Introduction of Double Hinged Arch Bridge

A double-hinged arch bridge is a popular type of structure that spans a river or channel. The structure is sturdy and stable. It can be modified by adding mechanical changes. Various factors need to be considered before installation. Foremost among them is architecture. Considering the design, it is important to determine the amount of rebar and concrete reinforcement required.

Double hinged arch bridges are a common design, but they do not always exhibit the same level of stability. Other types of bridges are prone to curved or uneven decks. Double hinged arches provide better balance and can reduce maintenance costs. Bridges of this type can span considerable distances, so it is important to consider the strength of their main beams.

The analysis method based on the superposition principle can accurately calculate the stability of double hinged arch bridges. The first step is to find the thickness of the arch. An easy way to do this is to use the thinnest possible bow thickness and compare that to the actual bow thickness. The ratio of these two thicknesses is considered to be the geometric safety factor of the arch.

Materials for double hinged arch bridges

A double hinged arch bridge provides two pinned connections at the bottom and allows for rotation. This allows the structure to move during thermal changes. On the other hand, triple-hinged arch bridges have additional connections across the spans, allowing the structure to move in the opposite direction. This in turn allows for longer spans.

Double hinged arch bridges require less maintenance than other types of bridges. However, they do require more specificity when building and maintaining them. They also tend to require longer construction times. Also, they may not work with some networks, which may result in additional charges.

When building an arch bridge, the abutment is one of the most critical parts. They must be strong and large enough to support the horizontal thrust of the arch. Abutments are usually made of steel or reinforced concrete. However, newer materials can be used to reduce the overall cost. The soil-filled cellular reinforced concrete reduces the weight of the concrete, which reduces the overall cost.