What is a plastic hinge zone?

For reinforced concrete (RC) flexural members, the plastic deformation is localized in a small zone namely the plastic hinge zone after the yielding of the member. The performance of the plastic hinge zone is critical for flexural members as it governs the load carrying and deformation capacities of the member.

What are the points at which a plastic hinge is likely to form?

Plastic Hinge is a yielding zone in an structural elements which generally develops at the point of Maximum Bending Moment, support, etc. e.g. – For a simply supported beam subjected to a point load, the plastic hinge will occur at the position of point load.

How many plastic hinges are required to convert the structure into a mechanism?

3 is an example of a structure that will fail after two plastic hinges develop. – Three hinges are required for collapse, but there is a real hinge on the right end.

What is length of plastic hinge?

Abstract. The plastic hinge length is defined as the length over a seismically swaying column, where flexural moments exceed the yielding capacity.

Why plastic hinge is important?

A plastic hinge, in structural engineering, refers to the deformation of a part of a beam wherever plastic bending happens. Therefore, a plastic hinge behaves like a standard hinge – permitting free rotation. The concept of plastic hinge is important in understanding structural failure.

Where do Plastic hinges form first?

– As the uniform load is increased in magnitude, a plastic hinge will first form at the fixed end. – At this time the beam will, in effect, be a “simple” beam with a plastic hinge on one end and a real hinge on the other.

Which type of hinge is known as T hinge?

T Hinges. This type of hinge is shaped like the letter T and is commonly used on gates. T hinges come in many different styles and materials. T Hinges typically have one narrow leaf and one wider leaf.

What is the different types of hinge?

To help you determine which type you need, here are some common hinges and how they’re used.

• Corner hinges. These are typically used on metal cabinets and machine covers and sit flush to the surface.
• Lift-off hinges.
• Offset hinges.
• Piano hinges.
• Leaf hinges.
• Concealed hinges.
• Side hinges.
• Weld-on hinges.

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