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Named for their shape, bowstring trusses were first used for arched truss bridges, often confused with tied-arch bridges. Thousands of bowstring trusses were used during World War II for holding up the curved roofs of aircraft hangars and other military buildings. Many variations exist in the arrangements of the members connecting the nodes of ...
American historic carpentry is the historic methods with which wooden buildings were built in what is now the United States since European settlement. A number of methods were used to form the wooden walls and the types of structural carpentry are often defined by the wall, floor, and roof construction such as log, timber framed, balloon framed ...
Ohio University became a space-grant institution in the 2010s. In Fall of 2012, Ohio University converted its academic calendar from quarters to semesters, after first having changed to quarters in 1967. [48] Through the contemporary period, the College Green has hosted numerous speeches from prominent voices.
Albert Fink (October 27, 1827 – April 3, 1897) was a German-born civil engineer who worked in the United States.He is best known for his railroad bridge designs, which helped revolutionize the use of iron for American railroad bridge construction.
One of the most popular designs was the Burr Truss, patented in 1817, which used an arch to bear the load, while the trusses kept the bridge rigid. Other designs included the King, Queen, Lattice, and Howe trusses. Early trusses were designed with only a rough understanding of the engineering dynamics at work. [9]
The earliest wooden truss connections consisted of mortise-and-tenon joints and were most likely crafted at the construction site with the posts. Since most early trusses were made from unseasoned posts, the subsequent shrinkage would create cracking at the mortise-and-tenon joints. Additionally, the mortise-and-tenon joints in older trusses ...
Advancing framing techniques for trusses made of dimensional lumber led to the gambrel roof, which was strong and free of heavy timbers. The Shawver truss—introduced in 1904 and invented by John L Shawver of Bellefontaine, Ohio—made of laminated straight boards, became a popular technique for framing gambrel roofs. This design required ...
Ohio University (Ohio or OU) is a public research university with its main campus in Athens, Ohio, United States. [9] The university was first conceived in the 1787 contract between the Congress of the Confederation and the Ohio Company of Associates, which set aside the College Lands to support a university, and subsequently chartered by the territorial legislature in 1802 and the Ohio ...