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- A rigid building structure has the following particulars: Dimensions: 10 m x 20 mx 16.6 m high Located in an area classified as exposure B. Is neither open nor partially closed. Risk category: I Wind is 120 km/h and acts on the wall with the higher dimension. What is the external wind pressure on the side wall? O a. formula: wind pressure = qGC₂ = (0.613K₁K₂tKalV²) X G X Cp -248 N/m² O b. -896 N/m² O c. -386 N/m² O d. -333 N/m²A cylindrical wood covered with steel is the cross-section of the post of a signage as shown. The steel signage has a thickness of 20 mm with a 1.5 m width by 1 m height dimensions and has a density of 7500 kg/m. During storm, the wind strike the signage a pressure of 0.9 kPa. Neglecting the weight of the post and the stress from the torsional moment, find the following; Esee 200 GPa, Eod 10 Gna. Outside diameter of the post is 100 mm, inside diameter is 80 mm. a. The Ia of the transformed section with wood as base material. b. State of stress at point A. Principal stresses and maximum in plane shear stress of "C". d. The transformed stresses of "C" at 20° clockwise.An eight Storey city library is proposed to be constructed in Baguio. The structure shall be a reinforced concrete building (no shear walls). The weight per floor (including 1st floor) is estimated to be 1800 KN. The roof deck weighs 1700 KN. Solve for the Base Shear, V, for the condition above using the following formulas: 1. V =ZICKSW (SEAOC CODE 1974 - 4 TH Revision) Adopted by National Structural Code of the Philippines, 3rd edition (NSCP 1987) 2. V = ZICW/Rw National Structural Code of the Philippines, 4th edition (NSCP 1992), Volume I 3. Most critical formula for V as indicated in Sec. 208.5.2 of the NSCP Vol.1 5th edition (2001). 4. Most critical formula for V as indicated in the NSCP Vol.1 6th edition (2015). 1700 KN 100 KN 32 1800 KN La Tide Toeang Warg 32 1800 KN 32 259 32 1800 KN 32 1800 KN City Cam Cena, Nagun C Bengt Nearet Active failt Trace t Fae tunao Fa Segnet Nane Tut Fat Vear Maper 2012 Ma t et 10 00 32 1800 KN 3.5 20 Floor height: 1st floor 3.5m and the rest of the…
- A flat roof is subject to the following uniformly distributed loads: a dead load of 21 psf (pounds per square foot of roof surface), a roof live load of 12 psf, a snow load of 13.5 psf, and a wind load of 22 psf upward. (Although the wind itself is in a horizontal direction, the force that it exerts on this roof is upward. It will be upward regardless of wind direction. The dead, live, and snow loads are gravity loads and act downward.). If load and resistance factor design is used, compute the factored load (required strength) in pounds per square foot. Which AISC load combination controls? There are 5 load combinations below: Combination 1: 1.4DCombination 2: 1.2D+1.6L+0.5(Lr or S or R)Combination 3: 1.2D+1.6(Lr or S or R) +(0.5L or 0.5W)Combination 4: 1.2D+1.0W+0.5(Lr or S or R)Combination 5: 0.9D+1.0W How to deal with the wind load? If the wind load W=-22 psf, then the result of combination 5 will be -3.1 psf, which is negative. And the tensile strength of materials and…The load information for a floor type roof is given as follows. The design action (ULS) on the roof cladding is Dead load = 0.15 kPa Live load = 0.25 kPa External wind (ULS) = -2.5 kPa Internal wind (ULS) = 1.5 kPa or -0.5 kPaA flat roof is subject to the following uniformly distributed loads: a dead load of 29 psf (pounds per square foot of roof surface), a roof live load of 12 psf, a snow load of 13.5 psf, and a wind load of 22 psf upward. (Although the wind itself is in a horizontal direction, the force that it exerts on this roof is upward. It will be upward regardless of wind direction. The dead, live, and snow loads are gravity loads and act downward.) a. If load and resistance factor design is used, compute the factored load (required strength) in pounds per square foot. Which AISC load combination controls? (Express your answer to three significant figures.) R₁ psf -Select- b. If allowable strength design is used, compute the required load capacity (required strength) in pounds per square foot. Which AISC load combination controls? (Express your answer to three significant figures.) Ra = psf -Select-
- A flat roof is subject to the following uniformly distributed loads: a dead load of 21 psf (pounds per square foot of roof surface), a roof live load of 12 psf, a snow load of 13.5 psf, and a wind load of 22 psf upward. (Although the wind itself is in a horizontal direction, the force that it exerts on this roof is upward. It will be upward regardless of wind direction. The dead, live, and snow loads are gravity loads and act downward.) a. If load and resistance factor design is used, compute the factored load (required strength) in pounds per square foot. Which AISC load combination controls? b. If allowable strength design is used, compute the required load capacity (required strength) in pounds per square foot. Which AISC load combination controls?The concrete girders shown in the photo of the passenger car parking garage span 30 ft and are 15 ft on center. If the floor slab is 5 in. thick and made of reinforced stone concrete, and the specified live load is 50lb/ft2 , determine the distributed load the floor system transmits to each interior girder.The floor area of an apartment building is subjected to a uniformly distributed load of 45 psf over its surface area. Determine the loads acting on the floor beams AF, BG, and CH and the girders AC and FH.
- The roof of the building is subject to a wind force 600 lb. Resolve this force into its vertical and horizontal rectangular componentes.#1. Calculate the structural period (structure is dual system)? Does it need Concentrated force on top (please proved) H=27m H = 6m Superstructure BasementWhen a roof is subjected to downward wind load, which one of the following multiplication factors for dead loads is considered favourable in Australian Standard (load combination for ultimate limit state, considering both dead load and live load)? O 1.0 O 1.2 O 0.9 O 1.35