A reinforced concrete beam having a width of 300mm and a overall depth of 600 mm is reinforced with 2-25mm compression bars placed 60 mm from extreme concrete & 6-25mm tension bars with concrete covering of 60 mm from the centroid of the bar group. Concrete Strength, fc' = 27 MPa, Steel Strength, fy = 415

A reinforced concrete beam having a width of 300mm and a overall depth of 600 mm is reinforced with 2-25mm compression bars placed 60 mm from extreme concrete & 6-25mm tension bars with concrete covering of 60 mm from the centroid of the bar group. Concrete Strength, fc' = 27 MPa, Steel Strength, fy = 415

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 9.1.2P

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Concept explainers

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.

Question

A reinforced concrete beam having a width of 300mm and
a overall depth of 600 mm is reinforced with 2-25mm
compression bars placed 60 mm from extreme concrete &
6-25mm tension bars with concrete covering of 60 mm
from the centroid of the bar group.
Concrete Strength, fc' = 27 MPa, Steel Strength, fy = 415
MPa.
A. Determine the balanced steel area considering the
contribution of the compression steel.
B. Determine the maximum tension steel area allowed by
the code.

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