Автор: Пользователь скрыл имя, 25 Марта 2013 в 21:29, курсовая работа
В результате выполнения данного курсового проекта были закреплены знания по курсу строительной механики, освоена методика расчёта крановых ферм по методу предельных состояний, а также приобретены необходимые навыки инженерных расчётов металлоконструкций, конструирования и компоновки узлов и панелей ферм.
При выполнении курсовой работы рассчитываются и проектируются крановые фермы существующих подъёмно-транспорных и строительно-дорожных машин, производится их анализ, определяются пути улучшения и усовершенствования с учетом современных тенденций развития.
Введение 3
Выбор геометрических параметров фермы 4
Исследование фермы на геометрическую неизменяемость 4
Аналитическое определение усилий в стержнях заданной панели 4
Построение линий влияния реакций опор и стержней заданной
панели 6
Определение расчетных усилий в стержнях заданной панели от действия постоянной нагрузки и системы связанных между собой
подвижных сил 9
Подбор сечений стержней фермы 13
Расчет числа заклепок 17
Расчет длины сварных швов 19
Построение грузовой диаграммы Максвелла – Кремоны при невыгодном нагружении фермы подвижной нагрузкой, а также единичных диаграмм 21
Построение линии прогибов 23
Заключение 24
Список использованных источников 25
Приложения 26
A | B | C | D | E | F | G | H | |
---|---|---|---|---|---|---|---|---|
1 | l, м | A, см2 | Fn1 | Fn.n, кН | Fn1*Fn.n | Fn1*Fn.n*l | Fn1*Fn.n*l/A | |
2 | O1-2 | 3 | 27.6 | 0.769 | 211.49 | 162.63581 | 487.90743 | 17.67781 |
3 | O2-3 | 3 | 27.6 | 1.538 | 422.98 | 650.54324 | 1951.62972 | 70.71122 |
4 | O3-4 | 3 | 27.6 | 2.307 | 634.47 | 1463.72229 | 4391.16687 | 159.10025 |
5 | O4-5 | 3 | 27.6 | 3.076 | 845.96 | 2602.17296 | 7806.51888 | 282.84489 |
6 | O5-6 | 3 | 27.6 | 3.076 | 845.96 | 2602.17296 | 7806.51888 | 282.84489 |
7 | O6-7 | 3 | 27.6 | 2.307 | 749.81 | 1729.81167 | 5189.43501 | 188.02301 |
8 | O7-8 | 3 | 27.6 | 1.538 | 499.87 | 768.80006 | 2306.40018 | 83.56522 |
9 | O8-9 | 3 | 27.6 | 0.769 | 249.94 | 192.20386 | 576.61158 | 20.89172 |
10 | UB-10 | 3 | 20.33 | 0 | 0 | 0 | 0 | 0 |
11 | U10-11 | 3 | 20.33 | 0.769 | 249.94 | 192.20386 | 576.61158 | 28.36260 |
12 | U11-12 | 3 | 20.33 | 1.538 | 499.87 | 768.80006 | 2306.40018 | 113.44812 |
13 | U12-13 | 3 | 20.33 | 2.307 | 749.81 | 1729.81167 | 5189.43501 | 255.25996 |
14 | U13-14 | 3 | 20.33 | 2.307 | 634.47 | 1463.72229 | 4391.16687 | 215.99444 |
15 | U14-15 | 3 | 20.33 | 1.538 | 422.98 | 650.54324 | 1951.62972 | 95.99753 |
