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

Chemical prestressing, Chemical prestressing In prestressed concrete, ...

Chemical prestressing In prestressed concrete, normally tendons are stretched and are retained in a stretched condition by concrete. Consequently, concrete comes under compres

Assignment., classification and characterstics of lintels

classification and characterstics of lintels

Calculate the annual cost of alum - coagulation, Incoming water contains 2....

Incoming water contains 2.5 mg/L as a substance of natural alkalinity (HCO 3 - ). The flow rate is 9.5 ML/day). (a) What feed rate is required if the alum dose is 7 mg/L and

Necessity of air voids in bituminous pavement, Q. Necessity of air voids in...

Q. Necessity of air voids in bituminous pavement? If the presence of air voids is too high, it results in an increase of permeability of bituminous pavement. This enables the f

Landing stages - water transportation, Landing Stages: A landing stage...

Landing Stages: A landing stage is a floating structure, usually a pontoon or a barge, which is secured to the shore by mooring chains. Small ships can dock against the landin

Explain rebound hammer - underwater non-destructive testing, Explain Reboun...

Explain Rebound Hammer - Underwater non-destructive testing? The underwater rebound hammer system is a surface hardness tester which can be employed to acquire a general condit

Concrete, What is Polymer Concrete?

What is Polymer Concrete?

Lintel, Classification of lintels

Classification of lintels

Design of the aeration basin based on solids retention time, Design of the ...

Design of the Aeration Basin Based on Solids Retention Time - sewer construction: You are provided the following information about a municipal wastewater treatment plant. That

Compute the included angles, Example. With a surveyor compass the ang...

Example. With a surveyor compass the angles observed in traversing the lines AB, BC, CD, DE and EF are  as. Compute the included angles and indicate them in a neat sketch.

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