What are Factors Affecting Span Selection Of The bridge?

The two main factors affecting the choice of a bridge structure are the main span and the obstacle type (e.g. a river, a railway, an highway). Different alternatives could be chosen for the same span length; functional, construction and economic issues could lead to the final decisions.

1. What are the factors which affects the selection of bridge site?
2. What is the span of a bridge?
3. What are the factors on which the selection of a loading type depends?
4. What is importance of bridge site selection?
5. What is economical span of bridge?
6. What is the span length?
7. What are long span structures?
8. What is a long span bridge?
9. Are there environmental factors to consider when building a bridge?
10. What are the four bridge design considerations?
11. What are the factors consider while selecting the type of pile?

What are the factors which affects the selection of bridge site?

For this project, four main factors were identified and used in the selection of the appropriate bridge types. These factors include geography, loading, aesthetics, and cost and are discussed below. The bridge is located within unique geological features that will affect the selection of the bridge types.

What is the span of a bridge?

Span is the distance between two intermediate supports for a structure, e.g. a beam or a bridge. A span can be closed by a solid beam or by a rope. The first kind is used for bridges, the second one for power lines, overhead telecommunication lines, some type of antennas or for aerial tramways.

What are the factors on which the selection of a loading type depends?

Loads from Building

are also considered based on location. The quantity of loads depends on the type of structure, number of floors and material of construction. As the number of floors increases, the dead load and imposed loads also increase.

What is importance of bridge site selection?

The choice of the right site is a crucial decision in the planning and designing of a bridge. It may not be possible always to have a wide choice of sites for a bridge. This is particularly so in case of bridges in urban areas and flyovers. For river bridges in rural areas, usually a wider choice may be available.

What is economical span of bridge?

The span of the bridge for which the total cost of the bridge is minimum is called economic span. ... In other words, Economical span is defined as that span for which the total cost of the substructure is equal to the total cost of superstructure.

What is the span length?

A span is the distance measured by a human hand, from the tip of the thumb to the tip of the little finger. ... Sometimes the distinction is made between the great span or full span (thumb to little finger) and little span or short span (thumb to index finger, or index finger to little finger).

What are long span structures?

What we consider long span structures are structures with spans larger than 20 meters. The most common types of long-span structures are trusses, folded plates, shell structures, frames, and tent structures or tensile structures.

What is a long span bridge?

Long-span bridges have traditionally employed suspension or cable-stayed forms, comprising vertical pylons and networks of cables supporting a bridge deck.

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 four bridge design considerations?

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 are the factors consider while selecting the type of pile?

The factors that affect the selection of pile foundations are, Soil conditions. Loads from structures. Nature of loads.