![]() The Nelson Hollow Bridge in Doaktown, is constructed using a variation of the Town Truss. The timbers were pegged together and, as vehicles crossed the bridge their weight would automatically tighten the framework. The “Town Truss”, engineered by Ithiel Town of America, was shaped like a lattice. Multiple King Truss used to build the Colpitts Covered Bridge The Flume Ridge Bridge in Charlotte County and the Colpitts Bridge in Albert County are examples of this type of construction. The Multiple Kingpost design consists of one kingpost in the center with several right angle panels on each side of the center.Ī few of our provincial covered bridges were built using this design. The Multiple King Post Truss (Borrowed From Wiipedia) Note steel rods between the diamond shapes ![]() The steel rods were threaded at the end with nuts for tightening or loosening the tension in order to adjust any sagging of the bridge. In New Brunswick a second diagonal timber is added to the original single diagonal of the multiple kingpost and positioned in the opposite direction between the vertical rods. The superstructure is based on the multiple kingpost design but with heavy metal rods substituted for the vertical timbers. A design patented by William Howe of Massachusetts. Most of the covered bridges in New Brunswick were constructed using the “Howe Truss” design. The Howe Truss (Borrowed from Burr Truss Society) From these different styles, three types of trusses were used in New Brunswick. Knowing this we can build a bridge to span wider rivers.Įarly bridge builders tried different combinations of triangles and rectangles to form bridge trusses. ![]() And, by adding a series of triangles to a rectangle they will increase its rigidity and strength. Remember that a triangular structure has the capacity to withstand a considerable amount of pressure by evenly distributing weight to the three angles. Even though it is a tension member, rather than a compression member, they are commonly still called a post.” TRUSSES USED IN NEW BRUNSWICK A king post uses one central supporting post, whereas the queen post truss uses two. ![]() Wikipedia describes a King Post as: “… a central vertical post used in architectural or bridge designs, working in tension to support a beam below from a truss apex above…” The Queen Truss (Borrowed from Wikipedia)įor wider brooks or small rivers a triangle brace was added to each end of a rectangle forming the Queen Post Truss.įrom Wikipedia we learn that “ A queen post is a tension member in a truss that can span longer openings than a king post truss. The simplest truss used in constructing a bridge was a King Post Truss. The earliest were simple trusses adapted to bridge use but similar to those use in constructing a roof on a building The King Truss (Photo borrowed from Wikipedia) The essential element in building a longer bridge became a triangular structure known as a truss. But winter, followed by spring thaws caused havoc during crossings. Their traffic was mostly people on foot on horseback or by wagons pulled by horse or oxen.Īs roads were cut between the villages and towns, the problem of crossing large rivers was solved with the use of ‘ferries’. These early wooden bridges were constructed by private individuals or small communities to serve a specific purpose or need. Internal applications, then our B2B based Bizapedia Pro API™ might be the answer for you.The earliest wooden bridges were built by laying logs across a small stream and nailing boards across them. If you are looking for something more than a web based search utility and need to automate company and officer searches from within your WHAT'S INCLUDED IN THE ADVANCED SEARCH FORM? Utilize our advanced search form to filter the search results by Company Name, City, State, Postal Code, Filing Jurisdiction, Entity Type, Registered Agent,įile Number, Filing Status, and Business Category. While logged in and authenticated, you will not be asked to solve any complicated Recaptcha V2 challenges. In addition, all pages on Bizapedia will be served to you completely ad freeĪnd you will be granted access to view every profile in its entirety, even if the company chooses to hide the private information on their profile from the general public. Your entire office will be able to use your search subscription.
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