Project Cover Slab over GRP tank Sample Calc Client Made by Date Page

Location A to B: 1 to 2 -

2-WAY SPANNING INSITU CONCRETE SLABS to BS 8110:2005 (Table 3.14) Checked Revision Job No

v4.1 © 2006 TCC - - -

DIMENSIONS MATERIALS STATUS VALID DESIGNshort span, lx m 2.30 fcu N/mm² 40 1.50 A Blong span, ly m 2.60 fy N/mm² 460 1.15 Edge 1

h mm 200 steel class A 1Top cover mm 60 Density kN/m³ 25 Plan

Lx =

2.3

m

Btm cover mm 30 (Normal weight concrete)

Ed

ge 4

Ed

ge 2

EDGE CONDITIONSSelf weight kN/m² 5.00 Edge 1 D C = ContinuousExtra dead kN/m² 5.00 Edge 2 D D = Discontinuous Ly = 2.6 m

Total Dead, gk kN/m² 10.00 1.40 Edge 3 D

Imposed, qk kN/m² 10.00 1.60 Edge 4 D 2Design load, n kN/m² 30.00 See Figure 3.8 and clauses 3.5.3.5-6 Edge 3

SHORT LONG EDGE 1 EDGE 2 EDGE 3 EDGE 4 BS8110

MAIN STEEL SPAN x SPAN y Free Free Free Free Reference

ßs 0.068 0.056 0.000 0.000 0.000 0.000 Table 3.14

M kNm/m 10.8 8.9 0.0 0.0 0.0 0.0d mm 164.0 152.0 135.0 125.0 135.0 125.0k' 0.156 0.156 0.156 0.156 0.156 0.156k 0.010 0.010 0.000 0.000 0.000 0.000Z mm 155.8 144.4 128.3 118.8 128.3 118.8 3.4.4.4

As req mm²/m 173 154 0 0 0 0As min mm²/m 260 260 260 260 260 260 Table 3.25

As deflection mm²/m 173 154 ~ ~ ~ ~

Ø mm 12 12 10 10 10 10

Layer B 1 B 2 T 1 T 2 T 1 T 2

@ mm 425 425 300 300 300 300

As prov mm²/m 266 266 262 262 262 262

= % 0.162 0.175 0.194 0.209 0.194 0.209 %

S max mm 504 468 415 385 415 385 Clause

Subclause (a) (a) (a) (a) (a) (a) 3.12.11.2.7

DEFLECTIONfs 200 177 0 0 0 0 Eqn 8

Mod factor 2.000 Base ratio 20.0 Eqn 7

Perm L/d 40.00 Actual L/d 14.02 Asx enhanced 0.0% for deflection control Table 3.10

� TORSION STEEL BOTH EDGES DISCONTINUOUS ONE EDGE DISCONTINUOUS

Ø mm 10 X Y X YAs req mm²/m 260 260 3.5.3.5

As prov T mm²/m 262 262 5000 5000Additional As T req mm² 0 0 0 0

As prov B mm²/m 266 266 266 266Bottom steel not curtailed in edge strips at free edges

(See Figure 3.10) Sum ßvx = 0.744 Table 3.15

EDGE 1 EDGE 2 EDGE 3 EDGE 4 Sum ßvy = 0.667

1, A-B B, 2-1 2, A-B A, 2-1 equations

ßv 0.372 0.333 0.372 0.333 19 & 20

Dead kN/m 8.55 7.67 8.55 7.67

Imposed kN/m 8.55 7.67 8.55 7.67Vs kN/m 25.7 23.0 25.7 23.0

OUTPUT/SUMMARYSHORT LONG EDGE 1 EDGE 2 EDGE 3 EDGE 4

PROVIDE SPAN SPAN 1, A-B B, 2-1 2, A-B A, 2-1

MAIN STEEL X12 @ 425 B1 X12 @ 425 B2 X10 @ 300 T1 X10 @ 300 T2 X10 @ 300 T1 X10 @ 300 T2

ADDITIONAL CORNER 1 CORNER 2 CORNER 3 CORNER 4TORSION STEEL A1 B1 B2 A2

X direction placed in edge strips

Y direction

CHECKS BAR Ø SINGLY MIN MAX GLOBALLx > Ly < COVER REINFORCED SPACING SPACING DEFLECTION STATUS

OK OK OK OK OK OK VALID DESIGN

Originated from RCC94.xls

gc =gs =

LOADING characteristic

gf=

gf=

SUPPORT REACTIONS (kN/m char uno)

Project Cover Slab over GRP tank

Location A to B: 1 to 2 2-WAY SPANNING INSITU CONCRETE SLABS to BS 8110:2005 (Table 3.14) Made by Job No -

Originated from RCC94.xls v4.1 © 2006 TCC Date 30-Dec-99

APPROXIMATE WEIGHT of REINFORCEMENT

SUPPORT WIDTH GRIDLINE 1 B 2 A(mm) WIDTH 200 200 200 200

TOP STEEL Type Dia Spacing No Length Unit wt WeightAcross grid 1 X 10 @ 300 8 625 0.617 3.1Across grid B X 10 @ 300 7 625 0.617 2.7Across grid 2 X 10 @ 300 8 625 0.617 3.1

Across grid A X 10 @ 300 7 625 0.617 2.7

Along grid 1 X 10 @ 300 2 2400 0.617 3.0Along grid B X 10 @ 300 2 2100 0.617 2.6Along grid 2 X 10 @ 300 2 2400 0.617 3.0Along grid A X 10 @ 300 2 2100 0.617 2.6

Torsion bars X 10 0 0 0.617 0.0

BOTTOM STEELShort span - middle X 12 @ 425 5 2125 0.888 9.4

edges X 12 @ 425 2 2425 0.888 4.3Long span - middle X 12 @ 425 5 2500 0.888 11.1

edges X 12 @ 425 0 2525 0.888 0.0

SUMMARYReinforcement density (kg/m³) 33.9 Total reinforcement in bay (kg) 47

Disclaimer

Status of spreadsheet

Public release version.

Date Version Action3-Oct-13 RCC94 v4.1 Selection of deflection base ratio clarified. 163

1-Apr-10 RCC94 v4.0 Re-badged as TCC/Mineral Products Association. 246

28-Jun-06 RCC94 v3.1 v3 release. Page nos, User Guide and registration details amended. 212

12-Nov-05 RCC94 v3.0 Updated to 2005 versions of BS8110 & BS8666 239

22-Jan-03 RCC94 v2.1 DETR logo replaced by DTI. 206

11-Oct-02 RCC94 v2.0 Version 2 enhancements 224

22-Jun-00 RCC94 v1.3 136

8-Jun-00 RCC94 v1.2 MAIN:D34 etc corrected to include As min. 135

24-Mar-00 RCC94 v1.1 135

6-Aug-99 RCC94 v1.0 136

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This spreadsheet should be used in compliance with the accompanying publication 'User Guide RC Spreadsheets: v4' available from The Concrete Centre www.concretecentre.com/rcdesign Tel +44 (0)1276 606800

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Revision history RCC94 Two-way Slabs (Tables)

Size (kB)

Orientation warning added at MAIN:Q21 (N Thomas)Conditional formating Main!K10:P19 altered

MAIN:F46 moved to correct position, MAIN:D64-D67 reformatted, continuity hatching added to diagram.

First public release. Includes b version comments