Select the least-weight W8 A992 column to carry a dead load of 20 kips and a live load of 50 kips with an effective length about both axes of 25 ft by LRFD and ASD b- if the effective length is 32 ft, select the lightest-weight W12 to support the load by LRFD
Q: PROBLEM 2 How much service live load, in kN/m, can be supported? The member weight is the only dead…
A: "Since you have asked to solve this numerical by two method. We will solve this numerical problem…
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A: Solution Properties of 2L4x3x38 A=2.49 in2x=0.775 inY¯=1.27 inIx=3.94 in2Iy=1.89 in4
Q: A built up l-section has a total unsupported length of 6m. It is made up of 2 - 400mm x 12mm plates…
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Q: Use 2015 NSCP A simply supported beam is subjected to a uniform service dead load of 1.0…
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Q: A simple T-beam with bf-600mm h-500mm hf-100mm, bw-300mm with a span of 3m, reinforced by 5-20mm…
A: HI! Thank you for the question. As per the honor code. We’ll answer the first question since the…
Q: How much service live load, in kN/m, can be supported?
A: Given data: Service dead load = 45 kN Service live load = 90 kN Gross area, Ag = 18400 mm2 Radius of…
Q: A built up l-section has a total unsupported length of 6m. It is made up of 2 - 400mm * 12mm plates…
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Q: 03) The beam shown in the figure below has continuous lateral support of both flanges. The uniform…
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Q: Check the adequacy of column AB for applied live load. Fy= 350M
A: fy = 350 MPaCompression member:W 360 x 51A = 6450 mm2 rx = 148 mmry = 38.8 mmd = 355 mmb = 171 mmt =…
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Q: he cantilever beam shown is a W10 × 77 of A992 steel. There is no lateral support other than at the…
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Q: P3: A simply supported beam has a span of 6 m. If the cross section of the beam is as shown below,…
A: Solution: Given: d = 400 mm b= 230 mm fc = 35 MPa fy = 420 MPa L = 6 m Area of steel Ast=3×π4×322 =…
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Q: Check the adequacy of column AB for applied live load. Fy= 350Mpa W360x51: A= 6450mm2 rx= 148mm ry=…
A: Given: fy = 350 MPa Compression member: W 360 x 51 A = 6450 mm2 rx = 148 mm ry = 38.8 mm d = 355 mm…
Q: 2. A steel column 10 m long is fabricated from W section and a cover plate. Determine the safe axial…
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Q: 5-11. A W10×39 with a 1/2 × 10 in cover plate welded to each flange is to be used for a column with…
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Q: : Design a T-beam having cross section shown in figure below according to ACI code requirement. The…
A: Service dead load = 48.8 KN/mService live load = 25 KN/mBeam span = 7.31 mf'c =21 Mpafy = 414 Mpabf…
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Q: A W36x210 can be used for Transfer Girder ‘A’ as shown in the elevation next page. Assume the LRFD…
A: a) Factored concentrated load on beam = 200 kips factored uniform load on beam = 2 kip/ft span of…
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Q: How much service live load, in kN/m, can be supported? The member weight is the only dead load. The…
A: Given: Compressive load: DL = 45 kN LL = 90 kN Span, L = 6.2 m Section: W 460 x 144
Q: Use NSCP 2015. The beam shown has continuous lateral support of both flanges. The uniform load…
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Q: -17. A 24 ft axially loaded W12 x 96 column that has the bracing and end support condi- tions shown…
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Q: Determine the maximum live load P that the beam can carry. Use plastic analysis and LRFD provisions.…
A: Solution:
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- A W36x210 can be used for Transfer Girder ‘A’ as shown in the elevation next page.Assume the LRFD loads on the ‘Transfer Girder’ are as follows:Pu= 200 kips from the column above. Assume also that the loads from self-weight of thewu = 2.0 kip/ft (girder self weight and beams framing into this transfer girder are equivalentto a uniformly distributed load). These loads are shown in the last figure.a) Check whether the W36x210 ‘Transfer Girder’ is adequate for bending and shear.Assume the unbraced length Lb =20 ft.b) Suppose that service loads, w and P, are both 50% dead load and 50% live load. Does theW36x210 satisfy a service live load deflection limit of L/480?STEEL DESIGN PROBLEM: USE AISC MANUAL AND NSCP 2015 FOR REFERENCE. The beams on a terrace are to be designed uniformly at the critical section. After running an analysis, the critical section carries a deadload of 100 kN-m (rounded off to include weight of the beam) and a liveload of 140 KN-m. The beam conditions must be decided. (Consider Flexure ONLY) 1. Design a W14 I-Section whose unbraced length is 9 meters and Cb = 1.0. In designing, limit your Mu/Mcap between 80% to 90% to consider economical value. 2. What if the beam is to braced at the first third point only, Cb=1.0? Determine the ultimate moment capacity of this particular beam. 3. What if the beam is continuously braced wherein Lb=0? Determine the ultimate moment capacity of this particular beam.P3: A simply supported beam has a span of 6 m. If the cross section of the beam is as shown below, f. = 35 MPa, and fy = 420 MPa, determine the allowable uniformly distributed service live load on the beam. "5 min 2-20 F om 400 mm MED 3-32 1-2 250 mm
