**Problem 8.75**A model of a high-rise office building at 1/550 scale is tested in a wind tunnel to estimate the pressures and forces on the full-scale structure. The wind-tunnel air speed is 20 m/s at 20°C and atmospheric pressure, and the full-scale structure is expected to withstand winds of 200 km/h (10°C). If the extreme values of the pressure coefficient are found to be 1.0, -2.7, and -0.8 on the windward wall, side wall, and leeward wall of the model, respectively, what corresponding pressures could be expected to act on the prototype? If the lateral wind force (wind force on building normal to wind direction) was measured as 20 N in the model, what lateral force might be expected in the prototype in the 200 km/h wind?

Introduction- Atmospheric pressure, denoted by P, is the weight of air per unit surface area of the globe . Atmospheric pressure is inversely related to height, with a standard value of 760 mm Hg. Absolute Pressure: When pressure is measured in relation to absolute zero, it is referred to as absolute pressure.The pressure exerted at the surface of a body by a column of air in an atmosphere is known as atmospheric pressure. The pressure fluctuates with altitude as well as weather patterns. The standard is defined as one atmosphere on Earth and represents an average atmospheric pressure at sea level.The relation between pressure and wind speed, Pressure=12×density of air ×wind speed2 ×shape factor The windward wall pressure, Pwind ward=137500 Pa The wind pressure or leeward wall, Pleeward=137500×-8Pleeward=-110000Pa The wind pressure on the side wall, Pside wall=137500×-2.7Pside wall=-371250Pa The force on the wall will be a factor of 550. 550×20=11000 N on wind wall. 550×2.7=1485 N on the side wall. 550×0.8=440 N leeward wall

Answered: cale is tested in a wind tur prces on…

Engineering

Civil Engineering

cale is tested in a wind tur prces on the full-scale stru $ 20 m/s at 20°C and atmo

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

PLEASE ANSWER NUMBER 5.32 IN MECH 222 : PLEASE GIVE DETAILED SOLUTIONS AND CORRECT ANSWERS. I WILL REPORT TO BARTLEBY THOSE TUTORS WHO WILL GIVE INCORRECT ANSWERS.
In the simplified design base shear procedure, the near source factor of buildings in zone 4 need not be greater than if no structural irregularities are present 1.2 1.5 1.0 none of the OTHER OPTIONS The coefficient for over-strength and global ductility capacity of a steel special moment resisting frame is 8.5 8. 6. none of the OTHER OPTIONS
Please answer it asap for an upvote. El
The distributed load shown is supported by a box beam shown using five pieces of 50mm x 300mm plank of Yacal timber arrange as shown. Determine the nearest maximum safe value of w in N/m that will not exceed a shearing stress of 1.2MPa. WIN 6m¶ 1.5m¶
ASAP
reinforced conceret design Analysis Method Determined structure. In-determined structure Direct design method (D.D.M). Equivalent frame method (E.F.M). Stiffness method. Yield line theory. ACI coefficient (method three) (approximate method). Moment distribution method. Slop deflection. Analysis and design by using computer programs. explanin each one summery . please
Determine the external wind pressure on the roof of the rigid-gabled frame of a buikding for an essential disaster operation center. The building is located in Kansas City, Missouri, where the terrain representative of exposure C and the basic wind speed for riak category IV building is 120 mph. Assume the qind dire tion is normal to the ridge, as shown in the figure. Use Kd=0.85 for main wind-force resisting system and Ke=1.
need an answer for these
Evaluate the wind load on the bridge deck with the profile shown in the figure. The bottom of the bridge deck is 7m above the ground. Assume design wind speed is 35 m/s. B = 10.5m dot det = 2.5 +1 = 3.5m 3.0m 4.5m 3. Om To find the wind average speed: H = 7 +0.5 (2.5+1) = 8.75m Not to Scale 7.0m 2.5m 1.0m
A 100 X 100 mm in cross- section and 400 mm log is lbaded to failure by either two loads applied at the third pointc. Determine the compressi ve strength I f'c). a con centrated load at midspan or by fr = 0•62 L [ f!c (modulus of rupłure D CNSCP $ pees) fr is dctermined by flexural fr MorC GMcr for formula fr: %3D where, b= width h= height of Mcr = cracking of beam beam moment %3D
Question 3 of 10 View Policies Current Attempt in Progress Answer: Wo A The steel beam has the cross section shown. The beam length is L = 5.8 m, and the cross-sectional dimensions are d = 400 mm, bf = 210 mm, tf = 14 mm, and tw = 7 mm. Calculate the largest intensity of distributed load wo that can be supported by this beam if the allowable bending stress is 160 MPa. A 72 Save for Later Wo B 72 C kN/m - / 10 E ||| d 600 Attempts: 0 of 3 used Submit Answer
Answer this with complete solutions in 30 minutes. ASAP THANKS!