Analysis of Stresses, Proportioning the Material, Details of Construction, Details, Bills, and Estimates, Streets and Highways, PavingInternational Textbook Company, 1903 - Bridges |
Common terms and phrases
amount asphalt batten plates beam bending moment bending stress blocks cent center of gravity center to center channels chords and end compression members compressive stress condition construction cover-plate dead load stresses diagonal diameter dimensions distance eccentricity end post equal eye-bars feet floor-beam formula given grade gravel hanger Hence Highway Bridge horizontal joists lattice bars less lineal foot live load stress load line load unit stress lower chord material maximum stress Mechanical Drawing Plate medium steel metal number of rivets obtained panel length panel load pavement paving pin hole pin plates pitch polygon for joint portal portion position pounds per square practice Pratt truss radius of gyration resist rivet holes rivets required road roadway sand sectional area shear shoe shown in Fig square inch streets stress diagram stress sheet surface tensile stress thickness truss upper chord usually web-plate weight per foot width wrought iron
Popular passages
Page 946 - At the ends of compression members the pitch shall not exceed four diameters of the rivet, for a length equal to twice the width of the member.
Page 1159 - ... with the asphaltic cement at the required temperature, and in the proper proportions in a suitable apparatus so as to effect a thoroughly homogeneous mixture.
Page 859 - Plate girders shall be proportioned upon the supposition that the bending or chord strains are resisted entirely by the upper and lower flanges, and that the shearing or web strains are resisted entirely by the web plate; no part of the web plate shall be estimated as flange area. The distance between centers of gravity of the flange areas will be considered as the effective depth of all girders.
Page 898 - The pitch of rivets at the ends of built compression members shall not exceed four diameters of the rivets for a length equal to 1^ times the maximum width of the member. (d) Two-Angle Members. In tension members composed of two angles, a pitch of 3'-6...
Page 816 - The attachment of the lateral system to the chords shall be thoroughly efficient. If connected to suspended floor beams the latter shall be stayed against all motion.
Page 1014 - ... running between planed surfaces. The rollers shall not be less than 2 inches diameter, and shall be so proportioned that the pressure per lineal inch of rollers shall...
Page 889 - ... the distance from the center of gravity of the section to the upper side of the cover-plate.
Page 897 - Preference will be had for such details as shall be most accessible for inspection, cleaning and painting; no closed sections will be allowed.
Page 899 - The diameter of the pin shall not be less than twothirds the largest dimension of any tension member attached to it. The several members attaching to the pin shall be so packed as to produce the least bending moment upon the pin, and all vacant spaces must be filled with wrought-iron filling rings.
Page 994 - When this thread is used, the diameter </n of the bolt at root of thread, or the approximate diameter of rough hole in nut before cutting the thread, is given by the formula in which d is the original diameter of the bolt and / is the pitch of the thread. (The pitch of the thread is equal to one divided by the number of threads per inch.) The standard proportions for finished nuts recommended by the Franklin Institute are as follows: Thickness / of nut: Short diameter 5 of square or hexagonal nut:...