Question
In: Civil Engineering
A post-tensioned concrete beam, 170 mm wide and 320 mm deep, is prestressed five wires of...
A post-tensioned concrete beam, 170 mm wide and 320 mm deep,
is prestressed five wires of 8 mm diameter located at constant
eccentricity of 50 mm and carrying an initial stress of 840 N/mm.
The span of the beam is 10 m. Calculate the percentage loss of
stress in wires for The beam is pretensioned and The beam is post-
tensioned. Using the following data: Es = 210 kN/mm2, Ec = 35
kN/mm, Creep coefficient = 1.6, %3D Relaxation of steel stress = 5
per cent of the initial stress, Slip at anchorage 1 mm, Frictional
coefficient for wave effect = 0.0015 per m, Shrinkage of concrete
=300x10 for pretensioning and 200x10° for post-tensioning
concrete
iwan’t answer after 30 minuts please
Solutions
Ally Wells answered 1 year agoRelated Solutions
A prestressed concrete beam with a rectangular sectin 120 mm wide by 300 mm deep supports...
A prestressed concrete beam with a rectangular sectin 120 mm
wide by 300 mm deep supports a a live load of 3 kN/m. The spanning
over 6 m is prestressed by a straight cable carrying an effective
prestressing force of 200000 N located at an eccentricity of 55 mm,
the density of concrete 24 kN/m3. Find : (1)- The resultant stress
distribution for the centre of span cross section of the beam (2)-
the presressing force which can balance the...
) A 1200 mm deep by 750 mm wide post-tensioned simply supported beam is shown below....
) A 1200 mm deep by 750 mm wide post-tensioned
simply supported beam is shown below. The beam spans 12.0 m and is
subject to a superimposed dead load of 50 kN/m and a live load of
35 kN/m. Both the superimposed dead load and live load are applied
after transfer (after stressing has taken place). The tendon is
located at the mid-height of the beam at each end, and its
centreline sits 50 mm from the base at midspan....
A 1200 mm deep by 750 mm wide post-tensioned simply supported beam is shown below. The...
A 1200 mm deep by 750 mm wide post-tensioned simply supported
beam is shown below. The beam spans 12.0 m and is subject to a
superimposed dead load of 50 kN/m and a live load of 35 kN/m. Both
the superimposed dead load and live load are applied after transfer
(after stressing has taken place). The tendon is located at the
mid-height of the beam at each end, and its centreline sits 50 mm
from the base at midspan. The...
A 1200 mm deep by 750 mm wide post-tensioned simply supported beam is shown below. The...
A 1200 mm deep by 750 mm wide post-tensioned simply supported
beam is shown below. The beam spans 12.0 m and is subject to a
superimposed dead load of 50 kN/m and a live load of 35 kN/m. Both
the superimposed dead load and live load are applied after transfer
(after stressing has taken place). The tendon is located at the
mid-height of the beam at each end, and its centreline sits 50 mm
from the base at midspan. The...
A 1200 mm deep by 750 mm wide post-tensioned simply supported beam is shown below. The...
A 1200 mm deep by 750 mm wide post-tensioned simply supported
beam is shown below. The beam spans 12.0 m and is subject to a
superimposed dead load of 50 kN/m and a live load of 35 kN/m. Both
the superimposed dead load and live load are applied after transfer
(after stressing has taken place). The tendon is located at the
mid-height of the beam at each end, and its centreline sits 50 mm
from the base at midspan. The...
. A symmetrical rectangle box section prestressed concrete beam of external width of 300 mm and...
. A symmetrical rectangle box section prestressed
concrete beam of external width of 300
mm and external depth of 600 mm with a uniform thickness of 40 mm
is prestressed with 7
numbers straight steel wires of 7 mm diameter located at a distance
of 15 mm from the bottom
of the soffit and 5 number of 5mm diameter of the steel wires
located at the 575 mm from the
bottom of the beam . The wires were initially tensioned...
a. A symmetrical rectangle box section prestressed concrete beam of external width of 300 mm and...
a. A symmetrical rectangle box section prestressed concrete beam
of external width of 300 mm and external depth of 600 mm with a
uniform thickness of 40 mm is prestressed with 7 numbers straight
steel wires of 7 mm diameter located at a distance of 15 mm from
the bottom of the soffit and 5 number of 5mm diameter of the steel
wires located at the 575 mm from the bottom of the beam . The wires
were initially tensioned...
a. A symmetrical rectangle box section prestressed concrete beam of external width of 300 mm and...
a. A symmetrical rectangle box section prestressed concrete
beam of external width of 300 mm and external depth of 600 mm with
a uniform thickness of 40 mm is prestressed with 7 numbers straight
steel wires of 7 mm diameter located at a distance of 15 mm from
the bottom of the soffit and 5 number of 5mm diameter of the steel
wires located at the 575 mm from the bottom of the beam . The wires
were initially tensioned...
a. An unsymmetrical I section prestressed concrete beam of top flange (350 X 40 mm) in...
a. An unsymmetrical I section prestressed concrete beam of top
flange (350 X 40 mm) in size, bottom flange of (200 X 40 mm), 30mm
thickness of web and overall depth of 400 mm is prestressed with 19
numbers straight steel wires of 7 mm diameter located at a distance
of 15 mm from the bottom of the soffit and 9 numbers of straight
steel wires of 6 mm diameter located at a distance of 15 mm from
the top...
a. An unsymmetrical I section prestressed concrete beam of top flange (350 X 40 mm) in...
a. An unsymmetrical I section prestressed concrete beam of top
flange (350 X 40 mm) in size, bottom flange of (200 X 40 mm), 30mm
thickness of web and overall depth of 400 mm is prestressed with 19
numbers straight steel wires of 7 mm diameter located at a distance
of 15 mm from the bottom of the soffit and 9 numbers of straight
steel wires of 6 mm diameter located at a distance of 15 mm from
the top...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Discuss intangibility, inseparability, contingent consumption and heterogeneity features of financial services marketing
- Steam used to sterilize fermentation equipment is piped 20 m from a factory boiler room through...
- Research supports the idea that - 30 minutes of activity is optimal for weight loss -...
- Instructions: Complete the following case study and upload it to the assignment section prior to the...
- Compare and contrast two of the personality theories in psychology. (250 words)
- Language:c++ choice b and c dont display the file rearranged why is that and how can...
- In Python Write a function to read a Sudoku board from an input string. The input...
ADVERTISEMENT