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Table of contents

  1. Ah, Treachery!.
  2. The lock of love: padlocks on bridges.
  3. The White Squirrels of North Carolina.
  4. water under the bridge the early years part 1 Manual.
  5. Making the Grades: A Grouch-Free Guide to Homeschool Grading (The HomeScholars Coffee Break Book series 17).
  6. History of Ukraine - 2nd, Revised Edition: The Land and Its Peoples;

A cutwater is a wedge-shaped component added onto a bridge pier. It is designed to resist water flow and break up ice, which helps reduce the pressure these elements place on a bridge.

Cutwaters allow engineers to build more structurally ambitious bridges in extremely cold climates and areas that experience significant tidal flow. The deck also known as the roadway or surface of a bridge is the functional area that allows vehicles and pedestrians to cross highways, valleys, and bodies of water. Utility infrastructure is often hung below the deck.

Decks are usually constructed of concrete, steel, wood, or a grating system.

meaning - What's the origin of "water under the bridge"? - English Language & Usage Stack Exchange

The deck can be integrated into the support structure of the bridge, supported by beams or girders, or suspended by the primary structural elements. In some modern bridges, such as tied arch or cable-stayed bridges , the deck is the primary structural support element. This is a bearing type commonly used on modern bridges. It is designed to compress under a vertical load, while allowing for horizontal rotation and lateral shear movement. This category of bridge bearing includes neoprene bearing pads and bearings, laminated elastomeric bearings, and seismic isolators.

A flood arch is a small, secondary arch bridge that sits next to a main bridge. It provides additional capacity to handle flood water. The area beneath a flood arch is typically dry or handles a limited amount of water. Flood arches are frequently added after the main bridge has been flooded. The foundation or base of a bridge is the element that connects the structure to the earth and transfers loads from it to the ground below. A girder is the main horizontal support beam on a bridge. It supports the smaller beams.

However, they may also have a box shape, Z shape, or other form. Girder bridges are the most common types all over the world. At its simplest, the form can be traced back to the simplest early log bridges. The two most common girder types are plate girders and box girders. A guard rail is a system used on the sides of bridges — and sometimes, the median — to keep people and vehicles from entering unsafe areas or falling off the edge.

Ups, Aquesta pàgina no s'ha trobat!

Safety, cost-benefit, and repair-related concerns go into deciding which type of guard rail is used on a particular bridge. Hanging systems are used to attach utility infrastructure to bridges. This can include wiring, piping, or ductwork. Hangers can be purchased off-the-shelf or custom fabricated to meet the needs of specific projects.

Simon and Garfunkel - Bridge Over Troubled Water

A pier is a raised structure that sits in a body of water to support a bridge. The open structure of a pier allows water to pass through it, preventing pressure from building up against it. A pile is hammered into the soil beneath the bridge until the end of it reaches the hard sub layer of compacted soil or rock below. Piles hammered to this depth leverage the grip and friction of the soil surrounding it to support part of the load of the bridge deck. A side plate is a linear bearing that is used as a part of an expansion joint of a bridge.

Water Under the Bridge

One plate is typically fixed, and the other slides over it to accommodate expansion and contraction. This provides the bridge structure with support while accommodating shifts in temperature. A skew sometimes referred to as an oblique arch is a style of arch where its faces are not perpendicular to the abutments of the bridge. Poetically, it was the city of love. Practically, there was a Eurostar deal on at the time. Edward and his girlfriend were in the early days of their relationship.

They had met through university friends and the spark had been immediate: When they got to Paris they spent hours walking through the streets arm in arm talking about the things that couples do when the future seems infinite and hopeful. And then they stumbled upon the historic Pont des Arts. In truth Edward had secretly planned for them to end up there. In his coat pocket he had a padlock purchased the week before from Robert Dyas on to which he had etched their initials on either side of a rudimentary love heart. He took the lock out and showed it to his girlfriend, explaining that he intended to fix it to the railings of the bridge.

The lock would stand forever as a beautiful tribute to their lasting love. The girlfriend was touched. Edward clipped the lock on to the metal grate, where it jostled for space with several hundred other padlocks left by several hundred other loved-up couples and then he flung the key into the waters of the Seine. A few months after their trip to Paris, the couple broke up. The lock, however, remained firmly in place. Edward spent a lot of time thinking about that lock. It began to obsess him: Then, last June, the Parisian authorities started to cut away the locks.

There was concern there might be further collapse. In a somewhat unloving statement, the Paris health and safety officials stated: There are rumours of an auction or an art installation. In Taiwan they are hung in pairs on an overpass at the Fengyuan railway station in the belief that the magnetic fields generated by moving trains will imbue them with positive energy and make wishes come true.

The gold- coloured lock can even be personalised with laser engraving. Sealed, at least, until rust corrosion takes its natural course or the structure in question starts to collapse under the weight of the metal.

Breaking Down Essential Parts of a Bridge Structure [Term Guide]

It is not just Paris that feels the need to protect its heritage from such romantic impulsiveness. Some 5, locks left on the Ponte Vecchio in Florence were removed by city authorities because they were deemed to be ugly as well as denting the metal structure of the bridge. Love locks are divisive.