# HW1 - ENGR 111 804 806 Fall 2009 Homework 1 Individual Due...

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ENGR 111 804 – 806 Homework 1 Individual 1 Fall, 2009 Due Wed, September 16 Problem 1-1: The beam shown in Figure 1 is in equilibrium under the loads shown when a knife edge fulcrum is placed at Point B. Calculate (a) the vertical force at C and (b) the reaction force at B. Problem 1-2: Referring to the above problem, an additional downward force of 76 lbf is applied at Point A. The value of Fcy remains unchanged. Calculate the position (distance from Point A) to which the knife edge fulcrum must be moved to establish equilibrium. Problem 1-3: For the truss shown in Figure 2, loaded as shown, calculate the horizontal and vertical reaction forces at the supports. Hint: You will need three equations, because there are three unknowns. One of these involves calculating moments. Problem 1-4: When the truss shown in Figure 2 is assembled, the foreman measures the angle at Point A and discovers that it is 47.16 o . The truss element lengths AB and AC are measured and found to be correct. Calculate the as-built

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## This note was uploaded on 04/04/2011 for the course ENGR 111 taught by Professor Walker during the Fall '07 term at Texas A&M.

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HW1 - ENGR 111 804 806 Fall 2009 Homework 1 Individual Due...

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