Fundamentals Of Structural Analysis:
5th Edition
ISBN: 9781260083330
Author: Leet, Kenneth
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Question
Chapter 13, Problem 7P
To determine
Find the reactions at the supports.
Sketch the shear and moment diagrams of the beam.
Check the results by moment distribution method.
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TITLE: DESIGN OF SINGLY REINFORCED RECTANGULAR BEAMS USING STRENGTH DESIGN METHOD.
PROBLEM:
Design a rectangular concrete beam section for positive moment and negative moment for the loads
(unfactored) and p values given. Show sketch of cross section, including bar size, arrangement and
spacing. Use concrete weight = 236 kN/m³, fy = 414 MPa, f`c = 27.6 MPa, p = 0.5Pmax
concrete cover = 40 mm, tie bar = 10 mm Ø.Deadload : w₁₁ = 90 kN/m
Live Load: WLL = 40 kN/m and PLL = 3kN. Assume beam weight equal to 8 kN/m.
PLL
W = WDL + WLL +Selfweight of beam
3.5m
7 m
3.5m
Use p =Pmax (SUPPORT ONLY)
COMPUTATION:
Required:
1. Factored Load
2. Required moment Mu, using NSCP 2015 load combination.
a. at the left support
b. at the mid-span
c. at the right support
3. Design a singly reinforced rectangular beam:
a. at the left support
b. at the mid-span
c. at the right support
Use b=0.54d and 32-mm diameter bar.
4. Check adequacy:
a. at the left support
b. at the mid-span
c. at the right support
SKETCH
For the truss and loading shown given that thedistances AD=DG=12, BE=EH=12, and GH=12, determine the forcesof each member
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