Structural Analysis

Eagle Eye apps used in this course

Beam Analysis

Analyze single and continuous beams for shear, moment, stress, and deflection.

Open

Frame 2D Analysis

Analyze 2D frames for member forces, stresses, and deflected shapes.

Open

Truss 2D Analysis

Analyze 2D trusses for axial member forces, stresses, and deflections.

Open

Import from ETABS®

Import members and results from an ETABS model.

Open

Import from SAP2000®

Import members and results from a SAP2000 model.

Open

Import from Excel

Import beam members and results from Excel.

Open

RC Beam Deflection

Compute cracked-section and long-term beam deflection.

Open

Learning resources in this package

Lecture Slides

The complete set of slides used to teach this course.

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Solved Examples

Step-by-step worked examples from input to final results.

Coming soon

Animations

Concepts explained through clear, visual animations.

Coming soon

Course Tutorial Videos

Video walkthroughs and tutorials for every lesson.

Coming soon

Validation

Validation examples confirming accuracy against benchmarks.

Coming soon

The classical methods carry the reasoning of this course, and the matrix methods carry its later practice. By hand, only a few small structures can be solved per topic, and the stiffness method often remains abstract until much later. With the Eagle Eye apps, students solve a structure by hand, check the same structure in seconds, ask what-if questions that a hand solution would not allow, and see the stiffness method at work rather than only its notation.

In the classroom

• A truss solved by the method of joints on the board can be analyzed in the app immediately after, and the class compares the results member by member; the agreement builds confidence in both methods.
• The assembly of element stiffness matrices into the global structural matrix can be shown step by step, with the frame on screen next to the algebra.
• The elastic modulus or the section of one member of an indeterminate frame can be changed, and the class watches the moments redistribute, a behavior that would take a full lecture to compute by hand once.
• A deflection problem can be solved by a classical method and then verified against the app, with any difference in assumptions discussed in class.

Learning objectives

Upon completion of this module, students will be able to:

1. Understand the difference between 2D frame members and truss members in terms of degrees of freedom, degree of determinacy, internal forces, and support reactions.
2. Visualize in real time how element stiffness matrices are assembled into the global structural stiffness matrix.
3. Interactively visualize how the elastic modulus, the cross-sectional shape and size, and the applied actions affect deflections along the member length.
4. Compare the results of classical structural analysis methods with those obtained from the direct stiffness method.
5. Visualize in real time how the given inputs affect the distribution of shear forces and bending moments along the member length.

Topics covered