structural drawing
TRANSCRIPT
1
Design and drawing of RC Structures
CV61
Dr. G.S.Suresh
Civil Engineering Department
The National Institute of Engineering
Mysore-570 008
Mob: 9342188467Email: [email protected]
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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: [email protected]