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MECNICA ANALTICA

TALLER N 5

Anlisis de Estructuras

1. Un seguidorABCDse mantiene contra una

leva circular gracias a la accin de un

resorte estirado, el cual ejerce una fuerza

de 6-lbpara la posicin mostrada en la

figura.

Si la tensin en la barra BEes de 4 lb,

determine:

a) La fuerza ejercida sobre el rodillo en

A.

b) La reaccin en el apoyo C.

2. The Gambrel truss shown in fig. supports one side of a bridge; an

identical truss supports the other side. Floor beams carry Vehicle loads

to the truss joints. Calculate the forces in members BC, BGand CG

when a truck weighing 7500 lbis stopped in the middle of the bridges as

shown. The center of gravity of the truck is midway between the front and

rear wheels.

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