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# Re: Shear center of L-shape 'concrete' beam

• To: seaint(--nospam--at)seaint.org
• Subject: Re: Shear center of L-shape 'concrete' beam
• From: "Alexander Bausk" <bauskas(--nospam--at)gmail.com>
• Date: Thu, 25 Sep 2008 23:04:20 +0300

Wontae, Christopher,

Well, here's a brute force solution. I've fed my Ansys/ED with your section and it says the shear center is at x=147.5mm, y=182.3mm. It's halfway from centroid to centerline intersection.

On Thu, Sep 25, 2008 at 7:08 PM, Christopher Wright wrote:

On Sep 25, 2008, at 7:49 AM, Alexander Bausk wrote:

In most general case, the flexural centre coordinates are described by a rather complex integral equation, given in Martin Sadd's book on elasticity of 2005.
I'll write more if I find a more usable equation.
You're overcomplicating the problem. _Mechanics of Materials_ by Popov (2nd ed 1952) on page 145 has a 3 page explanation with examples, including an angle. Mostly words, many pictures a few formulas, no integral equations. First principles--you gotta love 'em.

Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw(--nospam--at)skypoint.com   | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania 1864)
http://www.skypoint.com/members/chrisw/

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Alexander Bausk