Timber Bridge

Timber Bridge

 

a bridge with wooden spans and supports. Timber bridges may also have concrete supports. The art of building timber bridges was highly developed in ancient Rome. In the chronicles of the llth and 12th centuries there is frequent mention of bridges built in Russia across large rivers. There are different timber-bridge systems in the USSR. It is practical to build them in regions rich in timber. Where the spans are 6-8 m, the simplest beam systems are used, while spans of 10-18 m require composite or bonded girders or a bracing system. Spans from 16 to 50 m are covered by span structures with trusses. Timber bridges are usually made from the wood of coniferous varieties (pine, fir, and larch), with important parts made of oak. Timber bridges are treated with antiseptics to prevent rotting.

References in periodicals archive ?
Therefore, the WIT Program's technology transfer process can be viewed as a communication network system that includes three major subgroups: 1) technology developers who develop new timber bridge technology; 2) end users (loggers) who may potentially use the technology; and 3) transfer intermediaries (channels) who bridge these groups and provide necessary efforts for a smooth link between technologies and applications, and sometimes can speed up the transfer processes (Fig.
Forest Service Timber Bridge Grant Program, and was subject to the review and approvals of the Maryland State Highway Administration and the Federal Highway Administration.
The student chapter of the Forest Products Society at Virginia Tech's College of Natural Resources took top place in the eighth national timber bridge design competition.
Tenders are invited for approx 1,300~ of siphon piping installation, removal of concrete dam, spillway, and concretepowerhouse foundation, installation of timber substructure pilings for a 3-span, 70~ long timber bridge, furnishing and installing a 1-span 32~ long timber bridge, and associated stream restoration.
Tenders are invited for clearing and grubbing, drainage structures, class ii base course, lime treatment, grading, removal of timber bridge, precast concrete piles, precast prestressed girder span bridge, asphalt concrete and related work.
The contract package includes the planning and construction of a steel / timber bridge in accordance with the contract documents of the contractor.
Initiated by Bridge Management System, the CR 514 (Amwell Road) Bridge over D&R Canal is a four -span timber bridge, originally constructed in 1953.
The contract package includes the construction of a steel / timber bridge according to plan documents.
Timber bridge with failing abutments at the end of its useful lifeRemove timber bridge structure and replace with a concrete structure
Existing timber bridge is in the last stages of its useful life and unsuitable for rehabilitation.
Tenders are invited for the project consists of replacement of the existing bridge superstructure with a prefabricated timber bridge superstructure and associated roadway reconstruction.
Contract awarded for Mackay Regional Council is seeking to undertake the removal of an existing timber bridge structure and construction of a Fishing Pier.