- How much service live load, in kN/m, can be supported? The member weight is the only dead load. The axial compressive load consists of a service dead load of 45 kN 6.2m and a service live load of 90 kN. Do not consider moment amplification. Use NSCP 2015. W460x144 а. LRFD. b. ASD. bf Sy Z,J wt A tw Ix Sx Ty Zx Cw SECTION kN/m mm? mm mm*| mm3 mm mm mm| mm mm3 mm3 mm mm mm mm mm W460x144 1.41 18400 472 13.6 283 22.2 | 726 3080 199 83.6 | 591 67.4 3450 906 2440 4230Q-An RC square column of size 600 mm is constructed to carry an unfactored load of 3000 kN. The ends of the column are restrained from displacement but free to rotate and is casted with M-25 concrete. The area of Fe-415 steel required to carry the given load considering that the column is short and loaded with minimum eccentricity isPROBLEM 2 How much service live load, in kN/m, can be supported? The member weight is the only dead load. The axial compressive load consists of a service dead load of 45 kN 6.2m and a service live load of 90 kN. Do not consider moment amplification. Use NSCP 2015. W460x144 а. LRFD. b. ASD. d bf Sy wt A tw Sx rx ly ry Zx Zy J Cw SECTION kN/m mm? mm mm mm*| mm3 mm* | mm3 mm3 mm3 mm4 mm mm mm mm mm W460x144 1.41 18400 472 13.6 283 22.2 726 3080 199 83.6 591 67.4 3450 906 2440 4230
- Use NSCP 2015. The beam shown has continuous lateral support of both flanges. The uniform load consisting of 50% dead load and 50% live load. The dead load includes the weight of the beam. Used grade 50 steel. 6 k/ft |--0-0²- -18'-0"- fo 4-6- -6'-0" 1. Considering LRFD. Which of the following most nearly gives the design load Wu? 2. Considering LRFD. Which of the following most nearly gives the maximum negative design moment, Mu in ft-kips? 3. Considering W12x35 beam section, The section is 4. Considering ASD the W12x35 beam section, Which of the following most nearly gives allowable strength in ft-kipsQuestion 9 A simple T-beam with bf-600mm h-500mm hf-100mm, bw-300mm with a span of 3m, reinforced by 5-20mm diameter rebar for tension, 2-20mm diameter rebar for compression is to carry a uniform dead load of 20kN/m and uniform live load of 10kN/m. Assuming fe'-21Mpa, fy-415Mpa, d'-60mm, cc-40m and stirrups-10mm, Calculate the cracking moment: Question 10 A concrete one-way slab has a total thickness of 120 mm. The slab will be reinforced with 12-mm-diameter bars with fy - 275 MPa, fc-21 MPa. Determine the area of rebar in mm'if the total factored moment acting on 1-m width of slab is 23 kN-m width of slab is 23 kN-m. Clear concrete cover is 20 mm.5-17. A 24 ft axially loaded W12 x 96 column that has the bracing and end support condi- tions shown in the figure. 10 ft Determine: a.) LFRD design strength b.) ASD allowable strength 24 ft 14 ft х-х ахis У-у ахis FIGURE P5-17
- 57 : Design a T-beam having cross section shown in figure below according to ACI code requirement. The beam is simply supported on span 1914 of (7.31m), The is subjected to service dead load (48.80 kN/mm) (including self-weight), and service live load (25 kN.m), Assume the designer intends dnes to use: fe-21 MPa, fy=414 MPa and bf= 1 m. Use two layer of reinforcement) at lan COSM 0.09mm RÝM OC ¹0.3 m² 1000 -0.55 mThe cantilever beam shown is aW10 × 77 of A992 steel. There is no lateral supportother than at the fixed end. Use an unbracedlength equal to the span length and determinewhether the beam is adequate. The uniform load isa service dead load that includes the beam weight,and the concentrated load is a service live load.A built up l-section has a total unsupported length of 6m. It is made up of 2 - 400mm x 12mm plates as flanges and 450mm x 12 mm plate as web. The plates are of Grade 40 steel (fy = 276MPa). Considering the local buckling of the stiffened and unstiffened slender elements, determine the ultimate axial load capacity of the built-up column for both LRFD and ASD. Use NSCP 2015 Specification and effective length factor k = 1.0. Properties of the built-up section: A = 15,000 mm² ly = 128.06 x 106 mm4 Ix = 6.035 x 108 mm4 rx = 200.58 mm ry = 92.40 mm What is the Slenderness Ratio? KL/r Using LRFD, what is the ultimate load capacity of the column? Express your answer in KN Using ASD, what is the allowable load capacity of the column? Express your answer in KN