STRUCTURAL DRAFTING - A PRACTICAL PRESENTATION OF DRAFTING AND DETAILING METHODS USED IN DRAWING UP SPECIFICATIONS FOR STRUCTURAL STEEL WORK

Oct 23, 2026

Practical guide to drafting and detailing methods for structural steel work, emphasizing accuracy, organization, and the engineer’s control through detailed drawings. Explains how steel members fit precisely by means of exact dimensions, hole locations, rivet counts, and coordinated checks to prevent errors and rework. Frames the subject through the example of a major fireproof skyscraper, highlighting the value of detail men, designers, checkers, and steel mill supervision. Includes an outline of drafting equipment, personnel, materials, stress sheets, allowances, shop bills, and detailed detailing topics.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages140

Reading Time5 h 53 min

AccessFree to download

Contents

Drafting room equipment and practice

Classification of drawings

Drafting—room personnel

Assignment of work

Records

Drafting materials

Stress sheet

Layout

Allowances for planing and cutting

Allowances for pin material

Allowances for bending

Shop bills

Detailing—General instructions

Lettering

Abbreviations

Dimension and material notation

Rivets and rivet spacing

Bolts, nuts, and washers

Tension members

Clearances

Detailing methods

Detailing of angles

Detailing of plates

Detailing of combinations of structural shapes

Detailing of beams

Detailing of roof trusses

Detailing of plate girder spans

Detailing of compression members

Detailing of built-up tension members

Facilitation of erection

# STRUCTURAL DRAFINGDUFOUR AMERICAW SCHO0LoCORRES OYDENCEHIC《 01LLIN0 Class T355 Book Ab Gopyright N? COPYRIGHT DEPOSIT. ## STRUCTURAL DRAFTING A PRACTICAL PRESENTATION OF DRAFTING AND DETAILINGMETHODS USED IN DRAWING UP SPECIFICATIONS FORSTRUCTURAL STEEL WORK By FRANK O.DUFOUR,C.E. ASSISTANT PROFESSOR OF STRUCTURAL ENGINEERING,UNIVERSITY OF ILLINOIS ILLUSTRATED ” CHICAGOAMERICAN SCHOOL OF CORRESPONDENCE T35 .A6 5 CoPYRIGHT,1912,1913 BYAMERICAN ScHOOL OF CoRRESPONDENCE° Copyrighted in Great BritainAll Rights Reserved 1.00 CCI.A350056 20 CONTENTS PAGE Drafting room equipment and practice……………………………………………………1 Classification of drawings…………………………………………………………………………1 Drafting—room personnel…………………………………………………………………………2 Assignment of work………………………………………………………………………………………3 Records……………………………………………………………………………………………………………………4 Drafting materials………………………………………………………………………………………………6 Stress sheet………………………………………………………………………………………………………………………………11 Layout………………………………………………………………………………………………………………………12 Allowances for planing and cutting……………………………!........15 Allowances for pin material…………………………………………………………………………15 Allowances for bending…………………………………………………………………………………………16 Shop bills…………………………………………………………………………………………………………………………17 Detailing—General instructions……………………………………………………………………………35 Lettering……………………………………………………………………………………………………………………………35 Abbreviations………………………………………………………………………………………………………………39 Dimension and material notation………………………………………………………………40 Rivets and rivet spacing…………………………………………………………………………………45 Bolts, nuts, and washers……………………………………………………………………………………54 Tension members………………………………………………………………………………………………57 Clearances…………………………………………………………………………………………………………………59 Detailing methods……………………………………………………………………………………………………………65 Detailing of angles………………………………………………………………………………………………65 Detailing of plates…………………………………………………………………………………………66 Detailing of combinations of structural shapes………………………………71 Detailing of beams…………………………………………………………………………………………………72 Detailing of roof trusses…………………………………………………………………………………81 Detailing of plate girder spans……………………………………………………………87 Detailing of compression members…………………………………………………………111 Detailing of built-up tension members…………………………………………∴.112 Facilitation of erection…………………………………………………………………………………………112 wOOLWORTH BUILDING,NEW YORK CITY One of thc Most Conspicuols Examplcs of Modern Fircproof Construetion.The View IsTaken from the Municipal Building ## INTRODUCTION ASTEEL skyscraper,like the fifty-five story Woolworth Build-ing in New York,is an architectural and engineering triumphand its erection is a never-ending source of interest and wonderto the spectator.Throngs of interested persons are alwaysstanding near while the giant derricks raise the columns andgirders aloft,swing them into place,and leave them to be fastenedsecurely by the men with white hot rivets and pneumatic hammers.And yet in all the confusion of noise and bustle of the workmen,the control of the engineer with the blue detail sheets before himis in evidence.Every piece of steel has a certain place in thatgreat structure and,although made miles from the scene andpossibly in different mills,every piece fits exactly down to therivet holes.The skeleton grows before your eyes,a potent illus-tration of the might of minds,of the value of accuracy of detailand organization of mechanical forces. q Do we not too often,in the midst of our wonder and apprecia-tion of this marvelous work of man,forget from whence all thisorder and system sprang?Do we not lose sight of the carefulcalculation of the size and thickness of every angle,plate,andgirder,the location of the holes,and the number and size of therivets to be used?When we think also of the checking and recheck-ing of all the calculated results in order to avoid mistakes in dimen-sions and in order to make sure that no structural member

FAQs

Why is accuracy in structural steel drafting emphasized throughout the book?

The text highlights that every steel piece has a precise place and must fit exactly, down to rivet holes. It stresses careful calculation and repeated checking to avoid dimensional mistakes and rework.

What roles are compared as critical for safely completing a building?

The introduction contrasts the spectator on a girder with key professionals behind the work. It names the designer, the detail man, the checker, and the steel mills’ superintendent as carrying the work accurately to a finish.

What core topics are covered in the drafting and detailing sections?

The contents list drafting room equipment, classification of drawings, personnel, records, drafting materials, stress sheets, layout, allowances, and shop bills. It also covers detailing instructions, lettering, abbreviations, notation, fasteners, member categories, and specific detailing of structural components.

Oct 23, 2026

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