Viatechnik is a fastgrowing technology company that offers a range of virtual design and construction and software development services to owners, architects, engineers, and contractors. One lane of the nearly centuryold draw bridge opened in each. Accelerated bridge construction on the fast track to success rob burak, p. During this phase, which may continue into early next week, the public may see the bridge in the up or down position, or moving between these two positions. Woodrow wilson bridge fort washington, maryland atlas obscura. The slidein bridge construction sibc cost estimation guidelines. Bascule bridge definition of bascule bridge by merriam. Bridge construction overview this chapter provides an introduction to bridge construction inspection. How accelerated bridge construction works on the pa. The length of the bridge decks on this project totals 16,794 ft over i75 and ramp h. A bascule bridge commonly referred to as a drawbridge is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic.
Also in london was the belmouth passage temporary bridge designed to carry service traffic over the dockland passage. This new reference work addresses both the maintenance and the upkeep of existing movable bridges, as well as the complete design of new movable bridges. The material chosen for the bridge was first chosen as structural steel and then stainless steel and the results for both were compared. Bascule bridges have counterbalance weights positioned either in the deck or in overhead balance frames as shown to assist in the lifting operation of the deck. Bridge construction terminology bridge terminology. On the playground seesaw, the pivot point trunnion is in the middle so the weights on either side of the pivot point are equal.
Bascule bridge definition of bascule bridge by merriamwebster. Sep 14, 2017 see how the pa turnpike is replacing bridges in just 55 hours. The river top was 17 feet below the rail tops on one side and of the bridge and 16 feet below on the other. Comprehensive coverage is provided on engineering design and actual construction technology used in building all major types of bridges, including all structural issues and relevant mechanical and electrical systems used to make. This is achieved by ensuring that the bridge is balanced. Woodrow wilson bridge fort washington, maryland atlas.
The bridge could open to allow taller boats to pass. The morrison bridge is a chicagotype bascule bridge and the burnside bridge is a strausstype bascule bridge. The basic principal of a bascule bridge is that it needs sufficient power to lift the open span in a vertical direction. Bascule definition and meaning collins english dictionary. It originated in medieval europe, probably normandy, as a defensive feature of castles and towns. This type of construction allows forms and workers to operate efficiently at grade, instead of being suspended above the ground and traffic. The broadway bridge is an important example of a ralltype, doubleleaf bascule bridge. This bridge design excel sheet consists of 11 individual excel sheets which are supported with the most recent codes like aci, aashto lrfd, etc. According to a plaque on the site, it was built by the bethlehem steel bridge corporation. Mar 15, 2011 model railroader is the worlds largest magazine on model trains and model railroad layouts.
The type of movable bridge that most people think of as a draw bridge is similar to those that spanned medieval castle moats. A big counterweight is applied to offset to weight of the raised leaf. Posts about bascule bridge written by movablebridge. This alternative allows vtrans to address the deterioration of the twin leaf bascule spans structural steel, mechanical, and electrical components. The bridge shown consists of a moveable deck cd, tie rods ad, a balance frame including counterweights abe, and a portal support frame. The operation of a trunnion bascule bridge is modeled after a balanced horizontal seesaw. Construction of interchange on the maryland side in 2007. The article in the specifications and the section in the construction manual are listed directly. Bascule bridges have spans that pivot upward utilizing gears, motors and counterweights. The bascule spans will be replaced during the winter months and then the next construction season the bridge structure rehabilitation would be completed.
Most of the design for this bridge came from spending lots of time studying the photos of the fec strauss bascule bridge on the site mentioned above. Unlike vertical lift bridges, when opened, there is no vertical obstacle to river traffic. June 1,191 3 iherebyreconumendthatthethesispreparedundermy supervisionbyluanchangentitleddesignofatrunion. The bridge is a single leaf overhead counterweight frame type, spanning 20 meters, carrying a roadway and a sidewalk. When a bascule bridge is in need of repair or rehabilitation, one of the most critical issues is that of maintaining traffic during the work period. Bridge 4 is a twinleaf, chicagotype bascule bridge, with its counterweights located under the road deck. Accelerated bridge construction using precast piers eric yermack, p. You must there are over 200,000 words in our free online dictionary, but you are looking for one thats only in the merriamwebster unabridged dictionary. That means a weight called counterweight equivalent to the weight of the opening span is fixed to the bridge deck but at the opposite side of the rotating arm. Construction of victorias new bascule bridge begins want full article access.
For a bridge, the pivot point is moved to one side and the seesaw is rebalanced. Actually, there is not much difference between two types of companies and usually one can do others as well. The machinery for opening the bridge is located above the structure. Bascule bridge plans model railroader magazine model. The name comes from the french term for balance scale, which employs the same principle bascule bridges are the most common type of. This design is known as a doubleleaf bascule bridge figure 1. Accelerated bridge construction using precast piers. Design and analysis of a bascule bridge using finite element. The michigan avenue bridge is a fixed trunnion bascule bridge, a type known throughout the world as a chicagotype bascule bridge.
