1
GATE CE 2024 Set 1
Numerical
+2
-0.833
An inverted T-shaped concrete beam (B1) in the figure, with centroidal axis X – X, is subjected to an effective prestressing force of 1000 kN acting at the bottom kern point of the beam cross-section. Also, consider an identical concrete beam (B2) with the same grade of concrete but without any prestressing force.
The additional cracking moment (in kN.m) that can be carried by beam B1 in comparison to beam B2 is ________ (rounded off to the nearest integer).
Your input ____
2
GATE CE 2017 Set 2
Numerical
+2
-0
A simply supported rectangular concrete beam of span $$8$$ $$m$$ has to be prestressed with a force of $$1600$$ $$kN.$$ The tendon is of parabolic profile having zero eccentricity at the supports. The beam has to carry an external uniformly distributed load of intensity $$30$$ $$kN/m.$$ Neglecting the self - weight of the beam, the maximum dip (in meters, up to two decimal places) of the tendon at the mid-span to balance the external load should be _______________
Your input ____
3
GATE CE 2017 Set 1
Numerical
+2
-0
A pre-tensioned rectangular concrete beam $$150$$ $$mm$$ wide and $$300$$ $$mm$$ depth is prestressed with three straight tendones, each having a cross-sectional area of $$50$$ $$m{m^2},$$ to an initial stress of $$1200$$ $$N/m{m^2}.$$ The tendons are located at $$100$$ $$mm$$ from the soffit of the beam. If the modular ratio is $$6,$$ the loss of prestressing force (in $$kN,$$ up to one decimal place) due to the elastic deformation of concrete only is ________
Your input ____
4
GATE CE 2015 Set 2
MCQ (Single Correct Answer)
+2
-0.6
In a pre-stressed concrete beam section shown in the figure, the net loss is $$10\% $$ and the final prestressing force applied at $$X$$ is $$750$$ $$kN.$$ The initial fiber stresses (in $$N/m{m^2}$$ ) at the top and bottom of the beam were:
![GATE CE 2015 Set 2 Reinforced Cement Concrete - Prestressed Concrete Question 8 English](https://gateclass.static.cdn.examgoal.net/YkVD40Nz7zMDw8lP4/x4pJeNrBonFrHGXNMnu1vhBcI93jx/sJXIskh5fRjWVAsBAElmH9/uploadfile.jpg)
Questions Asked from Prestressed Concrete (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE CE Subjects
Construction Material and Management
Geomatics Engineering Or Surveying
Levelling Traversing Theodolites and Plane Table Surveying Measurement of Area, Volume and Theory of Errors and Survey Adjustment Field Astronomy and Photogrammetric Surveying Basics of GIS, GPS and Remote Sensing Angular Measurements and Compass Survey Basic Concepts Linear Measurements and Chain Survey
Engineering Mechanics
Hydrology
Transportation Engineering
Strength of Materials Or Solid Mechanics
Reinforced Cement Concrete
Steel Structures
Environmental Engineering
Engineering Mathematics
Structural Analysis
Geotechnical Engineering
Fluid Mechanics and Hydraulic Machines
General Aptitude