# Ch 7: Basics of Structural Engineering

### About This Chapter

## Basics of Structural Engineering - Chapter Summary

The informative and engaging lessons in this chapter will show you the fundamental concepts of structural engineering. Our expert instructors walk you though several structural engineering concepts, such as balance, connections, stability and structures. As you move through the chapter, try taking the included lesson quizzes to see how well you understand these engineering concepts. You can reach out our instructors at any time if you have any questions and access the chapter material using any computer, smartphone or tablet. After finishing these lessons, you should be able to:

- Compare static and dynamic balance
- Understand the difference between flexible and rigid connections
- Write the center of buoyancy formula
- Comprehend statically determinate and indeterminate calculations
- Assess the use of trusses and beams on statically determinate and indeterminate structures
- Explain longitudinal, lateral and directional stability
- Differentiate between static and dynamic stability

### 1. Static Balance: Definition & Examples

Statics is the analysis and study of objects in equilibrium, from bicycles to skyscrapers. The ability to balance all forces is very important to the stability of our world. When static balances fail, it can cause a structural collapse and catastrophe!

### 2. Center of Buoyancy: Definition & Formula

The center of buoyancy refers to the center of gravity of the volume displaced by a body. Learn about buoyant forces and understand the definition and formula of buoyancy through the given examples.

### 3. Statically Determinate: Definition, Equation & Examples

The forces and reactions in statically determinate structures can be determined using a free-body diagram and the static equilibrium equations. Learn about the definition, equation, and examples of statically determinate structures.

### 4. Statically Indeterminate: Definition, Calculation & Examples

Statically indeterminate structures are structures in which internal forces and support reactions cannot be calculated using the static equilibrium equations. Explore the definition, calculation, and examples of statically indeterminate structures.

### 5. Statically Determinate & Indeterminate Structures: Trusses & Beams

Learn about the statically determinate and indeterminate structures of trusses and beams. Trusses and beams are structures that work together to fulfill a purpose, that either needs or does not need material properties to analyze the structure to be statically determinate or statically indeterminate.

### 6. Settling Basin: Definition & Design

In this lesson, you will learn what a settling basin is, its different parts, and what it is used for. You'll also get an understanding of what goes into the design of a settling basin.

### 7. Erie Canal: Construction & Completion

This lesson is going to go over the construction and completion of the Erie Canal. You'll also learn how it has changed after its original completion in the 19th century.

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### Other Chapters

Other chapters within the Introduction to Engineering course

- Materials & Properties in Engineering
- Stress & Strain in Engineering
- Temperature & Heat in Engineering
- Tools & Processes in Engineering
- Pressure in Engineering
- Tolerance in Engineering
- Basics of Chemical Engineering
- Electricity in Engineering
- Electrodynamics
- Physics Concepts in Engineering
- Acoustics in Engineering
- Building Construction & Properties in Engineering
- Electrical Interference in Engineering