Design and drawing of RC Structures

CV61

Dr. G.S.Suresh

Civil Engineering Department

The National Institute of Engineering

Mysore-570 008

Mob: 9342188467 Email: gss_nie@yahoo.com

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Learning out Come• Content of the course• Scheme of Examination• Reference Books• Introduction to structural Drawing• General Lay out Drawings• Case Study on Lay out drawings

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Contents of the CoursePart-A

(Structural Detailing including Bar bending )

• Layout Drawing• Beams and Slabs• Stair case• Column Footing

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Contents of the Course (Contd.)

Part-B(Design and Drawing )

• Portal Frame• Water Tanks• Retaining Wall• Combined footing

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Scheme of Examination

Part A• Answer 2 questions out of 3: Each 20 Marks

Part B• Answer 1 Question out of 2: 60 Marks

• Duration: 4 Hours

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Reference Books

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• STRUCTURAL CONCEPTS AND SYSTEMS FOR ARCHITECTS & ENGINEERS - T.Y.LIN & S.D.STOTES BURY- JOHN WILLEY & SONS.

• REINFORCED CONCRETE DESIGNER’S HANDBOOK - CHARLES REYNOLDS & JAMES

STEEDMAN - SPON

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• HANDBOOK OF CONCRETE ENGINEERING - MARK FINTEL- CBS PUBLISHERS & DISTRIBUTORS

• Hand book on Design and Detailing of Structures - P.Dayaratnam- Wheeler Publishing

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• MULTI-STORY FRAMES – CALCULATION & MOMENT TABLES. - Dr.ENG.F.TAKABEYA- WILHELM ERNST & SONS.

• Reinforced Concrete Structures Vol.1 and Vol.2 - B.C.Punmia- Lakshmi Publication

• Structural Design and Drawing - N.Krishna Raju- University Press

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• HANDBOOK ON CONCRETE REINFORCEMENT AND DETAILING – SP34 (S&T) – BIS

• REINFORCED CONCRETE DETAILER’S MANUAL– B.W.BOUGHTON – ELBS

• ACI DETAILING MANUAL – AMERICAN CONCRETE INSTITUTE

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• REINFORCEMENT DETAILING MANUAL – ROBIN WHITTLE – A VIEW POINT PUBLICATION.

• REINFORCED CONCRETE STRUCTURES – R.PARK & T.PAULAY – JOHN WILEY & SONS

• Problems in Structural Drawing – A.Yakubovich – MIR Publishers

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1. LAYOUT DRAWING

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Introduction• Drawing is the language of engineers• Structural drawings guide builders in the

construction• The guidelines given in IS 962 and SP 34• Drawings are prepared in different sizes• In large projects, the structural drawings

are of same size

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Introduction (Contd.)

Sl. No. Designation Trimmed Size in mm

Un Trimmed Size (Min) in mm

1 A0 841 x 1189 880 x 1230

2 A1 594 x 841 625 x 880

3 A2 420 x 594 450 x 625

4 A3 297 x 420 330 x 450

5 A4 210 x 297 240 x 330

6 A5 148 x 210 165 x 240

PAPER SIZE

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MARGINS AND DIVISION OF DRAWING SHEETS A0 Size

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MARGINS AND DIVISION OF DRAWING SHEETS A1 Size

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MARGINS AND DIVISION OF DRAWING SHEETS A2 Size

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MARGINS AND DIVISION OF DRAWING SHEETS A3 Size

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MARGINS AND DIVISION OF DRAWING SHEETS A4 Size

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MARGINS AND DIVISION OF DRAWING SHEETS A5 Size

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Introduction (Contd.)

• Title blocks are provided at right bottom corner

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Layout of Structural Drawing

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Scale:

Plan:- 1:100, 1:50Elevation:- 1:5, 1:30Sections:- 1:50, 1:30, 1:25, 1:20,1:15,1:10

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SymbolsSymbols Relating to Cross-Sectional Shape and Size of Reinforcementφ plain round bar or diameter of plain round bar;� plain, square bar or side of plain square bar; # deformed bar (including square twisted bar) or nominal size (equivalent diameter or side) of the deformed bar .

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SymbolsSymbols Relating to Shape of the Bar along its LengthsAlt Alternate barBt Bent barB Bottom barmin Minimummax MaximumSt Straight barStp StirrupSp SpiralCt Column tieT Top bar

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Symbols Relating to Various Structural MembersBm or B BeamsCol Column(s)Fg Footing(s)GR GirdersJT Joints(s)LL Lintel(s)LB Lintel beam(s)Sb or S Slab(s)WL Longitudinal wallWx Cross wall

C Centre line

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Graphical Symbols

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Graphical Symbols Contd.

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Graphical Symbols Contd.

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Structural Lay-Out Drawing

• Positioning and orientation of columns• Positioning of beams• Spanning of slabs• Layout of stairs• Selecting proper type of footing

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Structural Lay-Out Drawing

• Two axes marked one side withalphabets and the other with numbers.

• Columns are marked at the intersection ofgrids

• Beams are marked using two parallel lines• Slabs are indicated either as one way or

two way

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Structural Lay-Out Drawing: Column & Footing

A

B

C

D

1 2 3 4

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Structural Lay-Out Drawing

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Structural Lay-Out Drawing

A

B

C

D

1 2 3 4

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Structural Lay-Out Drawing

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Summary• Introduction to structural Drawing• General Lay out Drawings• Procedure for drawing column and

foundation Lay-Out Drawings• Procedure for drawing beam Lay-out

Drawings• Case Study on Lay out drawings

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Dr. G.S.Suresh

Civil Engineering Department

The National Institute of Engineering

Mysore-570 008

Mob: 9342188467 Email: gss_nie@yahoo.com

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