16 | U15-16 | 3 | 20.33 | 0.769 | 211.49 | 162.63581 | 487.90743 | 23.99938 |
17 | U16-A | 3 | 20.33 | 0 | 0 | 0 | 0 | 0 |
18 | D1-16 | 3.606 | 6.13 | 0.917 | 252.25 | 231.31325 | 834.11558 | 136.07106 |
19 | D2-15 | 3.606 | 6.13 | 0.917 | 252.25 | 231.31325 | 834.11558 | 136.07106 |
20 | D3-14 | 3.606 | 6.13 | 0.917 | 252.25 | 231.31325 | 834.11558 | 136.07106 |
21 | D4-13 | 3.606 | 6.13 | 0.917 | 252.25 | 231.31325 | 834.11558 | 136.07106 |
22 | D6-13 | 3.606 | 6.13 | 0.917 | 114.66 | 105.14322 | 379.14645 | 61.85097 |
23 | D7-12 | 3.606 | 6.13 | 0.917 | 298.12 | 273.37604 | 985.79400 | 160.81468 |
24 | D8-11 | 3.606 | 6.13 | 0.917 | 298.12 | 273.37604 | 985.79400 | 160.81468 |
25 | D9-10 | 3.606 | 6.13 | 0.917 | 298.12 | 273.37604 | 985.79400 | 160.81468 |
26 | V1-A | 2 | 8.15 | 0.5 | 137.5 | 68.75 | 137.5 | 16.87117 |
27 | V2-16 | 2 | 8.15 | 0.5 | 137.5 | 68.75 | 137.5 | 16.87117 |
28 | V3-15 | 2 | 8.15 | 0.5 | 137.5 | 68.75 | 137.5 | 16.87117 |
29 | V4-14 | 2 | 8.15 | 0.5 | 137.5 | 68.75 | 137.5 | 16.87117 |
30 | V5-13 | 2 | 8.15 | 1 | 200 | 200 | 400 | 49.07975 |
31 | V6-12 | 2 | 8.15 | 0.5 | 162.5 | 81.25 | 162.5 | 19.93865 |
32 | V7-11 | 2 | 8.15 | 0.5 | 162.5 | 81.25 | 162.5 | 19.93865 |
33 | V8-10 | 2 | 8.15 | 0.5 | 162.5 | 81.25 | 162.5 | 19.93865 |
34 | V9-B | 2 | 8.15 | 0.5 | 162.5 | 81.25 | 162.5 | 19.93865 |
35 | прогиб, мм | 0.14874 | ||||||
36 |
A | B | C | D | E | F | G | H | |
---|---|---|---|---|---|---|---|---|
1 | ||||||||
2 | l, м | A, см2 | Fn1 | Fn.n, кН | Fn1*Fn.n | Fn1*Fn.n*l | Fn1*Fn.n*l/A | |
3 | O1-2 | 3 | 24.3 | 0.5 | 97.5 | 48.75 | 146.25 | 6.01852 |
4 | O2-3 | 3 | 24.3 | 1 | 195 | 195 | 585 | 24.07407 |
5 | O3-4 | 3 | 24.3 | 1.5 | 292.5 | 438.75 | 1316.25 | 54.16667 |
6 | O4-5 | 3 | 24.3 | 2 | 390 | 780 | 2340 | 96.29630 |
7 | O5-6 | 3 | 24.3 | 2.5 | 487.5 | 1218.75 | 3656.25 | 150.46296 |
8 | O6-7 | 3 | 24.3 | 2.5 | 487.5 | 1218.75 | 3656.25 | 150.46296 |
9 | O7-8 | 3 | 24.3 | 2 | 510 | 1020 | 3060 | 125.92593 |
10 | O8-9 | 3 | 24.3 | 1.5 | 382.5 | 573.75 | 1721.25 | 70.83333 |
11 | O9-10 | 3 | 24.3 | 1 | 255 | 255 | 765 | 31.48148 |
12 | O10-11 | 3 | 24.3 | 0.5 | 127.5 | 63.75 | 191.25 | 7.87037 |
13 | U12-17 | 3 | 17.2 | 0 | 0 | 0 | 0 | 0 |
14 | U17-18 | 3 | 17.2 | 0.5 | 127.5 | 63.75 | 191.25 | 11.11919 |
15 | U18-19 | 3 | 17.2 | 1 | 255 | 255 | 765 | 44.47674 |
16 | U19-20 | 3 | 17.2 | 1.5 | 382.5 | 573.75 | 1721.25 | 100.07267 |
17 | U20-21 | 3 | 17.2 | 2 | 510 | 1020 | 3060 | 177.90698 |
18 | U21-22 | 3 | 17.2 | 2 | 390 | 780 | 2340 | 136.04651 |
