The San Francisco earthquake and fire; a brief history of the disaster; a presentation of facts and resulting phenomena, with special reference to the efficiency of building materials, lessons of the disaster . MP^RCHANTS EXCHANGE BUILDING. Typical view showing the condition of the wire lath and plaster ceilingsand partitions. The safe in the foreground fell over on its side without doing any damage to the Roebling concrete vault on the right, enclosed by a solid wire lath and plaster partition i thick, preserved its contents. The contentsof a number of other similar vaults in this b
The San Francisco earthquake and fire; a brief history of the disaster; a presentation of facts and resulting phenomena, with special reference to the efficiency of building materials, lessons of the disaster . MP^RCHANTS EXCHANGE BUILDING. Typical view showing the condition of the wire lath and plaster ceilingsand partitions. The safe in the foreground fell over on its side without doing any damage to the Roebling concrete vault on the right, enclosed by a solid wire lath and plaster partition i thick, preserved its contents. The contentsof a number of other similar vaults in this building were totally destroyed. 163. »t-^:i-:W*5^**;- j--^^**^! MERCHANTS EXCHANGE BUILDING. Showing a Roebling vault, with double stetl doors, which preserved itscontents perfectly. The walls and top are of solid concrete: the studs of 2 x J/ flat steel are sjiaced 10 on centres. Roebling1 solid rod stiffened wire lath is applied to both sides of the studs, and the space between the wire surfaces is filled solidwith cinder concrete. The plaster is then applied to both sides, making a total thickness of 4 inches. The handles of thecombination lock of this vault fused, and it was impossible to open the door. The hole through the wall of the vault in thecentre foreground was made in order to get at the contents, and shows the details of the construction. There were no cracksin the walls or top of this vault. 164
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectear, booksubjectfires
