The concrete beam shown below is made of an all-lightweight concrete with a unit weight y =1850 kg/m. a. Compute the value of the cracking moment and b. Estimate the value of the concentrated load P at midspan that causes the beam to crack (include the dead weight of the beam). fe = 27.6 MPa 100 mm P=? Wbeam 2-D25 - 4.2 m 100 mm 100 mm 300 mm 40 mm

The concrete beam shown below is made of an all-lightweight concrete with a unit weight y =1850 kg/m. a. Compute the value of the cracking moment and b. Estimate the value of the concentrated load P at midspan that causes the beam to crack (include the dead weight of the beam). fe = 27.6 MPa 100 mm P=? Wbeam 2-D25 - 4.2 m 100 mm 100 mm 300 mm 40 mm

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.7P: Estimate the transverse tensile strength of the concrete in Problem 12.6.

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Question

1. The concrete beam shown below is made of an all-lightweight concrete with a unit weight
y =1850 kg/m .
a. Compute the value of the cracking moment and
b. Estimate the value of the concentrated load P at midspan that causes the beam to crack
(include the dead weight of the beam). fe = 27.6 MPa
100 mm
P = ?
W beam
2-D25 -
4.2 m
100 mm
100 mm
300 mm
40 mm
400 mm

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