Table of Contents
What is the key to a successful bridge design?
Successful highway bridge design must address three areas of consideration: (1) creative and aesthetic, (2) analytical, and (3) technical and practical. Given that most bridge designs today are performed by multidisciplinary teams, addressing the first two considerations is fairly easy to achieve.
What is high flood level?
high flood level means the maximum level to which the water level could rise, due to rainfall and run-off in the catchment areas, over and above the level of water normally conserved in any artificially constructed water storage work on a public stream; Sample 1.
What essential data is required for the design of a bridge?
Data needed for designing a bridge: Desired vertical alignment of the new route. Required width of the bridge, width of lanes, median, walkways, safety rails etc. Soil conditions for foundations, results of borings with a report on the geological situation and soil mechanics data.
Which bridge design is the strongest?
Even though the truss bridge design has been around for literally centuries it is widely regarded as the strongest type of bridge. The design itself looks extremely simple, so what makes it the strongest type of bridge and why?
What makes a bridge so strong?
Suspension bridges are strong because the force on the bridge gets spread out. The weight of the cars or trains or horses, whatever’s traveling across it, pulls on the cables, creating tension. Those cables then pull down on the towers and also pull on the anchors on either end of the bridge, to hold up the deck.
What factors are most important when choosing a bridge design choose more than one answer?
Bridge substructure placement, clear height, profile grade, and aesthetics are the main factors in deciding the bridge type. When determining a structure type over water, there is an order of preference for most bridge sites.
How do you determine the highest flood level?
Top 6 Methods for Estimation of Flood Discharge
- Method # 1. Catchment-Run-Off Method:
- Method # 2. Empirical Formulae:
- Method # 4. Cross Sectional Area and Bed Slope:
- Method # 5. Area of Cross-Section and Velocity as Observed at Bridge Site:
- Method # 6. Available Records:
What is the possible effect of flood?
Floods have large social consequences for communities and individuals. As most people are well aware, the immediate impacts of flooding include loss of human life, damage to property, destruction of crops, loss of livestock, and deterioration of health conditions owing to waterborne diseases.
What happens when a bridge gets flooded?
Water rises above the roadbed, tearing out the asphalt and other vulnerable parts of the structure. Water levels rise on the roads leading onto a bridge, damaging the connectors that anchor it in place. Did you know? The main reason many bridges are destroyed by floods is because of a phenomenon known as scour.
What happens to debris after a flood?
Large items, such trees, vehicles, appliances, or even whole structures, get picked up by flood water and slammed into a support pier, road bed, or other part of a bridge, causing structural damage. Smaller pieces of debris accumulate upstream from a bridge, forming a large mass.
What are the most prominent civil engineering structures?
Today, bridge is one of the most prominent civil engineering structures. Different types of bridge are being built these days due to sophisticated equipment and developed material science. many bridges just to join one part of the country to another.
What limits the flow of water around bridges?
An accumulation of debris limits the flow of water around a bridge. Concentrating water flow raises its height and increases the pressure it applies to the structure. Water rises above the roadbed, tearing out the asphalt and other vulnerable parts of the structure.