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F2 10,000# HW Prob 12 WHI 30ft F1 = Uniform load of 500#/LF RA RB 50000# dpon RA RB FBD of Moments around Rb Step 1: Draw the forces (and their distance from Rb) that create a moment around Rb in the FBD above Step 2: To Solve for RAy, sum moments about RB: CW Moment = CCW Moment CW Moment (+) Mag CCW Moment (-) Dist. Moment Force Mag Moment Force Dist. Sum CWM: Sum CCWM: RA RB FBD of Moments around Ra Step 3: Draw the forces (and their distances from Ra) that create a moment around Ra in the FBD Step 4: To Solve for RBy, sum moments about RA: CW Moment CCW Moment CW Moment (+) Mag CCW Moment (-) Dist. Moment Force Mag Moment Force Dis. Sum CCWM: Sum CWM:

F2 10,000# HW Prob 12 WHI 30ft F1 = Uniform load of 500#/LF RA RB 50000# dpon RA RB FBD of Moments around Rb Step 1: Draw the forces (and their distance from Rb) that create a moment around Rb in the FBD above Step 2: To Solve for RAy, sum moments about RB: CW Moment = CCW Moment CW Moment (+) Mag CCW Moment (-) Dist. Moment Force Mag Moment Force Dist. Sum CWM: Sum CCWM: RA RB FBD of Moments around Ra Step 3: Draw the forces (and their distances from Ra) that create a moment around Ra in the FBD Step 4: To Solve for RBy, sum moments about RA: CW Moment CCW Moment CW Moment (+) Mag CCW Moment (-) Dist. Moment Force Mag Moment Force Dis. Sum CCWM: Sum CWM:

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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F2 10,000# HW Prob 12 30ft WH F1 = Uniform load of 500#/LF RA RB 50000 dpon RA RB FBD of Moments around Rb Step 1: Draw the forces (and their distance from Rb) that create a moment around Rb in the FBD above Step 2: To Solve for RAy, sum moments about RB: CW Moment = CCW Moment CW Moment (+) Mag CCW Moment (-) Dist. Moment Force Dist. Moment Force Mag Sum CWM: Sum CCWM: RA RB FBD of Moments around Ra Step 3: Draw the forces (and their distances from Ra) that create a moment around Ra in the FBD Step 4: To Solve for RBy, sum moments about RA: CW Moment CCW Moment CCW Moment (-) CW Moment (+) Dist. Moment Force Mag Dist. Moment Force Mág Sum CCWM: Sum CWM: To Check your answer, Sum Forces in the Y direction 0 To find Rax sum forces in x direction =D0 IS THERE ANX FORCE AT THE PINNED CONNECTION? If yes, to the left or right? If Yes, combine the x and y forces at the pinned connection to determine the reaction at the pinned connection and use trigonometry to determine the direction of the reaction: ans: Rby 28kps, Ray 22kps, Ra 24.166 kps @114 deg 82
Transcribed Image Text:F2 10,000# HW Prob 12 30ft WH F1 = Uniform load of 500#/LF RA RB 50000 dpon RA RB FBD of Moments around Rb Step 1: Draw the forces (and their distance from Rb) that create a moment around Rb in the FBD above Step 2: To Solve for RAy, sum moments about RB: CW Moment = CCW Moment CW Moment (+) Mag CCW Moment (-) Dist. Moment Force Dist. Moment Force Mag Sum CWM: Sum CCWM: RA RB FBD of Moments around Ra Step 3: Draw the forces (and their distances from Ra) that create a moment around Ra in the FBD Step 4: To Solve for RBy, sum moments about RA: CW Moment CCW Moment CCW Moment (-) CW Moment (+) Dist. Moment Force Mag Dist. Moment Force Mág Sum CCWM: Sum CWM: To Check your answer, Sum Forces in the Y direction 0 To find Rax sum forces in x direction =D0 IS THERE ANX FORCE AT THE PINNED CONNECTION? If yes, to the left or right? If Yes, combine the x and y forces at the pinned connection to determine the reaction at the pinned connection and use trigonometry to determine the direction of the reaction: ans: Rby 28kps, Ray 22kps, Ra 24.166 kps @114 deg 82
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