The beam shown has a 30-ft simple span, fc' 5000 psi, fpu = 250,000 psi, and the %3D initial prestress is 160,000 psi, fpy 0.85fpu, and 10% losses. %3D (a) Calculate the concrete stresses at the top and bottom of the beam at midspan immediately after the tendons are cut. (b) Recalculate the stresses at midspan after assumed prestress losses in the tendons of 20%. (c) What maximum service live load can this beam support in addition to its own weight if allowable stresses of 0.6fc' in compression and 12fc' in tension are permitted? 21 in. 24 in. 0.9 in.2 3 in. 14 in.-

Q: Help

A: Given: steel in tension zone: n = 6 bars dia. = 40 mm Beam section: b = 300 mm h = 585 mm L = 8000 m…

Q: For pretensioned axially tensioned member, how to calculate the effective prestress established in…

A: 1. The stress remaining in the concrete due to prestressing after the loss of prestress.2. Loss of…

Q: Question 2: In question 1, if the beam height (h) is changed to 550mm. Also, the beam reinforcement…

A: Note:- “Since you have posted a question with multiple sub parts, we will provide the solution only…

Q: 30 kip W = 2 kip/ft A В 10 ft. 20 ft. 30 ft. f. = 5000 psi 30 in. 36 in. 8 #9 bars 3 in. 3 in. 16…

A: Note-Since we answer one subpart at a time so we will answer the first three. Please resubmit…

Q: Assuming concrete below the neutral axis to be cracked, the shear stress across the depth of a…

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Q: WD = 1.4 kips/ft plus weight of beam WL = 1.5 kips/ft %3D (a) 20 ft 21.5 in. 24 in. (b) 3 No. 9 bars…

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Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.