# Uniform Load

## Reactions of Tripod Made from Wood Planks

**Situation**

In the figure shown, each plank carries a uniform load of 100 N/m throughout its length. The supports are on the same plane.

- Find the reaction at A.

A. 900 N

B. 800 N

C. 1400 N

D. 2400 N

- Find the reaction at B.

A. 900 N

B. 800 N

C. 1400 N

D. 2400 N

- Find the reaction at C.

A. 900 N

B. 800 N

C. 1400 N

D. 2400 N

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## Problem 860 | Deflection by Three-Moment Equation

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## Problem 833 | Reactions of Continuous Beams

**Problem 833**

Refer to Problem 825 for which M_{2} = -980 lb·ft and M_{3} = -1082 lb·ft.

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## Problem 823 | Continuous Beam by Three-Moment Equation

**Problem 823**

A continuous beam simply supported over three 10-ft spans carries a concentrated load of 400 lb at the center of the first span, a concentrated load of 640 lb at the center of the third span and a uniformly distributed load of 80 lb/ft over the middle span. Solve for the moment over the supports and check your answers using the results obtained for Problems 819 and 822.

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## Problem 822 | Continuous Beam by Three-Moment Equation

**Problem 822**

Solve Prob. 821 if the concentrated load is replaced by a uniformly distributed load of intensity w_{o} over the middle span.

Answers:

$M_2 = -\dfrac{w_o L^2}{4} \cdot \dfrac{1 + 2\beta}{4(\alpha + 1)(1 + \beta) - 1}$

$M_3 = -\dfrac{w_o L^2}{4} \cdot \dfrac{1 + 2\alpha}{4(1 + \alpha)(1 + \beta) - 1}$

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## Problem 820 | Continuous Beam by Three-Moment Equation

**Problem 820**

Solve Prob. 819 if the concentrated load is replaced by a uniformly distributed load of intensity w_{o} over the first span.

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## Problem 816 | Continuous Beam by Three-Moment Equation

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## Problem 1007 | Flexural stresses developed in the wood and steel fibers

**Problem 1007**

A uniformly distributed load of 300 lb/ft (including the weight of the beam) is simply supported on a 20-ft span. The cross section of the beam is described in Problem 1005. If n = 20, determine the maximum stresses produced in the wood and the steel.

## Problem 734 | Restrained beam with uniform load over half the span

**Problem 734**

Determine the end moments for the restrained beams shown in Fig. P-734.

## Problem 813 | Continuous Beam by Three-Moment Equation

**Problem 813**

Determine the moment over the support R_{2} of the beam shown in Fig. P-813.

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