File:The Architect and engineer of California and the Pacific Coast (1917) (14595679987).jpg

Identifier: architectenginee5017sanf (find matches)
Title: The Architect & engineer of California and the Pacific Coast
Year: 1905 (1900s)
Authors:
Subjects: Architecture Architecture Architecture Building
Publisher: San Francisco, Calif. : Architect and Engineer Co
Contributing Library: San Francisco Public Library
Digitizing Sponsor: San Francisco Public Library

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rebeing removed. The remainder of the piles were or will be left permanentlyin ))osition inclosed in the center and side walls of the subway or outside ofits location. .\fter considerable negotiation, i)ermanent easement for the space occu-pie<l by the stibway structure, and temiiorary easement for space necessaryfor construction o))erations in the sub-basement, were granted by tiic Secre-tary of Treasury of the Inited States and several months work was re-(juired for the removal and reinstallation of machinery and plant that hadbeen installed in that jiart of the sub-basement needed by the contractor forct lUstmeti( in < iperations. .After the space was cleared, shallow excavations were iiiade in the sub-basement tloor and Id inches of the old concrete footings were removed oneach side of the contiiuioiis foundations and a continuous lattice girder 30 CONCRETED GIRDHKS SVITOKTING OLD FOUNDATION.CRETED COLUMNS UNDER THEM BEARING ONSECTIONAL IlLES 80 THE AKCHITllCr AND EXGlXlillR
Text Appearing After Image:
FERMANENT UNDERPINNING / ,, 11/:/:A .SC/JII.II TRACKS. TEMPORARY PILL tt(.W/^/i.s MARKED if TO BE REMOVED iiiclics (Iccj) and cx-tiiulini,- the fulllength of tlic build-ing was success-ively assembled imeach side of each uftwo rows of foot-ings and thoroughlyconnected to tlKiuby 14-inch squaresteel dowel piii>drilled into the oldfootings and hav-ing bearingsagainst the mem-bers of the latticegirders. These girdershave top and bot-tom ttanges eachmade with a 6x^-inch web and two6x6-inch angles in15-foot lengths,breaking joints anddiagonals consist-ing of 3x;^-inch flat bars with fi ^,s-inch bolts or rivets in each end. Allflange angles and diagonal pieces were shipped separately and assembledin place and secured by turned bolts or rivets at splices and connections. Similar lattice girders 13 inches deep were seated on the top flangesof the 30-inch girders on each side of each row of footings to which theywere also secured by steel dowels, and thus formed a lateral bracing sys-tem gi

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