Ch. 6 – Shear in Beams

Ch. 6 – Shear in Beams - 1 Ch 6 Slide Ch 6...

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Unformatted text preview: 1 Ch. 6 Slide Ch. 6 – Shear in Beams • Reading: – Section 6-1: Introduction (p. 233) – Section 6-3: Behavior of Beams Failing in Shear (pp. 243-250 not including Section on fiber-reinforced concrete) – Section 6-5: Analysis and Design of Reinforced Concrete Beams for Shear – ACI Code • (pp.257-259 up to Eq. 6-18) • (pp. 266-270 up to High Strength Concrete) • Problems: Example 6-1 • Homework: posted on WebCt 2 Ch. 6 Slide SHEAR STRENGTH THEORY Behavior Before Cracking 3 Ch. 6 Slide Potential crack Principal stress trajectories SHEAR STRENGTH THEORY Behavior Before Cracking 4 Ch. 6 Slide Behavior After Cracking 5 Ch. 6 Slide Behavior After Cracking 6 Ch. 6 Slide Behavior After Cracking Figure 6-2 7 Ch. 6 Slide Beam 12 Load-Displacement Plot-10000 10000 20000 30000 40000 50000 2 4 6 8 10 12 14 Displacement (mm) Force (Newton) 8 Ch. 6 Slide Behavior After Cracking Types of Shear Failures Insufficient shear reinforcement Excessive shear stresses Shear failures are VERY brittle, occur with no warning and should be avoided in design 9...
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This note was uploaded on 04/09/2012 for the course SE 151A taught by Professor Restrepo during the Spring '12 term at UCSD.

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Ch. 6 – Shear in Beams - 1 Ch 6 Slide Ch 6...

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