Last week in class, we constructed our own bridge with Knex to get a hand-on experience with building bridges. We as a group, also talked about the importance of constructing this Knex bridge. Then this week in class, we will be constructing the bridge that we individually have sketched earlier. We will also be deciding on which design is the "best" among the three of us.
There are many similarities between the products of WPBD and Knex. First, they both need gusset plates to connect the members together and both can consist of different lengths members. Next, the price of the final bridge design is known—either it is given or it can be calculated. Then, they both don’t take under consideration of outside forces—therefore the test load results are both inaccurate. Last but not least, they both provide fundamental understanding of how a bridge design works
There are many similarities between the products of WPBD and Knex. First, they both need gusset plates to connect the members together and both can consist of different lengths members. Next, the price of the final bridge design is known—either it is given or it can be calculated. Then, they both don’t take under consideration of outside forces—therefore the test load results are both inaccurate. Last but not least, they both provide fundamental understanding of how a bridge design works
On the other side, they also have many differences. First, there are two types of bars (solid and hollow) along with a couple material options in WPBD, whereas in Knex, the material option is limited. Then, in WPBD, the beams can be connected to the gusset plates at any angle, whereas with Knex, we can only connect the beams at 45 degree increment. One big advantage of using WPBD is that it can give us a visual understanding of a bridge’s structural behavior and the mechanism behind the whole designing process. Building a bridge using Knex is just taking a step further, which allows us to gain real-life design experience.
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