Glossary structural joint: jonts are connection that allow force to be transterred from one structural element to another. column: It is a vertical post that is used for support in a building. tension: A kind of force which is casued by pulls a material apart. frame: A rigid structure formedo of relatively slender pieces, generally used as a major supprot bracing:Diagonal embers that help strengthen the structure of a frame. span: The distance or space between two supports
Learing loop: Structural joints can devided into roller joints, ping joints and fixed joints. There are some shortcomes of them. fixed joints
Studio report Activity: Frame Intended Learning Outcomes: To undersand the nature and behaviour of frame construction and how loads are transferred in framestructres and how to accrepicate the importance of structural joints.
First step: Choose a appropriate structure of the "Frame". The materials we got is a long wood batten which is thin and easy to break. Besides, the length of the wood batten is not long enough for the distance of two table. Therefore, we decided to cut the batten to several parts. However, how to choose a great structure to make the connection of each part is very important and will influence the stability of the "Frame". As shown in the figure , the first design of our bridge is , it is inspired by many stable bridges in the world. However, because the limited materials and easy for connecting to the table, we improved to .
Second step: Connect each part of the bridge For connecting each part of the bridge , because there are lots of small parts, so we foud a really tight method. As shown in the pictures, in each joint, we use both nails and tapes to connect.By using this method, even though there are many small parts in the bridge, but it is not easy to collapse. The tapes make the structure joints stretchy which could afford deformation and the nails could guarantee the bridge won't break at the structure joints.
In the first picture, there are many triangle because triangle is the most stable structure. By using this structure , the bridge could afford heavy things.
Third step ďźš measure the stability of the "Frame" and introspection After put a heavy block on the bridge. The first problems we found is the connection of joints. In our brige, many joints are use and some of those are not stable. In order to solve this problem, we used surplus materials to reinforce the connection of some not stable joints. As shown in the first picture, we used nails to connect a small board onto other two boards which could avoid shape changing at the joints.
The second problem we meet is the balance of the bridge. Because the bridge is thin, so when we put a block on it , the bridge will fall to two sides. In order to solve this problem, we use tapes to connect the middle of the bridge to the table which could help balance the bridge and contribute to the stability.
Last step: Summarize
After solving the problems appeared, as shown in the two picture above, our "Frame " could really afford a lot of things. When we put more things on the bridge, the shape of the bridge changed a little, it is pretty good because, this shape change means the bridge is rich in elasticity. To sum up our Frame is pretty sucessful.
Reference: Ching.F.D.K(2014). Building Constructing illustrated(5th ed). Hoboken, New jersey:john Wiley and Sons. Newton, C.(2014, March 9). W02 s1 structural System.