船體強度與結構設計計算書

1、標記數量務的標號日期編制周哈班級2班校對學號3009205278標檢審核審定日期2012.8.251500 m3耙吸式挖泥船總縱強度計算書基本設計文件編號以面旗1,#18頁第1頁天津大學建工學院船舶工程系1 .計算說明 32 .剪力和彎矩計算 42.1 計算重量分布和浮力分布 42.2 計算靜水剪力和靜水彎矩 52.2.1 分別繪制站間載荷、剪力和彎矩圖 72.3 計算總縱彎矩值和剪力值 83總縱彎曲應力、受壓構件的穩(wěn)定性校核及折減計算 113.1臨界應力失穩(wěn)計算 134結論 141計算說明本計算書是1500 m3耙吸式挖泥船總強度計算書，涉及到挖泥船的靜水彎矩、剪力，波浪附加彎矩、 附加剪力

2、，計算總彎曲應力等等，以校核是否滿足設計要求。這里我們只計算滿載到港的情況。具體計算 內容如下：1.1 計算內容(1) 靜水彎矩、剪力(2) 波浪附加彎矩、附加剪力(3) 剪力、彎矩合成(4) 計算總彎曲應力、受壓構件的穩(wěn)定性校核及折減計算(5) 折減后的高次總彎曲應力計算(6) 計算結果分析及結論(7) 計算工況：滿載出港(8) 計算狀態(tài)：中拱和中垂1.2 主要技術參數船長：78米；滿載排水量：5020噸；平均吃水：5.4米；站距：4L=3.9米，波高：4米；重心在腫前：xg =0.813米；艄吃水：Tf=5.77米；尾吃水：Ta =5.23米。主尺度：船長：78米，船寬：14.5米，型深：

3、6.3米，設af吃水5.1米，肋距：0.6米，強框架間距： 1.8 米。3海水密度：10.055KN/m船體材料：計算剖面的所有構件均采用低碳鋼，屈服極限b Y=235.2N/mm2許用應力：1 .總縱彎曲許用應力：b=0.5 6 Y2 .總縱彎曲與板架局部彎曲合成應力的許用應力：在板架跨中 ：(T 1+ (T 2=0.65 6 丫在橫艙壁處：(T 1+ (T 2= (T Y1.3靜水彎矩計算資料(1)站間重量(噸)表(1-1)01122334455667788991057. 60562.71681.581183.623177.206202.028274.463472.659454.59845

4、6.4481011111212131314141515161617171818191920418.771408.105405.117401.806435.472166.794147.99383.40174.61954.8592、(2)靜水平衡狀態(tài)各站橫剖面浸水面積( m ) 表(1-2)0123456789101023415666727577777777111213141516171819207777787879786851252剪力和彎矩計算2.1 計算重量分布和浮力分布根據表（1-1 ）繪制站間重量分布曲線:站間重量90807060504030|: t2010J I收0123456789

5、10 11 12 13 14 15 16 17 18 19 20圖2-1站間重量分布梯形圖依據表（1-2 ）計算靜水浮力:表（2-1 ）靜水浮力計算理論站間浮力35000 .:1：1：1：rr-：r：-r-：-r-:0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20圖2-2浮力分布曲線圖2.2計算靜水剪力和靜水彎矩根據表格（1-1 ）和表格（2-1 ）繪制靜水剪力和靜水彎矩的計算表格如下：表（2-2）靜水計算站理論理論理論站理論站第（5）第（6）對第剪力(6)*1對第彎矩理號站間站間間浮力間載荷列自列積列值L/2(10)值論重量(KN)(K

6、N)上至分不封列的站（噸）(KN(3)-下和閉的不封號(4)修正閉值值的修正(1)(2)(3)(4)(5)(6)(8)(9)(10)(11)(12)0000-157.60565.1647.03-81.934-81.9-81.9-7.28-74.6-159.-128.-31.6150592523423429854437721531921-262.71615.21254.8-639.62-721.-885.-14.5-706.-1726-256.-1470264464004554423797975.57305.272-381.58800.31901.9-1101.5-1823-3430-21.8-

7、1801-6688-384.-6304311003259364.15.12696.28.74458.293-4183.61801.2392.0-590.74-2413-7667-29.1-2384-1495-512.-1443423341845287.89.16594.731618.44-5177.2061738.3912705.8005-967.40964-3381.3-13462.4-36.4493-3344.85-26251.6-640.763-25610.855-6202.01981.2882.2-900.37-4281-2112-43.7-4237-4119-768.-4042628