19 | U22-23 | 3 | 17.2 | 1.5 | 292.5 | 438.75 | 1316.25 | 76.52616 |
20 | U23-24 | 3 | 17.2 | 1 | 195 | 195 | 585 | 34.01163 |
21 | U24-25 | 3 | 17.2 | 0.5 | 97.5 | 48.75 | 146.25 | 8.50291 |
22 | U25-30 | 3 | 17.2 | 0 | 0 | 0 | 0 | 0 |
23 | D1-25 | 4.243 | 6.86 | 0.707 | 137.886 | 97.48540 | 413.63056 | 60.29600 |
24 | D2-24 | 4.243 | 6.86 | 0.707 | 137.886 | 97.48540 | 413.63056 | 60.29600 |
25 | D3-23 | 4.243 | 6.86 | 0.707 | 137.886 | 97.48540 | 413.63056 | 60.29600 |
26 | D4-22 | 4.243 | 6.86 | 0.707 | 137.886 | 97.48540 | 413.63056 | 60.29600 |
27 | D5-21 | 4.243 | 6.86 | 0.707 | 137.886 | 97.48540 | 413.63056 | 60.29600 |
28 | D7-21 | 4.243 | 6.86 | 0.707 | 31.82 | 22.49674 | 95.45367 | 13.91453 |
29 | D8-20 | 4.243 | 6.86 | 0.707 | 180.312 | 127.48058 | 540.90012 | 78.84841 |
30 | D9-19 | 4.243 | 6.86 | 0.707 | 180.312 | 127.48058 | 540.90012 | 78.84841 |
31 | D10-18 | 4.243 | 6.86 | 0.707 | 180.312 | 127.48058 | 540.90012 | 78.84841 |
32 | D11-17 | 4.243 | 6.86 | 0.707 | 180.312 | 127.48058 | 540.90012 | 78.84841 |
33 | V1-30 | 3 | 12.3 | 0.5 | 97.5 | 48.75 | 146.25 | 11.89024 |
34 | V2-25 | 3 | 12.3 | 0.5 | 97.5 | 48.75 | 146.25 | 11.89024 |
35 | V3-24 | 3 | 12.3 | 0.5 | 97.5 | 48.75 | 146.25 | 11.89024 |
36 | V4-23 | 3 | 12.3 | 0.5 | 97.5 | 48.75 | 146.25 | 11.89024 |
37 | V5-22 | 3 | 12.3 | 0.5 | 97.5 | 48.75 | 146.25 | 11.89024 |
38 | V6-21 | 3 | 12.3 | 1 | 75 | 75 | 225 | 18.29268 |
39 | V7-20 | 3 | 12.3 | 0.5 | 127.5 | 63.75 | 191.25 | 15.54878 |
40 | V8-19 | 3 | 12.3 | 0.5 | 127.5 | 63.75 | 191.25 | 15.54878 |
41 | V9-18 | 3 | 12.3 | 0.5 | 127.5 | 63.75 | 191.25 | 15.54878 |
42 | V10-17 | 3 | 12.3 | 0.5 | 127.5 | 63.75 | 191.25 | 15.54878 |
43 | V11-12 | 3 | 12.3 | 0.5 | 127.5 | 63.75 | 191.25 | 15.54878 |
44 | прогиб, мм | 0.09964 | ||||||
45 | ||||||||
46 | l, м | A, см2 | Fn2 | Fn.n, кН | Fn2*Fn.n | Fn2*Fn.n*l | Fn2*Fn.n*l/A | |
47 | O1-2 | 3 | 24.3 | 0.7 | 97.5 | 68.25 | 204.75 | 8.42593 |
48 | O2-3 | 3 | 24.3 | 1.4 | 195 | 273 | 819 | 33.70370 |
49 | O3-4 | 3 | 24.3 | 2.1 | 292.5 | 614.25 | 1842.75 | 75.83333 |
50 | O4-5 | 3 | 24.3 | 1.8 | 390 | 702 | 2106 | 86.66667 |
51 | O5-6 | 3 | 24.3 | 1.5 | 487.5 | 731.25 | 2193.75 | 90.27778 |
52 | O6-7 | 3 | 24.3 | 1.5 | 487.5 | 731.25 | 2193.75 | 90.27778 |
53 | O7-8 | 3 | 24.3 | 1.2 | 510 | 612 | 1836 | 75.55556 |
54 | O8-9 | 3 | 24.3 | 0.9 | 382.5 | 344.25 | 1032.75 | 42.5 |
55 | O9-10 | 3 | 24.3 | 0.6 | 255 | 153 | 459 | 18.88889 |
56 | O10-11 | 3 | 24.3 | 0.3 | 127.5 | 38.25 | 114.75 | 4.72222 |
