Ðàñ÷åòíî-ãðàôè÷åñêèå ðàáîòû

 

 

Ãëàâíàÿ

 

Çàäà÷à 1. Ðàñ÷åò ñëîæíûõ ñîñòàâíûõ íåñèììåòðè÷íûõ ïîïåðå÷íûõ ñå÷åíèé.

Êîíñòðóêòîð ñå÷åíèé SOPROMATGURU.RU

Äëÿ ñå÷åíèÿ, èçîáðàæåííîãî íà ðèñ.1 òðåáóåòñÿ:

1) âû÷åðòèòü ñå÷åíèå â ìàñøòàáå è ïîêàçàòü îñíîâíûå ðàçìåðû â ÷èñëàõ.

2) îïðåäåëèòü ïîëîæåíèå öåíòðà òÿæåñòè è óêàçàòü ïîëîæåíèå ãëàâíûõ öåíòðàëüíûõ îñåé.

3) âû÷èñëèòü âåëè÷èíó ãëàâíûõ ìîìåíòîâ èíåðöèè è ìîìåíòîâ ñîïðîòèâëåíèÿ ñå÷åíèÿ.

4) îïðåäåëèòü ãëàâíûå ðàäèóñû èíåðöèè ñå÷åíèÿ.

Ïðè ðàñ÷åòå âñå íåîáõîäèìûå äàííûå ñëåäóåò âçÿòü èç òàáëèöû 1.

Òàáëèöà 1

Íîìåð

ñòðîêè

Ñõåìà ñå÷åíèÿ

ïî ðèñ.1

ñ,

ì

01

1

0,1

02

2

0,15

03

3

0,2

04

4

0,25

05

5

0,3

06

6

0,1

07

7

0,15

08

8

0,2

09

9

0,25

10

10

0,3

11

11

0,2

12

12

0,25

13

13

0,3

14

14

0,1

15

15

0,15

16

16

0,1

17

17

0,15

18

18

0,2

19

19

0,25

20

20

0,3

21

21

0,1

22

22

0,15

23

23

0,2

24

24

0,25

25

25

0,3

26

26

0,2

27

27

0,25

28

28

0,3

29

29

0,25

30

30

0,3

31

31

0,1

32

32

0,15

33

33

0,2

34

34

0,25

35

35

0,3

36

36

0,2

 

â

á

 

1 ñõåìà                                 2 ñõåìà                                  3 ñõåìà

 

4 ñõåìà                             5 ñõåìà                                  6 ñõåìà

 

7 ñõåìà                                 8 ñõåìà                                  9 ñõåìà

 

10 ñõåìà                                 11 ñõåìà                                  12 ñõåìà

 

13 ñõåìà                                 14 ñõåìà                                  15 ñõåìà

 

16 ñõåìà                                 17 ñõåìà                                        18 ñõåìà

 

19 ñõåìà                                 20 ñõåìà                                  21 ñõåìà

 

22 ñõåìà                      23 ñõåìà                                  24 ñõåìà

 

25 ñõåìà                                 26 ñõåìà                                  27 ñõåìà

 

28 ñõåìà                                 29 ñõåìà                                  30 ñõåìà

 

31 ñõåìà                                 32 ñõåìà                                  33 ñõåìà

 

34 ñõåìà                                 35 ñõåìà                                        36 ñõåìà

Ðèñ.1

 

Çàäà÷à 2. Ðàñ÷åò ñëîæíûõ ñîñòàâíûõ íåñèììåòðè÷íûõ ïîïåðå÷íûõ ñå÷åíèé èç ïðîêàòíûõ ïðîôèëåé.

Äëÿ ñîñòàâíîãî ïîïåðå÷íîãî ñå÷åíèÿ (ðèñ.2), ñîñòîÿùåãî èç äâóòàâðà, øâåëëåðà, óãîëêà, çàäàííûõ â òàáë.2, òðåáóåòñÿ:

1) îïðåäåëèòü ïîëîæåíèå öåíòðà òÿæåñòè;

2) íàéòè âåëè÷èíó îñåâûõ è öåíòðîáåæíûõ ìîìåíòîâ èíåðöèè îòíîñèòåëüíî öåíòðàëüíûõ îñåé;

3) îïðåäåëèòü íàïðàâëåíèå ãëàâíûõ öåíòðàëüíûõ îñåé;

4) íàéòè âåëè÷èíó ìîìåíòîâ èíåðöèè îòíîñèòåëüíî ãëàâíûõ öåíòðàëüíûõ îñåé;

5) âû÷åðòèòü ñå÷åíèé â ìàñøòàáå 1:2 è óêàçàòü íà íåì âñå ðàçìåðû â ÷èñëàõ è âñå îñè.

