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Six Concentrated Loads Applied Equations and Calculator

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Beam Four Supports with Six Concentrated Loads Applied Supports, Moments, Shear and Reactions Equations and Calculator.

Continuous beam of three equal spans - concentrated load, P, at third points of each span.

Continuous beam of three equal spans - concentrated load, P, at third points of each span
Figure 1 Continuous beam of four equal spans Shear and Moment Diagrams

Preview: Beam Three Support Two Loads Calculator

Reactions:

Eq. 1
R1 = (11/15) P

Eq. 2
R2 = (34/15) P

Eq. 3
R3 = (34/15) P

Eq. 4
R4 = (11/15) P

Shear forces:

Eq. 5
V1 = (11/15) P

Eq. 6
V2 = -(19/15) P

Eq. 7
V3 = (19/15) P

Eq. 8
V4 =
-(11/15) P

Eq. 9
V5 = P

Eq. 10
V6 = -P

Bending moments:

Eq. 11
Mmax = -(12/45) P · L

Eq. 12
M1 = (11/45) P · L

Eq. 13
M2 = (7/45) P · L

Eq. 14
M3 = (3/45) P · L

Where

P = Concentrated load, lbf/in (N/m)
L = beam length, in, (m)
R... = reaction at support , lbf (N)
V... = shear forces lbf, (N)
M... = bending moments, lb-in, (N-m)

Related

Source

Civil Engineering Reference Manual, Fifteenth Edition, Michael R. Lindeburg, PE