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

Scheming thermal reinforcement, Question What is importance of critical...

Question What is importance of critical steel ratio in scheming thermal reinforcement ? Answer Execution of critical steel ratio resources that in construction joints,

#surveying, Finding distances in tacheometric survey

Finding distances in tacheometric survey

What is long welded rail, Q. What is Long Welded Rail? Long Welded Rail...

Q. What is Long Welded Rail? Long Welded Rail is a welded rail the central part of which dose not under go any longitudinal movement due to temperature variation, normally a le

Explain the dry density and buoyant unit weight, A partially saturated soil...

A partially saturated soil from an earth fill has a natural water content of 19% and a bulk unit weight of 19.33 kN/m 3 . Suppose the specific gravity of soil solids as 2.7, comput

Measurement of cement and aggregates, Measurement of cement and aggregates ...

Measurement of cement and aggregates - by weight vs. by volume Measurement of constituents for concrete is usually carried out by weight since of the following reasons: (i)

State the increase in earth pressure at rest, A wall with a smooth vertical...

A wall with a smooth vertical back and 9 metres high retains a moist cohesionless soil with a horizontal surface. The soil weighs 15 kN/m3 and has an angle of internal friction of

Cross section diagram of urban road, cross section diagram of urban roan in...

cross section diagram of urban roan in embankment,in cut,in eight lane,in conjusted area,divided hihgway

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

State the ground water levels, Ground Water Levels The location of the...

Ground Water Levels The location of the ground water level is essential for deep excavation, water-logged areas. The existing wells in the nearby vicinity of the proposed site

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