Solve Physics Problem with Crane Sling Tension Calculations

In summary, the conversation is about a physics problem involving a tower crane and a concrete slab. The problem asks for the calculation of various values such as the load in kN, tension in each vertical cable, load on the tower and foundation, load moment, work done, and energy released. The problem also mentions the advantages of using a movable pulley above the load being lifted, as shown in the provided photo.
  • #1
real hero
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crane sling tension...

Here i am stucked with some problems in physics.could you please help me to solve the below problem

0fcf3c1d.jpg



from the photo of the tower crane,if the crane is to lift a concrete slab with dimension of 250mm,3400mm,6000mm calculate the.



1.load in kN that thecrane is carrying

2.tension in each of the verticle cable

3.load acting on the tower of the crane

4.pressure acting on the foundation of the crane

5.moment of force(load moment)acting on the foundation of the crane

6.work done if the concrete is moved over a distance of 50 ft

7.energy that released when the concrete slab fall on to the ground,if the vertical cable failed when the load was at a height of 20 m

8.based on the photo of tower crane explain the advantages of the movable pulley above the load that is being lifted..

for the crane diomension you can use any crane diomension getting from internet...
 
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[PLAIN][URL]http://i971.photobucket.com/albums/ae192/sajeeshsalim/0fcf3c1d.jpg[/PLAIN][/URL]
 
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1. How do you calculate the tension in a crane sling?

To calculate the tension in a crane sling, you can use the formula T = (W x L)/2, where T is the tension, W is the weight of the load, and L is the length of the sling. This formula assumes that the sling is evenly distributing the weight of the load.

2. What factors affect the tension in a crane sling?

The tension in a crane sling is affected by several factors, including the weight of the load, the length of the sling, and the angle at which the sling is supporting the load. Other factors that may affect tension include the condition of the sling and the presence of any knots or twists in the sling.

3. How does the angle of the sling affect the tension calculation?

The angle of the sling can have a significant impact on the tension calculation. As the angle increases, the tension in the sling increases as well. This is because the weight of the load is being distributed over a smaller area, resulting in a higher force on the sling.

4. What safety precautions should be taken when calculating sling tension?

It is important to take several safety precautions when calculating sling tension. This includes ensuring that the sling is in good condition and free of any damage or wear, using the correct formula for tension calculation, and double-checking all calculations to avoid any errors. It is also important to follow all safety guidelines and regulations set by the manufacturer and industry standards.

5. Can I use the same formula for all types of crane slings?

The T = (W x L)/2 formula is commonly used for calculating the tension in a crane sling, but it is important to note that this formula may not be suitable for all types of slings. Different types of slings may have different weight distribution patterns, and this should be taken into consideration when calculating tension. It is best to consult the manufacturer's guidelines or seek guidance from a qualified engineer for specific sling types.

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