Engineering and Contracting . les and two-thirds onthe rear axle, the axle spacing being 10 ft. For maximum stresses in the floorbeams,the sidewalks were assumed to be main longitudinal girders were also de- April 29. 1914. Engineering and Contracting 501 signed for the above car loading, to/;etlicrwith a load of 100 lbs. per square (< ot onthe sidewalks and the remainder of the road-way, the road roller also being considered inconnection with the car loading. A lead of200 lbs. per linear foot of each sidewalk was the curb stringers. The exposed edge of thecurb stringers are pr
Engineering and Contracting . les and two-thirds onthe rear axle, the axle spacing being 10 ft. For maximum stresses in the floorbeams,the sidewalks were assumed to be main longitudinal girders were also de- April 29. 1914. Engineering and Contracting 501 signed for the above car loading, to/;etlicrwith a load of 100 lbs. per square (< ot onthe sidewalks and the remainder of the road-way, the road roller also being considered inconnection with the car loading. A lead of200 lbs. per linear foot of each sidewalk was the curb stringers. The exposed edge of thecurb stringers are protected with Wainwrightcurb bars. Each pier consists of two plain concreteshafts 4 ft. square under the coping, with abatter of %-in. to 1 ft. on all sides. The appearance of a solid mass. Figure 3 showsa plan, elevation and cross-section of a typicalriver pier. A piece of 4-in. vitrified pipe wasembedded in the top of the coping over thehollow space, and G x 6-in. openings wereleft in the 15-in. walls near the low-water line. -9a)50-0--450-0 Note:- ^. ,i All for roiling, to the left of., clotted line was poured from positior) No^ ; of toner, that on ngtit and above was pourect, Na5 . Noh frorn^position 3 of tower_ ji Fig. 1. Elevation of Reinforced Concrete Viaduct at Fort Worth, Tex., Showing Type of Construction and Different Positions of Con-crete Spouting Tower. also used to provide for the weight of con-duits and pipes. Impact was allowed for ac- 100 cording to the formula I = S ; where L + 300I is the stress due to impact, S is the maxi-mum live load stress, and L is the loadedlength, in feet, that produces this maximumstress. This formula was used only for theelectric cars and uniform roadway produced by the road roller were in-creased 2-5 per cent in all cases. No additionwas made for impact to the stresses producedby the uniform sidewalk load. The live loadfor the piers was not increased for impact. The following allowable stress
Size: 2815px × 888px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicago, bookyear19
