Q#1 (a) Design the cross-section of the simply supported beam designed in class considering a limit in the beam height imposed by the architect of 20 in. Assume a distributed live load of 2.0 kip/ft, a dead load (including the self-weight) of 1.0 kip/ft, concrete strength of 4000 psi, and Grade 60 steel bars. Comment on the result by comparing the two designs using a shorted cross section. 24' Q#1 (b) Re-design the cross-section of the simply supported beam designed in problem-1 using stronger concrete with a compressive strength of 5,000 psi. In your design assume a distributed live load of 2.0 kip/ft, a dead load of 1.0 kip/ft and Grade 60 steel bars. However, in this case the dead load does not include the self-weight. Comment on the result by comparing the two designs using different compressive strength and accounting for the self-weight.

Q#1 (a) Design the cross-section of the simply supported beam designed in class considering a limit in the beam height imposed by the architect of 20 in. Assume a distributed live load of 2.0 kip/ft, a dead load (including the self-weight) of 1.0 kip/ft, concrete strength of 4000 psi, and Grade 60 steel bars. Comment on the result by comparing the two designs using a shorted cross section. 24' Q#1 (b) Re-design the cross-section of the simply supported beam designed in problem-1 using stronger concrete with a compressive strength of 5,000 psi. In your design assume a distributed live load of 2.0 kip/ft, a dead load of 1.0 kip/ft and Grade 60 steel bars. However, in this case the dead load does not include the self-weight. Comment on the result by comparing the two designs using different compressive strength and accounting for the self-weight.

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

Q#1 (a)
Design the cross-section of the simply supported beam designed in class considering a limit in the beam
height imposed by the architect of 20 in. Assume a distributed live load of 2.0 kip/ft, a dead load
(including the self-weight) of 1.0 kip/ft, concrete strength of 4000 psi, and Grade 60 steel bars.
Comment on the result by comparing the two designs using a shorted cross section.
24'
Q#1 (b)
Re-design the cross-section of the simply supported beam designed in problem-1 using stronger
concrete with a compressive strength of 5,000 psi. In your design assume a distributed live load of 2.0
kip/ft, a dead load of 1.0 kip/ft and Grade 60 steel bars. However, in this case the dead load does not
include the self-weight.
Comment on the result by comparing the two designs using different compressive strength and
accounting for the self-weight.

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