1. Course Name: PRE-STRESS LAB
Name: SABIHA SANJIDA
ID NO: 10.01.03.032
YEAR: 4TH, Semester: 2nd
Section: A

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CONTENT:
Definition.
Types.
Examples.
Basic Principals.
Curves.
Effect.
Differences.

4. A tension or compression stress created in a
structural member by the application of a
length wise axial load.

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Loads pass through the centroid
of the section.
• Member is straight.
• Load less than buckling load.

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Tensile stress:
It is an Axial Stress The force is
along the axis of the member)
 It is a force that "EXTENDS“
the member. (Pulling it apart)
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Compressive stress:
It is also an Axial Stress
 It is a force that "CONTRACTS“
the member. (Crushing it inwards)
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7. EXAMPLES OF
TENSILE AXIAL STRESS
Chain Carrying a Load
Tension Cable On a Bridge

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Decorative Column
in architecture
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Steel Structure Of
High Rise Building

11. The difference between the cracking patterns of the two
beams (B-1 & B2) can be attributed to the effect of the
compressive axial stresses that reduced the load tensile
stresses and prevented the extension of the cracks.

12. DIFFERENCE AMONG
AXIAL, FLEXURAL, NORMAL &
BEARING STRESS