Curved prestressed bridge, Civil Engineering

Assignment Help:

In a curved prestressed bridge, how ought to the guided bearings in piers of curved region be oriented with respect to a fixed bearing in abutment?


Related Discussions:- Curved prestressed bridge

Basic considerations governing selection of road alignment, Basic Considera...

Basic Considerations Governing Selection of Road Alignment: The following considerations shall be kept in view in selecting the road alignment: Roads in Plain Areas (a)

Mohrs circle, The state of stress at a point is given through the stress co...

The state of stress at a point is given through the stress components sx = 70 MPa, sy = 10 MPa, and txy = - 40 MPa. Using Mohr''s circle find (i) Principal stresses, and (ii) Princ

Co, compressive stenght assigments.

compressive stenght assigments.

What do you mean by ozone test, Q. What do you mean by Ozone Test? Some...

Q. What do you mean by Ozone Test? Some research and studies determined that the ozone test was unnecessary as this affects only the surface layer.  In un-stretched rubber, ozo

Surveying, dumpy level and its procedure

dumpy level and its procedure

Show afflux and scour in alluvial rivers, Q. Show Afflux and scour in alluv...

Q. Show Afflux and scour in alluvial rivers? In case of alluvial rivers, the river bed comprises scourable material like sand. Constriction of bridge waterway causes increase

Friction dampers, what is friction damper and there types?

what is friction damper and there types?

12/5/2013 6:41:38 AM

To determine orientation of guided bearings, one have to understand movement of curved region of a pre-stressed bridge. Movement of pre-stress and creep are tangential to curvature of the bridge or along longitudinal axis, though movement due to temperature and shrinkage effects are in a direction towards fixed pier. If direction of guided bearings is associated towards fixed bearing in the abutment, the main difference in direction of pre-stress and creep movement and guided direction towards fixed bearing would generate a locked-in force in bridge system. The magnitude of lock-in force is dependent on stiffness of deck and supports. If a force is small, it can be designed as added force acting on support and deck. However, if force is large, temporary freedom of movement at guided bearings has to be provided throughout construction.

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