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CIVIL ENGINEERING DEPARTMENT

LAB REPORT

EXERIMENT. NUMBER 4

Fixing Forces in Truss

STRENGTH MECHANICS you

(CIVIL0006)

Posted by:

Fahad Ali AL-Amri

11f8247

Treatment B

Published to:

Dr . Memory Kishore Manchiryal

Fall2014

1 . Experiment Name: Resolving Causes in Truss

2 . Goal:

The pressure in the part of truss is to be compared with the forces assessed in the users with the ideals found by resolution with the joints. 3. Scope with the experiment:

The experiment is usually to know the mother nature of force in every single person of the Truss. 4. Research Setup

While shown in figure one particular, check the joint parts in the truss and the a lot.

Figure1: free body picture of the shape

5. Apparatus:

HST 18 Structural framework

6. Methods of experiment:

1 ) Apply pre-load to the truss of say 30N to 50N to have the joints stable. Release this load two or three times in order to ensure setting from the joints and members. installment payments on your On the last cycle maintain the preload fastened. It may be essential to adjust this kind of force from time to time as the truss settles. 3. Zero (tare) all connected stations of the HAD200. This will be the absolutely no (NO LOAD) starting value. Record almost all stains for a lot of channels in table1. 4. Apply tons to the truss via the launching mechanism in approximately 15 N installments up to a 90 N. At each load increment record the person channel strain values in table1

six. Observations and calculations:

Table1: Member strains for Launching

Truss affiliate No .

Applied Load, F(N)

Applied Pressure from HAD 200

zero

9. eight

19. six

31. 0

41. 4

55. you

59. one particular

69. four

79. six

89. almost 8

99. 4

U1L2(1)

Tension (пЃ­пЃҐ)

0

1

a couple of

3

3

13

twenty

53

64

69

109

Force(N)

zero

6. 25

12. 5

18. seventy five

18. seventy five

81. twenty-five

125

331. 25

4 hundred

431. 25

681. 25

Theoretical Force, N

zero

11. 51

23. 12-15

36. 43

48. 65

64. seventy five

69. forty five

81. 56

93. fifty four

105. 53

116. 81

L1L2(2)

Strain (пЃ­пЃҐ)

0

3

3

2

forty-four

0

-4

-33

-39

-39

-75

Force(N)

zero

18. seventy five

18. seventy five

12. five

25

zero

-25

-206. 25

-243. 75

-243. 75

about -460. 75

Theoretical Force, D

0

6th. 05

doze. 16

19. 13

25. 55

34. 01

36. 48

forty two. 84

forty-nine. 14

55. 43

61. 36

U1L1(3)

Strain (пЃ­пЃҐ)

0

zero

-1

-2

-2

-8

-12

-36

-44

-46

-71

Force(N)

0

0

-6. twenty-five

-12. five

-12. your five

-50

-75

-225

-275

-287. 5

-443. 75

Theoretical Power, N

zero

9. almost 8

19. 7

31

41. 4

fifty five. 1

fifty nine. 1

69. 4

seventy nine. 6

fifth there’s 89. 8

99. 4

U0L1(4)

Strain (пЃ­пЃҐ)

0

0

0

0

0

six

11

thirty-three

41

43

69

Force(N)

0

0

0

zero

0

43. 75

68. 75

206. 25

256. 25

268. 75

431. 25

Theoretical Force, D

0

6th. 05

12. 16

nineteen. 13

25. 55

thirty four. 01

thirty six. 48

40. 84

49. 14

fifty five. 43

61. 36

U0L1(5)

Strain (пЃ­пЃҐ)

0

2

3

5

4

18

22

-71

73

77

123

Force(N)

0

12. 5

18. 75

twenty-five

25

87. 5

137. 5

-443. 75

456. 25

481. 25

768. 75

Theoretical Force, In

0

eleven. 51

3. 15

thirty eight. 43

forty eight. 65

64. 75

69. 45

81. 56

93. 54

a hundred and five. 53

116. 81

L0L1(6)

Strain (пЃ­пЃҐ)

0

2

2

0

2

-10

-18

sixty

-86

-88

-153

Force(N)

0

doze. 5

doze. 5

doze. 5

12. 5

-62. 5

-112. 5

375

-537. 5

-550

-956. 25

Assumptive Force, N

0

12. 10

24. 32

38. 27

fifty-one. 11

sixty-eight. 03

seventy two. 97

eighty five. 69

98. 28

110. 87

122. 73

Graph1: HST12 Affiliate Forces Vs Applied Load

8. Referrals:

1 . Doctor Kishore, L (20140 Fixing forces in truss. Strength Mechanics 1, Middle East College, 04th December 2014[lab manual taken by Later on, A] 2 . Working manual supplied along with apparatus ES3.

References: 1 ) Dr . Kishore, R (20140 Resolving forces in truss. Structural Mechanics 1, Middle East School, 04th December 2014[lab manual used by Joe, A]

2 . Functioning manual provided along with apparatus ES3.

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