Select the lightest W for a column subjected to an axial compression load of 1000 kips. The unbraced length of the column is 10 ft and the ends are fixed. Use steel A 36, compressive allowable stress and AISC specification.
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- Determine whether the D = 560 kips L = 68 kips compression member shown is adequate to support the given service loads. Take note Pu = 1.4D. 20' W12 x 79 K = 0.80, r= 3.05 in E = 29000 ksi, Fy = 50 ksi A992 steel Input Yes or No for your final answer. Note: Ag = 23.2 in^2... Determine whether the D = 560 kips L = 68 kips compression member shown is adequate to support the given service loads. Take note Pu = 1.4D. 20' W12 × 79 K= 0.80, r= 3.05 in E = 29000 ksi, Fy = 50 ksi %3D A992 steel %3D Input Yes or No for your final answer. Note: Ag = 23.2 in^2 Blank 1 Blank 1 Add your answerThe compression member shown is made of HE300B section. If Fy is equal to 320 MPa:a) Check the section for local buckling. b) Determine the maximum compressive service load that can be supported if the live load is twice as large as the dead load.
- 1) Column AB is made of solid 410, cold worked Steel with the following specification Sy=85 KSI, E-29000 KSI Length: 9.5 in. Diameter: 425 in. Ends: Free & Fixed For the above column calculate: a) Type of column failure (show proof) b) The critical load that would cause failure. c) Allowable force with Factor of Safety of 2.5. Answer Unit Value a 13 14 14Determine the maximum axial compression service load that can be supported by the column shown in Figure 1 if the service live load is 3 times bigger than the service dead load. Check that HSS 8x4x4 is a nonslender-element cross section and then use ACI Equations E3-2 or E3-3. 12 feet TMM HSS 8 X 4 X ¹/4 ASTM A500 Grade B Figure 1Determine whether the D = 560 kips L = 68 kips compression member shown is adequate to support the given service loads. Take note Pu = 1.4D. 20' W12 × 79 K = 0.80, r = 3.05 in E = 29000 ksi, Fy = 50 ksi A992 steel Input Yes or No for your final answer.
- • AW 310 x 118 section with a length of 8.0 m is used as a column. Determine the safe axial load the column can carry using AISC specifications with Fy = 345 MPa when: a) column ends are fixed b) one end of the column is fixed; the other free Properties of W 310 x 118 A = 15000 mm² rx = 136 mm ry = 77.6 mm CIVIL ENGINEERING- STEEL DESIGNThe uniform aluminum bar AB has a 20 x36-mm rectangular cross section and is supported by pins and brackets as shown. Each end of the bar may rotate freely about a horizontal axis through the pin, but rotation about a vertical axis is prevented by the brackets. Using E= 70 GPa, determine the allowable centric load P if a factor of safety of 2.5 is requiredA column in a building is subjected to the following load effects: 9 kips compression from dead load 5 kips compression from roof live load 6 kips compression from snow 7 kips compression from 3 inches of rain accumulated on the roof 8 kips compression from wind a. If lead and resistance factor design is used, determine the factored load (required strength) to be used in the design of the column. Which AISC load combination controls? b. What is the required design strength of the Column? c. What is the required nominal strength of the column for a resistance factor of 0.90? d. If allowable strength design is used, determine the required load capacity (required strength) to be used in the design of the column. Which AISC load combination controls? e. What is the required nominal strength of the column for a safety factor of 1.67?
- A beam must be designed to the following specifications: Span length = 35 ft Beam spacing = 10 ft 2-in. deck with 3 in. of lightweight concrete fill (wc=115 pcf) for a total depth of t=5 in. Total weight of deck and slab = 51 psf Construction load = 20 psf Partition load = 20 psf Miscellaneous dead load = 10 psf Live load = 80 psf Fy=50 ksi, fc=4 ksi Assume continuous lateral support and use LRFD. a. Design a noncomposite beam. Compute the total deflection (there is no limit to be checked). b. Design a composite beam and specify the size and number of stud anchors required. Assume one stud at each beam location. Compute the maximum total deflection as follows: 1. Use the transformed section. 2. Use the lower-bound moment of inertia.Determine whether the D = 560 kips L = 68 kips compression member shown is adequate to support the given service loads. Take note Pu = 1.4D. 20' W12 × 79 K = 0.80, r = 3.05 in E = 29000 ksi, Fy = 50 ksi %3D A992 steel Input Yes or No for your final answer. Blank 1 Blank 1 Add your answerProblem 1.A compression member is 30 feet long. It is made up of ASTM A500 Grade B (Fy= 46 ksi and Fu = 58 ksi) rectangular HSS 12x8x3/16. Assume k-value equals to 1.0 and Q= 1.0 . If the member carries an axial load composed of 26 kips dead load and 77 kips live load, is the member adequate? Use E=29000 ksi. a. Solve for the gross area.b. Compute for the design strength against squash load.c. Solve for the moment of inertia and radius of gyration for both axes. (X-X and Y-Y)d. Compute for the design strength against global buckling.e. Solve for kL/rfor both axes.(X-X and Y-Y)f. Solve for Fcr.g. Solve for design strength against local buckling.Check first if Local Buckling is applicable.h. Compute for the ultimate load to be carried by the member. Use LRFDLoad Combination.i. Does this member have enough strength? Why or why not?