If you’re a contractor, construction worker, engineer, or tech industry employee, you probably understand that there are many different types of bridges involved in certain areas and types of construction projects. Truss bridges ? Very popular bridge designs that uses diagonal mesh of posts above the bridge. The two most common designs are the king posts (two diagonal posts supported by single vertical post in the center) and queen posts (two diagonal posts, two vertical pots and horizontal post that connect two vertical posts at the top).
It’s also important to remember that trench boxes are generally used in open areas, but they also may be used in combination with sloping and benching. The box should extend at least 18 in (0.45 m) above the surrounding area if there is sloping toward excavation. This can be accomplished by providing a benched area adjacent to the box.
Shoring are classified into the following three classes either on the basis of their supporting characteristics or their position in the space: 1. Raking or Inclined Shores 2. Flying or Horizontal Shores 3. Dead or vertical shores.Temporary shoring equipment often offers additional benefits over permanent because of the fact that you don’t have to commit to a long term deal. Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. Trenches 20 feet (6.1 meters) deep or greater require that the protective system be de-signed by a registered professional engineer or be based on tabulated data prepared and/ or approved by a registered professional engineer.
Shoring are classified into the following three classes either on the basis of their supporting characteristics or their position in the space: 1. Raking or Inclined Shores 2. Flying or Horizontal Shores 3. Dead or vertical shores.
Over two hundred million trips are taken daily across deficient bridges in the nation?s 102 largest metropolitan regions. Being aware of the different types of bridges can help you properly assess construction projects and determine which works best.