Scribd
Upload
92 views2 pages

Structural Design Analysis

This document provides a summary of the design of a 2-way reinforced concrete slab. It includes information on the design code used, material properties, design loads, section size, slab type and support, load calculations, minimum thickness check, and capacity checks of the slab for moment and shear in the X and Y directions. Reinforcement details are provided for top, middle, and bottom regions of the slab. Moment and shear coefficients and capacity/demand ratios are calculated at various points on the slab.

Uploaded by

mumarbsc7244
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
92 views2 pages

Structural Design Analysis

This document provides a summary of the design of a 2-way reinforced concrete slab. It includes information on the design code used, material properties, design loads, section size, slab type and support, load calculations, minimum thickness check, and capacity checks of the slab for moment and shear in the X and Y directions. Reinforcement details are provided for top, middle, and bottom regions of the slab. Moment and shear coefficients and capacity/demand ratios are calculated at various points on the slab.

Uploaded by

mumarbsc7244
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 2

http://www.midasuser.

com
MIDASIT TEL:1577-6618 FAX:031-789-2001

MEMBER NAME : S01

1. General Information
(1) Design Code : ACI318-11
(2) Unit System : lbf, in
Ly

2. Material Lx/4 Ly - Lx/2 Lx/4


(1) F'c : 3.000psi
(2) Fy : 40.00psi y

x
3. Design Load
B1
(1) Dead Load : 0.189kip/ft^2
(2) Live Load : 0.0418kip/ft^2

Lx/4
4. Section Size
(1) Span(X) : 10.00ft Y1
(2) Span(Y) : 12.00ft
Lx/2

Y2
Lx

(3) Thickness : 5.000in


Y3
(4) Cover : 0.750in
(5) Use clear span : Yes B3

B4
Lx/4

5. Slab Type & Support


(1) Slab Type : 2-Way Slab
(2) Support Type : Case-8
(3) Boundary Beams B2 x 23.62 / B4 : 15.75 x 23.62
: B1 : 15.75 x 23.62 / B2 : 15.75 x 23.62 / B3 : 15.75
X1 X2 X3

6. Check Load
(1) Calculate factored load
LCB01 = 22.05kip/ft^2 ( 1.4D )
LCB02 = 24.47kip/ft^2 ( 1.2D+1.6L )
ωu = 24.47kip/ft^2

7. Check Thickness of Slab


(1) Calculate factors
β = lny / lnx = 1.230
αm = 26.77 (α1 = 26.19, α2 = 38.32, α3 = 21.29, α4 = 21.29)
(2) Calculate minimum thickness required
ln (0.8 + (fy / 200000))
hreq = = 3.500in
36 + 9β
h = 5.000 > hreq = 3.500 -> O.K

8. Check Capacity of Slab


(1) Calculate Moment & Shear [ Direction X ]

Check Items TOP MIDDLE BOTTOM


Bar-1 #3@6.000 - #3@17.72

Bar-2 #3@12.00 #3@17.72 #3@17.72

Bar-3 #3@17.72 #3@17.72 #3@17.72

Moment Coefficient (DL) 0.000 0.0313 0.000

Moment Coefficient (LL) 0.000 0.0430 0.000

Moment Coefficient (FL) 0.0535 0.000 0.000

Shear Coefficient 0.535 0.000 0.000

Mu (kip.in/ft) 14.23 9.022 3.007

Vu (kip/ft) 0.682 0.000 0.000

øMn (kip.in/ft) 45.70 21.27 21.27

øVn (kip/ft) 4.005 4.005 4.005

Mu / øMn 0.311 0.424 0.141

2018-05-08 1
http://www.midasuser.com
MIDASIT TEL:1577-6618 FAX:031-789-2001

MEMBER NAME : S01

Vu / øVn 0.170 0.000 0.000

(2) Calculate Moment & Shear [ Direction Y ]

Check Items LEFT CENTER RIGHT


Bar-1 #3@6.000 - #3@6.000

Bar-2 #3@12.00 #3@12.00 #3@12.00

Bar-3 #3@17.72 #3@17.72 #3@17.72

Moment Coefficient (DL) 0.000 0.0155 0.000

Moment Coefficient (LL) 0.000 0.0198 0.000

Moment Coefficient (FL) 0.0423 0.000 0.0423

Shear Coefficient 0.465 0.000 0.465

Mu (kip.in/ft) 17.01 6.628 17.01

Vu (kip/ft) 0.730 0.000 0.730

øMn (kip.in/ft) 41.25 23.69 41.25

øVn (kip/ft) 3.636 3.636 3.636

Mu / øMn 0.412 0.280 0.412

Vu / øVn 0.201 0.000 0.201

2018-05-08 2

You might also like