What are the 2 things that must be considered when designing a bridge?

Considerations in Bridge Design

• Superstructure and Substructure. To understand bridge design, you’ll have to learn the difference between the bridge’s superstructure and its substructure.
• Tension and compression.
• Resonance.

What are some of the primary factors that engineers must consider when designing a bridge?

For designing safe bridge structures, the engineering design process includes the following steps: 1) developing a complete understanding of the problem, 2) determining potential bridge loads, 3) combining these loads to determine the highest potential load, and 4) computing mathematical relationships to determine the …

What do you think are the 3 most important considerations when designing a bridge?

Mostly, engineers consider three types of loads; dead loads, live loads and environmental loads: Dead loads: These loads include the weight of the bridge itself, plus any other permanent object affixed to the bridge.

What are the key concepts behind good bridge design?

The prototypical bridge is quite simple—two supports holding up a beam—yet the engineering problems that must be overcome even in this simple form are inherent in every bridge: the supports must be strong enough to hold the structure up, and the span between supports must be strong enough to carry the loads.

What concerns might you have if you were building a bridge?

Top Risks Faced by Bridge Contractors and How to Avoid Them

1. Cash flow issues. Most contractors experience inconsistent cash flow at one time or another.
2. Money-losing projects.
3. Work that doesn’t get done on time.
4. Accidents and injuries on the job site.
5. Poor quality work.
6. Theft.
7. Change.
8. Structural failure.

What two forces must be concerned with on bridges?

The answer lies in how each bridge type deals with two important forces called compression and tension. Compression is a force that acts to compress or shorten the thing it is acting on.

What do engineers consider when building?

A building engineer will consider all these forces and design the building to be structurally sound. Building engineers look at supports, loads, and building materials. During the building process, they review and evaluate plans as well as inspect the structure and its surroundings.

Are there environmental factors to consider when building a bridge?

The second term refers to traffic that moves across the bridge as well as normal environmental factors such as changes in temperature, precipitation, and winds. All three factors must be taken into consideration in the design of a bridge.

What are the two most important factors involved in choosing which materials your bridge will be built out of?

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.

What do you need to build a good bridge?

Some of the main materials found on a bridge are steel, concrete, stone and asphalt. Other materials include iron, timber, aluminum, rubber and other joint materials. Below is a description of some typical uses for these materials in a bridge.

What makes a bridge safe?

Bridge safety depends on understanding the risks they pose or can suffer from. Good traction underfoot, or under-tyre, is essential for elevated travel, and a well-prepared bridge deck must provide a stable, protective and safe surface.

Can you name three things that might cause a bridge to collapse?

Earthquakes, flooding and high winds can all contribute to bridge collapses.

What are the factors that engineers must consider when designing bridges?

Next, engineers must determine what types of loads or forces they expect the bridge to carry. Loads might include traffic such as trains, trucks, bikes, people and cars. Other loads might be from the natural environment. For First and foremost, engineers must understand the problem completely.

What is the purpose of bridges?

A bridge is a structure to cross an open space or gap. Bridges are mostly useful for crossing rivers, valleys, or roads by vehicles but people have also used bridges for a long time for walking. Bridges are structures built over railroad tracks, roads, rivers or some other obstacle. They allow people or vehicles to cross from one side to another.

What data is needed for designing a bridge?

Data needed for designing a bridge: A plan of the site showing all obstacles to be bridged such as rivers, streets, roads or railroads, the contour lines of valleys and the desired alignment of the new traffic route. Longitudinal section of the ground along the axis of the planned bridge with the conditions for clearances or required flood widths.

Who is responsible for the beauty of a bridge?

Bridges ultimately belong to the general public, which is the final arbiter of this issue, but in general there are three positions taken by professionals. The first principle holds that the structure of a bridge is the province of the engineer and that beauty is fully achieved only by the addition of architecture.