The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 160
d upon which to construct exteriorforms of the subway. It was considered, owing to lapse of time which mustensue in constructing the monolithic tube within the waterproof enclosure,that standing work would probably often be lost if carried higher than4 feet, by sags due to weight of fabric and… … reinforced tube inside of it was anticipated. Fears in respecl to thesematters were fully justified, as illustrated, by the case of an 8-foot subway,which was so situated that the complete waterproof sheet had to be placedup to the roof connection, and the subway built within. Much…
Architecture · Building
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