A steel built-up section is made by 3-W760 x 314 steel sections as shown in thefigure. Typical section details is given at the right side. With this,y785 mm-19.7 mm33.5 mm384 mm-Built-up SectionTypical SectionIk = 4200 x 10° mm* ly = 315 x 108 mm* Area, A = 40100 mm2a. If the given y-axis is located at the centroidal y-axis (as shown), determine the locationof centroidal x-axis from the given x-axis.b. Calculate the moment of inertia about the centroidal x-axisc. Compute the moment of inertia about the centroidal y-axis

It is constructed from using the three symmetrical I sections. The I sections used to construct…

A steel built-up section is made by 3-W760 x 314 steel sections as shown in the figure. Typical section details is given at the right side. With this, 785 mm 19.7 mm 33.5 mm 384 mm- Built-up Section Typical Section Ik = 4200 x 10° mm ly = 315 x 10° mm* Area, A = 40100 mm? %3D

A steel built-up section is made by 3-W760 x 314 steel sections as shown in the figure. Typical section details is given at the right side. With this, 785 mm 19.7 mm 33.5 mm 384 mm- Built-up Section Typical Section Ik = 4200 x 10° mm ly = 315 x 10° mm* Area, A = 40100 mm? %3D

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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Question

A steel built-up section is made by 3-W760 x 314 steel sections as shown in the
figure. Typical section details is given at the right side. With this,
y
785 mm
-19.7 mm
33.5 mm
384 mm-
Built-up Section
Typical Section
Ik = 4200 x 10° mm* ly = 315 x 108 mm* Area, A = 40100 mm2
a. If the given y-axis is located at the centroidal y-axis (as shown), determine the location
of centroidal x-axis from the given x-axis.
b. Calculate the moment of inertia about the centroidal x-axis
c. Compute the moment of inertia about the centroidal y-axis

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The given built up beam section is:

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Properties of the single I section :

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Calculation of centroid and moment of inertia

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