Tapered T Beam

Written by Jerry Ratzlaff on . Posted in Structural

• A tapered T beam is a structural shape used in construction.

formulas that use area of a Tapered T Beam

 $$\large{ A = w\;s + \frac{ h \; \left(T \;+\; t \right) }{2} }$$

Where:

$$\large{ A }$$ = area

$$\large{ h }$$ = height

$$\large{ t }$$ = thickness

$$\large{ T }$$ = thickness

$$\large{ s }$$ = width

$$\large{ w }$$ = width

formulas that use Distance from Centroid of a Tapered T Beam

 $$\large{ C_x = 0 }$$ $$\large{ C_y = l \;-\; \frac{1}{6\;A} \; \left[ 3\;w\;s^2 + 3\;h\;t \; \left( l + s \right) + h \; \left( T - t \right) \; \left( h + 3\;s \right) \right] }$$

Where:

$$\large{ C }$$ = distance from centroid

$$\large{ A }$$ = area

$$\large{ h }$$ = height

$$\large{ l }$$ = height

$$\large{ t }$$ = thickness

$$\large{ T }$$ = thickness

$$\large{ s }$$ = width

$$\large{ w }$$ = width

formulas that use Elastic section Modulus of a Tapered T Beam

 $$\large{ S_{x} = \frac{ I_{x} }{ C_{y} } }$$

Where:

$$\large{ S }$$ = elastic section modulus

$$\large{ C }$$ = distance from centroid

$$\large{ I }$$ = moment of inertia

formulas that use Perimeter of a Tapered T Beam

 $$\large{ P = 2\;w + 2\;s \;-\; T + t + 2\; \sqrt{ \left( \frac{1}{2} \right)^2 + \left( \frac{T}{2} \right)^2 } }$$

Where:

$$\large{ P }$$ = perimeter

$$\large{ t }$$ = thickness

$$\large{ T }$$ = thickness

$$\large{ s }$$ = width

$$\large{ w }$$ = width

formulas that use Radius of Gyration of a Tapered T Beam

 $$\large{ k_{x} = \sqrt{ \frac{ I_x }{ A } } }$$ $$\large{ k_{x1} = \sqrt{ \frac{ I_{x1} }{ A } } }$$

Where:

$$\large{ k }$$ = radius of gyration

$$\large{ A }$$ = area

$$\large{ I }$$ = moment of inertia

formulas that use Second Moment of Area of a Tapered T Beam

 $$\large{ I_{x} = \frac{ \left[ 4\;w\;s^3 \;+\; h^3 \; \left( 3\;t \;+\; T \right) \right] \;-\; A \; \left( l \;-\; C_y \;-\; s \right)^2 }{12} }$$ $$\large{ I_{x1} = I_{x} + A \;C_{y} }$$

Where:

$$\large{ I }$$ = moment of inertia

$$\large{ A }$$ = area

$$\large{ C }$$ = distance from centroid

$$\large{ h }$$ = height

$$\large{ l }$$ = height

$$\large{ t }$$ = thickness

$$\large{ T }$$ = thickness

$$\large{ s }$$ = width

$$\large{ w }$$ = width