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

Conturing, radial line method practical

radial line method practical

Chemical prestressing, advantages and disadvantages of chemical prestressin...

advantages and disadvantages of chemical prestressing over conventional prestressing?

Rcc, what is the density of rcc

what is the density of rcc

Wires in gabion walls, Gabions are wire mesh boxes that are filled with sto...

Gabions are wire mesh boxes that are filled with stones and they areplaced in an orderly pattern to act as a single gravity retaining wall. Meshes or Lacing wires are designed t

Survey, Operation in chain surveying

Operation in chain surveying

Define carbonation - underwater inspection of bridge, Define Carbonation - ...

Define Carbonation - underwater inspection of bridge? Carbon dioxide is present in the air and attacks the concrete directly. It has the effect of destroying the normal passivi

How can rock sockets take up loads, Question How can rock sockets take ...

Question How can rock sockets take up loads? Answer Load transfer mechanism is brief as follows- While a socketed basis is loaded, conflict is provided by together

Cross-section of exogenous tree, The cross-section of exogenous tree is as ...

The cross-section of exogenous tree is as shown in given figure.The following components are visible to the naked eye:           Cross-section of exogeneous tree 1. P

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