 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10。 We should according table 1 decide A area and B area trepanning accept Value. Table 1 symbol and trepanning size Picture 10. Fig.10 symbol and trepanning size表1 开孔允许值Table 1 the trepanning accept value孔高b/型材高hHole high b/section bar high h构件名称及部位 Parts

9、 name and placeA 区域 PART A不补强 Not up货油舱 Bulk 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 others 居住区、露天甲板 AccommodationWeather deck 船中0.75L 外，中纵桁材 Center line girder0.330.33 0.5 0.4 0.50.1650.165 0.25 0.2 0.250.250.25 0.50.1250.125 0.25a 0.2bB 区域 PART B 不补强 Not upa 0.

10、1 b0.10.25 补强补强bolster Bolster up bolster Bolster up0.50.4 0.2各种隔板Solid floor, double bottom Insider girder,All kinds of clapboarda b300； b b600。0.50.5 0.66_ _3.1.3 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。When trepanning at the girder high direction trepanning high value amountshould less than table 1 rul

11、e3.1.4 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 length of trepanning less than 0.6 frame space (or 0.6 spacing of longitudinal ,trepanning should separate, cant same time compression near frame space ( or spacing of longitudinal inner. 3.1.5 开孔长度应小于开孔高度的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

12、度。Trepanning about length should less high twice, ensure 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25mmTrepanning should have glazed edge and good round angle the round angle Radius should 1/8 of trepanning high, and more than 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，

13、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 trepanning and distance cant fill rule, width 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 emergency, design director decide and consider special trepann

14、ing, director should make a suggestion.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 longitudinal girder more than 0.25h of the center hull and notice hull design part consider longitudinal stronger 3.2 开孔部位 position of hatch3.2.1 除下述范围外的梁上

15、腹板可以开孔，但是否需要加强，应视开孔大小而定。Except following extension of girder web plate can have trepanning, other Hatch area decide it about if need strengthen. 3.2.2 以下部位一般不允许开孔，否则应作等效加强。Following part not allow trepanning or else should do equivalence strengthen.3.2.2.1 强横梁端部一个纵骨间距。 spacing longitudinal of web be

16、am. 3.2.2.2 纵桁在横隔壁处一个肋距。Longitudinal girder on horizontal bulkhead frame space 3.2.2.3 强横梁在支柱处左右一个纵骨间距。Spacing of longitudinal that web beam around backup post 3.2.2.4 纵桁在支柱处前后一个肋距。Frame space at longitudinal girder all around. 3.2.2.5 桅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 spacin

17、g of longitudinal. 3.2.2.6 桅杆附近范围内的纵桁前后一个肋距。Near the mast a frame space of longitudinal girder. 3.2.2.7 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。 On ordinary beam and longitudinal 3.2.2.9 强横梁面板上绝对不准开孔。Absolutely impossible have trepanning on the web beam. 3.2.2.10 小构

18、件穿过的切口处，其切口前后的一倍切口长度范围内。 Small component get through incision, 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。Other consider bottom component and havent faceplate component trepanning.3

19、.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 component edge mix distance according 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 and component edge mix distance 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 and component edge mix distance 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

20、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 another side of plate, when same the web side have component ,you may reduce S at pudding time. Component hole high equal to prionodont hole high, S is not limit; b there are complementary plate instance: B B S3 B B B S3 S3B S4B S5B 4 补强 bolster up 4.1 在 A,B 区

21、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 sectional area of hole direction or flat plate bolster up. Or according to hole size, Use a part of web plate bolster up, the material should same as strength

22、Component. 4.2 4.2.1 图 11. The length of hole when inner twice high, hole high more allow number bolster up form following Picture11. 特殊孔的补强 bolster up of special hole 孔的长度在 2 倍孔的高度以内时,孔高超过允许值情况下的补强型式见 B S3 a.加补板 a. add complementary plate b.加面板 b. add faceplate c.加面板 c. add faceplate Fig.11 图 11 孔长

23、在允许范围内,孔高超过时的补强型式 4.2.2 孔长超过孔高 2 倍时,为了防止局部弯曲,在开孔上下补强,见图 12. The hole length is twice hole high, in order to prevent part bend, Bolster up at top and bottom of trepanning. Fig.12 图 12 孔长超过允许范围时的补强型式 4.2.3 孔高和孔长均超过允许范围时,防止局部弯曲,在开孔上下均要补强, 同时要对开孔损失的截面积进行补偿,在开孔前后端作补强,见图 13. More than allow extension hole

24、 length and hole high, prevent part bend bolster up at trepanning, bolster up at loss extension area, bolster up at trepanning top and bottom, following Picture 13. a. 补板及面板补强 a. complementary b. 角钢及加强筋补强 plate and faceplate bolster up b. angle bar and stiffener bolster up Fig.13 图 13 孔高和孔长均超过允许范围时的补强型式