太鋼第二煉鋼廠離線維修車間跑道梁更換工程吊車梁吊裝專項(xiàng)方案編制：審核：批準(zhǔn)：山西鋼建金結(jié)公司2012/7/20目錄1、方案編制目的12、方案編制依據(jù)13、工程概況14、施工人員、機(jī)械配置25、施工準(zhǔn)備26、吊裝工藝167、安全技術(shù)措施188、質(zhì)量控制措施18現(xiàn)場施工平面及吊裝機(jī)械站位布置圖(3)吊裝機(jī)械的選擇根據(jù)現(xiàn)場實(shí)際情況，鋼梁長24米，最重鋼梁40噸；最輕鋼梁為35噸，兩側(cè)鋼柱距離吊車中心位置約14米，吊裝高度24米，考慮采用300T汽車吊220噸主要技術(shù)參數(shù)如下：主臂:12.4-67.8米,主臂延伸臂:9.2-33米,最大臂桿長度:67+33=100米,最大起重能力/作業(yè)半徑:220噸/3米,整車長度:14.058米,下車長度:12.61米,外回轉(zhuǎn)半徑:11.05米，上車發(fā)動機(jī):170千瓦/231馬力,下車發(fā)動機(jī):390千瓦/530馬力,最大行駛速度:85千米/小時(shí)，驅(qū)動/轉(zhuǎn)向:10*8*8，輪胎:14.00(16.00/17.5/20.5)，最大爬坡率:>70%，最大配重:68.5噸。

