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Concrete Corbel Design Guide

This document summarizes the design of a concrete corbel according to NSCP 2010 design standards. It provides the design loads and material properties, then shows calculations for the required shear friction, flexural, axial, and stirrup reinforcement. Based on the calculations, the corbel is designed with 8 #28 mm diameter bars for main tension reinforcement, 4 #16 mm bars for secondary reinforcement, and 4 #16 mm diameter closed stirrups spaced at 100 mm. The overall corbel dimensions are 600 mm height, 400 mm length, and 300 mm outer depth.

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Franklyn P. Genove
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534 views2 pages

Concrete Corbel Design Guide

This document summarizes the design of a concrete corbel according to NSCP 2010 design standards. It provides the design loads and material properties, then shows calculations for the required shear friction, flexural, axial, and stirrup reinforcement. Based on the calculations, the corbel is designed with 8 #28 mm diameter bars for main tension reinforcement, 4 #16 mm bars for secondary reinforcement, and 4 #16 mm diameter closed stirrups spaced at 100 mm. The overall corbel dimensions are 600 mm height, 400 mm length, and 300 mm outer depth.

Uploaded by

Franklyn P. Genove
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as XLSX, PDF, TXT or read online on Scribd
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Design of Concrete Corbel (in accordance to NSCP 2010)

Design Data:

Concrete fc' = 28 MPa Horizontal F = 330.00 kN


Steel fy = 276 MPa shear span, av = 300 mm
Service DL = 350.00 kN width, b = 600 mm
Service LL = 150.00 kN friction u = 1.4

Computations:

FACTORED LOADS SHEAR FRICTION REINFORCEMENT


Vu = 660.00 kN reqd Avf = 2277 mm^2
Nuc = 330.00 kN
FLEXURE REINFORCEMENT
PRELIM BRACKET SIZE 210.87 kN-m
brg pl L = 75 mm Mu' = 214.50 kN-m
reqd Ru = 2.822 MPa
DEPTH OF BRACKET FOR SHEAR reqd p = 0.01091
Vn = 880 kN 4/3 p = NA
d1 = 261.90 mm use p = 0.01091
d2 = 264.74 mm reqd Af = 2692 mm^2
d3 = 133.33 mm
shear d = 264.74 mm AXIAL TENSION REINFORCEMENT
reqd An = 1594 mm^2
DEPTH OF BRACKET FOR FLEXURE
Mu = 214.50 kN-m TOTAL MAIN REINFORCEMENT
min p = 0.00406 Asc1 = 4286 mm^2
m = 11.60 Asc2 = 3112 mm^2
Ru = 1.094 MPa reqd Asc = 4286 mm^2
reqd d = 660 mm bar dia. = 28 mm
a/d = 0.45 OK no. of bars = 7.0 pcs
min d = 300 mm use n = 8 pcs
rdance to NSCP 2010) Project Name: THE BLOQ RESIDENCE
L= 400

Vu

av= 300

Nuc

y= 300

h= 600

300

8 - 28 mm dia
4 - 16 mm dia

DEPTH OF BRACKET
try h = 450 mm
d= 411 mm

CLOSED STIRRUP REQUIREMENTS OVERALL BRACKET DIMENSION


Ah = 1346 mm^2 plate t = 25 mm
bar dia. = 16 mm overall h = 450 mm
no. of ties = 3.3 pcs use h = 600 mm
use n = 4 ties bracket L = 388 mm
Ah,furn = 1608 mm^2 use L = 400 mm
spacing = 100 mm outer depth, y = 300 mm
adopt s = 100 mm use y = 300 mm

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