Topic; EQUILIBRIUM OF PARALLEL FORCE SYSTEM 3. The roof truss shown has its upper chord symmetrically loaded, with a single load at its lower chord.Find the end reactions R1 and R2.4. kN4 kN4 kN4 kN4 kN2 kN2 kN4.50 mA24 kNRA6 kNRc– 6 panels @ 3 m = 18 m4. The two beams ABC and DE are simply supported at A, B and E, with roller support at C. Threeconcentrated load are shown. Find the reactions RA, RB. Rc and RE.3 kN10 kN20,kN3.50 m1.50 mDEB.1.301.50'm1.50 m 2.00m3.50 mRERARB 1. The wheel loads on a jeep are given in the figure shown. Determine distance x so that the reaction ofthe beam at A is twice as great as the reaction at B.600200A-4-15-2RR2. The 5 m long beam AB has two types of distributed loads, and one concentrated load as shown. Findthe reactions at each end.WDR = 160 N1.0 mWDT = 200 N커2/3 ㎡+300 N200 N/m80 N/mAB2.00 m.00 mRB2.00 mRA

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3. The roof truss shown has its upper chord symmetrically loaded, with a single load at its lower chord Find the end reactions R, and R2. 4.kN 4 kN 4 kN 4 kN 4 kN. 2 kN 2 kN 4.50 m 24 kN RA 6 kN - 6 panels @ 3 m = 18 m

3. The roof truss shown has its upper chord symmetrically loaded, with a single load at its lower chord Find the end reactions R, and R2. 4.kN 4 kN 4 kN 4 kN 4 kN. 2 kN 2 kN 4.50 m 24 kN RA 6 kN - 6 panels @ 3 m = 18 m

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Chapter10: Plate Girders

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Problem 10.7.9P

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Concept explainers

Laws of Equilibrium

A body is said to be in equilibrium if the system of forces acting on the body tends to keep the body at rest, in other words, there is no translation motion or net torque on the body. Under such conditions, the equilibrium conditions are to be applied to analyze the condition. The branch of mechanics that deals with this condition is known as 'statics'. Under equilibrium, there are no net forces on the body.

Question

Topic; EQUILIBRIUM OF PARALLEL FORCE SYSTEM

3. The roof truss shown has its upper chord symmetrically loaded, with a single load at its lower chord.
Find the end reactions R1 and R2.
4. kN
4 kN
4 kN
4 kN
4 kN
2 kN
2 kN
4.50 m
A
24 kN
RA
6 kN
Rc
– 6 panels @ 3 m = 18 m
4. The two beams ABC and DE are simply supported at A, B and E, with roller support at C. Three
concentrated load are shown. Find the reactions RA, RB. Rc and RE.
3 kN
10 kN
20,kN
3.50 m
1.50 m
DE
B.
1.30
1.50'm
1.50 m 2.00m
3.50 m
RE
RA
RB

1. The wheel loads on a jeep are given in the figure shown. Determine distance x so that the reaction of
the beam at A is twice as great as the reaction at B.
600
200
A
-4-
15-
2R
R
2. The 5 m long beam AB has two types of distributed loads, and one concentrated load as shown. Find
the reactions at each end.
WDR = 160 N
1.0 m
WDT = 200 N
커2/3 ㎡+
300 N
200 N/m
80 N/m
A
B
2.00 m
.00 m
RB
2.00 m
RA

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