475mm 12mm A column 9m is fixed at the base about both axes and pinned at the top about both axes. In addition, it is braced in the weak direction 4m from the base. A572 Grade 60 steel is used (Fy=420 MPa). a. Determine the design axial compressive strength of the column. Consider it as a rolled section. 575mm b. Is the column adequate to carry an ultimate axial load of 5,600kN? 18mm Note: Service Load - actual imparted loads on a structure. Ultimate Load – factored loads (take the service loads Figure 1. Properties of the Steel Section and amplify them to represent the loads we design

475mm 12mm A column 9m is fixed at the base about both axes and pinned at the top about both axes. In addition, it is braced in the weak direction 4m from the base. A572 Grade 60 steel is used (Fy=420 MPa). a. Determine the design axial compressive strength of the column. Consider it as a rolled section. 575mm b. Is the column adequate to carry an ultimate axial load of 5,600kN? 18mm Note: Service Load - actual imparted loads on a structure. Ultimate Load – factored loads (take the service loads Figure 1. Properties of the Steel Section and amplify them to represent the loads we design

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

4.7-2 An HSS 10 x 6 x 6 with F 46 ksi is used as a column. The length is 15 feet. Both ends are pinned, and there is support against weak axis buckling at a point 6 feet from the top. Determine a. the design strength for LRFD. b. the allowable stress for ASD.
2. The column shown in the figure is reinforced with 6 - 25mm diam steel with fy: = 415Mpa and f'c = 27Mpa a. Determine the nominal load pn when e = 200mm b. Determine the nominal load when e = 350mm C. 250 mm 65 mm 400mm 65 mm e CD Pn
A traffic light signal pole is subjected to the weight of each traffic signal 45 lbs and the weight of the road lamp 55 lbs . The weight of lateral arms is included in the signal and lamp weights. The people is fixed and the base and is made of round structural steel section HSS 14.000 x 0.25. The details of the pole section may be obtained form the Manual of American society of steel Construction (AISC Steel Manual). Analyze the principle normal stresses and the maximum shear stresses on elements A and B located at the base in the pole as shown in the sketch below
The rigid frame shown in Figure is unbraced in the plane of the frame. In the direction perpendicular to the frame, the frame is braced at the joints. The connections at these points of bracing are simple (moment-free) connections. Roof girders are W14 x 30, and floor girders are W16 x 36. Member BC is a W10 x 45. Use A992 steel and select a W-shape for AB. Assume that the controlling load combination causes no moment in AB. The service dead load is 25 kips and the service live load is 75 kips. a. Use LRFD. b. Use ASD
Q2: A(500*400) mm column shown in Fig.2 is reinforced with 12032mm bars. The applied 1000 kN is applied at eccentricities (c ey 200mm). Check the service dead load P adequacy of the section. Let fe -25 MPa. f -400MP.. (D) 60 280 60 75 350 75 1. coleo
Using A36 steel, determine the safe load P based on the capacity of the bottom strut with a cross section as shown. Use LRFD. Letk 1.0. C9x20 3.4m -→ I 4.5m 90mm a) Calculate the radius of gyration at strong axis of the built-up section. b) What is the critical slenderness ratio? c) Find the critical buckling stress. d) Compute the nominal capacity of the bottom strut. e) Determine the safe load P.
D 2a В 4а 2a 4a E 390 The columns AC and DE are connected to the bars BD and CD by pins. The support at A is a pin and the support at E is a roller. Determine the forces acting on each column due to the horizontal linearly distributed load on AC and vertical unifrom load on CD. Present your solution as two FBDS showing the actual forces.
The light rigid bar ABCD shown is pinned at C and connected to two vertical rods. The bar was initially horizontal, and the rods were stress-free before the load P= 20 KN is applied. Sleel E-200 GPa A-400mm L1 m 2.0 m 0.6 m 1.5m P-20 KN Aluminum E70 GPa A-900mm L-1.5 m 1. Axial load at steel rod in kN? 2. Axial stress at steel rod in MPa? 3. Axial deformation of aluminum rod in mm? 4. Axial deformation of steel rod in mm? 5. Axial Load at aluminum rod in kN?
The A-36 stee (Fy= 250 MPa) W 200 x 46 member shown in Fig. is to be used as a pin-connected column. Determine the largest axial load it can support before it either begins to buckle or the steel yields.
Situation 2. A W14x90 of A992 steel is used as a pin-connected column. The 30ft long column is braced at mid-height with respect to its weak axis. Determine the axial compressive load. (ASD & LRFD) 30ft Properties of W14x90: 15ft 15ft A = 26.5 in.² d = 14.0 in. by = 14.5 in. t₁ = 0.710 in. tw = 0.440 in. Tx = 6.14 in. ry = 3.70 in. by/2t, = 10.2 h/tw = 25.9
Select a WT section for the compression member shown in Figure. The load is the total service load, with a live-to-dead load ratio of 2.5:1. Use Fy 5 50 ksi. a. Use LRFD. b. Use ASD 21' 175 k 1
Select the lightest W section for the column shown in the accompanying figure. The loading is 30 kips dead load and 120 kips gravity live load. The member is built into a wall so that it may be considered as continuously braced in the weak direction. Note: Not all of the variable W sections are included in the AISC Manual "Available Strength in Axial Compression" tables. Use (a) A992 steel; (b) Fy = 60 ksi