. Electric railway journal . Luzerne Carhouse—Cross-Section of Bay for Light Repairs bers can be finished a few hours after being cast, thusavoiding the expensive process of cutting or the unsatis-factory practice of plastering. To take care of the ap-preciable expansion in a building of this size, two longi- Extreme fiber stresses on concrete in compression, 600lb. per square inch; shearing stresses in concrete, 75 square inch; concrete in direct compression, 500lb. per square inch; tensile stresses in steel, 16,000 611 Electric Ry- Journal Luzerne Carhouse—Part Plan, Showing Util
. Electric railway journal . Luzerne Carhouse—Cross-Section of Bay for Light Repairs bers can be finished a few hours after being cast, thusavoiding the expensive process of cutting or the unsatis-factory practice of plastering. To take care of the ap-preciable expansion in a building of this size, two longi- Extreme fiber stresses on concrete in compression, 600lb. per square inch; shearing stresses in concrete, 75 square inch; concrete in direct compression, 500lb. per square inch; tensile stresses in steel, 16,000 611 Electric Ry- Journal Luzerne Carhouse—Part Plan, Showing Utilities Buildings at the Rear of the Carhouse tudinal and two transverse expansion joints were joints extend entirely through the building. Themembers are arranged on rollers so that a movement ofseveral inches may be taken care of without difficulty. Two steel stiff-leg derricks, each mounted on a steeltower as illustrated, were used for erection. Three bays per square inch; shearing stresses in steel, 10,000 lb. persquare inch. The concrete for the members named was awet mixture of one bag Portland cement, 2 cu. ft. of coarsesand or gravel and 4 ft. of broken stone. Mass or monolithic concrete was used only for footingsand floors. The concrete floors consist of cinder con- June 28, 1913.] ELECTRJC RAILWAY JOURNAL 39
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