57 | U12-17 | 3 | 17.2 | 0 | 0 | 0 | 0 | 0 |
58 | U17-18 | 3 | 17.2 | 0.3 | 127.5 | 38.25 | 114.75 | 6.67151 |
59 | U18-19 | 3 | 17.2 | 0.6 | 255 | 153 | 459 | 26.68605 |
60 | U19-20 | 3 | 17.2 | 0.9 | 382.5 | 344.25 | 1032.75 | 60.04360 |
61 | U20-21 | 3 | 17.2 | 1.2 | 510 | 612 | 1836 | 106.74419 |
62 | U21-22 | 3 | 17.2 | 1.8 | 390 | 702 | 2106 | 122.44186 |
63 | U22-23 | 3 | 17.2 | 2.1 | 292.5 | 614.25 | 1842.75 | 107.13663 |
64 | U23-24 | 3 | 17.2 | 1.4 | 195 | 273 | 819 | 47.61628 |
65 | U24-25 | 3 | 17.2 | 0.7 | 97.5 | 68.25 | 204.75 | 11.90407 |
66 | U25-30 | 3 | 17.2 | 0 | 0 | 0 | 0 | 0 |
67 | D1-25 | 4.243 | 6.86 | 0.99 | 137.886 | 136.50714 | 579.19980 | 84.43146 |
68 | D2-24 | 4.243 | 6.86 | 0.99 | 137.886 | 136.50714 | 579.19980 | 84.43146 |
69 | D3-23 | 4.243 | 6.86 | 0.99 | 137.886 | 136.50714 | 579.19980 | 84.43146 |
70 | D4-22 | 4.243 | 6.86 | 0.424 | 137.886 | 58.46366 | 248.06133 | 36.16054 |
71 | D5-21 | 4.243 | 6.86 | 0.424 | 137.886 | 58.46366 | 248.06133 | 36.16054 |
72 | D7-21 | 4.243 | 6.86 | 0.424 | 31.82 | 13.49168 | 57.24520 | 8.34478 |
73 | D8-20 | 4.243 | 6.86 | 0.424 | 180.312 | 76.45229 | 324.38706 | 47.28674 |
74 | D9-19 | 4.243 | 6.86 | 0.424 | 180.312 | 76.45229 | 324.38706 | 47.28674 |
75 | D10-18 | 4.243 | 6.86 | 0.424 | 180.312 | 76.45229 | 324.38706 | 47.28674 |
76 | D11-17 | 4.243 | 6.86 | 0.424 | 180.312 | 76.45229 | 324.38706 | 47.28674 |
77 | V1-30 | 3 | 12.3 | 0.7 | 97.5 | 68.25 | 204.75 | 16.64634 |
78 | V2-25 | 3 | 12.3 | 0.7 | 97.5 | 68.25 | 204.75 | 16.64634 |
79 | V3-24 | 3 | 12.3 | 0.7 | 97.5 | 68.25 | 204.75 | 16.64634 |
80 | V4-23 | 3 | 12.3 | 0.7 | 97.5 | 68.25 | 204.75 | 16.64634 |
81 | V5-22 | 3 | 12.3 | 0.3 | 97.5 | 29.25 | 87.75 | 7.13415 |
82 | V6-21 | 3 | 12.3 | 0 | 75 | 0 | 0 | 0 |
83 | V7-20 | 3 | 12.3 | 0.3 | 127.5 | 38.25 | 114.75 | 9.32927 |
84 | V8-19 | 3 | 12.3 | 0.3 | 127.5 | 38.25 | 114.75 | 9.32927 |
85 | V9-18 | 3 | 12.3 | 0.3 | 127.5 | 38.25 | 114.75 | 9.32927 |
86 | V10-17 | 3 | 12.3 | 0.3 | 127.5 | 38.25 | 114.75 | 9.32927 |
87 | V11-12 | 3 | 12.3 | 0.3 | 127.5 | 38.25 | 114.75 | 9.32927 |
88 | прогиб, мм | 0.07903 | ||||||
89 | ||||||||
90 | l, м | A, см2 | Fn3 | Fn.n, кН | Fn3*Fn.n | Fn3*Fn.n*l | Fn3*Fn.n*l/A | |
91 | O1-2 | 3 | 24.3 | 0.3 | 97.5 | 29.25 | 87.75 | 3.61111 |
92 | O2-3 | 3 | 24.3 | 0.6 | 195 | 117 | 351 | 14.44444 |
93 | O3-4 | 3 | 24.3 | 0.9 | 292.5 | 263.25 | 789.75 | 32.5 |
94 | O4-5 | 3 | 24.3 | 1.2 | 390 | 468 | 1404 | 57.77778 |
95 | O5-6 | 3 | 24.3 | 1.5 | 487.5 | 731.25 | 2193.75 | 90.27778 |
