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

Why does the pressure increase under soil, Soil pressure enhances with dept...

Soil pressure enhances with depth due to the overburden or self-weight of the soil and because of loads imposed upon the soil. For example, the pressure variation below the dept

Theory of structures, haw do you salve a supple supported beam with a sprin...

haw do you salve a supple supported beam with a spring balance

Self compacting concrete, what will be the w/c ration and cement/fly ash ra...

what will be the w/c ration and cement/fly ash ration for the particular mix design

General requirement for civil engineering, Question General requirement for...

Question General requirement for Civil Engineering Works in 1992 Edition, Clause 15.09 details that tying wires for strengthening adjacent to and above Class F4 and F5 closes must

Advantages of unbonded post-tensioning systems, Advantages of unbonded post...

Advantages of unbonded post-tensioning systems Similarly, some advantages of unbonded post-tensioning systems over bonded post-tensioning ones may be written as under :  (a)

What is multiple-cell box girder, Q. What is Multiple-cell box girder? ...

Q. What is Multiple-cell box girder? Multiple-cell box girder: cells connected by top flanges vs. cells connected both by top and bottom flanges When the depth of a box gi

Explain about best hydraulic section, Q. Explain about Best hydraulic secti...

Q. Explain about Best hydraulic section? The best hydraulic section of an open channel is considered by provision of maximum discharge with a given cross sectional area. Chann

Theory on the horizontal reactions of portal frames, Determine the horizont...

Determine the horizontal abutment reaction of a rectangular portal frame under increasing central concentrated load

Explain the equation for a suppressed rectangular weir, Explain the Equatio...

Explain the Equation for a Suppressed Rectangular Weir If the approach velocity is negligible, velocity head can be excluded and the equation becomes the Francis weir equation

Direction of placing the main weight of reinforcement, Q. Direction of plac...

Q. Direction of placing the main weight of reinforcement in concrete pavement? The reinforcement of concrete pavement is typically in the form of longmesh type. A road generall

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