# Beam

## Problem 352 | Equilibrium of Non-Concurrent Force System

**Problem 352**

A pulley 4 ft in diameter and supporting a load 200 lb is mounted at B on a horizontal beam as shown in Fig. P-352. The beam is supported by a hinge at A and rollers at C. Neglecting the weight of the beam, determine the reactions at A and C.

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## Problem 351 | Equilibrium of Non-Concurrent Force System

**Problem 351**

The beam shown in Fig. P-351 is supported by a hinge at A and a roller on a 1 to 2 slope at B. Determine the resultant reactions at A and B.

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## Solution to Problem 581 | Design for Flexure and Shear

**Problem 581**

A laminated beam is composed of five planks, each 6 in. by 2 in., glued together to form a section 6 in. wide by 10 in. high. The allowable shear stress in the glue is 90 psi, the allowable shear stress in the wood is 120 psi, and the allowable flexural stress in the wood is 1200 psi. Determine the maximum uniformly distributed load that can be carried by the beam on a 6-ft simple span.

## Solution to Problem 576 | Horizontal Shearing Stress

**Problem 576**

Rework Prob. 575 assuming that the web is 200 mm instead of 160 mm.

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## Solution to Problem 575 | Horizontal Shearing Stress

**Problem 575**

Determine the maximum and minimum shearing stress in the web of the wide flange section in Fig. P-575 if V = 100 kN. Also, compute the percentage of vertical shear carried only by the web of the beam.

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## Solution to Problem 574 | Horizontal Shearing Stress

**Problem 574**

In the beam section shown in Fig. P-574, prove that the maximum horizontal shearing stress occurs at layers h/8 above or below the NA.

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## Solution to Problem 573 | Horizontal Shearing Stress

**Problem 573**

The cross-section of a beam is an isosceles triangle with vertex uppermost, of altitude h and base b. If V is the vertical shear, show that the maximum shearing stress is 3V / bh located at the midpoint of the altitude.

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## 18 - 20 Rectangular beam in maxima and minima problems

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## Solution to Problem 516 | Flexure Formula

**Problem 516**

A timber beam AB, 6 in wide by 10 in deep and 10 ft long, is supported by a guy wire AC in the position shown in Fig. P-516. The beam carries a load, including its own weight, of 500 lb for each foot of its length. Compute the maximum flexural stress at the middle of the beam.

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## Solution to Problem 253 Statically Indeterminate

**Problem 253**

As shown in Fig. P-253, a rigid beam with negligible weight is pinned at one end and attached to two vertical rods. The beam was initially horizontal before the load W = 50 kips was applied. Find the vertical movement of W.

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