96 | O6-7 | 3 | 24.3 | 1.5 | 487.5 | 731.25 | 2193.75 | 90.27778 |
97 | O7-8 | 3 | 24.3 | 1.8 | 510 | 918 | 2754 | 113.33333 |
98 | O8-9 | 3 | 24.3 | 2.1 | 382.5 | 803.25 | 2409.75 | 99.16667 |
99 | O9-10 | 3 | 24.3 | 1.4 | 255 | 357 | 1071 | 44.07407 |
100 | O10-11 | 3 | 24.3 | 0.7 | 127.5 | 89.25 | 267.75 | 11.01852 |
101 | U12-17 | 3 | 17.2 | 0 | 0 | 0 | 0 | 0 |
102 | U17-18 | 3 | 17.2 | 0.7 | 127.5 | 89.25 | 267.75 | 15.56686 |
103 | U18-19 | 3 | 17.2 | 1.4 | 255 | 357 | 1071 | 62.26744 |
104 | U19-20 | 3 | 17.2 | 2.1 | 382.5 | 803.25 | 2409.75 | 140.10174 |
105 | U20-21 | 3 | 17.2 | 1.8 | 510 | 918 | 2754 | 160.11628 |
106 | U21-22 | 3 | 17.2 | 1.2 | 390 | 468 | 1404 | 81.62791 |
107 | U22-23 | 3 | 17.2 | 0.9 | 292.5 | 263.25 | 789.75 | 45.91570 |
108 | U23-24 | 3 | 17.2 | 0.6 | 195 | 117 | 351 | 20.40698 |
109 | U24-25 | 3 | 17.2 | 0.3 | 97.5 | 29.25 | 87.75 | 5.10174 |
110 | U25-30 | 3 | 17.2 | 0 | 0 | 0 | 0 | 0 |
111 | D1-25 | 4.243 | 6.86 | 0.424 | 137.886 | 58.46366 | 248.06133 | 36.16054 |
112 | D2-24 | 4.243 | 6.86 | 0.424 | 137.886 | 58.46366 | 248.06133 | 36.16054 |
113 | D3-23 | 4.243 | 6.86 | 0.424 | 137.886 | 58.46366 | 248.06133 | 36.16054 |
114 | D4-22 | 4.243 | 6.86 | 0.424 | 137.886 | 58.46366 | 248.06133 | 36.16054 |
115 | D5-21 | 4.243 | 6.86 | 0.424 | 137.886 | 58.46366 | 248.06133 | 36.16054 |
116 | D7-21 | 4.243 | 6.86 | 0.424 | 31.82 | 13.49168 | 57.24520 | 8.34478 |
117 | D8-20 | 4.243 | 6.86 | 0.424 | 180.312 | 76.45229 | 324.38706 | 47.28674 |
118 | D9-19 | 4.243 | 6.86 | 0.99 | 180.312 | 178.50888 | 757.41318 | 110.41008 |
119 | D10-18 | 4.243 | 6.86 | 0.99 | 180.312 | 178.50888 | 757.41318 | 110.41008 |
120 | D11-17 | 4.243 | 6.86 | 0.99 | 180.312 | 178.50888 | 757.41318 | 110.41008 |
121 | V1-30 | 3 | 12.3 | 0.3 | 97.5 | 29.25 | 87.75 | 7.13415 |
122 | V2-25 | 3 | 12.3 | 0.3 | 97.5 | 29.25 | 87.75 | 7.13415 |
123 | V3-24 | 3 | 12.3 | 0.3 | 97.5 | 29.25 | 87.75 | 7.13415 |
124 | V4-23 | 3 | 12.3 | 0.3 | 97.5 | 29.25 | 87.75 | 7.13415 |
125 | V5-22 | 3 | 12.3 | 0.3 | 97.5 | 29.25 | 87.75 | 7.13415 |
126 | V6-21 | 3 | 12.3 | 0 | 75 | 0 | 0 | 0 |
127 | V7-20 | 3 | 12.3 | 0.3 | 127.5 | 38.25 | 114.75 | 9.32927 |
128 | V8-19 | 3 | 12.3 | 0.7 | 127.5 | 89.25 | 267.75 | 21.76829 |
129 | V9-18 | 3 | 12.3 | 0.7 | 127.5 | 89.25 | 267.75 | 21.76829 |
130 | V10-17 | 3 | 12.3 | 0.7 | 127.5 | 89.25 | 267.75 | 21.76829 |
131 | V11-12 | 3 | 12.3 | 0.7 | 127.5 | 89.25 | 267.75 | 21.76829 |
132 | прогиб, мм | 0.08511 | ||||||
133 |