structural drawing

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Design and drawing of RC Structures

CV61

Dr. G.S.Suresh

Civil Engineering Department

The National Institute of Engineering

Mysore-570 008

Mob: 9342188467Email: 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 Course

Part-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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Symbols Symbols Relating to Cross-Sectional Shape and Size of Reinforcement 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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Symbols Symbols 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 Members

Bm 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 with alphabets and the other with numbers.

• Columns are marked at the intersection of grids

• 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