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

Sea breeze and land breeze, Explain the following: (a) Sea breeze and L...

Explain the following: (a) Sea breeze and Land breeze (b) What is Thermal comfort (c) What is Global wind pattern and Coriolis effect (d) How wind affects the tempe

Scheme of some smaller piles with same load capacity, Question Which wi...

Question Which will be a better choice, a large diameter piles or a scheme of some smaller piles with same load capacity ? Answer Choice of a large diameter pile suff

State the net allowable bearing pressure, A footing, 2 m square, is founded...

A footing, 2 m square, is founded at a depth of 1.5 m in a sand deposit, for which the corrected value of N is 27. The water table is at a depth of 2 m from the surface. Verify the

Micro-organism ratio, Micro-organism ratio: Determine the F/M ratio (i...

Micro-organism ratio: Determine the F/M ratio (in units of lbs BOD5/lb MLSS-day) using data provided in the above example problem. Solution By definition, F/M = Q S

Engineering project control, need help with my assignment. An Asian Pacific...

need help with my assignment. An Asian Pacific capital city proposes to design, construct and operate a new double track railway from the city to connect to its major airport. Pref

Necessity of pile tip cover for rock-socketed H-piles, Q. Necessity of pile...

Q. Necessity of pile tip cover for rock-socketed H-piles? In current practice concrete cover is generally provided at the pile tips of pre-bored H-piles socketed in rock. The o

Cement, Ask What is the density of cement?

Ask What is the density of cement?

BRIDGES, WHAT ARE THE DIFFERENT TYPES OF BRIDGES

WHAT ARE THE DIFFERENT TYPES OF BRIDGES

Concrete with crush sand, what precaution taken during the mixing of crush ...

what precaution taken during the mixing of crush sand in winter season

Lead products in construction, What are the advantages and disadvantages of...

What are the advantages and disadvantages of lead products in construction? Ans) Disadvantages: -Lead is very toxic; its use can result in pollution of the ground and more signi

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