How calculation of moment of inertia will influence the bending stress value of a rectangular section?
Also find the bending stress for a rectangular section of size 3500 mm X 650 cm in which the bending
moment will be taken as 300x103 Nmm.

A wooden beam is fabricated from one 2 × 12 and two 2 × 12 dimension lumber boards to form the double-tee cross section shown. The beam flange is fastened to the stem with nails. Each nail can safely transmit a force of 160 lb in direct shear. The allowable shear stress of the wood is 84 psi. Assume b₁ = 12 in., b₂ = 2 in., d₁ = 2 in., d₂ = 12 in.
(a) If the nails are uniformly spaced at an interval of s = 2.4 in. along the span, what is the maximum internal shear force V that can be supported by the double-tee cross section?
(b) What nail spacing s would be necessary to develop the full strength of the double-tee shape in shear? (Full strength means that the maximum horizontal shear stress in the double-tee shape equals the allowable shear stress of the wood.)

Using the Sud and Arthur dimensions for evaluating requirements management tools, conduct an assessment of five different commercial or open-source tools using publicly available information.

How do internal wind pressures affect the lateral loads resisted by shear walls?

A DOT is performing a benefit-cost analysis of a new highway using an analysis period of 40 years as part the required environmental impact assessment of the project. The section of highway is estimated to have a construction cost $220 million dollars. The public benefit in reduced travel time and economic development around the highway is estimated to be $17 million per year for the first 5 years, then decrease by 3% per year for the remainder of the 40 year analysis period as congestion grows and economic development slows. The public disbenefit is estimated to be $2 million dollars in year 0 due to additional congestion and pollution during construction, then average $160,000 per year over the 40-year project life in environmental costs due to increased runoff and vehicle emissions. Using an interest rate of 4%, determine the benefit-cost ratio for this project using public/government version of the B/C ratio. Express your answer to two decimal places.

TRUE or FALSE: The best evidence of the intent of a survey is the testimony of the surveyor who performed the survey. Why or why not?

produce a report (300 words min) which identifies the requirements for drainage within the railway infrastructure and the methods of achieving adequate drainage. use a section of track as an example and illustrate your report with photographs and drawings as appropriate. explain the common failure modes associated with track drainage.

The 45∘ strain rosette is mounted on the surface of a shell. The following readings are obtained for each gage: ϵa=−200(10−6), ϵb=300(10−6), and ϵc=250(10−6)
Determine the in-plane principal strains

A flexural member is fabricated from two flange plates ⁄1 2 x 16 and a web plate 1⁄4 x 20. The yield stress of the steel is 50 ksi.

a.Compute plastic section modulus Z and plastic moment Mp wrt the major principal axis.

b.Compute elastic section modulus S and yield moment My wrt the major principal axis.

c. Check the local buckling criteria and apply it to the bending moment capacity

d. Plot the moment capacity vs. slenderness parameter λ , show, compact, noncompact, and slender regions and applicable moments

An oceanic Oil Tanker weighing 63,000 tons with no fuel has 13 separate tanks with dimensions of 110’ x 107’ x 32’. The waterline on the ship has a cross sectional area of 280,000 ft2. The ship can submerge a maximum of 15 feet due to the weight in the tanks, and the cross sectional area of the waterline will remain the same area. What is the maximum number of gallons of Kerosene (S.G. = .87) that the ship can hold, without going over the restriction? a. 20 Million Gallons b. 48 Million Gallons c. 36 Million Gallons d. 62 Million Gallons

TRP 631: HIGHWAY TRAFFIC OPERATIONS

An existing six-lane divided multilane highway with a field-measured free-flow speed of 45 mi/h serves a peak-hour volume of 4,000 veh/h with 10% trucks (50% SUT, 50% TT). The PHF is 0.88. The highway has generally rolling terrain. What is the likely level of service of this segment? Good weather, no incidents, no work zones, and regular drivers may be assumed.