Building Designer Engineer's Handbook

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HANDBOOKSCSC Fastrak

BUILDING DESIGNER

Structural steelwork analysis and design

.fastrak5950.com

Building Designer Documentation page 2

CSC (UK) Ltd Yeadon House New Street Pudsey Leeds LS28 8AQ Tel: (44) 113 239 3000 Fax: (44) 113 236 0546 Email: sales@cscworld.com support@cscworld.com Internet: www.cscworld.com CSC Inc 500 North Michigan Avenue, Suite 300, Chicago, IL 60611, USA Tel: 877 710 2053 Fax 312 321 6489 Email: sales@cscworld.com support@cscworld.com Internet: www.cscworld.com CSCWORLD (M) SDN BHD Suite B-12-5, Block B, Level 12, North Point Offices, Mid Valley City, No.1, Medan Syed Putra Utara, 59200 Kuala Lumpur, Malaysia Tel: (60) 3 2287 5970 Fax: (60) 3 2287 4950 Email: sales@cscworld.com support@cscasia.com.sg Internet: www.cscworld.com

Civil & Structural Computing (Asia) Pte Ltd 3 Raffles Place #07-01 Bharat Building Singapore 048617 Tel: (65) 6258 3700 Fax: (65) 6258 3721 Email: sales@cscworld.com support@cscasia.com.sg Internet: www.cscworld.com

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Disclaimer

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Disclaimer

Computer Services Consultants (UK) Limited does not accept any liability whatsoever for loss or damage arising from any errors which might be contained in the documentation, text or operation of the programs supplied. It shall be the responsibility of the customer (and not CSC) to check the documentation, text and operation of the programs supplied, to ensure that the person operating the programs or supervising their operation is suitably qualified and experienced, to ensure that program operation is carried out in accordance with the user manuals, at all times paying due regard to the specification and scope of the programs and to the CSC Software Licence Agreement.

Proprietary Rights

Computer Services Consultants (UK) Limited, hereinafter referred to as the OWNER, retains all proprietary rights with respect to this program package, consisting of all handbooks, drills, programs recorded on CD and all related materials. This program package has been provided pursuant to an agreement containing restrictions on its use. This publication is also protected by copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language, in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express written permission of the OWNER. This confidentiality of the proprietary information and trade secrets of the OWNER shall be construed in accordance with and enforced under the laws of the United Kingdom.Fastrak documentation: 2007 CSC (UK) Limited All rights reserved. Fastrak software: 2007 CSC (UK) Limited All rights reserved.

Trademarks

Fastrak5950 is a registered trademark of CSC (UK) Limited. TEDDS is a registered trademark of CSC (UK) Limited. 3D+ is a registered trademark of CSC (UK) Limited. The CSC logo is a registered trademark of CSC (UK) Limited. Microsoft and Windows are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Acrobat Reader Copyright 1987-2007 Adobe Systems Incorporated. All rights reserved. Adobe and Acrobat are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions.

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Disclaimer

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Table of Contents

Building Designer Documentation page 5

Engineers HandbooksBuilding Designer Engineers Handbook Chapter 1 Chapter 2Modelling and Analysis .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 18 18 18 18 19 19 19 19 20 20 20 21 21 22 22 22 23 23 23 23 25 26 26 27 27 27 27 28 28 28 28 29 29 29 29 30 30 31 31 32 33 34

Building Effective Models in Fastrak Building Designer .Grid Lines . . . . . . Attributes . . . . . . Loading Self Weight of Concrete Slabs . Loading applied to slabs . . . Staged modelling and design . . Simple Construction is still the best method . . . . . . Use Simple beams and columns where possible . NOTE Simple Columns and Sway Stability . .Design Simple Construction for Gravity Loads only

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. . . . . . Composite or simple beam . . . Setting the appropriate level of deflection checks Building Size and Orientation . . . Automatic NHF calculations . . . Number of design runs . . . . Number of load combinations . . . Stepped Design Process . . . . Results . . . . . . .

Diaphragm Action . Composite Beam Design

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Chapter 3 Chapter 4

Simple Wind Loading

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Overview of Construction Types .Member Beams and Member Columns . Section/Material Properties . . Analytical Properties (End Releases) . General Beams . . . . . Creating General Beams . . . Analytical Properties (End Releases) . Design Properties . . . . General Columns . . . . Creating General Columns . . . Analytical Properties (End Releases) . Design Properties . . . . Shear Walls . . . . . Creating Shear Walls. . . . Shear Wall Limitations . . . Analytical Properties . . . Transfer Shear Walls . . . . Getting the Analysis Model Right . . End Releases . . . . . Axial Releases . . . . . Member Orientations . . .

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Table of Contents

Supports and Base Fixity . Reviewing the Analysis Results

Practical considerations

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. 34 . 35 . 35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 36 37 38 39 39 39 40 41 41 41 41 42 42 42 45 48 49 49 49 50 50 51 51 53 53 53 53 54 55 55 55 56 56 56 59 59 60 60 61

Chapter 5

Overview of Analysis And Design ProceduresControlling the design procedure . . Why is it an iterative procedure? . . Controlling the iterative procedure . . Speeding up iterative analysis and design Limiting the iterations . . . . Initial Review of Analysis ResultsMaximum Nodal Deflections Sway Sensitivity . . . Loading Summary . . Review of Selected Sections . Review Analysis Results .

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Leaving the Start from beginning of order file on each pass option un-checked

3D Analysis Effects Interactive Design.

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Continuous Beam Example . Braces Carry Gravity Loads Example

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Chapter 6

Construction Levels, Floors and DiaphragmsIs it a Floor? . . . Diaphragm Modelling . Single diaphragm. . Slab items defined. . No diaphragm. . . . . . . . Taking slabs out of a diaphragm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 7

Rigid Framing and Gravity Loads .Backspan Beams . . General Points to Note . Pattern Loading . .Transfer Beams / Levels

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Chapter 8

Sway Resistance .

. . . Introduction. . . . . Using Bracing . . . . Using Steel Moment Resisting Frames Using Other Moment Resisting Frames Using Shear Walls . . . . . . . . . . .

Chapter 9

Connections Integration .. . General Limitations . Moment Connections . Introduction. . Simple Connections . . . . . .

Chapter 10

Issues and LimitationsFoundation loads . .

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Building Designer Documentation page 7

Vertical cross bracing .

. . . . . . Notional Horizontal Force Load Calculations .Foundation shear and vertical load Column axial load . . .

. . . . Gravity loads carried by braces not accounted for in NHF load calculations . Axial load in discontinuous columns used twice in NHF load calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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