Ch. 8 &acirc;€“ Development of the Reinforcement

# Ch. 8 &acirc;€“ Development of the Reinforcement -...

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Unformatted text preview: 1 Ch. 8 Slide Ch. 8 – Development of the Reinforcement • Reading: – Section 8-3: Simplified Tension-Development Length Equations (pp. 363-366) – Section 8-4: Hooked Anchorages (pp. 368-369) – Section 8-7: Bar Cutoffs and Development of Bars in Flexural Members (pp. 380-388) • Problems: Examples 8-3 and 8-4 2 Ch. 8 Slide Concept of Development Length of a Bar in Tension e When the bar yields then l d = l 3 Ch. 8 Slide Factors Affecting the Development Length of a Bar In Tension • Bar size d b • Concrete tensile strength • Concrete density • Depth of fresh concrete cast below the bar • Proximity of bar to the side of the element • Bar-to-bar spacing • Clamping force provided by the transverse reinforcement Fig. 8-8 The larger the bar diameter, the longer its development length Splitting cracks are associated with the tensile strength of concrete Bars embedded in lower density concrete require a longer length to develop Free water in the mix accumulated below top bars, locally the...
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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. 8 &acirc;€“ Development of the Reinforcement -...

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