Design Problem 3The pretensioned circular beam shown below has straight cables with initial stress of 1500 MPa and final stressess after losses of 100 MPa.The beam span length is 7.50 m. Determine the deflection at the beam centering (use initial). Ec = 27,000 MPa. Assume the concrete isuncracked. The prestress steel is Aps = 874.195 mm². Unit weight of concrete is 24 kN/m³. Concrete cover is 100 mmDL Beam weight onlyLL = 12 kN/mD=700 mm

Answered: Design Problem 3 The pretensioned…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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In all Questions use the Working Stress Method and the flowing material 25 MPa and f, = 420 MPa. properties f = If the stress in the top fiber of the concrete is f = 12.5MPa and in the steel is 400 MPa. Ec 25000 MPa, Es 200000 MPa. Determine the following: 1-Maximum strain in concrete 2- Maximum strain in steel and 3- Flexural strength of the section (the moment M) P 500 mm 300 mm
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A concrete floor slab 100 mm thick is cast monolithic with concrete beams 2.0 m on centers. The beams have a span of 4.0 m, web width of 250 mm and overall depth of 500 mm. The tensile reinforcement consists of 6 - ø20 mm bars in two rows with 25 mm vertical clear spacing. Use material strength f'c = 21 MPa and fy = 415 MPa. Calculate the following considering a T-geometry: Effective flange width of an interior beam in mm = _______ Depth of uniform stress block at ultimate stage in mm to the neares whole number = _______ Tensile steel strain compatible with concrete strain of 0.003 in 3 decimal places = __________
Problem #1. The base of a rectangular reinforced concrete beam is 300mm and the effective depth is 550mm. Concrete compressive strength on the 28" day is 24MPA and steel yield strength is 415MP.. Determine : a. The depth of compression block (in mm, 2 decimal places), the strain in the tension steel (5 decimal places) and ultimate moment capacity (in KN.m, nearest tenth) of the beam if it is reinforced with 4-32mm diameter bars. b. The depth of compression block, the strain in the tension steel and ultimate moment capacity of the beam if it is reinforced with 4-20mm diameter bars.
Please solve it with all the steps
please include also the given, required and the solution thank you
Material is CONCRETE. Please check all criteria and show work clearly.
A rectangular reinforced concrete beam has a length of 14 m is simply supported atboth ends. The width of beam is 350mm and the overall depth is 550 mm. Determine the area of the steel reinforcements if the beam is to carry a DL = 15kN/m and LL =18kN/m. The concrete strength fc = 25 and steel yield fy = 400 ��. Use 60 mm concretecover.

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