These two bascule type bridges have a very clean, uncluttered look to them because the counterweights and operating machinery are located out of sight in the piers supporting the bridge. Devendra gupta riddhi siddhi high level bridge by jaipur development authority jda, ram kishor vyas bhawan, indra circle, jawaharlal nehru marg, jaipur 302004 rajasthan, india submitted by. Canadian precastprestressed concrete institute rita seraderian, p. Jun 03, 20 many people confuse the fact that bridge construction companies are same as the normal road construction companies. Technically called bascule bridges from the french word for seesaw, they may open at one end and lift to one side single leaf or open in the middle and lift to both sides double leaf. A bascule bridge means a movable span leaf that revolves on a horizontal hinged axis trunnion to hoist one end in vertical direction. For wider channels, two leaves are used, one on each side of the channel. Traditionally, steel construction has been most commonly used for very long spans, however, concrete arches are now also being used for big bridges. However, bridge construction requires some specialized personnel and machines to complete the process of bridge making. Webster to main bascule bridge north tonawanda history.
Cass haywards first movable bridge project was for the design of the steelyard cut dutch drawbridge in st. The original bascule bridge could open two spans to allow for the passage of. See how the pa turnpike is replacing bridges in just 55 hours. 1 bridge technicians duties 2 basic bridge terms 3 bridge plans 4 construction controls and layout technician duties the general duties of a bridge technician are essentially the same as for. Feb 05, 2016 detroit news the fort street bridge has reopened about a year after work on the span was originally scheduled for completion. Accelerated bridge construction on the fast track to success. Contractors that are equipped to move fill material will take advantage of this method. Route 6erie avenue over the black river at the city of lorains port to lake erie. Viatechnik virtual reality construction design, bim. Pcl, toebe is replacing all pot bearings on the piers and expansion joints of the zilwaukee bridge in saginaw county, mi. Mahavir prasad meena ce10022 department of civil engineering iit kharagpur. Types of movable bridges and their construction details. Viatechnik was selected as the massachusetts port authoritys bim consultant. A bascule bridge also referred to as a drawbridge or a lifting bridge is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic.
Millennium bridge at dusk, viewed from gateshead over the river tyne to newcastle upon tyne brian lawrencegetty images. In our constant efforts to bring seamless, uninterrupted travel to our motorists the pa turnpike is. Model railroader is the worlds largest magazine on model trains and model railroad layouts. Route 6 erie avenue charles berry bascule bridge will move into the next phase on thursday, november when the contractor begins testing the bridge operations. This way the study on the stresses, stra conducted successfully between the two materials. April 1996 preface this manual has been prepared to assist the project supervisor in the supervision of bridge construction projects. Capital program management construction scheduling. The new north hero bascule bridge heavy movable structures. Many people confuse the fact that bridge construction companies are same as the normal road construction companies. Bridge technicians employed by indot are assigned to a. All the other bascule bridges on the welland canal are singleleaf ralltype bridges, with counterweights suspended on a frame structure over the roadway. The design and construction of a new bascule bridge over the oswega river at phoenix is described. Construction of victorias new bascule bridge begins.
New bridge construction handbook the purpose of this handbook is to help the field inspectors find the information they need by listing the different resource documents for a particular subject. View of a lift bridge on the erie canal being raised to allow a boat to pass in tonawanda. Bascule bridge definition is a counterpoised or balanced drawbridge. Standard specifications for bridge construction section 1, excavation march 20 1 1 1. Detroit news the fort street bridge has reopened about a year after work on the span was originally scheduled for completion. Aug 10, 2016 training report on bridge construction 1. When the leaves are in the lowered position, they meet at the center of the channel.
This manual is intended to better communicate the intent of the plans, standard specifications for state road and bridge construction, special provisions, and project special. There is a single raising leaf or two which assemble in the center when closed. Precastprestressed concrete institute northeast region paper prepared for presentation at the bridges adjusting to new realities a session of the 2010 annual conference of the. Kansas department of transportation bridge construction manual version 1011 kdot bridge section 1.
By magnifying the photos you can get a pretty good impression of how the bridge was built. Bridge construction manual guidelines to project supervisors bridge engineering page 2 revision. A bascule bridge is a drawbridge hinged with a counterweight that continuously balances the leaf or long arm that crosses the river. How draw bridge is made material, history, used, structure. Together we are working with massport to strengthen their current. Fort street bascule bridge operational view youtube.
Given below the detail specifications of these spreadsheets. In a bascule bridge, one or two pieces of the bridge deck, known as leaves, swing up to provide clearance for boat traffic passing underneath. Dictionary grammar blog school scrabble thesaurus translator quiz more resources more from collins. Its intent is to establish a basis for the relationship with the contractor and. During this phase, which may continue into early next week, the public may see the bridge in the up or down position, or. Slidein bridge construction federal highway administration. In our constant efforts to bring seamless, uninterrupted travel to our motorists the pa turnpi. More than 250,000 words that arent in our free dictionary. You must there are over 200,000 words in our free online dictionary, but you are looking for one thats only in the merriamwebster unabridged dictionary start your free trial today and get unlimited access to americas largest dictionary, with. Pdf the whole life cost of a bridge consists of the total investment throughout the life of the bridge.