Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN: 9781337094740
Author: Segui, William T.
Publisher: Cengage Learning
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Chapter 4, Problem 4.7.4P
Use A992 steel and select a W14 shape for an axially loaded column to meet the following specifications: The length is 22 feet, both ends are pinned, and there is bracing in the weak direction at a point 10 feet from the top. The service dead load is 142 kips, and the service live load is 356 hips.
a. Use LRFD.
b. Use ASD.
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Use A992 steel and select a W14 shape for an axially loaded column to meet the following specifications: The length is 22 feet, both ends are pinned, and there is bracing in the weak direction at a point 10 feet from the top. The service dead load is 142 kips, and the service live load is 356 kips. a. Use LRFD. b. Use ASD.
A W21 3 68 of A992 steel is used as a simply supported beam with a span length of 50 feet. The only load in addition to the beam weight is a uniform live load. If lateral support is provided at 10-foot intervals, what is the maximum service live load, in kipsyft, that can be supported? a. Use LRFD. b. Use ASD.
A W12x79 of A573 Grade 60 (Fy = 415 MPa) steel is used as a compression member. It is 8 m long, pinned at the top fixed at bottom. The properties are as follows: Ag = 14,968 sq.mm. rx= 133.65 mm, Ty = 77.47 mm
Calculate the critical slenderness ratio if there is an additional lateral support in the weak direction at mid-height.
If the columns sustains a service axial live load of 990 kN calculate the safe service axial dead load in kN by URFD.
Calculate the allowable axial strength (kN) by ASD
Calculate the allowable axial strength (kN) by ASD
Calculate the design axial strength (kN) of the colurn by LRFD.
Chapter 4 Solutions
Steel Design (Activate Learning with these NEW titles from Engineering!)
Ch. 4 - Prob. 4.3.1PCh. 4 - Prob. 4.3.2PCh. 4 - Prob. 4.3.3PCh. 4 - Prob. 4.3.4PCh. 4 - Prob. 4.3.5PCh. 4 - Prob. 4.3.6PCh. 4 - Prob. 4.3.7PCh. 4 - Prob. 4.3.8PCh. 4 - Prob. 4.4.1PCh. 4 - Prob. 4.4.2P
Ch. 4 - Prob. 4.6.1PCh. 4 - Prob. 4.6.2PCh. 4 - Prob. 4.6.3PCh. 4 - Prob. 4.6.4PCh. 4 - Prob. 4.6.5PCh. 4 - Prob. 4.6.6PCh. 4 - Prob. 4.6.7PCh. 4 - Prob. 4.6.8PCh. 4 - Prob. 4.6.9PCh. 4 - Prob. 4.7.1PCh. 4 - Prob. 4.7.2PCh. 4 - Prob. 4.7.3PCh. 4 - Use A992 steel and select a W14 shape for an...Ch. 4 - Prob. 4.7.5PCh. 4 - Prob. 4.7.6PCh. 4 - Prob. 4.7.7PCh. 4 - The frame shown in Figure P4.7-8 is unbraced, and...Ch. 4 - Prob. 4.7.9PCh. 4 - Prob. 4.7.10PCh. 4 - Prob. 4.7.11PCh. 4 - Prob. 4.7.12PCh. 4 - Prob. 4.7.13PCh. 4 - Prob. 4.7.14PCh. 4 - Prob. 4.8.1PCh. 4 - Prob. 4.8.2PCh. 4 - Prob. 4.8.3PCh. 4 - Prob. 4.8.4PCh. 4 - Prob. 4.9.1PCh. 4 - Prob. 4.9.2PCh. 4 - Prob. 4.9.3PCh. 4 - Prob. 4.9.4PCh. 4 - Prob. 4.9.5PCh. 4 - Prob. 4.9.6PCh. 4 - Prob. 4.9.7PCh. 4 - Prob. 4.9.8PCh. 4 - Prob. 4.9.9PCh. 4 - Prob. 4.9.10PCh. 4 - Prob. 4.9.11PCh. 4 - Prob. 4.9.12P
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- If the beam in Problem 5.5-9 i5 braced at A, B, and C, compute for the unbr Cb aced length AC (same as Cb for unbraced length CB). Do not include the beam weight in the loading. a. Use the unfactored service loads. b. Use factored loads.arrow_forward1.Select a W12 of A992 steel. Use the column load tables. Use LRFD.2. For the conditions shown in Figure, use LRFD and select a W10 of A992 steel. Use LRFD.arrow_forwardThe given frame is unbraced, and bending is about the x axis of each member. The axial dead load supported by column AB is 204 kips, and the axial live load is 408 kips. Fy = 50 ksi. Determine Kx for member AB. Use the stiffness reduction factor if possible. a. Use LRFD. b. Use ASDarrow_forward
