Download - Presentation on Axial Force
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WELCOME TO MY
PRESENTATION
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AHSANULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYDEPERTMENT OF CIVIL ENGINEERINGCE-416, Prestress Concrete Design Sessional
Course Teacher- MD. Galib Muktadir
Presented by-Ramim Al-AkramID-10.01.03.120
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Presentation on-Axial Force
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An axial force is any force that directly acts on the center axis of an object. These forces are typically stretching force or compression force, depending on direction. In addition, when the force load is even across the form’s geometric center, it is concentric, and when it is uneven, it is eccentric. Unlike many acting forces, an axial force is often its own counter; an object pulled or pushed evenly in opposing directions doesn’t move.
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Figure of Axial Force
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Axial force is a force that tends to elongate or shorten a member & is normally measured in pounds. It is a system of internal forces whose resultant is force that is acting along the longitudinal axis of a structural member or assembly.
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Nature of axial force: These forces are typically stretching force or
compression force, depending on direction. Shear forces occupies a similar position to axial
force, but operates perpendicular to the centre axis of the object.
When a force is acting directly on the central axis,
it is an axial force. These force will often compress the axis from either end or stretch the axis in two opposing directions; as a result the object typically does not move.
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Considerations:
Understanding the theory
It’s limitations, It’s supplications for design
Analysis of axial members
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Calculation Steps:
Identify the components. Axial force is determined by width, effective length, and load and is measured in kilo pounds or kips (1,000 pounds of force).
Used to also solve statically indeterminate problems by using superposition of the forces acting on the free-body diagram
First, choose any one of the two supports as “redundant” and remove its effect on the bar
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Thus, the bar becomes statically determinate
Apply principle of superposition and solve the equations simultaneously
Use an axial load calculator. Draw the axial force diagram (free-hand) taking note of each point where a transition occurs and labeling and measuring this section and and solve for axial force.
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Calculation Formula :Axial loading occurs when an object is loaded so that the force is normal to the axis that is fixed, as seen in the figure. Taking statics into consideration the force at the wall should be equal to the force that is applied to the part.
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Multiple Loading:In some cases there could be multiple axial loads placed on an object, in that case the load on each section would need to be determined by using statics, as can be seen in the following figure.
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Axial Force on different members:
Column Beam
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Axial Force on different members:
Shaft Cylinder
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