13.317.621.926.230.534.839.143.447.75256.360

3

3.5200

139140

130

118

3

3.54

4.5131

120120

112116

110114

11195

93

76

4

4.55

6113

100104

92105

92104

9291

8875

6960

59

49

5

67

889

8082

7382

7382

7381

7264

6457

5748

4539

38.5

32

7

89

1072

6165

5965

5965

5965

5864

5956

5443

40.536.5

3531.5

30.525.5

25.4

20.5

9

1011

12

54

49.553

48.553

4854

49.551

4838

3633.5

32.529.8

28.524.9

24.520.2

19.917

16.811

1214

16

42

41

3540.5

3642.5

36.542

3631.5

28.328.9

2626

23.623

21.419.3

18.416.2

15.514

1618

20

30.5

32

28.331.5

27.931

27.225.8

23.523.4

2121.5

19.619.6

18.117.6

16.414.9

14.218

2022

24

25.1

24.7

22.124.1

21.421.8

20.419.2

17.617.9

16.416.7

15.415.4

14.413.7

13.222

2426

28

19.8

19.1

17.119.2

17.716.3

15.115.1

13.914.3

13.213.4

12.512.3

11.526

2830

32

16

13.316

14.514

13.212.8

11.812.2

11.311.7

10.910.8

10.130

3234

36

13.2

11.312.4

11.711.2

10.610.5

9.810.2

9.69.4

8.834

3638

40

11.2

10.210

9.49.1

8.79

8.48.3

7.738

4042

44

8.9

8.58.3

7.97.8

7.47.2

6.742

4446

48

7.5

7.16.9

6.56.3

5.946

4850

52

6.1

5.75.6

5.250

5254

56

4.9

4.654

56I

II

III

IV

V00/0/00/0/046/0/046/46/092/46/092/46/4692/46/4692/46/4692/4692100I

II

III

IV

V00/0/046/0/046/92/092/46/4646/46/4646/92/4692/92/4692/92/4692/9292100046/0/046/0/046/46/4646/46/4646/46/4646/46/4646/92/4692/92/9292/929210000/46/00/46/00/0/460/46/4646/46/4646/46/4646/46/9246/92/9292/929210000/0/460/46/920/0/460/0/460/46/9246/46/9246/46/9246/46/9246/9292100新舊鋼梁重量序號F列舊鋼梁重量F列新鋼梁重量G列舊梁重量G列新梁重量鋼柱分段重量17.1噸31.5噸24噸39噸8噸24件2件4件4件2根300噸汽車吊性能如下：吊繩，卸扣的選用及驗(yàn)算1）吊繩的選用根據(jù)鋼梁起吊最重重量，共設(shè)4個(gè)吊點(diǎn)，為確保吊裝安全，擬采用Φ43mm（6x19+1鋼絲繩容許拉力計(jì)算式：[Fg]＝注：[Fg]--鋼絲繩容許拉力（KN）Fg--鋼絲繩的鋼絲破斷拉力總和（KN）a--鋼絲繩之間不均勻系數(shù)，對6x19mm鋼絲繩，a取0.82K--安全系數(shù)，取6（無繞曲時(shí)）則：[Fg]＝(0.82×982)/6＝80.24/6＝134.21KN÷9.8KN/t＝13.69t本項(xiàng)目鋼梁吊裝選中Φ43mm（6x19），設(shè)4個(gè)吊點(diǎn)吊裝，則：13.69t4＝54.76t根據(jù)鋼絲繩與鋼梁的夾角為54.76×Sin＝54.76×0.866＝47.42t＞40t，滿足要求。鋼絲繩性能：繩6×19股（1+6+12）繩纖維芯片【用途】各種起重、提升和牽引設(shè)備直徑（mm）鋼絲總斷面積（mm2）鋼絲繩參考重量（kg/100m）鋼絲繩公稱抗拉強(qiáng)度（Mpa）鋼絲繩鋼絲14001550170018502000鋼絲破斷拉力總和（N）≥6.20.414.3213.5320000221002430036400286007.70.522.3721.1431300346003800041300447009.30.632.2230.45451004990054700596006440011.00.743.8541.44613006790074500811008770012.50.857.2754.1280100887009730010550011450014.00.972.4968.5010100011200012300013400014450015.51.089.4984.5712500013850015200016550017850017.01.1108.28102.315150016750018400020000021650018.51.2128.87121.818000019950021900023800025750020.01.3151.24142.9211500234000257000279500·30200021.51.4175.40165.824550027150029800032400035050023.01.5201.35190.328150031200034200037200040250024.51.6229.09216.532050035500038900042350045800026.01.7258.63244.436200040050043950047800051700028.01.8289.95274.040550044900049250053600057950031.02.0357.96338.350100055450060850066200071550034.02.2433.13409.360600067100073600080100037.02.4515.46487.172150079850087600095350040.02.6604.95571.78465009375001025000111500043.02.8701.60663.698200010850001190000129500046.03.0805.41761.111250001245000136500014900002）卸扣的選用T(8)級產(chǎn)品型號額定載荷WDdEPSL自重T-BW2-3/8217129.5239.536.552.50.13T-BW2.5-7/162.5191411271143620.21T-BW3.25-1/23.2520.5161330134870.50.3T-BW5-5/852720163817.560.5880.64T-BW7-3/473222194620.571.5102.51.09T-BW9.5-7/89.536.52722.55324.5841211.7T-BW12.5-112.5433025.560.527951392.5T-BW15-11/815463329.568.5321081543.79T-BW18-11/41851.536337635119170.54.89T-BW21-13/8215739368438133.5186.57.04T-BW30-11/23060.5423992411462018.35T-BW40-13/440735247106.55717824413.72T-BW50-25082.560531226119727520.33T-BW80-21/2801057269144.579.526734640.92S(6)級產(chǎn)品型號額定載荷WDdEPSL自重S-BW0.5-1/40.51286.515.56.52936.50.05S-BW0.75-5/160.7513.51081983144.50.1S-BW1-3/8117129.5239.536.552.50.13S-BW1.5-7/161.5191411271143620.21S-BW2-1/2220.5161330134870.50.3S-BW3.25-5/83.252720163817.560.5880.64S-BW4.75-3/44.753222194620.571.5102.51.09S-BW6.5-7/86.536.52722.55324.5841211.7S-BW8.5-18.5433025.560.527951392.5S-BW9.5-11/89.5463329.568.5321081543.79S-BW12-11/41251.536337635119170.54.89S-BW13.5-13/813.55739368438133.5186.57.04S-BW17-11/21760.5423992411462018.35S-BW25-13/425735247106.55717824413.72S-BW35-23582.560531226119727520.33S-BW55-21/2551057269144.579.526734640.92根據(jù)規(guī)格及構(gòu)件重量采用25噸卡扣兩個(gè)進(jìn)行吊裝類別：鋼結(jié)構(gòu)吊裝專項(xiàng)方案第11頁共19頁吊裝示意：吊耳受力計(jì)算公式為：鋼板屈服強(qiáng)度*t*δ。乘以6倍安全系數(shù)吊耳材質(zhì)選用Q345，根據(jù)吊耳手里計(jì)算公式，345*30*60*0.6，每個(gè)吊耳可承受37.3噸重量，符合吊裝要求。六、吊裝工藝1）吊裝作業(yè)a：吊車按計(jì)算選用配置的要求和主吊臂臂長，主配重總量，將主吊車安裝好，吊索按吊裝要求掛設(shè)好；b：正式起吊前，檢查吊車站位，接桿是否符合要求，支腿的墊鐵是否牢固，起重索具穿繞掛設(shè)和工具安裝是否符合規(guī)范要求等，全部檢查無誤，報(bào)吊裝總指揮批準(zhǔn)后進(jìn)行試吊；c：試吊：拆除臨時(shí)固定索具，指揮吊車緩將鋼結(jié)構(gòu)吊離支撐約200mm，停車檢查吊車的受力情況，吊車支腿處地基沉降情況，工索具受力情況，起重指揮信號聯(lián)系是否暢通無誤，如無異常情況，將鋼結(jié)構(gòu)緩慢落回原位準(zhǔn)備正式吊裝；d：正式起吊：指揮吊車緩慢起吊，鋼結(jié)構(gòu)離支撐物約200mm，停車按試吊要求檢查各部位，如無異常，開始正式起吊，在吊裝過程中，隨時(shí)檢查吊車配合作業(yè)過程中吊車滑輪組是否垂直受力，吊車支腿的墊設(shè)及地基沉降情況等；e：吊車緩慢將鋼結(jié)構(gòu)就位，就位時(shí)應(yīng)密切關(guān)注吊車掉臂是否與鋼結(jié)構(gòu)抗桿，檢查確認(rèn)操作半徑f：確認(rèn)鋼結(jié)構(gòu)安裝符合要求后，摘除吊索，吊車轉(zhuǎn)場，吊裝結(jié)束。G列吊車梁為雙梁，吊裝難度較高，吊裝數(shù)據(jù)如下：根據(jù)300噸汽車吊性能，出桿32.3米，水平距離為14米是可以吊裝56噸，鋼梁重量為4