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

Plinth wall, is it necessary for to put plinth wall in buildings

is it necessary for to put plinth wall in buildings

Chemical analysis of fe 415., in this chemical analysis what is the meaning...

in this chemical analysis what is the meaning of c% and s% and P%

Determine the stresses within the rod, Determine the stresses within the ro...

Determine the stresses within the rod: Two parallel walls are stayed together through a steel rod of 5 cm diameter passing through metal plates and nuts at both ends. The nuts

Construction of concrete carriageway, Question If construction of conc...

Question If construction of concrete carriageway is carried out in summer, be capable of expansion joints be omitted? Answer If construction of concrete carriageway

State the term - total loss of prestress, Total loss of prestress The ...

Total loss of prestress The total amount of losses of prestresses may be accounted for in a prestressed concrete member by adding different losses which may take place for tha

Methods of contouring by grid points, the elevations of grid points for an ...

the elevations of grid points for an area as follows: 1 2 3 4 5 6 7 8 F 690 709 726 732 735 740 743 747 E 696 715 729 736 740 737 739 740 D 702 723 733 742 737 737 745 747 C 707 72

Determine the required area of steel, A rectangular concrete beam is subjec...

A rectangular concrete beam is subjected to a factored moment (Mu) of 345 kip*ft.  The beam has the following properties: f'c = 5500 psi fy = 60,000 psi h = 39 in

Analysis of the two stage construction, A County is planning to build a new...

A County is planning to build a new roadway connector in the rapidly developing area of the county. The road can be built at a reduced capacity now for $30 million and can be widen

Maximum shear stress , the propane gas tank has an inner diameter of 1500mm...

the propane gas tank has an inner diameter of 1500mm and wall thickness of 15mm. If the wall is pressurized to 2MPa, determine the absolute maximum shear stress in the wall of tank

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