8、8956575107.675.3391.934.49155.56-7274.42692.2980.3-287.81-4569-2997-51.0-4518-5845 1-897.-575576348202997.496.529.464.20687.17-8472.64636.3019.51617.26-2952-3749-58.3-2893-7312-1025-7209859785165829.228.2188.91.5.226.38-9454.54459.3019.51440.08-1512-4196-65.6-1446-8182-1153-8067998606165988.132.6087

9、.527.373.69-104564477.13019.51458.23-53.8-4352-72.819.00 -8488 1-1281-83591.4487551658389498.69853620.7.539.2010-418.74108.3019.51088.621034.-4254-80.11114.-8296 1-1409-8155111711441657017327.8884928.1.688.4111-408.14003.3019.5983.9932018.-3949-87.42106.-7701-1537-754711205510165557264.37822043.9.83

10、6212-405.13974.3039.1935.0742953.-3452-94.73048.-6731-1665-65651131719823750281.86815687.4.981.5313-401.83941.3058.7882.9853836.-2773-102.3938.-5407-1794-52281140671731867861.20588435.8.141.7414-435.44271.3078.31193.645030.-1886-109.5139.-3678-1922-348611572980382520742843487754.7.292.5515-166.71636

11、.3078.3-1442.03588.-1024-116.3704.-1997-2050-179211694249382589113395.26389768.1.447.7616-147.91451.2862.6-1410.82177.-4479-123.2301.-8734-2178-6556117938115854717491.37927419.78.59.19717-83.40818.12333.2-1515.0662.3-1639-131.793.6-3197-2306-890.11816462759894924.49217097.7526818-74.61732.01490.1-75

12、8.13-95.7-1072-138.42.76-2092-2434342.811991251861462.84507095.04.9527919-54.85538.1588.21-50.050-145.-1314-145.0-2563-2563-0.002209677571797.39797.05.053890由表（2-2）可知：滿載重量：W=49246.2KN 重心坐標xn =0.813米 g艄吃水：Tf =5.77米；尾吃水：Ta =5.23米最大剪力值N max= 滿足精度要求。2.2.1分別繪制站間載荷、剪力和彎矩圖如下站間載荷分布2000150010005000-500-1000-

13、1500-20000-998731,2141-3151-41站間載荷分布圖2-3站間載荷分布圖靜水載荷剪力圖2-4靜水載荷剪力圖靜水彎矩圖2.3 計算總縱彎矩值和剪力值：根據表格（1-2 ）和（2-2 ）進行總縱彎矩值和剪力值的計算：表（2-3）波浪載荷（2-3 )合成剪'力及彎;矩計算理波面靜橫對對靜不修波不修靜靜合合論下橫水剖(4(5波封正浪封正水水成成站剖面下面）列）列浪閉后彎閉后男彎男彎號浸水橫積的的男調的矩修的力矩力矩面積剖浸積積力整男正(m)面水分分力值浸面水積面增積值(3)-(2)(2)(3(4(5(6(7(8(9(1(1(1(1(1(1(11)0)1)2)3)4)5)6

14、)023.210-13-13-13-25-500-50.2.2.28.84.64.6169191142.423-19-45-72-89-10-88-27-12-15-74-31-96-15.4.8.28.0.307.760.47.13.64.612.344.1236085143643925398259.4241-18.42-83.62-201.62-1639.56-20 .6072-1618.95-7708.77-2494.28-5214.49-706.975-1470.27-2325.93-6684.76372.1756-16.17-118.21-403.45-2317.77-30.9108

15、-2286.86-15425 .6-3741.42-11684 .1-1801.28-6304.29-4088.14-17988 .4477.0166-11.01-145.39-667.05-2850.7-41.2144-2809.48-25504 .1-4988.56-20515 .5-2384.73-14438 .4-5194.22-34953 .9577.0972-5.09-161.49-973.93-3166.37-51 .518-3114.86-37237 .4-6235.7-31001 .7-3344.85-25610 .8-6459.71-56612 .5670.14754.86

16、-161.72-1297.14-3170.88-61.8216-3109.06-49595-7482.84-42112 .2-4237.93-40425 .5-7347-82537 .7762.067714.94-141.92-1600.78-2782.66-72.1252-2710.54-61204 .4-8729.98-52474 .5-4518.46-57557 .1-7229-110032856.377720.63-106.35-1849.05-2085.23-82.4288-2002.8-70696 .8-9977.12-60719 .7-2893.9-72096 .3-4896.7

17、1-132816951.427725.58-60.14-2015.54-1179.18-92.7324-1086.45-77062 .4-11224.3-65838 .2-1446.52-80673 .6-2532.97-1465121050.147726.86-7.7-2083.38-150.976-103.036-47.9398-79656 .2-12471 .4-67184 .819.00362-83599 .2-28.9362-1507841151.117725.8945.05-2046.03883 .3066-113.34996.6462-78228 .2-13718 .5-6450

