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

Uses of cement, Uses of Cement Cement is utilized widely for the constr...

Uses of Cement Cement is utilized widely for the construction of several structures. Some of them are listed below: (i) Cement slurry is utilized for filling cracks in concr

Torsion, Asolid circular shaft of 25 cm diameter is to be replaced by a hol...

Asolid circular shaft of 25 cm diameter is to be replaced by a hollow shaft .The ratio of external to internal diameters being 2to1.Find the size of the hollow shaft if the maximum

Doors and windows, what are the actuall windows and door dimensions e.g AN ...

what are the actuall windows and door dimensions e.g AN ND4

Stacking of materials for building, briefly explain the stacking of materia...

briefly explain the stacking of materials in the site for general building

Leveling, cooke''s reversable level

cooke''s reversable level

What is dead weight, Dead weight Dead loads are the weight of perma...

Dead weight Dead loads are the weight of permanent components of the structures such as the weight of the elements and spheres, casing weight, weight of the false ceiling a

Structure, what is the cutelment length

what is the cutelment length

Geotechnical engg., friction circle method of stability of slope

friction circle method of stability of slope

What is corrosion inhibitors, Q. What is Corrosion inhibitors? Corrosio...

Q. What is Corrosion inhibitors? Corrosion inhibitors are chemical substances that when added in small concentrations, stop or decrease the corrosion or reaction of metalwith t

Maximum shear stress - state of stress, Maximum shear stress - state of str...

Maximum shear stress - state of stress: Consider the state of stress. (a) According to principal stress theory the equivalent stress for this case is simply σ 1 , i.e. 300

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