(Assuming Max allowable deflection on Member is= L/360, can a W10x100 member carry the load you can use SAP 2000 or Manually compute deflections) 2.) Determine the force in all members of each truss shown in Fig.3.6.4 and Indicate if the members are in Tension or compression. (You can also check your answers using Sap 2000 however manual calculations are required for at least 2-nodes) ↑ 3m Fig.3.6.4 B C D E 4 m 4 m 80kN 15kN (Identify the member with the greatest tension force and check if a L6x6x 3/8 its sufficient to carry the the tension load assuming 1 row- 3 5/8" diameter bolts. Fy=36ksi, Fu=60ksi Part 2 (60+)

The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular cross section of 0.2011in.2 in area and a gage length (the length over which the elongation is measured) of 2.000 inches. The specimen was not loaded to failure. a. Generate a table of stress and strain values. b. Plot these values and draw a best-fit line to obtain a stress-strain curve. c. Determine the modulus of elasticity from the slope of the linear portion of the curve. d. Estimate the value of the proportional limit. e. Use the 0.2 offset method to determine the yield stress.

A column in a building is subjected to the following load effects: 9 kips compression from dead load 5 kips compression from roof live load 6 kips compression from snow 7 kips compression from 3 inches of rain accumulated on the roof 8 kips compression from wind a. If lead and resistance factor design is used, determine the factored load (required strength) to be used in the design of the column. Which AISC load combination controls? b. What is the required design strength of the Column? c. What is the required nominal strength of the column for a resistance factor of 0.90? d. If allowable strength design is used, determine the required load capacity (required strength) to be used in the design of the column. Which AISC load combination controls? e. What is the required nominal strength of the column for a safety factor of 1.67?

Determine the smallest value of yield stress Fy, for which a W-, M-, or S-shape from Part 1 of the Manual will become slender. To which shapes does this value apply? What conclusion can you draw from your answer?