MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
9th Edition
ISBN: 9781337705202
Author: Das, Braja M., SIVAKUGAN, Nagaratnam
Publisher: Cengage Learning
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Chapter 2, Problem 2.19P

(a)

To determine

Find the pore water pressure at failure in the second specimen.

(b)

To determine

Find the Skempton’s pore water pressure parameter A at failure.

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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
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