This preview shows pages 1–4. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: the design is complete with A s =A s1 +A s2 and A s ’ as computed in step (iii). (v) If A s ’ does not yield at failure, select actual bar sizes for A s ’ and check with the quadratic equation to compute the distance to the neutral axis c , the stress f s ’ , and the required value of A s ’ from M n ’=A s ’(f s ’.85f c ’)(dd’). If the required value of A s ’ is less than the actually provided value then the design is conservatively completed. 2. A beam has the same material properties and loading as in Problem 1. However, the effective depth of the beam is limited to d =21 in. due to architectural considerations. The width of the beam is increased to b =16 in. to improve the beam strength at the reduced effective depth. Design the flexural reinforcement for this beam at the tension controlled limit of ε t =0.005 as in Problem 1. Specify bar sizes to provide the required A s ’ and A s ....
View
Full
Document
This document was uploaded on 03/03/2010.
 Spring '09

Click to edit the document details