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Details of highway bridges (1906)

Frost, John Henry · leaf 50

An illustration from Details of highway bridges, 1906, leaf 50
hnson Framed Structures, p-320). In the form of portal Illustrated in Pig. 36, the un-supported distance from the lower end of the end post to the con-nection of C-B is shorter than in most of the other types of por-tals. This is a strong point in its favor, as the above connectiondecreases the… … ^Oovl portal that is commonly used. It is sometimes used without the kneebrace, but it should not be, as theknee brace reduces the bending mo-ment in the post. The angles areused here with their legs up. Thereis no advantage in this; and thelegs should be turned down in orderthat dirt and water may…

Bridges · Theses

Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.

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