Design of Proposed Arch Rib Concrete Bridge for North Sheridan Road, Waukegan, Ill.
The book Design of Proposed Arch Rib Concrete Bridge for North Sheridan Road, Waukegan, Ill. was written by author Smith, S. M Here you can read free online of Design of Proposed Arch Rib Concrete Bridge for North Sheridan Road, Waukegan, Ill. book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Design of Proposed Arch Rib Concrete Bridge for North Sheridan Road, Waukegan, Ill. a good or bad book?
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75 Trials v/ere made graphically until the resultant of the thrust and the weight of the abutment plus the earth fill above came well within the middle third. The abutment was made 42' wide and built in three different heights as shown in one of the following blueprints. Concrete was figured .at 150^^ per cubic foot, and earth as 120# per cubic foot. Design of Retaini ng Y/all . The purpose of the retaining wall is to support the earth fill between the abutments and the end of the bridge. Where... the wall is the highest, it will rest directly on the masonry and fastened to it by enough rods to overcom.e the effect of sliding. The top of the walls will be tied to- gether by means of rods extending through the floor slab, and the wall itself will be designed as a simple beam to take up the horizontal pressure of the earth. One linear foot of wall will be considered only, and a thiclcness of 30" will be assumed for trial thickness. As the top of the wall is tied, there will be no advantage in making the wall thicker at the bottom than at the top.
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