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

Determining the amount of pre-camber, 1. Domes - You are a construction man...

1. Domes - You are a construction manager in the UAE in charge of a project that involves constructing domes.  Discuss briefly, giving examples, a range of different types of dome

Calculate annual interest rate which is compounded monthly, You wish to buy...

You wish to buy a house and you can afford to make a down payment of $50,000. Your monthly mortgage payment cannot exceed $2,000. If 30-year loans are available at 7.5% annual inte

Proctor test for GSB material, what is the procedure for gsb proctor test f...

what is the procedure for gsb proctor test for matrial sampling for lab density

Define fathometer with the odolite - sounding/sensing device, Define Fathom...

Define Fathometer with the odolite - Sounding/Sensing Devices? The horizontal scale problem in use of Fathometer can be solved by using equipment, which combines a Fathometer w

Determine the Critical Euler Buckling Load, a) Determine the critical Eule...

a) Determine the critical Euler buckling load of a solid aluminium rod of 12 mm diameter if it has a length of 1.0 m between pin-ended supports. (E = 70000 N/mm2)       b) A

Define collisions - underwater inspection of bridge, Define Collisions - Un...

Define Collisions - Underwater Inspection of Bridge? Structural damage to underwater portions of a bridge can either be collision related or direct result of a collision. Colli

Diving operation - preparation for underwater inspection, Define Diving Ope...

Define Diving Operation - Preparation for underwater inspection? Use of experienced divers trained and screened by a reputed commercial diving school is critical for successful

Is kerb necessary in road pavements, Question Is kerb necessary in road...

Question Is kerb necessary in road pavements? Answer In universal, kerbs are crucial in road pavements due to next cause- (i) They supply strength to sides of road

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