- Design the most economical A36 steel base plate to resist a dead load = 1,400 kN and a live load = 1,700 kN. The column is supported by a 700 mm x 700 mm concrete pedestal with fc' = 27 MPa. The column section used is W14x500.arrow_forwardUse A992 steel and select a W12 shape for an axially loaded column to meet the following specifications: The length is 24 feet, both ends are pinned, and there is bracing in theweak direction at a point 10 feet from the top. The service dead load is 142 kips, and the service live load is 356 kips. a. Use LRFDarrow_forwardUsing LRFD select the lightest W 14 section to carry a service load P of 100 kips dead load and 400 kips live load. The compression load acts with an eccentricity of 12-inches with respect to the strong axis. Use A992 steel (Fy = 50 ksi). Take the unbraced length to be L. This beam-column is part of a braced frame (BF) system. Please determine Cb and use it. Take Cm = 1.0. Since this can involve many iterations, start the problem by selecting a column meant to resist an ‘equivalent’ axial load of Pu plus 140% of the Mu. (use kips as the unit for Mu). I.E.: Pu,eq = Pu + 1.4*Mu (gives result in kips). Also, note that regardless of the results of this first attempt, the beam-column must meet the AISC criteria of H1-1a or H1-1b as usual. Note: This ‘equivalent’ method was first published in the AISC Engineering Journal by Uang, Watter, and Leet.arrow_forward
- Read the question carefully and give me right solution according to the question. A W12x79 of A573 Grade 60 (Fy=415 MPa) steel is used as a compression member. It is 8 m long, pinned at the top fixed at the bottom, and has additional support in the weak direction at mid-height. Properties of the section are as follows: A = 14,500 mm^2 Ix = 258.6 x 10^6 mm^4 Iy = 84.375 x 10^6 mm^4 Calculate the effective slenderness ratio with respect to strong axis buckling using theoretical value of k.arrow_forwardSelect the best rectangular (not square) HSS for a column to support a service dead load of 33 kips and a service live load of 82 kips. The member is 27 feet long and is pinned at the ends. It is supported in the weak direction at a point 12 feet from the top. Use Fy 5 46 ksi. a. Use LRFD. b. Use ASD.arrow_forwardThe beam shown in Figure is a W16 x 31 of A992 steel. It supports a reinforced concrete floor slab that provides continuous lateral support of the compression flange. The service dead load is 450 /byft. This load is superimposed on the beam; it does not include the weight of the beam itself. The service live load is 550 lby/ft. Does this beam have adequate moment strength?arrow_forward
- A W 360 x 744 is used as a beam to support a concrete floor system. The floor is to carry atotal load of 250 kPa. The beam is simply supported over a span of 6 m. Assume the beamis laterally supported over its length. Use A36 steel with Fy = 250 MPa. Allowabledeflection is L/360.a. Determine the center to center spacing of the beams without exceeding the allowableshear stress.b. Determine the center to center spacing of the beams without exceeding the allowablebending stress.c. Determine the center to center spacing of the beams without exceeding the allowabledeflection.arrow_forwardUse A992 steel and select a W shape for the following beam: Simply supported with a30-foot span, lateral support at each end and at the third-points, no service deadload, service LLis a 18-kips concentrated load at midspan. Don’t forget to check with self-weight (note: you donot need to worry about self-weight in calculating Cb). Assume that the middle third of the beamis the critical section. Assume that the live load deflection is limited to L/240. Please also checkfor bending capacity and shear capacity. You may use AISC Table 3-2 and/or Table 3-10 to checkfor bending and shear. Solve using LRFD only.arrow_forwardCheck the adequacy of the column shown in red colour with the 200UC59.5 section. The material is 300 Plus. Dead and live loads for all floors are the same as shown in Figure 1. All the support conditions are shown in the Figure. For bending about the minor axis, y, there is an intermediate secondary member that prevents its buckling and the column is simply supported. In case of buckling about the major axis, x, there is no intermediate lateral support and the column is pinned at the top and fixed at the bottom.arrow_forward
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