If the center of gravity moves outside the base area, gravity will make the structure topple over. Some general rules about structural stability: the lowest the center of gravity, the more difficult it is to make a structure topple over, therefore the more stable is the structure. It is more difficult to make a structure with a wide base topple over so, the wider the base therefore, the more stable the structure.
The shape and the material used to built a structure determine its resistance. Resistance is the capacity of a structure to bear the tensions that it is subjected to without breaking. It depends on material used to build the structure, and the shape of the structure. All materials have a breaking stress, which is the maximum force per unit of surface area that they can bear without breaking.
The shape of the structure determine its rigidity. Rigidity also comes from triangulation and welding joints. To design a polygon-shape structure that can be deformed we use triangulation. This means that all polygons formed by the bars must be based on the triangle. This is called bracing and it prevents square frames from being deformed.
So long as the entire structure has its center of gravity below the ground, it will never topple. All structures including skyscrapers resist sinking into the soil beneath them despite their heavy load due to their well designed foundation that takes into account the load of the superstructure and the bearing capacity of the soil available at a particular stratum at which the foundation rests.
So, why do we need skyscrapers? The simple answer: more room for more workers, or in the residential frame, more residents. In line with rising population density, and advancements in engineering, height limits around the world are being revisited and revised to maximise space for commercial and residential growth. In theory, skyscrapers maximize land use, increase urban density, and lead to lower energy use.
For instance, skyscrapers tend to be built further apart than low-rise buildings. In addition to being resistant to high winds, skyscrapers have a unique opportunity to take advantage of them as a sustainable energy source.
The Bahrain World Trade Center, built by multinational engineering company Atkins, includes stylish-yet-practical wind turbines in its design. A team of researchers at MIT has designed one of the strongest lightweight materials known, by compressing and fusing flakes of graphene, a two-dimensional form of carbon.
The new material, a sponge-like configuration with a density of just 5 percent, can have a strength 10 times that of steel. Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Social studies What factors make structures strong and stable?
Social studies. Ben Davis October 13, What factors make structures strong and stable? What does the strength of a structure depend on? What is structure strength? Which materials can provide structural strength? What is the strongest type of building material? What material lasts the longest?
What is the most durable material? How do buildings stay standing? What makes a building flexible? What is flexible design? What is building flexibility into system design? What is flexible housing? How do tall buildings not fall? What are the 5 forces that act on a structure?
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