AND ITS APPLICATION

IN THE

CONSTRUCTION OF BUILDINGS.

INCLUDING BEAMS AND GIRDERS IN FLOOR CONSTRUCTION, ROLLED IRON STRUTS, WROUGHT
`ND CAST-IRON COLUMNS, FIRE-PROOF COLUMNS, COLUMN CONNECTIONS, CAST-IRON LIN-
TELS, ROOF TRUSSES, STAIRWAYS, ELEVATOR ENCLOSURES, ORNAMENTal iron,
FLOOR LIGHTS AND SKYLIGHTS, VAULT LIGHTS, DOORS AND SHUtters,
WINDOW GUARDS AND GRILLES, ETC., ETC., WITH

SPECIFICATION OF IRONWORK.

AND SELECTED PAPERS IN RELATION TO IRONWORK, FROM A REVISION
OF THE PRESENT LAW BEFORE THE LEGISLATURE AFFECTING
PUBLIC INTERESTS IN THE CITY OF NEW YORK, IN SO FAR

AS THE SAME REGULATES THE CONSTRUCTION OF
BUILDINGS IN SAID CITY.

TABLES,

SELECTED EXPRESSLY FOR THIS WORK,

OF THE PROPERTIES OF BEAMS, CHANNELS, TEES AND ANGLES, USED AS BEAMS, STRUTS AND
COLUMNS, WEIGHTS OF IRON AND STEEL BARS, CAPACITY OF TANKS, AREAS OF CIRCles,
WEIGHTS OF CIRCULAR AND SQUARE CAST-IRON COLUMNS, WEIGHTS OF

SUBSTANCES, TABLES OF SQUARES, CUBES, ETC., Weights of

SHEET COPPER, BRASS AND IRON, ETC.

BY

WM. H. BIRKMIRE.

Fully Illustrated.

THIRD EDITION.

NEW YORK:

JOHN WILEY & SONS.

LONDON: CHAPMAN & HALL, LIMITED.

1903.

PREFACE.

THIS work is intended for Architects, Architectural Students and Builders.

The Author has been induced to prepare it because of his inability to find, among the many excellent works on the Mathematics of Construction, one that could be readily adapted as a reference book, treating of the various details of Iron and Steel as applied in the construction and finishing of buildings.

It was considered advisable to give but general information on the manufacture of Iron in the first chapter, to serve as an introduction to the chapters on Construction which immediately follow, and to give in these chapters such simple formulas and complete tables as would readily enable one to calculate the strength of beams, girders, etc., subject to a transverse strain, and of vertical supports subject to compression.

Desiring to give as much information as possible in relation to the construction and practical description of the miscellaneous details, especial attention has been given to their illustration.

NEW YORK, March, 1891.

WM. H. BIRKMIRE.