A simply supported beam with a span length of 40 ft. carries two equal concentra
ID: 1866451 • Letter: A
Question
A simply supported beam with a span length of 40 ft. carries two equal concentrated service live loads of 20, 40, and 20 kips at every 10 ft (quarter point) as shown. If lateral support is provided at both ends and at the load points determine the lightest w sections of a 992 steel that carry these applied loads. Neglect the weight of the beam when calculating C.
***Need this answered ASAP please***
***Please show ALLsteps***
A simply supported beam with a span length of 40 ft carries concentrated service live Problem 1 loads of 20, 40, and 20 kips at every 10 ft (quarter point) as shown. If lateral support is provi ends and at the load points, determine the lightest W section of A 992 steel that carry these applied loads. Neglect the weight of the beam when calculate C (30 points) PB- 300 40 20 20 I0 10 lo P 300 P 600Explanation / Answer
The highest bending moment in the beam will be at the midspan
service moment in beam at midspan due to live load = (20*10)+(40*40/4)=600 kip-ft
design moment at midspan of beam = 600*1.6=960 kip-ft
unbraced length of beam = 10 feet
Therefore, the loghtest beam that has bending capacity gtreater than 960 kip-ft for unbraced length of 10 feet is W30x90
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.