Foundation, Concrete and Earthquake Engineering

Practicality of Structural Hinge

Hinges are provided to have little resistance to rotation with a mechanism to transmit safely the trust and shear forces that comes from the member to be supported. In the analysis of hinged structures it is assumed that the bending moment at the hinge is zero.

This can be achieved only by providing entirely free to rotate condition. Such ideal hinges can not be constructed, since friction and other inevitable restraining factors can not be avoided.

Bridge Supported on Hinges
Concrete Hinges for FlyoverPractically, it is aimed to ensure that the flexibility of the hinge be considerably greater than that of any other portion of the structure of which it is a part. This is done to have negligible errors as a very small moments in the hinge is occurred as compared to the moments in the in the structure proper. The use of hinges is not restricted to arches and equally useful in rigid frames, bridges as well as in buildings preferably for long-span single-story frames.

No comments:

Post a Comment