Estimate the force on the chimney at the bottom of chimney

Assignment Help Civil Engineering
Reference no: EM13320539

A 10m height chimney has a 2.0m x 2.0m square cross section. The wind blows horizontally in a direction which is parallel to one of the diagonals of the cross section. Careful measurement shows that, at height y from the ground, the magnitude of the wind velocity is given by

u = 1.16 * Unom* log(750*y) for y > 1m

where Unom = 5m/s. The density and viscosity of air are 1.2 kg/m3 and 2.0x10-5
m2/s respectively.

Estimate the force on the chimney and the bending moment at the bottom of the chimney. You may assume that the effect of the wind on the first 1 m height of the chimney has a negligible effect on the force and the moment.

Reference no: EM13320539

Questions Cloud

Under what circumstances is there an exception to law : under what circumstances is there an exception to the general law that an identified original section corner controls the positions of the boundary lines meeting at or passing through the corner
Equity section of the balance sheet : Balance Sheet Presentation of Available-for-Sale Investments During 2012, Toney Corporation held a portfolio of available-for-sale securities having a cost of $196,900. There were no purchases or sales of investments during the year.
Find the average force that the water exerts on the diver : A 60 kg person jumps from rest off a 5m high tower straight down into the water. find the average force that the water exerts on the diver
What is the amount dubois will receive on the sale : Dubois Inc. loans money to John Kruk Corporation in the amount of $823,200. Dubois accepts an 8% note due in 6 years with interest payable semiannually.
Estimate the force on the chimney at the bottom of chimney : The wind blows horizontally in a direction which is parallel to one of the diagonals of the cross section. Careful measurement shows that, at height y from the ground, the magnitude of the wind velocity is given
How long does david measure the train car to be : A very fast-moving train car passes you, moving to the right at 0.50c. You measure its length to be 12m. How long does David measure the train car to be
Explain the actual revenues and expenditures : Prepare journal entries to record the actual revenues and expenditures. Assume all transactions resulted in increases or decreases in cash.
Consider the following definition of discrimination : Consider the following definition of discrimination
Determine the dividend yield for macro : Dividend Yield The market price for Macro Corporation closed at $33.07 and $47.93 on December 31, 2008, and 2009, respectively. The dividends per share were $0.42 for 2008 and $0.58 for 2009.

Reviews

Write a Review

 

Civil Engineering Questions & Answers

  Estimate the land area in acres that must be purchased

The city has a stable population of 235,000 residents and the design criteria for the new landfill are as follows: MSW generation rate = 4.0 lb/(person-day); density of the compacted MSW in the landfill is 775 lb/yd3

  Velocity and acceleration of the flow

The volume flow rate of streams into the pipe is given by QA = 0.02t m 3 /s and that of stream B by QB = 0.008t 2 m 3 /s, where t is in seconds. The exit area of the pipe is 0.01m 2 . Find velocity and acceleration of the flow at exit at t = 1s.

  Define water circulating through it at the rate

A 4 X 8-ft solar collector has water circulating through it at the rate of 1.0 gallon per minute while exposed to sunlight with intensity 300 Btu/ft^2-hr.

  Determining tension in cables using crane hook

The casting has a mass of 3 Mg. Suspended in a vertical position and initially at rest, it is given an upward speed of V mm/s in 0.3s using a crane hook H. Determine the tension in cables AC and AB during this time interval if the acceleration is ..

  Define materials to construct an industrial building

Materials To Construct An Industrial Building, A small building can be constructed of steel or wood framing. A decision is made to use steel for fire resistance.

  What is probability that will cross within first four gaps

The traffic on the one-­way main street shown below may be satisfactorily described by a Poisson process with an average rate of arrival of 8 cars per minute. A driver (indicated by the box) on the side street is waiting to cross the main street.

  How many inches should the channel drop in 350feet of length

design a concrete (n = 0.013) channel that will convey 50,000 GPM. It is to be a trapezoidal in cross section with a bottom width of 7.5 feet. The side slopes are to be 1.33:1 (H:V) and it is desired to have the depth of flow constant at 2.0 feet.

  What is the average degree of consolidation for clay layer

A normally consolidated clay layer is 4 m thick (one way drainage). From the application of a given pressure, the total anticipated primary consolidation settlement will be 80mm. What is the average degree of consolidation for the clay layer.

  Determine the coordinates of the center of curvature c at t

A particle which moves with curvilinear motion has coordinates in meters which vary with time t in seconds according to x = 3.3t2 + 3.1t - 5.3 and y = 5.1t - 4.0. Determine the coordinates of the center of curvature C at time t = 1.9 s.

  Calculate the fluid velocities at the two ends

Assume frictionless flow in a long, horizontal, conical pipe. The diameter is 12 inches at one end and 6 inches at the other. The pressure head at the smaller end is 16 feet of water.

  How much will each leg shorten under the applied

given that E for the tube material is 70 GN/m2 and the stool legs are 75cm long, how much will each leg shorten under the applied compressive load (take g = 9.8m/s2)

  Estimate the average time headway of this traffic stream

An observer has determined that the time headways between successive vehicles on a section of highway are exponentially distributed and that 60% of the headways between vehicles are 15 seconds or greater.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd