## Structures 1 PortfolioAugustus Abbey

This portfolio details work done in my sophomore year of undergraduate studies at Clemson University in Structures 1 taught by Dr. Michael C. Kleiss. All collaborative work will be stated when explaining the project.

Project 1 - Static Equilibrium

The goal for this project was to creatively balance a one pound cube using nothing but string. The purpose was to understand how loads, in this instance a dead load, can affect a structure and how this one pound cube can achieve equilibrium. Project done with Kevin Crumley.

Final Model

We started out with testing out different designs to try to achieve equilibrium while also trying to make the model aesthetically pleasing. We tested out these designs through initial sketches and study models.

Initial Study Model and Process Drawings

Our final design is seamless since we decided to not use any fish hooks to connect the string to the model but instead we put indents around the cube and on the base to hold the cube up efficiently.

Final Model Front and Back View
Project 2 - Structural Live Load Test

The goal of this project was to test and analyze two vertical loads would affect a horizontal structure and how the adding weight to the vertical loads would affect the structure and it's efficiency. Project done with Kevin Crumley.

When we were given the project guidelines, we started the process of finding the best bridge structure to use. After looking through some designs, we landed on the Camelback design.

Process Sketches done in Design Process Phase

We decided to use slightly lamented top chords with diagonal cross bracing on top of double bottom chords. We placed two dowels (one on either side of the bridge) on top of the double bottom chords to stabilize the bridge. The next thing we did was to place diagonal bracing on the inside of the bridge as well to stabilize the bridge even more.

Photos showing details of Final Bridge. (Final Bridge made out of 1/8" Basswood Dowels)

Our bridge was able to hold about 21 pounds before it finally snapped. The reason why it snapped was because the two lamented parts of the bridge weren't exactly the same causing the bridge to be slightly uneven. When the loads were placed, the loads also weren't directly placed on the nodes. This combination of factors caused our bridge to slightly lift off the table as more weight was added on. Finally the bridge twisted and snapped under all pressure it was under.

Project 3 - Design of Trusses

The goal of this project was to demonstrate our knowledge of vector active structures by applying this knowledge to our own design of 4 different trusses : One perfectly symmetrical truss, One asymmetrical truss, One pitched/sloped truss, and One curved truss.

In the beginning, I started doing research on truss designs on the internet and then I just started sketching out some ideas for truss designs and from that I started a process of elimination to decide which truss design I liked best.

Symmetrical Truss Design
Asymmetrical Truss Design
Sloped Truss Design
Curved Truss Design
Final Truss Design Board (Trusses made of Chipboard)

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