Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 2, Problem 2.10P
To determine
The intercepts of the given planes with
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A double-T simply supported concrete beam its cross section is shown in
Figure, is prestressed with 2 tendons each 400 mm². Determine the allowable
service load.
Use span 12 m, fse = 1300 MPa, fe = 40 MPa, y = 25 kN/m³.
=
1200 mm
>09
*100*
As = 400
+100+
As = 400
400
1400+
A double-T simply supported concrete beam its cross section is shown in
Figure, is prestressed with 2 tendons each 400 mm². Determine the allowable
service load.
Use span 12 m, fse = 1300 MPa, fc = 40 MPa, y = 25 kN/m³.
=
1200 mm
>09<
*100*
As = 400
+100+
As = 400
400
1400+
A prestressed simply supported 15 m span beam with rectangular box section is post-tensioned by
straight high tensile steel wires as shown in Figure. The prestressing wires are placed at the center
line of the flanges and initially stressed to 850 N/mm². The beam is required to carry a uniformly
distributed superimposed load of 4.5 kN/m in addition to its weight. If the concrete stresses are not
to exceed 17 MPa in compression and 1 MPa in tension at service stage, calculate the range of the
total prestressing wires area required. Ignore prestressing force losses in your answer. (Ye
kN/m³).
= 24
2As
400
As
80
80;
750
Chapter 2 Solutions
Materials Science And Engineering Properties
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