18、9 .71114.92-81558 .42111.567-1460681258.347718.6689.6-1911.381756.81-123.6431880.453-73080-14965 .7-58114 .32106.204-754763986.657-13359 01367.437810.57118.83-1702.952329.93-133.9472463.876-65110 .8-16212 .8-488983048.568-65651 .55512.444-1145491477.67780.33129.73-1454.392543.649-144.252687.899-5560

19、7 .3-17460-38147 .43938.843-52281 .76626.742-90429 .11584.7279-5.72124 .34-1200.322437.965-154.5542592.519-45893 .2-18707 .1-27186 .15139.775-34862 .57732.295-62048 .61691.8778-13.87104.75-971.232053.859-164.8582218.717-37134 .1-19954 .2-17179 .93704.976-17927 .75923.693-35107 .61785.668-17173.-7914

20、3-17161-30-21-91230-65391-153.63253.26.25.11.332820127.1.456.2.86833316192.5.408191911.31870.651-1936.-68706-18891-26-22-37793-89168-45.6023.9.255.4.7115044802.600.25.392.6316579.6.5197628361938.325-133.0-6459.-19255-24-23-9642.342298-618.3844.96065.7.376576951.5760.85.138.6046844.2.73595275483205.1

21、75-0.-10-65-20-20-0.-24-24-0.0-0.-0.-0.17.512.36.06.0000942942004003000008772722.8.82889217根據上表分布繪制合成剪力圖和合成彎矩圖如下：合成剪力圖2-6合成剪力圖合成彎矩合成彎矩由表格（2-3）可以得到最大彎矩值和最大剪力值：最大剪力值：Nma）=7732.295 KN最大彎矩值：Mmak-150784 KN.m3總縱彎曲應力、受壓構件的穩(wěn)定性校核及折減計算峪七軻面打歪料件總計算剖面選在彎矩最大的船中66.5號肋位，參與總縱彎曲的構件如圖3-1所示:圖3-1 66.5號肋位剖面圖各個構件的名稱、尺寸、面積

22、及其形心到到參考軸的距離如表3-1所示。參考軸選在船底基線。表3-1參與總彎曲構件構件 編R構件名稱構件尺寸(mm)構件剖 面積(一 2、cm )距參考 軸距離 (m)靜力矩(cm2* m)慣性矩(cm2*m2 )構件自身慣性 矩(cm2*m2 )矩中和 軸距離 (m)總縱彎 曲應力2(N/mm )1平板龍骨 18x1290232.22.0000.0063-3.2684.592箱型內龍 骨I 12 M 500,14父20044. 00.3314.524.790.92-2.9376.033箱型底縱 骨L100x60x1015.00.060.930.060.013-3.283.044箱型上縱 梁1

23、10 M 300 "L12x13022.82.659.28154.120.017-0.6617.125箱型上 下弧板600 M 201023.03069.183.06-0.266.756箱型縱骨L100 X60X10150.69.35.580.013-2.6669.02151.218.622.320.013-2.0653.45302.2066145,20.025-1.0627.517箱型豎板一16父15002400.7518013545-2.5165.138箱型斜板-16x19002582.2567.61248.7277.615-1.0627.509船底板一 16M160025600

24、00.006-3.2684.5910觥 板14x20002800.6168100.893.34-2.6669.0211側 板16 / 38006083.051854.45655.92731.63-0.215.4512頂歹U板16x15002405.6513567661.4452.39-62.0113船底縱骨L180 M110乂12父31010000.297-3.2684.59314觥縱骨L180 M110M1233.70.413.485.390.09-2.8674.2115舷側縱骨L100 M100乂12父367.71.6108.32173.310.057-1.6643.0816舷側縱骨L14

25、0 M90M10L140 M90父10父322.23.066.6199.80.015-0.266.7566.64.4293.041289.30.0451.14-29.5817甲板邊板-14 M15002106.313238334.90.0033.04-78.8818甲板板-11 M1400一 11M 43501546.5109270980.0033.24-84.07478.56.52827.518378.0.0043.24-84.0819甲板縱行1 12X800 x214 M 2002486.0148889280.532.74-71.120甲板縱骨L160 M100M10 x8202.46.01214.47286.40.442.74-71.121泥倉縱骨L140 x90x10 父4L140 M90m10m388.82.0177.6355.20.06-1.2632.7066.65.033316650.041.74-45.1522泥倉豎壁一 14x40005604.3240810354.746.671.04-26.9823泥倉斜壁-16x21003361.5504756123.48-1.7645.6724泥倉豎壁一 16 x550880.2723.766.41