A floor joist consists of a 2" x 10" No. 2 Southern Pine(Fa = 800 psi). The joists are spaced at 24" on center.The beam is subjected to a dead load of 20 lb/ftincluding beam weight and a live load of 60 lb/ft. If thelength of the beam is 14 ft, determine the actual stressdue to the loads on the beam, and if the section isadequate for the loads being carried.

Answered: Image /qna-images/answer/515442d3-3d40-44ec-ac39-4071497bd2e0.jpg

Answered: A floor joist consists of a 2" x 10"…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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For the timber beam and loading shown, determie the safe value of "h" when the allowable bending stress is 10 MPa and allowable shearing stress is 4.5 MPa. Loads are 2.2 kN and 3.6 kN. II i 2.2 KN 36 KN 35 mm 0.8 m 08 m 0.8 m
ELerED HAFTERG 24 20 BEAFING WALL RAFTERG@2fao. -BEAM COLIMN FRAMING PLAN A BEAM -COLUMNS BEABING WALL FRONT ELEVATION SIDE ELEVATION • Live snow load = 25 psf • Dead load: (1) Roof and Sheathing 14 psf, (2) Rafters = 4 lb/ft • Roof pitch: 5:12 Please round to the nearest one tenth (i.e., 0.1). Total load (LL + DL) on a middle rafter after adjusting to horizontal projection = Ib/ft MacBook Air 80 F3 D00 F4 F2 F5 F6 F7 # % & 2 3 5 6 %2 4
a. determine the design moment that the beam will carry in kN-m at the midspan. b. determine the required steel area in mm^2 c. determine the number of 16mm diameter bars
Three Strength Class C16 sawn timber joists are bolted together to create a trimmer beam which supports the first floor of a new house. The top flange of the trimmer joist is laterally restrained. The floor load is the usual dead and imposed in a domestic property. What is the design moment resistance of one of this group of joists? Joist width-60 mm Joist height-212 mm Give your answer to one decimal place in kNm.
All question pertain to the following floor plan. The floor load is 60 lb/ft?. Ignore the self weight of the members. The building is three stories tall. I- I- GZ 20 10! C2 B1 30' 22
Urgent Given the following data for a rectangular beam, b = 320 mm, d = 520 mm, f’c = 27 MPa, fy = 345 MPa.Dead Load Moment = 180 kN-m, Live Load Moment = 167 kN-m. Determine the required tension steelarea. (answer with complete solution) Final answer must be: Mu = 483.2 kN-m, FMnmax = 487.31 kN-m, c = 208.8 mm, As = 3,777 mm2
Floor beams of Group B timber are spaced 1.2 m centres, on a clear span of 3 m, with a bearing of 20 cm at each end. The dead load of roof covering is 2000 N/m' and live load is 1500 N/m?. Design the beam for inside location. The timber is of standard grade. Take E = 11000 N/mm?.
A floor slab 100 mm thick is cast monolithically with beams 250 mm wide 450 mm deep spaced 1.2 m on centers, on simple supports over a span of 5.0 m. The floor supports a service live load of 2.1 kPa. Using f.-21 MPa, rebar strength f, 415 MPa, calculate the following if a typical interior beam is reinforced with 3- 16-mm-dia. flexure bars at the bottom enclosed with 10-mm-dia. stirrups: 1. Nominal moment capacity (kN-m) of a typical interior beam in positive bending considering T-beam geometry. A. 96.66 C. 91.10 Maximum factored uniformly distributed load (kN/m) a typical interior B. 86.99 D. 81.99 2. beam can sustain against positive bending. В. 27.83 с. 26.23 D. 29.15 A. 30.93 3. Maximum service superimposed dead load in kPa. A. 17.73 C. 16.52 B. 11.08 D. 14.77
3. Three 18 mm diameter steel bolts are to be used to attach the steel plate to a wooden beam. The plate has to support a load of 110 KN. The ultimate shearing stress for the steel used is 360 MPa. Determine what will be the factor of safety for this design. HOAN
Current Attempt in Progress A composite beam is fabricated by bolting two 2.4-in.-wide by 10-in.-deep timber planks to the sides of a 0.6-in. by 10-in. steel plate. The moduli of elasticity of the timber and the steel are 1790 ksi and 28300 ksi, respectively. The simply supported beam spans a distance of 18 ft and carries two concentrated loads P, which are applied as shown. Assume LAB = LCD= 4 ft, LBc = 10 ft, b = 2.4 in., d = 10 in. and t = 0.6 in. (a) Determine the maximum bending stresses o,, o, produced in the timber planks and the steel plate if P = 3.4 kips. (b) Assume that the allowable bending stresses of the timber and the steel are 1450 psi and 25000 psi, respectively. Determine the largest acceptable magnitude for concentrated loads P. (You may neglect the weight of the beam in your calculations.) Answers: (a) o, = (b) P= LAB i i B LBC F Lodlod b Cross section C kips. d ksi, o, = LCD D ksi.
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Design a rectangular one-way slab: clear dimensions (4 m x 8 m) to carry a superimposed dead load of 2 kN/m in addition to its own weight and a service live load of 4 kN/m2., The slab is fixed to beams on all edges. Use o 13 for the main & minor steel. Use fe-28 MPa and f,-420 MPa. Show neat and complete sketch (plan & cross section) of your design. Solution: Plan View showing reinforcement details Cross-section in short direction showing reinforcement details

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