3. Reactions on support E: Ex, Ey and Me for a 4. Reactions in cable to F: • Equilibrium Equations: 1. Fx = 0: there are FE → = lb; → support; → forces in x direction, hence Ex = lb;
3. Reactions on support E: Ex, Ey and Me for a 4. Reactions in cable to F: • Equilibrium Equations: 1. Fx = 0: there are FE → = lb; → support; → forces in x direction, hence Ex = lb;
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![# Educational Website Example
## Problem Description
The rig shown consists of a 1200-lb horizontal member ABC and a vertical member DBE welded together at B. The rig is being used to raise a 3600-lb crate at a distance \( x = 11.7 \) ft from the vertical member DBE. If the tension in the cable is 3.4 kips, determine the reaction at E, assuming that the cable is anchored at F as shown in the figure.
### Diagram Explanation
- **Components**:
- A horizontal member labeled as ABC.
- A vertical member labeled as DBE.
- The two members are connected at point B.
- A cable is attached to point D on the rig and anchored at point F.
- **Dimensions**:
- The horizontal length from A to C is 17.5 ft.
- The length from D to B is 3.75 ft.
- The length from B to F is 5 ft.
- The crate is positioned 6.5 ft (x = 11.7 ft mentioned but related to crate position).
- **Weights and Forces**:
- The weight of the crate is 3600 lb, depicted hanging from point C.
- The weight of the member ABC is 1200 lb, acting at the midpoint.
- The tension in the cable is 3.4 kips (3400 lbs).
## Solution Steps
1. **Free Body Diagram (FBD)**:
Create an FBD for the system by yourself. Take the frame as your FBD and detach it from supports.
2. **Support Reactions**:
- Determine the number of supports and calculate the total forces and reactions on frame ABCDE.
3. **Identify Each Force**:
- Weight of the crate (\( W_{\text{crate}} \)): \( \_\_\_\_ \) lb, direction: \( \_\_\_\_ \).
- Self-weight of the horizontal member ABC (\( W_{\text{ABC}} \)): \( \_\_\_\_ \) lb, direction: \( \_\_\_\_ \).
4. **Reactions at Support E**:
- \( E_x, E_y \) and moment \( M_E \) about support.
5. **Reactions in Cable to F**:
- Compute the tension resulting from](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9a42e238-4116-4e80-81a7-f4d567b4bd0e%2F4a7f36cb-3461-44ab-912e-3292187cf7cc%2Fs3lskjb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:# Educational Website Example
## Problem Description
The rig shown consists of a 1200-lb horizontal member ABC and a vertical member DBE welded together at B. The rig is being used to raise a 3600-lb crate at a distance \( x = 11.7 \) ft from the vertical member DBE. If the tension in the cable is 3.4 kips, determine the reaction at E, assuming that the cable is anchored at F as shown in the figure.
### Diagram Explanation
- **Components**:
- A horizontal member labeled as ABC.
- A vertical member labeled as DBE.
- The two members are connected at point B.
- A cable is attached to point D on the rig and anchored at point F.
- **Dimensions**:
- The horizontal length from A to C is 17.5 ft.
- The length from D to B is 3.75 ft.
- The length from B to F is 5 ft.
- The crate is positioned 6.5 ft (x = 11.7 ft mentioned but related to crate position).
- **Weights and Forces**:
- The weight of the crate is 3600 lb, depicted hanging from point C.
- The weight of the member ABC is 1200 lb, acting at the midpoint.
- The tension in the cable is 3.4 kips (3400 lbs).
## Solution Steps
1. **Free Body Diagram (FBD)**:
Create an FBD for the system by yourself. Take the frame as your FBD and detach it from supports.
2. **Support Reactions**:
- Determine the number of supports and calculate the total forces and reactions on frame ABCDE.
3. **Identify Each Force**:
- Weight of the crate (\( W_{\text{crate}} \)): \( \_\_\_\_ \) lb, direction: \( \_\_\_\_ \).
- Self-weight of the horizontal member ABC (\( W_{\text{ABC}} \)): \( \_\_\_\_ \) lb, direction: \( \_\_\_\_ \).
4. **Reactions at Support E**:
- \( E_x, E_y \) and moment \( M_E \) about support.
5. **Reactions in Cable to F**:
- Compute the tension resulting from
![**Text Analysis for Educational Purposes**
**Title:** Equilibrium Conditions in Structural Analysis
**Reactions and Equilibrium Equations:**
1. **Reactions on Support E:**
- \(E_x\), \(E_y\), and \(M_E\) for a \(\square\) support.
2. **Reactions in Cable to F:**
- \(\square =\) \(\square\) lb.
3. **Equilibrium Equations:**
1. \(\sum F_x = 0\):
- There are \(\square\) forces in the x-direction, hence \(E_x =\) \(\square\) lb.
2. \(\sum F_y = 0\):
- There are \(\square\) forces in the y-direction, hence \(E_y =\) \(\square\) lb.
3. \(\sum M_E = 0\):
- \(\square \cdot W_{\text{crate}} + \square \cdot W_{ABC} + \square \cdot E_x + \square \cdot E_y + \square \cdot M_E + \square \cdot T = 0\), hence \(M_E =\) \(\square\) kips-ft.
**Explanation of Symbols:**
- \(E_x\), \(E_y\): Reaction forces at support E in the x and y directions, respectively.
- \(M_E\): Moment at support E.
- \(\sum F_x = 0\): Sum of forces in the x-direction equals zero (horizontal equilibrium).
- \(\sum F_y = 0\): Sum of forces in the y-direction equals zero (vertical equilibrium).
- \(\sum M_E = 0\): Sum of moments about point or axis E equals zero (moment equilibrium).
This content would be pertinent to students or professionals studying civil or structural engineering, focusing on the analysis of forces and moments in static systems.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9a42e238-4116-4e80-81a7-f4d567b4bd0e%2F4a7f36cb-3461-44ab-912e-3292187cf7cc%2Fg42wdfi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Text Analysis for Educational Purposes**
**Title:** Equilibrium Conditions in Structural Analysis
**Reactions and Equilibrium Equations:**
1. **Reactions on Support E:**
- \(E_x\), \(E_y\), and \(M_E\) for a \(\square\) support.
2. **Reactions in Cable to F:**
- \(\square =\) \(\square\) lb.
3. **Equilibrium Equations:**
1. \(\sum F_x = 0\):
- There are \(\square\) forces in the x-direction, hence \(E_x =\) \(\square\) lb.
2. \(\sum F_y = 0\):
- There are \(\square\) forces in the y-direction, hence \(E_y =\) \(\square\) lb.
3. \(\sum M_E = 0\):
- \(\square \cdot W_{\text{crate}} + \square \cdot W_{ABC} + \square \cdot E_x + \square \cdot E_y + \square \cdot M_E + \square \cdot T = 0\), hence \(M_E =\) \(\square\) kips-ft.
**Explanation of Symbols:**
- \(E_x\), \(E_y\): Reaction forces at support E in the x and y directions, respectively.
- \(M_E\): Moment at support E.
- \(\sum F_x = 0\): Sum of forces in the x-direction equals zero (horizontal equilibrium).
- \(\sum F_y = 0\): Sum of forces in the y-direction equals zero (vertical equilibrium).
- \(\sum M_E = 0\): Sum of moments about point or axis E equals zero (moment equilibrium).
This content would be pertinent to students or professionals studying civil or structural engineering, focusing on the analysis of forces and moments in static systems.
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