Engineering, 19.04.2021 15:50 saltedcaramel60
wind loads in a multistory building as well as gravity loads for economy. The wind loads (W) due to wind pressures in this story and from the column shear above are computed to be 60 kips at story level (aligned with CL of beam). Gravity loads from the stories above are 220 kips dead load (D) and 140 kips live load (L) to each column as well as 3 kips per lineal foot uniform distributed load due to dead load and 1.5 kips per lineal foot uniform distributed load from live load acting on the beam. Conservatively, assume pinned connections everywhere and that the braces provide no resistance to gravity loads. Do a preliminary sizing on the beam, columns and braces assuming a) a brace with sufficient buckling strength to develop equal forces between both braces and b) a slender brace such that the compression strength can be ignored. For case (b) check that the beam can support the additional vertical load. No need to do beam-column checks on the columns. The primary framing elements are to be W sections, but the brace shape is left to your discretion. Typical sections most often used for this purpose are angles (L), double angles (2L), and HSS. Utilize the AISC Manual tables as necessary and remember to factor your demands.
Answers: 1
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
wind loads in a multistory building as well as gravity loads for economy. The wind loads (W) due to...
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