Video from my You tube channel

Subscribe to My You tube channel

Example 3: nominal moment for T shape beam

Determine Mn for beam in figure 1.if fy= 60,000 psi and f c'= 4000 psi.
Figure 1








first, assuming a is located in the flange portion

a=As.fy/(0.85*fc'*b)
a=(5*1*60,000)/(0.85*4000*24)
a=3.67in

3.67in<4in then the assumption is correct and we can continue to calculate Mn

Mn=As.fy*(d*a/2)
Mn=5*60,000*(30-3.67/2)
Mn=8,449,500 lb-in=708.3k-ft
Figure 2



Comments

Popular posts from this blog

Field density test-sand cone method

Zero force member for truss

Example 1: Design of one-way slab

Determinate and indeterminate structure

Pile cap

Tributary area(Loading)

Flakiness Index and Elongation Index of Coarse Aggregates

Types of structure

Strength reduction factor ∅

Heavyweight concrete