Upload
mashrekur-rahman-viki
View
160
Download
4
Embed Size (px)
DESCRIPTION
Presentation of Axis System CE-416 Prestressed Concrete Design Sessional Created & Uploaded by Mashrekur Rahman ID: 10.01.03.001 Department of Civil Engineering Ahsanullah University of Science and technology
Citation preview
Ahsanullah University of Science and Technology Department of Civil Engineering
CE-416Prestress Concrete Design Sessional
Presentation on
Axis System
Presented byMashrekur Rahman
Student ID: 10.01.03.001
Let us draw a line!
Engineers Use Axes!
What is an Axis?
An unlimited line, half-line, or line segment serving to orient a space or a geometric object, especially a line about which the object is symmetric.
2D and 3D Axes
Uses in Structural Analysis
1
• Represent the direction of internal and external forces
2
• Denote the relative position of structural members
Consider a Simply Supported Beam
External Forces
Local & Global Axes
Axial Force in a Beam
Rotational Axis
Torsional Action in Structural Members
Movement about Rotational Axis in a Prestressed I-beam
Axis System to analyze I-beam
Major Axis gives the algebraically larger moment of inertia.Minor Axis gives the relatively smaller moment of inertia.
Axis System and Prestressed Concrete
Axis system is the cradle of design and analysis of Prestressed Concrete members.
Feel Free To Ask Questions