StudentShare solutions
Triangle menu

Design a Trussed Bridge to Measure Strength to weight ration - Essay Example

Nobody downloaded yet

Extract of sample
Design a Trussed Bridge to Measure Strength to weight ration

Design a Trussed Bridge to Measure Strength to weight ration

In this design competition, two models of Warren truss (Bridge A and Bridge B) are presented. The aim of the competition is to provide an analytical approach to the bridge design by subjecting the prototypes to damaging failures. In the designs of Bridge A and bridge B, “scientific principles, mathematical tools, and engineering concepts” are considered. Experimental testing gave the results as follows; Bridge A with a mass of 0.1892 Kg and 0.3m supports a mass of 25.251Kg, whereas Bridge B with a mass of 0.2003 Kg supported a mass of 5.729 Kg. 1. Introduction Bridges are solutions to complex puzzles. They help in overcoming common problems presented by rivers and lakes. Application of basic engineering principles results in the design of a model to mimic the actual bridge structures. The best bridge structure the one designed to be “most efficient, elegant, and safest” (Cronn-Mills 215). A truss is a common and basic design in bridge structures. It is a compilation of straight members organized to transmit any load to entire structure (Zureick 51). The design used here in the Warren truss (Figure 1). Figure 1: Truss Bridge Geometry Materials Common truss bridges are from steel. However, in cases of minimal loads wooden truss bridges are used. When designing a bridge from any material, material stress is calculated. (Kappos 70). When the stress value is too high then the designer remains with only two options; increasing cross sectional area of the structure or redesign the geometry to allow even distribution of loads (Cronn-Mills 252). Either of the choice has a negative impact on the structure. Increasing cross sectional area will increase the weight of the structure to the truss (Zureick 52). (Zureick 52). This might cause more geometrical problems leading to poor performance of the bridge structure (Jurado 103). On the other hand, redesigning the geometry introduces more connections, which increases the possible failure points (Zureick 52). Objectives The main objective of the bridge design task is to design a final prototype bridge structure that can support heavy loads before undergoing damaging failure. Two structures are designed with the same material but in different ways. (i) Bridge A is designed with more triangle structures and a combination of both hollow cylindrical and rectangular members in the structure. (ii) Bridge B is designed with less triangular structures and larger cross section area than bridge B. It uses only the rectangular hollow members in the entire structure. Truss Loads There are three types of loads all bridges must withstand, the dead loads, live loads, and dynamic loads (Zureick 53).. (i) Dead Load The weight due to the bridge structure is the dead load. It comprises of the weight of truss “members, gusset plates, and road deck” (Kappos 71). Dead loads will not change during the life span of the bridge. This load can be computed by computing the weight of one truss member. (ii) Live Load This is the weight due to things moving over the bridge. Live loads are temporarily on the bridge and changes from time to time (Zureick 53). (iii) Dynamic Load Temporary load tends to perturb the bridge structure for a short time. Such load includes wind load acting against the side faces of the truss (Jurado 111). It results in the truss experiencing a drag force. 2. Methodology 2.1. Model Bridge designing Bridge A and bridge B are designed ...Show more


Construction of bridges is similar to solving a puzzle. It employs the basic engineering principles to cross an obstacle. Solutions to the puzzles may be presented in several ways however, the efficient, well designed, and those that are safe are picked and ranked top…
Author : hoyt08
Design a Trussed Bridge to Measure Strength to weight ration essay example
Read Text Preview
Save Your Time for More Important Things
Let us write or edit the essay on your topic
"Design a Trussed Bridge to Measure Strength to weight ration"
with a personal 20% discount.
Grab the best paper

Check these samples - they also fit your topic

Bridge building
Sometimes these piers rest directly on the ground. Typically, a beam bridge will span a distance less than 250 feet. These make them the best option for footbridges and overpasses. When constructing a beam bridge, supports are installed on both sides of the bridge to help support the entire weight of the completed bridge.
11 pages (2750 words) Essay
The bridge
During the first days of its use large number of people crossed the bridge. Significant sideway movements of the structure were the reason of the bridge being closed to the public only two days upon opening. This report discusses reasons of the unprecedented and unexpected lateral movement of the bridge and practical solution implemented to prevent the problem from occurring in the future.
2 pages (500 words) Essay
Measure for measure
The play begins when the duke of Vienna, vincento, leaves the town leaving his friend Angelo as his deputy. The duke doesn’t actually leave the town; he just disguises himself as Friar. Angelo then decides to enforce the laws regarding the illegal sexual actions.
2 pages (500 words) Essay
The Bridge Project
The purpose for learning the construction of this type of bridge is to practice and learn design and construction skills In addition, we are carrying out this project to gain documentation and critical thinking skills. Furthermore, we shall take a look at all the factors to consider before constructing a bridge, which are discussed in chapter 2.0.
5 pages (1250 words) Essay
Introduction to Engineering - Truss Bridge Design
Purpose of conducting and developing this project is to design a truss bridge model with given specifications for a bridge competition. The designed model was according to the required results in within the given specifications range.
4 pages (1000 words) Essay
Millennium Bridge
So decision was taken that London would have a suspension bridge between Southwark and Bankside. To be precise this bridge connected the Tate Modern Gallery which is at the Bankside with the St. Paul Cathedral at London. The goal was to build something which would establish UK's scientific and technological prowess strongly in the minds of experts and general populace, all around the world and which would also become one of the most significant tourist spots for the UK and London.
3 pages (750 words) Essay
Bridge Management
The potential that information technology has for example, to fundamentally transform and further enhance educational practices, is an issue of significant importance and one that must be discussed, when contemplating the value of living in Rationales of bridge management systems.
6 pages (1500 words) Essay
Strength Assignments
I did a class project in a class called FME when I was a freshman at college. That was a group project of ten people. The aim was to come up with a business idea. We came up with the proposal of selling Babson hats. That was actually my idea, supported by
2 pages (500 words) Essay
Strength Training
The exercise I have opted is necessary for the development of the required strength in the hands muscles for the purposes of being a top-class tennis
1 pages (250 words) Essay
Measure Assessment
Technical competency entails the ability to understand technical subjects or topics. This entail having the right knowledge required to decipher technical factors. Technical knowledge describes an
1 pages (250 words) Essay
Get a custom paper written
by a pro under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
Comments (0)
Rate this paper:
Thank you! Your comment has been sent and will be posted after moderation