File:Armour engineer (1910) (14761650166).jpg

Identifier: armourengineer02armo (find matches)
Title: Armour engineer
Year: 1910 (1910s)
Authors: Armour Institute of Technology
Subjects:
Publisher: Chicago : Armour Institute of Technology
Contributing Library: Paul V. Galvin Library, Illinois Institute of Technology
Digitizing Sponsor: CARLI: Consortium of Academic and Research Libraries in Illinois

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ith 1-inch SIS & 2E boards. The side forms were braced to6x8-ineh timbers spiked to the projecting end of the sills. Thesides were made long enough for the longest slab, but wereused for the shorter slabs as well, and each side and end wasbuilt as a complete section and moved from place to place ona push car. It was found possible to use 3aeh section abouttwelve times, after which the sheeting was renewed. The oldlumber was used for backs of walls and abutments for sheetpiling. Pairs of posts in the side forms were directly opposite,and a 2xS-inch or 3x6-inch plank was spiked to their sidesabove the sheeting. These timbers stiffened the entire form,affording support for the reinforcing bars, carried the formsfor the back of the parapet, and sustained runways for thewheelbarrows. Pig. 13 shows these details. Blanks made upof lx8-inch SIS & 2E lumber and Ixl-inch cleats were nailedto the inside of the parapet form to produce the recessed pan-els in the face of the finished slab.
Text Appearing After Image:
pr56\fgj— e>-3 Fig. 13. Detati.s of Form Work for Slabs. The reinforcing bars and stirrups for the track slabs werecut to the proper length and bent to the required shapes at theyard. They were hauled to the forms on a push car and wiredinto place. The lower longitudinal bars were first laid onwooden blocks at the required distance from the top of thefloor; cross bars were next placed and wired to the longitu-dinal bars to act as spacers, and finally U stirrups werehooked under the longitudinal bars at the bottom and sup-ported by wire from the top cross pieces of the form. Afterall bars had been hung from the form in this manner, thesmall blocks were removed and the concrete was poured. The concrete was machine-mixed, a No. 1 Smith mixerbeing used on the job. The mixer discharged into a hopperwith a gate at the lower end, and each workman loaded hisown barrow by lifting this gate. The mixer was spotted eachday in the most convenient location relative to the slabs to be 34 THE AR

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