Ïðè ðàñ÷åòå âñå íåîáõîäèìûå äàííûå ñëåäóåò âçÿòü èç òàáëèöû 2 è ñîðòàìåíòà.

Òàáëèöà 2

Íîìåð

ñòðîêè

Ñõåìà ñå÷åíèÿ

ïî ðèñ.2

Øâåëëåð

¹

Ðàâíîáîêèé

óãîëîê ¹

Äâóòàâð

¹

01

1

14

8(8)

12

02

2

16

8(6)

14

03

3

18

9(8)

16

04

4

20

9(7)

18

05

5

22

9(6)

20à

06

6

24

10(8)

20

07

7

27

10(10)

22à

08

8

30

10(12)

22

09

9

33

12,5(10)

24à

10

10

36

12,5(12)

24

11

11

14

8(8)

12

12

12

16

8(6)

14

13

13

18

9(8)

16

14

14

20

9(7)

18

15

15

22

9(6)

20à

16

16

24

10(8)

20

17

17

27

10(10)

22à

18

18

30

10(12)

22

19

19

33

12,5(10)

24à

20

20

36

12,5(12)

24

21

21

14

8(8)

12

22

22

16

8(6)

14

23

23

18

9(8)

16

24

24

20

9(7)

18

25

25

22

9(6)

20à

26

26

24

10(8)

20

27

27

27

10(10)

22à

28

28

30

10(12)

22

29

29

33

12,5(10)

24à

30

30

36

12,5(12)

24

31

31

14

8(8)

18

32

32

16

8(6)

20à

33

33

18

9(8)

20

34

34

20

9(7)

22à

35

35

22

9(6)

22

36

36

24

10(8)

24à

 

â

á

à

ã

 

1 ñõåìà                                 2 ñõåìà                                  3 ñõåìà

image077image077image077

 

4 ñõåìà                                 5 ñõåìà                                  6 ñõåìà

image077              image077      image077

 

 

7 ñõåìà                                                        8 ñõåìà

image077image077

 

9 ñõåìà                                          10 ñõåìà

image077    image077

 

11 ñõåìà                                 12 ñõåìà                                  13 ñõåìà

image077image077image077

 

14 ñõåìà                         15 ñõåìà                            16 ñõåìà

image077              image077      image077

 

 

17 ñõåìà                                                        18 ñõåìà

image077image077

 

19 ñõåìà                                          20 ñõåìà

image077    image077

 

21 ñõåìà                                 22 ñõåìà                              23 ñõåìà

image077image077image077

 

24 ñõåìà                        25 ñõåìà                                  26 ñõåìà

image077              image077      image077

 

 

27 ñõåìà                                                        28 ñõåìà

image077image077

 

29 ñõåìà                                          30 ñõåìà

image077    image077

 

31 ñõåìà                                 32 ñõåìà                                  33 ñõåìà

image077image077image077

 

34 ñõåìà                            35 ñõåìà                               36 ñõåìà

image077              image077      image077

Ðèñ. 2

 

Çàäà÷à 3. Ðàñ÷åò ñëîæíûõ ñîñòàâíûõ íåñèììåòðè÷íûõ ïîïåðå÷íûõ ñå÷åíèé èç ïðîêàòíûõ ïðîôèëåé.

Äëÿ çàäàííûõ ñõåì (ðèñ.3) íåîáõîäèìî:

1) Âû÷åðòèòü ïîïåðå÷íîå ñå÷åíèå â ñòðîãîì ìàñøòàáå.

2) Îïðåäåëèòü ïîëîæåíèå öåíòðà òÿæåñòè.

3) Íàéòè âåëè÷èíû îñåâûõ ìîìåíòîâ èíåðöèè îòíîñèòåëüíî öåíòðàëüíûõ îñåé.

4) Íàéòè âåëè÷èíó öåíòðîáåæíîãî ìîìåíòà èíåðöèè îòíîñèòåëüíî öåíòðàëüíûõ îñåé.

5) Îïðåäåëèòü ïîëîæåíèå ãëàâíûõ îñåé èíåðöèè.

6) Íàéòè ãëàâíûå ìîìåíòû èíåðöèè.

Ïðè ðàñ÷åòå âñå íåîáõîäèìûå äàííûå ñëåäóåò âçÿòü èç òàáëèöû 3 è ñîðòàìåíòà.

