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Why do engineers design bridges with expansion slots between the sections?
Wiki User
∙ 13y ago
All materials expand when heated and contract when cooled.
Bridges are especially vulnerable because the entire bridge is surrounded by air, and it doesn't have the ground below to act as a heat sink.
Without the expansion slots, the bridge would run the risk of buckling when heating, and pulling apart when cooling. This could damage a bridge.
Uncontrolled or unsupported cracks, for example in the middle of a span could be very dangerous.
Wiki User
∙ 13y ago
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What are the effects of expansion and contraction in the design of bridges pavements and MRT lines?
- MRT and Railway tracksif a continuous track of metal is used, it will expand in hot weather and bent. trains running on bent tracks may be derailed. to prevent this, railway tracks are laid in sections with expansion gaps between them. A sliding joint between adjoining rails allows them to expand without bending.- bridgesboth concrete and steel bridges are built with allowance for expansion and contraction due to changes in the surrounding temperatures. Rollers and sliding joints allow for the movements of the bridges as it expands and contracts
What do you call the type of engineer that designs bridges?
civil engineers, structural engineers, and architects are the main bridge builders.
Does concrete expand?
yes, that is why they put expansion joints on bridges. (: your welcomeyes, that is why they put expansion joints on bridges. (: your welcome
What does civil engineers create?
Roads and bridges.
Expansion joints are used in bridges in order to prevent the bridge from?
Buckling; shriveling, bending, or curling from heating or pressure. (heating, in this case)
Why do engineers design bridges with expansion slotsions?
Because bridges expand and contract with the change in temperature. The expansion joints allow the bridge to 'flex' as the temoerature rises and falls, ensuring the structure doesn't buckle or collapse.
Why there are spaces between bridges?
To allow for expansion and contraction.
What type of engineers design bridges?
Civil engineers and Structural engineers.
What is the property of matter where it changes volume when it changes temperature?
The property of solids in which they enlarge when warmed is thermal expansion. The opposite, shrinking when cooled, is thermal contraction. This property greatly effects how bridges, sidewalks, and concrete roads are made. They all have "expansion gaps," gaps between sections that allow the sections to expand in the heat of summer. Without those, the concrete would break and the bridges would warp and bend.
Why do bridges and rail tracks can buckle when they expand because of heat?
One common reason is thermal expansion and inadequate allowance for such expansion .Railway tracks expand when they get warm, for example, in the summer. Because they are long and narrow, the expansion is most noticeable along their lengths. If there is not enough space between tracks to allow for such expansion, then adjacent sections will soon abut one another and any further expansion will result in buckling. At the same time, it is not practical to leave large expansion gaps between sections because these lead to the railway wheel dropping and the clattering sound of trains. Although possibly romantic, the clattering is a result of impacts and, over time, it can wear out the tracks.Similar issues arise with metal sections on bridges, and you will often experience periodic "bumps" as you drive along a long road bridge..
Who makes sure bridges are safe?
engineers engineers
What is metal joints are placed between concrete sections of long?
bridges
What are the effects of expansion and contraction in the design of bridges pavements and MRT lines?
- MRT and Railway tracksif a continuous track of metal is used, it will expand in hot weather and bent. trains running on bent tracks may be derailed. to prevent this, railway tracks are laid in sections with expansion gaps between them. A sliding joint between adjoining rails allows them to expand without bending.- bridgesboth concrete and steel bridges are built with allowance for expansion and contraction due to changes in the surrounding temperatures. Rollers and sliding joints allow for the movements of the bridges as it expands and contracts
What do you call the type of engineer that designs bridges?
civil engineers, structural engineers, and architects are the main bridge builders.
What do bridge engineers invent?
bridges
What is engineers do?
Engineers design things such as bridges or pipes based on scientific principles.
Does concrete expand?
yes, that is why they put expansion joints on bridges. (: your welcomeyes, that is why they put expansion joints on bridges. (: your welcome
