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.
civil engineers, structural engineers, and architects are the main bridge builders.
Thermal expansion is crucial for engineers because it affects the design and integrity of structures and materials under temperature changes. Engineers must account for expansion and contraction in materials to prevent structural failures, such as cracks or warping, in buildings, bridges, and machinery. Understanding thermal expansion also aids in selecting appropriate materials and designing joints or expansion gaps to accommodate movement. This consideration ensures safety, durability, and functionality in engineering projects.
- 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
Roads and bridges.
yes, that is why they put expansion joints on bridges. (: your welcomeyes, that is why they put expansion joints on bridges. (: your welcome
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.
Civil engineers and Structural engineers.
To allow for expansion and contraction.
engineers engineers
bridges
civil engineers, structural engineers, and architects are the main bridge builders.
- 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
bridges
Engineers design things such as bridges or pipes based on scientific principles.
Civil Engineers.
for bridges.
Roads and bridges.