                                                                                                                                                

Òàáëèöà 3

Íîìåð

ñòðîêè

Ñõåìà ñå÷åíèÿ

ïî ðèñ.3

Øâåëëåð

 

Ïðÿìîóãîëüíèê

Äâóòàâð

 

Óãîëîê

ðàâíîïîëî÷íûé

Óãîëîê

íåðàâíîïîëî÷íûé

01

1

8

100õ30

10

30x5

50x32x4

02

2

10

100õ40

12

40x6

56x36x4

03

3

12

100õ20

14

50x4

63x40x8

04

4

14

80õ40

16

56x4

70x45x5

05

5

14à

80õ60

18

63x6

80x50x6

06

6

16

80õ100

20

70x8

90x56x6

07

7

16à

80õ20

20à

80x8

100x63x6

08

8

18

60õ40

22

90x9

90x56x8

09

9

18à

60õ60

22à

75x9

140x90x10

10

10

20

60õ40

27

100x10

160x100x12

11

11

14

100õ20

14

40x6

56x36x4

12

12

16

80õ40

16

50x4

63x40x8

13

13

18

80õ60

18

56x4

70x45x5

14

14

10

80õ100

20

63x6

80x50x6

15

15

12

80õ20

20à

70x8

90x56x6

16

16

14

60õ40

22

80x8

100x63x6

17

17

14à

100õ20

22à

90x9

90x56x8

18

18

16

80õ40

22

75x9

140x90x10

19

19

16à

80õ60

24à

100x10

50x32x4

20

20

18

80õ100

24

63x6

56x36x4

21

21

18à

80õ20

20

70x8

63x40x8

22

22

20

80õ40

20à

80x8

160x100x12

23

23

14

80õ60

22

90x9

56x36x4

24

24

14à

80õ100

22à

75x9

63x40x8

25

25

16

80õ20

27

100x10

70x45x5

26

26

8

60õ40

14

40x6

80x50x6

27

27

10

100õ20

16

50x4

90x56x6

28

28

12

80õ40

18

56x4

100x63x6

29

29

14

80õ60

20

63x6

90x56x8

30

30

14à

80õ100

20à

80x8

140x90x10

31

31

16

80õ20

22

90x9

50x32x4

32

32

16à

100õ20

22à

75x9

56x36x4

33

33

18

80õ40

20

100x10

63x40x8

34

34

18à

80õ60

22à

40x6

63x40x8

35

35

20

80õ100

22

50x4

70x45x5

36

36

14

80õ20

16

75x9

80x50x6

 

à

á

â

ã

à

á

 

1 ñõåìà                       2 ñõåìà                   3 ñõåìà                4 ñõåìà

                                     

 

 

5 ñõåìà                       6 ñõåìà                          7 ñõåìà                    8 ñõåìà   

               

 

 

9 ñõåìà                       10 ñõåìà                      11 ñõåìà                    12 ñõåìà   

                                            

 

 

13 ñõåìà                       14 ñõåìà                      15 ñõåìà                    16 ñõåìà   

                                                        

 

 

    17 ñõåìà                       18 ñõåìà                      19 ñõåìà                    20 ñõåìà   

                         

 

 

21 ñõåìà                       22 ñõåìà                      23 ñõåìà                    24 ñõåìà   

                                            

 

 

25 ñõåìà                       26 ñõåìà                      27 ñõåìà                    28 ñõåìà   

                

 

 

       29 ñõåìà                 30 ñõåìà              31 ñõåìà                32 ñõåìà   

                               

 

 

33 ñõåìà                       34 ñõåìà                      35 ñõåìà                   36 ñõåìà   

            

 

Ðèñ.3

 

Çàäà÷à 4. Ðàñ÷åò ñëîæíûõ ñîñòàâíûõ íåñèììåòðè÷íûõ ïîïåðå÷íûõ ñå÷åíèé èç ïðîêàòíûõ ïðîôèëåé.

