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- Determine the external wind pressure on the roof of the rigid-gabled frame of a building for an essential disaster operation center shown in Fig. P2.14. The building is located in Kansas City, Missouri, where the terrain is representative of exposure C, and the basic wind speed for risk category IV buildings is 120 mph. Assume the wind direction is normal to the ridge, as shown in the figure.A two-storey light storage warehouse has interior columns that are spaced 12 ft apart in two perpendicular directions. If the live loading on the roof is estimated to be 25 ??/??^2, determine the reduced live load supported by a typical interior column at (a) the ground-floor level, and (b) the second-floor level.Determine the external wind pressure on the roof of the rigid-gabled frame of a building for an essential disaster operation center shown in Fig. P2.14. The building is located in Kansas City, Missouri, where the terrain is representative of exposure C and the basic wind speed for risk category IV buildings is 120 mph. Assume the wind direction is normal to the ridge, as shown in the figure. Use Kd 50.85 for main wind-force resisting systems, and Ke =1
- According to the NBCC 2015, a building with multiple windows and doors with a non-uniform distribution, and no dominant opening will have an internal pressure coefficient, ???, of _____ to evaluate the maximum internal wind pressure acting towards the wall surfaces.a) -0.45 b) 0.75 c) 0.3A concrete wall is 1.2 meters high and 0.203 meters thick. Concrete has a specific gravity of 23,7 kN/m3 In connection with heavy rain, water fills between the wall and the ground. The height of the water is h . The wall rests on the ground without any form of anchoring. A)Calculate the maximum height,h , that the rainwater can reach before the wall topples B)Calculate how thick the wall must be so that it does not topple over if h= 1,2mConsider a structure that is 20 m x 80 m with a 20 degree gable roof. If S = 2.0 kPa, what is the total weight of the snow and rain that can accumulate on the roof (unfactored)?
- A closed storage building is located on open flat terrain in central Ohio. If the sidewall of the building is 20 ft high, determine the external wind pressure acting on the windward and leeward walls. Each wall is 60 ft long. Assume the roof is essentially flat.The dimensions of a 15 ft high warehouse located near Atlanta, Georgia are shown. Determine the wind pressures based on the following information: risk category 2, exposure category C, Kzt= 1.0, and Ke = 1.0. Use the Envelope Procedure Part 2 to calculate the wind pressures. Show the pressures on a section view through the end zone. Show the pressures on a section view through the interior zone.I. Single choice questions 1 . Among the following factors, which determines the level of the seismic action ( )○1 mass of building；○2 seismic site intensity；○3 dynamic property of building；○4 building grade（A）○1○4 ； （B）○2○3○4 ； （C）○3○4 ； （D）○1○2○32. It is assumed that the fundamental period of reinforced concrete frame structure is located between Tg~5Tg of acceleration design response spectrum. How the fundamental period of structure T1 and bottom horizontal seismic action Fek would change, if the contribution of infilled wall to structural stiffness is considered during structural analysis?（A）T1↓, Fek↑ （B）T1↑, Fek↑ （C）T1↑, Fek↓ （D）T1↓, Fek↓3. The purpose of restricting depth to width ratio of multi-storey masonry building is to ( )（A） avoid shear damage to building（B） avoid global bending damage to building（C） avoid differential settlement of building（D） reduce global stiffness of building4. Which of the following is not a common seismic failure to frame beams: ( )（A） Oblique…
- Consider the building in Figure P2.22, which has awidth into the page of 35 ft. Maximum inundation height,hmax, and flow velocity, umax, have been determined as 33 ftand 20 ft/sec, respectively. Calculate the hydrodynamic load applied at floor level on the wall IJKL for Load Cases 2 and 3, due to outflow. If windows are inundated, calculate the expected hydrostatic loading on the adjacent outside walls due to water retained by the floor, or floors. Finally, calculate the debris impact load to be applied to the free-standing column CD. Assume Itsu = 1.0 and Cd = 1.25.What is the effect of wind load on tall buildings? calculate wind pressure by equivalent state method at 30 cm height where the basic wind speed is 40 m/sec. At 30 m height probability factor=1.0; terrain roughness factor=1.12; topography factor=1.0; and importance factor=1.0An essential 5-story facility structure is conceptualized with an intermediate reinforced concrete moment frame. It is located on a site in zone 4 with a soil profile type Sp. The site is situated 13 kilometers from a potential seismic source type A. The story heights are 5.4 m at the ground floor and 4.3 m for the the 2nd and 5th floors. The story dead loads are 7600 kN from the bottom up. The plan dimensions are 55 m by 37m. The moment frames consist of two four bay frames in the transverse direction and two seven bay frames in the longitudinal direction. Determine the following: 18) Story shear at 4th floor 5.732 kN 5,261 KN 5,439 kN 5.814 kN