A 200 x 400mm prestressed concrete beam with a simple span of 8m carries a dead load and live load, including its own weight of 10 kN/?m and presstressed with a final force of 100 kN at an eccentricity of 100mm below the neutral axis. A. Find the stress at the top of the concrete at beam ends in kPa. B.Find the stress at the bottom of the concrete at beam ends in kPa.

A 200 x 400mm prestressed concrete beam with a simple span of 8m carries a dead load and live load, including its own weight of 10 kN/?m and presstressed with a final force of 100 kN at an eccentricity of 100mm below the neutral axis. A. Find the stress at the top of the concrete at beam ends in kPa. B.Find the stress at the bottom of the concrete at beam ends in kPa.

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

A pre-tensioned rectangular beam 150mm wide and 300 mm depth is prestressed with three straight tendons each having a cross-sectional area of 50 mm? to an initial stress of 1200 N/mm?. The tendons are located at 100 mm from the soffit of the beam. If the modular ratio is 6 the loss of prestressing force (in kN up to one decimal place) due to the elastic deformation of concrete is
Concrete beam.
T beams
Question 5 A rectangular presressed concrete beam of span 15 m and width 500 mm is loaded with a live load of 30 kN/m. The prestressing force is KN. [Take permissible stresses in concrete and steel as 15 MPa and 1200 MPa respectively]
A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with 4-20-mm-diameter bars and at the top with 2-16-mm bars. The concrete cover to bar centroid is 80 mm and at the bottom is 70 mm. use concrete strength f'= 21 MPa and steel yield strength fy=415 MPa for all bars. 1. Determine the tensile steel ratio when the beam is in positive bending. a. 0.01567 b. 0.01283 c. 0.01169 d. 0.01923 2. Determine the nominal moment capacity in kN-m of the beam in positive bending. a. 188.30 b.167.70 c.218.96 d.193.68 3. Determine the tensile steel ratio when the beam is in negative bending. a. 0.00406 b. 0.00475 c.0.00383 d. 0.00508 please provide a complete solution so I can understand. Very much appreciated to solve it early !!
RCC.
A prestressec concrete beam 300 mm wide and 600 mm deep is prestressed using 5 high tension bors f 12 mm o provide at 220 mm from the soffit of the beam. The effective stress in the steel is 800 N/ m Find the bending that niust be applied to the section to just auoid tension at the soffit of the beam.
Pre-stressed.
CAN SOMEONE HELP ME SOLVE THIS REINFORCED/PRESTRESSED CONCRETE PROBLEM. USE NSCP 2015 A concrete beam has a width of 304.8 mm and an effective depth of 495.3 mm. It is reinforced with 14.194 cm2 steel bars with fc′ = 17,237.5 kPa (n = 10). Determine the flexural stresses caused by a bending moment of 84.1 kN·m
A reinforced concrete beam experiences a load as shown. It has a base of 350 mm, and an effective depth of 600 mm, with 4 – 25 mm diameter rebars. The concrete has a compressive strength of 27.6 MPa, Determine the maximum distributed load that the beam can carry. Assume that the allowable stress in steel is 167 MPa (instead of 160 MPa). w 1.5 m 10 kN 1.5 m 5 m