Model Arch Bridge and tha Design Improvement Essay - 2

Model Arch Bridge and tha Design Improvement - Essay Example Bridges are designed to withstand both live and dead loads. Dead loads are loads that do not change, such as the structure’s weight. These include the sidewalks, deck, railings, and the concrete or steel load-carrying members. Dead loads account for the considerable and significant percentage of stress in load carrying members. The second load, live load, changes; the change can be due to decreased or increased pedestrian and traffic loading. When designing a bridge, safety and strength of the structure are the most important considerations. The shape and overall design of the bridge were decided by the group. The shape of the bridge was sketched to full size on a white piece of paper. The sketch was used in to guide the popsicle sticks as shown in figure 2. The last step was to glue popsicle sticks on beams of the deck in order to come up with a bridge deck. The final structure is shown in figure 4. The whole procedure was carried on the first and second final structures. The first bridge weighed 193.6 grams while the second one was 245.1 grams. The first bridge supported a maximum load of 6,613 grams, concentrated at mid-span, while the second was 21, 818 grams. The loads to weight ratio of the first and second bridge were 34.2 and 89.0 respectively. Arch increase stability as it provides resistance to the forces that act in the bending of the bridge. The weight is redirected from members to ends of the bridge by arches; hence forces are evenly distributed for the better structure as shown in figure 5. The second bridge was strengthened in areas that loads were concentrated, that is at abutments and load points. The second bridge was also reinforced to increase their strength triangular shapes were used in preventing rectangles from leaning. A top lateral bracing was used in the prevention of buckling sideways during loading due to compression members like the top chord.

Case study on chronic illness Essay Example | Topics and Well Written Essays - 250 words

Case study on chronic illness - Essay Example Americans have medical cover and face little dangers of controlling the diseases because the insured go for the checkups which are sponsored by the insurers. Members of the countries with low socioeconomic power are rarely informed of medical cover. Low income in them also imposes great challenges in them taking the cover. From the chapter read on Rosalie’s health, she has no medical cover (Moroflubkin & Pamala 2012). The Healthy people 2020 have a plan to take medical cover to support Rosalie for the rest of her life. She has to also remain on treatment while the medical policy matures. They also have a plan on how to educate her. Rosalie’s aunt will also get a medical cover since her income is low and in future she might not be able to meet her medical needs should they occur. WHO cares for the underprivileged people’s health: providing them with medicines, education, food and shelter. This way, I will also plan to provide the same to Rosalie and her aunt Rita. This will help relieve her of the burden bagging her life. If I had to respond to the call, I would inform the health care professionals to have regular checks on the health of the aging population to avoid high costs of treatment. I would also advise them to take early control measures like immunization on children in order to prevent future problems to the victims when they age (Toombs, David & Ronald 1995). If I had power of control over the resource, I would introduce free and compulsory immunization to the needy and carry out medical researches on people’s health in order to identify how and when to issue treatment to the needy (Dubey