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A bridge having a horizontal top cord is span between tow piers Aand B having an arbitrary height. It is required that apin-connected truss be used, consisting of steel members boltedtogether to steel gusset plates. The end supports are assumed to bea pin at A and a roller at B. A vertical loading of 5 kN isto be supported within the middle 3m of the span. This loadcan be applied in part to several joints on the top cord withinthis region or to a single joint at the middle of the topcord. The force of the wind and the weight ofthe members are to be neglected. Assume themaximum tensile force in each member cannot exceed 4.25 kN; andregardless of the length of the member, the maximum compressiveforce cannot exceed 3.5kN. Design the mosteconomical truss that will support the loading. The members cost $7.50/m and the gusset plates cost $8.00each. Submit your cost analysis for thematerials, along with a scaled drawing of the truss, identifying onthe drawing the tensile and compressive force in eachmember. Also include your calculations of thecomplete force analysis.
A suburban street receives storm water runoff at a rate of 2.0 L/m-s (one each side). the street has a slope of .8 percent and a cross slope of 2 percent, n = .013.
Suppose that in a senior college class of 500 students it is found that 210 smoke, 258 drink alcoholic beverages, 216 eat between meals, 122 smoke and drink alcoholic beverages, 83 eat between meals and drink alcoholic beverages
A water treatment plant is being designed for a flow of 1.6 m^3/s. How many rapid sand filters, using only sand as the medium, are needed for this plant if cross-sectional area of each filter is 10 m x 20 m
A certain stell tape, for wich the the coefficient of expansion is 0.00000645, is exactly 100 ft long68 farenheit. at 15 farenheiit the length of the tape is howmany feet?
a circular drain pipe has a radius of 375 mm. it conveys water 30 ordmc from location 1 to location 2 between which
Twenty years of annual maximum rainfall depths are given below. Determine the rainfall depths to be used for storm structure design for the following annual return periods: 2, 5, 10, 25, 50, & 100 year.
A horizontal rectangular concrete channel terminates in a free outfall. The channel is 4m wide and carries a discharge of water 12 cms. What is the water depth 300 m upstream from the outfall
water is pumped into an irrigation pond at 250 gal/min for 24 hours. the pond area is 2500 square feet. Determine the depth of water in the pond .Provide answer in ft and m
Barron Chemical uses a thermoplastic polymer to enhance the appearance of certain RV panels. The initial cost of one process was $130,000 with annual costs of $49,000 and revenues of $78,000 in year 1, increasing by $1000 per year.
calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. The air temperature is 20`C, canary's body internal and surface temperature is 33`C
a layer of clay, 5m thick, overlies a deposite of sand, 5m thick, which is underlaid by rock. the water table in the sand is sub-artesian with a level at 2m below fround level. the saturated unit weights of the clay and sand are 21 and 16 KN/m^3 r..
Determine the coefficient of thermal expansion (in m/m.K) for the material over the temperature ranges - Determine i. the phases present
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