Explain types of bearings, Civil Engineering

Assignment Help:

Q. Explain types of bearings?

The bearing transfers the forces coming from the superstructure to the substructure. It also allows for necessary movements in the superstructure which are caused by temperature variations. The following types of bearings are generally used.

a) Sliding bearing - permitting rotation and translation

b) Rocker and roller bearings - permitting rotation and translation respectively.

c) Elastomeric bearings - Made of natural or synthetic rubber of shore hardness of approximately 50 to 70. They are very stiff in resisting volume change but are very flexible when subjected to shear. They are generally reinforced with steel plates in alternate layers to reduce bulging. When used with a steel or concrete girder these permit moderate longitudinal movements and small rotations at the ends. These are provided for bridges having RCC or Pre stressed girders and can take deflection a well as movement

d) P.T.F.E. Bearings - The PTFE can be unfilled or filled with glass fibre or other reinforcing material. These are used either to provide rotation by sliding over cylindrical or spherical surfaces or to provide horizontal sliding movement over flat surface or a combination of both. Where there are large displacements accompanied with relatively small loadings, as in case of centrifugal loads, wind loads or seismic loads, PTFE sliding bearings are utilised.


Related Discussions:- Explain types of bearings

Finite element analysis (bridge), I am a final year civil and structural st...

I am a final year civil and structural student and i need your help about my final year project. My Final Year Topic: Finite Element Analysis of a bridge using Sap2000 Aim: Fi

Water control for sheet pile walls, Q. Water control for sheet pile walls? ...

Q. Water control for sheet pile walls? Ground water flow into excavations constructed by sheet pile walls must be minimized in order to save the cost of the provision of pumpin

Paints., contituents of paints

contituents of paints

Assignment, industrial applications of ultrasonic welding,soldering,drillin...

industrial applications of ultrasonic welding,soldering,drilling,claning

Fillet welding, Strength of member when fillet welded

Strength of member when fillet welded

Stone massonary, what is a 1st sort,2nd sort, 3rd sort stone masonary

what is a 1st sort,2nd sort, 3rd sort stone masonary

Water absorption test for precast concrete pipes, Question What is the ...

Question What is the major purpose of carrying out water absorption test for precast concrete pipes? Answer Cement will mix with additional water than is compulsory t

How the bursting tensile forces produced, How the Bursting Tensile Forces p...

How the Bursting Tensile Forces produced These are tensile forces produced due to concentrated longitudinally applied prestressing forces in the end zone of a post-tensioned co

Curved beams, Sir how can we find location of neutral axis for a curved bea...

Sir how can we find location of neutral axis for a curved beam of circular cross section,,,

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd