Calculate the tension force in sling - lifting load, Civil Engineering

Calculate the Tension Force in Sling

The rigging configuration shown below will be used to lift a bridge girder using a 200-ton capacity luffing jib crane onto the foundation abutment.  The tension force (lb.) in Sling A is most nearly:

852_Calculate the Tension Force in Sling.png

Solution:

By inspection, the center of gravity of the load is offset causing an eccentric load condition.  The reaction load is heavier on the left side (RL).  The distribution of the 40,000-lbs load at RL is:   (40-ft ÷ 60-ft) (40,000-lbs) = 26,667-lbs.  The reaction force RL must be adjusted for the slope of the slings.  The vector force length of Sling A is √ 602 + 202 = 63.25-ft.  The force in Sling A is (63.25-ft ÷ 60-ft) (26,667-lbs) = 28,111-lbs

Posted Date: 5/29/2013 7:55:27 AM | Location : United States







Related Discussions:- Calculate the tension force in sling - lifting load, Assignment Help, Ask Question on Calculate the tension force in sling - lifting load, Get Answer, Expert's Help, Calculate the tension force in sling - lifting load Discussions

Write discussion on Calculate the tension force in sling - lifting load
Your posts are moderated
Related Questions
Elaborate the term - Prestressed concrete pipes Liquid retaining structures, such as circular pipes, tanks and pressure vessels are suited for circular prestressing. The circum

design a tension member subjected to a pull of 300KN using a channel section. the length of a joint available is only 400mm.check the condition of using lug angle for end connecti


Please tel me about Timber Defected

how to compute the compound elements particularly outstanding element of compression flange if 2-ismb300 are placed side by side

Q. What do you mean by Scour? Whenever a bridge crosses a waterway, even a small or intermittent one, scour is a dangerous effect that can damage bridge piers and undermine fou

JETTIES: A jetty is a structure projecting into the sea from the shore line for receiving ships. They are made of RCC trestles with a deck to accommodate railway track and roa

tupes of dam

In designing of elastomeric bearings, why are steel plates inserted inside Bearings?

A certain soil has 99% by weight finer than 1 mm, 80% finer than 0.1 mm, 25% finer than 0.01 mm, 8% finer than 0.001 mm. Draw the grain-size distribution curve and determine the pe