Example 5.3. Design of a Short Concrete Column. A tied short column of square cross-section is subjected to a factored axial load of 1500kN acting at an eccentricity of 100mm. Use a 40mm clear cover to the ties and a 20mm maximum aggregate size. Initially assume that the column is reinforced with four longitudinal bars. Design the column cross-sectional dimensions, longitudinal and transverse reinforcement.( Example adapted from Brzev & Pao, 2017) f = 25 MPa fy= 400 MPa

Example 5.3. Design of a Short Concrete Column. A tied short column of square cross-section is subjected to a factored axial load of 1500kN acting at an eccentricity of 100mm. Use a 40mm clear cover to the ties and a 20mm maximum aggregate size. Initially assume that the column is reinforced with four longitudinal bars. Design the column cross-sectional dimensions, longitudinal and transverse reinforcement.( Example adapted from Brzev & Pao, 2017) f = 25 MPa fy= 400 MPa

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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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

Example 5.3. Design of a Short Concrete Column. A tied short column of square
cross-section is subjected to a factored axial load of 1500kN acting at an eccentricity of
100mm. Use a 40mm clear cover to the ties and a 20mm maximum aggregate size.
Initially assume that the column is reinforced with four longitudinal bars. Design the
column cross-sectional dimensions, longitudinal and transverse reinforcement. (Example
adapted from Brzev & Pao, 2017)
f = 25 MPa
fy = 400 MPa

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Step 1: Given Data:

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Step 2: Column dimensions calculation

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Step 3: Longitudinal reinforcement ratio

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Step 4: Interaction diagram

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Step 5: Check the feasibility of the solution with Interaction diagram

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Step 6: Reinforcement detailing

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Step 7: Actual reinforcement spacing

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Step 8: Check for transverse reinforcement

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Step 9: Design drawing

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