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

Tension member, Explain various forms of tension members.

Explain various forms of tension members.

Full bore flow in drainage design, Q. Full bore flow in drainage design? ...

Q. Full bore flow in drainage design? In the design of gravity drainage pipes, full bore flow capacity is usually adopted to check against design runoff. Though one should note

Lifting hoops in precast concrete, Q. Lifting hoops in precast concrete - m...

Q. Lifting hoops in precast concrete - mild steel vs. high yield steel Strength of high yield steel is undoubtedly higher than mild steel and therefore high yield steel is gen

Project management, Project Management: This unit starts with the gene...

Project Management: This unit starts with the general definition of Project management. Several phases involved in project management are also desribed. Further, the technique

Autocad-introduction, Autocad-Introduction Learning to use a CAD syste...

Autocad-Introduction Learning to use a CAD system is similar to learning a new language. It is necessary tobegin with the basic alphabet and learn how to use it correctly and

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

Colour code, in colour working drawing what are the colour code?

in colour working drawing what are the colour code?

Seismic joints, is the seismic joints like falling joints ? thanks :)

is the seismic joints like falling joints ? thanks :)

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