WEEK 4: STRUCTURAL SYSTEMS

This week's reading and PowerPoint helped me understand how important structural systems are to a building, even though interior designers generally do not design the actual structural system. The main purpose of a structural system is to carry the loads of a building and transfer those loads down to the foundation. The three main structural systems discussed were bearing walls, stud walls, and structural frames. I learned that interior designers need to understand these systems because the structure of a building can affect the interior layout, walls, openings, and other design decisions. If a project requires changes to the structure, an architect or structural engineer may need to be involved.

I also learned about the basic requirements of a good structural system, including stability, strength and stiffness, and economy. Buildings have different types of loads that the structure needs to handle, including tension, compression, and deflection. The PowerPoint also introduced several different structural forms, such as cables, post-and-beam systems, trusses, arches, and shells. These systems all work differently to transfer forces through a building.

Another part I found interesting was learning how structural systems have changed over time. Older buildings used systems such as heavy timber and mortise-and-tenon construction, while modern buildings commonly use materials such as wood, steel, masonry, and concrete. It was interesting to see how construction methods have developed while still using some of the same basic ideas of transferring loads and creating stable structures.

One alternative building system that I researched further is rammed earth construction. Rammed earth is a system where layers of earth are placed into forms and compacted to create thick walls. The finished walls can be structural and have a unique natural appearance. This system was included in our PowerPoint as an alternative building system. Rammed earth is also interesting from a sustainability perspective because it can use earth as a major building material instead of relying completely on conventional materials.

One benefit of rammed earth is its thermal mass. The thick walls can absorb heat during the day and release it later, which can help balance indoor temperatures. The Whole Building Design Guide discusses the use of rammed earth walls in climates with large temperature changes because the walls can help store and release heat over time. This makes rammed earth especially interesting when thinking about sustainable building design and energy use.

From an interior design perspective, rammed earth also creates a very different aesthetic than typical drywall or framed construction. The layers in the earth become visible and can create a natural texture and color within the space. Instead of covering up the structural wall with another finish, the structure itself can become part of the interior design. I think this is a good example of how structure and interior design can work together instead of being completely separate.

Overall, this week's material helped me understand that interior designers need to know the basics of structural systems even though we are not usually responsible for designing them. Understanding how a building carries its loads helps designers make better decisions about layouts and spaces. I also liked learning about alternative systems because it showed me that buildings do not have to rely only on conventional wood, steel, and concrete construction. Systems like rammed earth can provide structural, aesthetic, and environmental benefits when they are appropriate for the project and location.