Äëÿ íåñèììåòðè÷íûõ ñå÷åíèé (ðèñ.4) ïðè ðàçìåðàõ, óêàçàííûõ â òàáëèöå 4, òðåáóåòñÿ:

1) îïðåäåëèòü ïîëîæåíèå öåíòðà òÿæåñòè;

2) âû÷èñëèòü îñåâûå è öåíòðîáåæíûå ìîìåíòû èíåðöèè îòíîñèòåëüíî öåíòðàëüíûõ îñåé;

3) îïðåäåëèòü ïîëîæåíèå ãëàâíûõ öåíòðàëüíûõ îñåé èíåðöèè è âåëè÷èíû ãëàâíûõ ìîìåíòîâ èíåðöèè;

4) ïîñòðîèòü êðóã èíåðöèè è îïðåäåëèòü ãðàôè÷åñêè âåëè÷èíû ãëàâíûõ ìîìåíòîâ èíåðöèè è íàïðàâëåíèÿ ãëàâíûõ öåíòðàëüíûõ îñåé;

5) ñðàâíèòü ðåçóëüòàòû àíàëèòè÷åñêîãî è ãðàôè÷åñêîãî ðàñ÷åòîâ.

Ïðè ðàñ÷åòå âñå íåîáõîäèìûå äàííûå äëÿ ïðîêàòíûõ ïðîôèëåé ñëåäóåò âçÿòü èç ñîðòàìåíòà.

                                                                                                                                                          

Òàáëèöà 4

Íîìåð

ñòðîêè

Ñõåìà ñå÷åíèÿ

ïî ðèñ.4

Íîìåð

äâóòàâðà

Íîìåð

øâåëëåðà

Ðàâíîáîêèé

óãîëîê, ìì

Íåðàâíîáîêèé

óãîëîê, ìì

Ëèñò,

ìì

à, ñì

01

1

10

10

80õ80õ6

100õ63õ8

160õ10

5

02

2

12

12

90õ90õ6

110õ70õ8

160õ12

6

03

3

14

14

90õ90õ8

125õ80õ7

180õ10

8

04

4

16

16

100õ100õ8

125õ80õ8

180õ12

10

05

5

18

18

100õ100õ12

125õ80õ10

200õ10

12

06

6

20

20

110õ110õ7

140õ90õ8

200õ12

4

07

7

22

22

110õ110õ8

140õ90õ10

200õ16

16

08

8

24

24

125õ125õ8

160õ100õ10

220õ12

15

09

9

27

27

125õ125õ10

180õ110õ10

220õ14

18

10

10

30

30

140õ140õ12

180õ110õ12

240õ16

20

11

11

33

33

160õ160õ12

200õ125õ14

240õ20

7

12

12

36

36

160õ160õ16

200õ125õ16

300õ16

9

13

13

40

36

200õ200õ16

250õ160õ12

350õ16

11

14

14

45

40

220õ220õ16

250õ160õ16

400õ20

14

15

15

10

10

110õ110õ7

100õ63õ8

180õ12

8

16

16

12

12

110õ110õ8

110õ70õ8

200õ10

10

17

17

14

14

125õ125õ8

125õ80õ7

200õ12

12

18

18

16

16

125õ125õ10

125õ80õ8

200õ16

4

19

19

18

18

140õ140õ12

125õ80õ10

220õ12

16

20

20

20

20

160õ160õ12

125õ80õ8

220õ14

15

21

21

22

22

160õ160õ16

125õ80õ10

240õ16

18

22

22

24

24

200õ200õ16

140õ90õ8

240õ20

20

23

23

27

27

220õ220õ16

140õ90õ10

300õ16

7

24

24

30

10

80õ80õ6

160õ100õ10

160õ10

9

25

25

33

12

90õ90õ6

180õ110õ10

160õ12

5

26

26

36

14

90õ90õ8

180õ110õ12

180õ10

6

27

27

40

16

100õ100õ8

200õ125õ14

180õ12

8

28

28

45

18

100õ100õ12

200õ125õ16

200õ10

10

29

29

33

20

110õ110õ7

250õ160õ12

200õ12

12

30

30

36

22

110õ110õ8

250õ160õ16

200õ16

4

31

31

40

24

125õ125õ8

100õ63õ8

220õ12

16

32

32

45

27

125õ125õ10

110õ70õ8

220õ14

15

33

33

10

30

140õ140õ12

125õ80õ7

240õ16

18

34

34

12

33

160õ160õ12

180õ110õ10

180õ12

10

35

35

14

36

160õ160õ16

180õ110õ12

200õ10

16

36

36

16

36

125õ125õ8

200õ125õ14

200õ12

12

 

â

ã

à

â

á

à

ã

      

1 ñõåìà                             2 ñõåìà                                 3 ñõåìà

                                    

 

 

4 ñõåìà                                      5 ñõåìà                                 6 ñõåìà

                                               

 

 

7 ñõåìà                                          8 ñõåìà                                           9 ñõåìà