Draw the shape of the pressure line, Civil Engineering

Assignment Help:

Draw the shape of the Pressure line.

Solution

The locations of resultant force at sections A-A, B-B  and C-C have already been determined. Joining these locations, we can draw pressure line curves for the case (a) and (b), as shown in Figure 5.9. In Figure the distances of pressure line ordinates have been shown from tendon line whereas in Example the locations of  resultant force at various sections in both cases were calculated from the top fiber.

We have seen in the previous example that the pressure line drifted towards the higher side of  the beam at a sectioc where the bending moment due to external loads was greater in magnitude. In a similar manner, it can be shown that a larger resultant load would be represented if  the pressure line moved up even higher. Keeping the same reasoning, for a uniform load applied upward rather than downward, the result would be a downward movement of the pressure line. Therefore, a change in  the external moments  in the elastic range of a pre-stressed beam results in a movement of the pressure line in the beam.

 

541_Civil engineering.png


Related Discussions:- Draw the shape of the pressure line

Define inspection of pier or abutment, Define Inspection of Pier or Abutmen...

Define Inspection of Pier or Abutment? Inspection of pier/abutment may then be carried out as under: i. Conduct visual inspection of the entire surface using up and down swe

Test on complete bearings, Q. Test on complete bearings? Two bearings s...

Q. Test on complete bearings? Two bearings should be selected at random from the 'lot'. Various tests should be conducted on these 'test bearings'. These bearings should be exc

Marine facilities, define and explain various marine facilities

define and explain various marine facilities

Explain the confined aquifer and piezometric surface, Explain the Confined ...

Explain the Confined Aquifer and Piezometric Surface Confined Aquifer Groundwater is confined by impervious geologic stratums on all sides. The water may be under pressure.

Compare the probabilities, Compare the probabilities: Use the central ...

Compare the probabilities: Use the central limit theorem to compute P (¦ X - μ ¦ ≥ k), k = 1, 2,3,4,5 where X and μ are as defined in Example. Compare the probabilities with t

Determine about the post-tensioned concrete, Determine about the post-tensi...

Determine about the post-tensioned concrete The transfer stage may take place after a long time from the casting of concrete, in the case of post-tensioned,members, enabling th

Compute the skin friction resistance, A 30 cm diameter pile penetrates a de...

A 30 cm diameter pile penetrates a deposit of soft clay 9 m deep and rests on sand. Compute the skin friction resistance. The clay has unit cohesion of 0.6 kg/cm 2 . Suppose

Breast walls, Breast Walls Needed to buttress uphill slopes. ...

Breast Walls Needed to buttress uphill slopes. Figure : Breast Check Walls Small retaining structures provided in series to arrest landslides. Gabio

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