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

Work, Grouted or Penetration Macadam:

Grouted or Penetration Macadam:

Define the process of eccentric prestressing, Define the proess of Eccentri...

Define the proess of Eccentric Prestressing In this form of prestressing, the centroid of cross-sectional areas of tendons is not located at the centroid of the cross-section.

Rubber dams – air-filled vs water-filled, Most of the existing rubber dams ...

Most of the existing rubber dams are of air-filled types. Water-filled rubber dams aren't preferred for the below reasons: (i)  By giving same sheet length and dam height, tensi

Measure the ultimate settlement due to pumping, A clay stratum of 18 metres...

A clay stratum of 18 metres thickness was found above a sand stratum when a boring was made. The clay was consolidated under the present overburden pressure. The hydrostatic pressu

Timber, What is exogenous tree?

What is exogenous tree?

Shoes of prefabricated drains, Q. Shoes of prefabricated drains? Shoes ...

Q. Shoes of prefabricated drains? Shoes are generally installed in prefabricated drains for the below : (i)  It avoids the entry of soils in the mandrel by sealing it at the

What is the group capacity, State the group efficiency of a rectangular gro...

State the group efficiency of a rectangular group of piles with 4 rows, 3 piles per row, the uniform pile spacing being 3 times the pile diameter. If the individual pile capacity i

NERNST EQUATION, HOW CAN I MAKE ASSIGNMENT ON THIS TOPIC

HOW CAN I MAKE ASSIGNMENT ON THIS TOPIC

Interface between base plates and footings, Interface between base plates a...

Interface between base plates and footings Surface of footings is generally quite rough so that some levelling has to be carried out for base plates. Interface between base pl

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