An ASTM A992 W-shaped column is used to carry an axial dead load of 140 kips and a live load of 420 kips. The column is 30 ft long and is pinned at the top and fixed at the bottom. Limit the size to a nominal 14-in shape. Assume the column is laterally braced at the midpoint about the y-axis. Use LRFD. What is the governing slenderness ratio of the chosen W-shaped column? Select one: a. 50.81 b. 48.65 c. 34.05 d. 72.58

An ASTM A992 W-shaped column is used to carry an axial dead load of 140 kips and a live load of 420 kips. The column is 30 ft long and is pinned at the top and fixed at the bottom. Limit the size to a nominal 14-in shape. Assume the column is laterally braced at the midpoint about the y-axis. Use LRFD. What is the governing slenderness ratio of the chosen W-shaped column? Select one: a. 50.81 b. 48.65 c. 34.05 d. 72.58

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter2: Concepts In Structural Steel Design

Section: Chapter Questions

Problem 2.1P: A column in a building is subjected to the following load effects: 9 kips compression from dead load...

See similar textbooks

Similar questions

AW 18 x 97 column is shown below. The column is made up of ASTM A992 steel. It is braced on its weak axis at distances 2m and 4m measured from the bottom support. (a) Determine its critical slenderness ratio. (b) Is the column section compact or slender? Does this column section satisfy the conditions for Section 505.3 of 2015 NSCP Vol. 1 to be used? (c) Determine the design capacity of the column. Use ASD specifications. (d) Considering that LL/DL = 3.0, determine the maximum permissible total service load that should be applied to the column for it not to fail. 000 000 000 0009
A 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?
• 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 DESIGN
A column is constructed using a circular steel tube filled with concrete. The properties are listed below. Please find: 1. The maximum allowable axial force, P 2. Shortening (in inches) of a 12 ft column with this cross-section when P is applied 3. The strain in the steel when P is applied Table 1- Column Details OD E fs, allow 18 in. 29000 ksi 27 ksi ID Ec fc, allow 17.5 in. 3600 ksi 3 ksi
Problem 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?
Q # 2. Design an interior span slab of a concrete floor system with the following description: Span = 10 m Imposed dead load= 766 N/m² Live load= 4788 N/m? fc'= 27.58 MPa fy = 413.64 MPa (CLO2-C5/PLO3) (15)
Determine whether the compression member shown in the figure is adequate to support the given service loads. Use LRFD and ASD. Use load combination 1.2D + 1.6L for LRFD.
A rectangular tied braced column is reinforced with 6-28mm bars as shown in the figure below. Check the adequacy of the column for the following gravity loads: - - - - - - Service dead load = 1050kN Service live load = 850 kN Service dead load moment = 39 kN-m Service live load moment = 27 kN-m top=bott. = 1.0 40 lu = 5.0m f = 27.6 N/mm², fy = 414 N/mm² axis of bending 500mm Ties 10mm@300c/c } 350mm At eccentricity of 40mm P M +40 + 500mm MU +40- P Top end Bott. end
An ASTM A36 (Fy=36ksi) wide flange column has a length of 16.7feet and fixed ends. If rx=4.37in, ry=1.4in, A=7.02in2, E=29000 ksi, calculate the design compressive strength in Kips of the column. Express your answer in one decimal place.
PROBLEM: Consider the cross section shown. All structural steel is A992. Use LRFD and ASD method and NSCP(AISC) specifications. DETERMINE THE FOLLOWING: 1. Determine the governing effective length 2. Determine the minor and major axis 3. Determine the governing slendeness ratio. 4. Determine the design capacity of the column using LRFD method. 5. Determine the minimum service live load that the column can support if the live load is thrice the dead load. (Consider LRFD only) -2-C8x18.75 C8x 18.75 3,555 mm? bf = 64.2 mm tf = 9.9 mm tw= 12.4 mm d = 203.2 mm = 14.35 mm x = 18.31 x10 mm ly = 0.82 x10 mm MINOR AXIS МА OR AXIS CONDITIONS OF LATERAL BRACINGS AND END SUPPORTS
A simply supported beam shown is to support a total dead load 35 kN/m. Determine the live load that the beam can resist in accordance with the requirements of the NSCP 2015. Use fc'=35 MPa and Grade 60 (fy=414 MPa) rebars. The reinforcements shown are 5-36 mm diameter bars.
Determine the design alternatives for a column which must support a compressive axial load of 10,000 pounds. Assume that the load is static. The column is 12 feet in length and the ends are fixed, pinned. The material is A36 Structural Steel. Using a design factor of 2, select the most suitable standard S Beam, W Beam, Pipe and Structural Tubing from the options included in the steel tables in the text to support the load P. Of the four sections, determine the lightest, based on cross sectional area. How to calculate the cross sectional area?