A steel column of hollow circular cross section is supported on a circular steel base plate and a concrete pedestal . The columm has outside diameter d = 250 mm and supports a load P= 750 kN. (a) If the allowable stress in the column is 55 MPa, what is the minimum required thickness ? Based upon your result, select a thickness for the column. (Select a thickness that is an even integer, such as 10, 12, 14,... in units of millimeters.) (b) If the allowable bearing stress on the concrete pedestal is 11.5 MPa, what is the minimum required diameter D of the base plate if it is designed for the allowable load P that the column with the selected thickness can support? 1 517273674590034...1.9-12 A steel column of hollow circular cross section isR-1.4 Aload Puni formsupported on a circular steel base plate and a concretepedestal (see figure). The column has outside diameterd = 250 mm and supports a load P = 750 kN.(a) If the allowable stress in the column is 55 MPa,what is the minimum required thickness ? Based uponyour result, select a thickness for the column. (Select athickness that is an even integer, such as 10, 12, 14, . .., inunits of millimeters.)(b) If the allowable bearing stress on the concretepedestal is 11.5 MPa, what is the min imum requi red diam-eter D of the base plate if it is designed for the allowableload P that the column with the selected thickness cansupport?eters anpost areand 'BCmust haThe reqi(A)(B)(C)(D)ColumnBase plateR-1.6 A steel plate wei ghing 27 kN is hoisted by a cable'ng that has a clevis at each end. The pins through the clees are 22 mm in diameter. Each half of the cable is at anR-1.Angle of 35° to the vertical. The average shear stress in ea chpin is approximately:P,P2II>

(a) It is required to determine the inner diameter of the steel column. di=do-2t=250-2t It is…

Answered: 1.9-12 A steel column of hollow…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A steel column of hollow circular cross section is supported on a circular steel base plate and a concrete pedestal . The columm has outside diameter d = 250 mm and supports a load P= 750 kN. (a) If the allowable stress in the column is 55 MPa, what is the minimum required thickness ? Based upon your result, select a thickness for the column. (Select a thickness that is an even integer, such as 10, 12, 14,... in units of millimeters.) (b) If the allowable bearing stress on the concrete pedestal is 11.5 MPa, what is the minimum required diameter D of the base plate if it is designed for the allowable load P that the column with the selected thickness can support?

1 517273674590034...
1.9-12 A steel column of hollow circular cross section is
R-1.4 A
load P
uni form
supported on a circular steel base plate and a concrete
pedestal (see figure). The column has outside diameter
d = 250 mm and supports a load P = 750 kN.
(a) If the allowable stress in the column is 55 MPa,
what is the minimum required thickness ? Based upon
your result, select a thickness for the column. (Select a
thickness that is an even integer, such as 10, 12, 14, . .., in
units of millimeters.)
(b) If the allowable bearing stress on the concrete
pedestal is 11.5 MPa, what is the min imum requi red diam-
eter D of the base plate if it is designed for the allowable
load P that the column with the selected thickness can
support?
eters an
post are
and 'BC
must ha
The reqi
(A)
(B)
(C)
(D)
Column
Base plate
R-1.6 A steel plate wei ghing 27 kN is hoisted by a cable
'ng that has a clevis at each end. The pins through the cle
es are 22 mm in diameter. Each half of the cable is at an
R-1.
Angle of 35° to the vertical. The average shear stress in ea ch
pin is approximately:
P,
P2
II
>

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