## Strength of materials |

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Page 175

A rectangular beam b in. wide by h in. high carries a central concentrated load P

on a simply supported span of L ft. Express the maximum S, in terms of the

maximum S/. . hS/ Ans. i>, = 24L 581. A laminated beam is composed of 5 planks,

each 2 in. by 6 in., glued together to form a section 6 in. wide by 10 in. high. If the

allowable strength of the glue is 75 psi, what maximum flexure stress may be

developed when supporting a

582.

A rectangular beam b in. wide by h in. high carries a central concentrated load P

on a simply supported span of L ft. Express the maximum S, in terms of the

maximum S/. . hS/ Ans. i>, = 24L 581. A laminated beam is composed of 5 planks,

each 2 in. by 6 in., glued together to form a section 6 in. wide by 10 in. high. If the

allowable strength of the glue is 75 psi, what maximum flexure stress may be

developed when supporting a

**uniformly distributed load**on a 12-ft simple span?582.

Page 201

6-14 is 9 ft long and supports a

6 ft of the span. At any section a-a between A and B, the moment effect defined by

M = (2Af)z, is caused only by R\ . Also, at any section b-b between B and C, the

moment effect will be due to Rx and to the portion of the

included between B and b-b. Note that defining the bending moment in terms of

the forces to the left of the section means that the

no ...

6-14 is 9 ft long and supports a

**uniformly distributed load**of 30 lb/ft over the right6 ft of the span. At any section a-a between A and B, the moment effect defined by

M = (2Af)z, is caused only by R\ . Also, at any section b-b between B and C, the

moment effect will be due to Rx and to the portion of the

**uniformly distributed load**included between B and b-b. Note that defining the bending moment in terms of

the forces to the left of the section means that the

**uniformly distributed load**hasno ...

Page 284

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

over the middle span. Solve for the moments over the supports and check your

answers using the results obtained for Probs. 819 and 822. 824. The first span of

a simply supported continuous beam is 20 ft long, the second span is 16 ft long,

and the third ...

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/ftover the middle span. Solve for the moments over the supports and check your

answers using the results obtained for Probs. 819 and 822. 824. The first span of

a simply supported continuous beam is 20 ft long, the second span is 16 ft long,

and the third ...

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