A simple beam having a length of 4.5m, a width of 300mm, and an overall depth of 700mm has an effective depth of 610mm. It is reinforced with a concentrated load of 450kN at midspan and a factored axial compressive force of 180 kN. Concrete weighs 23.50 kN/m^3. Concrete strength is f'c = 20.70 MPa. a. Which of the following most nearly gives the value of the modified moment Mm to be used at the critical section for shear? 93.83 kN-m b. Which of the following most nearly gives the value of the shear strength, Vc at the critical section for shear using detailed calculation? 169.95 KN c. Which of the following most nearly gives the nominal shear force to be carried by the shear reinforcements at the critical section for shear? 104.28 KN

A simple beam having a length of 4.5m, a width of 300mm, and an overall depth of 700mm has an effective depth of 610mm. It is reinforced with a concentrated load of 450kN at midspan and a factored axial compressive force of 180 kN. Concrete weighs 23.50 kN/m^3. Concrete strength is f'c = 20.70 MPa. a. Which of the following most nearly gives the value of the modified moment Mm to be used at the critical section for shear? 93.83 kN-m b. Which of the following most nearly gives the value of the shear strength, Vc at the critical section for shear using detailed calculation? 169.95 KN c. Which of the following most nearly gives the nominal shear force to be carried by the shear reinforcements at the critical section for shear? 104.28 KN

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.7P: Estimate the transverse tensile strength of the concrete in Problem 12.6.

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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 simple beam having a length of 4.5m, a width of 300mm, and an overall depth of 700mm has an effective depth of 610mm. It is reinforced with a concentrated
load of 450kN at midspan and a factored axial compressive force of 180 kN. Concrete weighs 23.50 kN/m^3. Concrete strength is f'c = 20.70 MPa.
a. Which of the following most nearly gives the value of the modified moment Mm to be used at the critical section for shear?
93.83 kN-m
b. Which of the following most nearly gives the value of the shear strength, Vc at the critical section for shear using detailed calculation?
169.95 KN
c. Which of the following most nearly gives the nominal shear force to be carried by the shear reinforcements at the critical section for shear?
104.28 kN

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