. The Street railway journal . erminal take place. Heavy repair worktakes place on the ground floor of the original shop andcar house, an elevator being provided for the handling oftrucks and motors. The new yard is entirely in the open air, and the flooris level, the base of rail being at a grade 23 ft. 11 the surface car-house floor. The parallel tracks inthe yard are spaced 12 ft. apart on centers, and have acar capacity varying from twelve to seven cars each, accord-ing to length. The total area of the reinforced concretesection of the yard is 47,000 sq. ft., and about 1,380,000
. The Street railway journal . erminal take place. Heavy repair worktakes place on the ground floor of the original shop andcar house, an elevator being provided for the handling oftrucks and motors. The new yard is entirely in the open air, and the flooris level, the base of rail being at a grade 23 ft. 11 the surface car-house floor. The parallel tracks inthe yard are spaced 12 ft. apart on centers, and have acar capacity varying from twelve to seven cars each, accord-ing to length. The total area of the reinforced concretesection of the yard is 47,000 sq. ft., and about 1,380,000 steel were used in the construction. Typical details ofthe floor construction and a generabJayout of the floor areillustrated herewith. The-floor construction in general consists of a support-ing slab of rock concrete 4 ins. thick, reinforced with steel,on which is laid a four-ply waterproof seal over theentire area, and flashed up all around the floor drains, mak-ing the work perfectly water tight. On top of the water-. Street It«i! Journal FIG. 1.—GENERAL PLAN OF SULLIVAN SQUARE STORAGEYARD, BOSTON proof seal is laid cinder concrete having a minimum thick-ness of 2 ins. at the low point at drains, and a thickness of3^4 ins. at the summit. On top of the cinder concrete isa granolithic finish not less than 1 in. thick at any point,and varying in thickness under track stringers from 1 the summit to 2^/2 ins. at the low point. The granolithicsurface is jointed to form panels. The under surface ofthe floor isdevel, the finished top of the floor being laid tosuccessive grades, to shed water from the summit to thelow point, or line of floor drains. All steel members forming the floor system, with the ex-ception of plate girders, are protected with cinder concreteextending to the line of floor slabs. The soffits of beamsare wrapped with metal fabric and plastered i^A ins. thick. November 23, 1907. J STREET RAILWAY JOURNAL 1029
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
