The W27x84 beam shown in the figure is 50 ft long, simply supported and has no laterall bracing between supports. It has a factored uniform load wu = 2.54 k/ft. including self weight. The beam, as is, does not satisfy bending strength requirements (i.e. phiMn < Mu) and needs additional bracing along the beam. (i.e. Lb needs to be reduced from Lb = 50 ft to an acceptable value that makes the beam works in bending). Using the beam design plots/graphs, the minimum number of brace points N needed within the beam is equal to:

The W27x84 beam shown in the figure is 50 ft long, simply supported and has no laterall bracing between supports. It has a factored uniform load wu = 2.54 k/ft. including self weight. The beam, as is, does not satisfy bending strength requirements (i.e. phiMn < Mu) and needs additional bracing along the beam. (i.e. Lb needs to be reduced from Lb = 50 ft to an acceptable value that makes the beam works in bending). Using the beam design plots/graphs, the minimum number of brace points N needed within the beam is equal to:

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

For simply supported beam with rectangular cross section shown, determine the values and location of the maximum tensile and compressive bending stresses y 1000 lb 400 lb/ft k 6 in D 8 in 10 ft Rp-
A WT305 × 41 standard steel shape is used to support the loads shown. Assume w = 50 kN/m, LAB = 1.4 m, LBC = 2.8 m, and LCD = 1.4 m. Consider the entire 5.6 m length of the beam and determine:(a) the maximum tensile bending stress at any location along the beam (enter a positive answer), and(b) the maximum compressive bending stress at any location along the beam (enter a negative answer).
Solve the problem with diagrams and figures in the solution.
Q.10 For an I-beam, shape factor is 1.12. The factor of safety in bending is 1.5. If the allowable stress is increased by 20% for wind and earthquake loads, then the load factor is ㅓ ch
The beam shown will be constructed from a standard steel W-shape using an allowable bending stress of 14.7 ksi. Assume P = 39 kips, L₁= 2.1 ft, and L₂ = 6.3 ft. (a) Determine the minimum section modulus required for this beam. (b) From the table below, select the lightest W shape that can be used for this beam. (c) What is the total weight of the steel beam itself (i.e., not including the loads that are carried by the beam)? Designation X Wide-lange Sections or W Shapes-U.S. Customary Units Wich thes f Flange Flatar thickness with by 4 24 x 36 24 x 24 x 55 21 x M 21 x 50 21 x 44 W18 x 55 18 x 50 18 x 40 18 x 35 lb 16 x 50 16 x 40 16 x 11 W 14x 14 x 53 14x48 14 x 34 14 x 30 14 x 21 26 14 x 22 in.³ 3 (b) W i L₁ (c) W = i Area Depa Dep d in.³ In. 27.7 24.3 0515 0-40 11.4 20.1 Answer: | B 200 18.3 34.7 (a) Smin = i 25.9 23,7 21.J 21.0 213 13.0 2017 16.2 181 14.7 180 11.3 17.9 0315 10.3 17.3 0300 0413 0.395 0:400 WAN 16.8 0-430 34.7 0.390 11.4 0305 9.13 159 0.275 200 0415 નાક 140 15.6 13.9…
(3) 24 B Bean AB A Beam AB. 301 G 4#8 12" 24' -#4 24" Given fé= 3 ksi Grade 60 steel NWC. COVER = 1.5" #4 stirrups. DL= 70 psf, not including self-weight. LL = 40 psf. (No Live Load 4 # 8. b=12", h=24", Reduction
The beam shown will be constructed from a standard steel W-shape using an allowable bending stress of 64.5 ksi. Assume P=66 kips, L1=6.1 ft, and L2=18.3 ft. (a) Determine the minimum section modulus required for this beam. (b) From the table below, select the lightest W shape that can be used for this beam (c) What is the total weight of the steel beam itself (l.e. not including the loads that are carried by the beam)?
A composite beam spans a distance of L= 12 ft and is fabricated by adhering two wooden boards (b= 2 in., d= 8 in. and E = 1,500 ksi) to the sides of a steel plate (t = 0.4 in., d = 8 in. and E= 30,000 ksi). 400 lb 400 Ib 200 lb/ft d -3 ft- 3 ft V (lb) -6ft 600 400 (ft) 12 -400 -600 1. For the given loading condition, determine the maximum normal stress M (lb-ft) in the steel plate. A) 3,850 psi +x (ft) B) 1,550 psi -300 C) 2,250 psi D) 4,200 psi -1200 - 1200 E) None of the Above 2. If the allowable normal stress of the steel is 9,000 psi and the 200 lb/ft distributed load remians constant, determine the largest acceptable concentrated load on each end. A) 1,600 lb B) 2,325 lb C) 935 lb D) 860 lb E) None of the Above
Please answer this problem step by step and explain each diragram below and what each one represents
W X1 X2 L For the beam shown above with total length L = 10 m with a cantilever of length X2 = 3 m and a back-span length X1 = 7 m subjected to a uniformly distributed load of w = 2 kN/m, what is the magnitude of the maximum bending stress experienced by the beam if the cross section has the dimensions shown below: b = 75 mm d = 100 mm tf = 13 mm tw = 15 mm b tw * y_bar tf
The beam shown will be constructed from a standard steel W-shape using an allowable bending stress of 20.5 ksi. Assume P = 32 kips, L1 = 2.4 ft, and L2 = 7.2 ft.(a) Determine the minimum section modulus required for this beam.(b) From the table below, select the lightest W shape that can be used for this beam.(c) What is the total weight of the steel beam itself (i.e., not including the loads that are carried by the beam)?
Find the FD FG GD GE HG HF