Compute the long-term deflection of the beam at midspan if it is constructed for almost 12 months under a service load (15KN/m for dead load and 10 kN/m for live load) as shown in the figure if the compressive strength of concrete is 28MPA and the yield strength of the steel reinforcement is 414MPA. (mm)

Compute the long-term deflection of the beam at midspan if it is constructed for almost 12 months under a service load (15KN/m for dead load and 10 kN/m for live load) as shown in the figure if the compressive strength of concrete is 28MPA and the yield strength of the steel reinforcement is 414MPA. (mm)

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.2.1P: A W1422 acts compositely with a 4-inch-thick floor slab whose effective width b is 90 inches. The...

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A normal-weight concrete rectangular beam has dimensions b = 285 mm by h = 634 mm with an effective depth of d = 614 mm and is reinforced with three - 25 mm diameter bars at the bottom of the cross-section. The concrete cylinder strength, f'c = 27.6MPa. The yield point of steel, fy = 414.7MPa. The beam carries a bending moment of 140 kN-m. Modulus of Elasticity of steel, Es = 200GPa. Solve for the following: 1. What is the gross moment of inertia of the section in mm4? 2. Compute the concrete compression stress at the top in MPa. 3. Compute the concrete tension stress at the bottom in MPa. 4. Compute the stress in steel in MPa.
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