Problem 7.55 Part A Draw the shear Click on .add vertical line or to add discont
ID: 3143320 • Letter: P
Question
Problem 7.55 Part A Draw the shear Click on .add vertical line or to add discontinuity line. Then click on-add segment" button to add the lines, eg. if in your answer the type of a function i click on "add segment" button to add functions between the lines. Be sure to indicate the correct types of the correct types of the functions between sing siope, the answer will be graded as incorrect. Use the button is linear increasing slope-for the function that actually has linear decreasing slope, the answer will be 8 5Explanation / Answer
Let the reaction forces at supports A & B be denoted by R1 & R2 respectively.
Calculation for reaction forces at supports :-
For balanced condition, all Forces and Moments acting on beam must be in Equilibrium
Consider Momemt about point A
Clockwise moments = Counter clockwise moments
(4×320) +(20×11)+150 = (R2×8)
This gives us,
R2 = 206.25
Force equilibrium;
upward forces = downward forces
R1 + R2 = 320+20
This gives us,
R1 = 133.75
Calculation for Shear forces in KN(SF) :-
SF at A= +133.75
SF at point just before B = +133.75 - 320 = -186.25
SF at B= -186.25 +206.5 =+20.25
SF at point C = 20.25 -20 = 0.25
Calculation for Bending moment in KN-M (BM) :-
BM at A = 0
BM at