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

STRUCTURAL MECHANICS, Define and explain Mohr’s theorem for finding slope a...

Define and explain Mohr’s theorem for finding slope and deflection.

Granite tiles for construction material, Q. Granite Tiles for construction ...

Q. Granite Tiles for construction material? At every important station for public urinals granite may be used as wall cladding drain and foot rest material. The water sinks at

Construct the shear force and bending moment diagrams, A Beam A B 12 meter ...

A Beam A B 12 meter long rests on supports 9 meter apart the right hand end over hanging the supports by 1 m and the left hand end by 2 m . The beam carries a uniformity distribute

Types of surveys and investigations, Types of Surveys and Investigations: ...

Types of Surveys and Investigations: For preparing a good road project, the following surveys and investigations are needed: (a)        Traffic Surveys (b)       Topogr

Explain coagulation - Surface Water, Explain Coagulation Surface wa...

Explain Coagulation Surface waters must be treated to remove turbidity, color and bacteria The traditional sand filtration is not sufficient in removing bacteria, viru

Calculate the amount put into saving account, Calculate the Amount put into...

Calculate the Amount put into Saving Account If you want to have $60,000 in 10 years, the amount that should be put into a 6.0% (effective annual rate) savings account now is m

Explain the watersheds - hydrology, Explain the Watersheds - Hydrology ...

Explain the Watersheds - Hydrology The surface area on which runoff generated will flow to a common stream or body of water by gravity. Often separated by higher elevations/top

Of obstacles to both chaining and ranging.., #questof obstacles to both cha...

#questof obstacles to both chaining and ranging. ion..

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