Pdf efficient prestressed concretesteel composite girder. Medium girder bridge including bridge nsn 5420001723520 bridge erection set nsn 5420001723519 link reinforcement set nsn 54200191503 reporting errors and recommending improvements you can help improve this manual. Analysis and design of prestressed box girder bridge by irc. Use ltype abutments with expansion joints at the bridge ends where bridge length exceeds these values. Pdf the effect of span length and girder type on bridge costs. On this page, youll find links to the current selection of kits and accessories check back for more new. Girder bridges are the most natural and simplest form of bridging between two points. Jan 30, 2012 revolutionising the world of military bridging with the bailey once was a tall order, to pull it off a second time would be nothing short of amazing, but mexe did it with the medium girder bridge mgb a number of design drivers informed the requirement for the mgb, an increasing desire for air portability for. M1075 pls bear chassis bridge components dsb launcher mounted on pls. As a result of this study, the influence of both span length and type of girder on initial construction cost and maintenance whole life costs were assessed to support the decision makers and. Mgb was originally produced by fairey engineering ltd.
Medium girder bridge components the medium girder bridge mgb is lightweight, handbuilt, bridging equipment, it can be built in various configurations to provide a full range of bridging capability for use both in the forward battle area and in the communications zone. The bridge modules have been designed to be compact while being transported, yet easily deployable to their full width during bridge construction. Analysis and design of prestressed box girder bridge by. Speed of erection by few soldiers is its major characteristic. Chances are very high that today, a bridge engineer will learn how to design a bridge girder before any other bridge type.
Girder bridges have existed for millennia in a variety of forms depending on resources available. Versions and quantities of the medium girder bridge that were. This manual has been prepared to provide washington state department of transportation wsdot bridge design engineers with a guide to the design criteria, analysis methods, and detailing procedures for the preparation of highway bridge and structure construction plans, specifications, and estimates. The bridge beam is a compound section with a hardened and ground flat track 3.
Marine corps logistics bases to inventory and repalletize medium girder bridge mgb components into usable combat loads. Tableopcohtekts page ihtroductioit 1 historyofbridgeconstructloij. In operation since 1971, over 500 mgb systems have been acquired by 40 armed forces worldwide. It authorizes the requisitioning, issue, and disposition of spares, repair parts and special tools as indicated by the source, maintenance and recoverability smr codes. Army da administrative publications and forms by the army publishing directorate apd. The latest technologies high quality electronic pubs and forms view u. If you find any mistakes, or if you know of a way to improve these procedures, please let us know.
Unit and direct support maintenance repair parts and special tools list including depot maintenance repair parts for medium girder bridge system consisting of bridge set nsn 5420001723520 bridge erection set nsn 5420001723519 link reinforcement set nsn 54200191503 current as of 24 may 1993 reporting errors and recommending. The wfel medium girder bridge mgb is a classic example of high quality precision military engineering that has stood the test of time. Uk military bridging equipment medium girder bridge. Box girder bridges can have a considerable effect on the behavior of the bridge especially in the short to medium range of span such as 30m, 40m and 50m. Versions and quantities of the medium girder bridge that were in. Once a bridge type is selected, the designer then advances to the detailed design of the bridge. However, to satisfy operational requirements in afghanistan the system was retained for use solely in theatre. The washington state department of transportation wsdot makes these documents available on an as is basis. There are 26 suppliers who sells medium girder bridge on, mainly located in asia. The medium girder bridge mgb is a deck type two girder bridge system providing a 4 meter ft wide roadway. Seven precision components in light alloy dgfve 232b comprise the basic building units. A number of design drivers informed the requirement for the mgb, an increasing desire for.
The world leader in tactical military bridges medium girder bridge. The remaining 9 bridge sets are not currently part of the armys table of equipment. Medium and highfrequency vibration characteristics of a box. The medium girder bridge mgb is lightweight, handbuilt, bridging equipment, it can be built in various configurations to provide a full range of bridging capability for use both in the forward. Items for approach roadway, traffic control, environmental controls, and other bid items are not. The mgb is a two girder deck bridge in which the wide upper surface of the girders and the deck units laid between them form a 4. The medium girder bridge is modular, lightweight, and can be assembled in a short period of time. The medium girder bridge mgb is lightweight, handbuilt, bridging equipment, it can be built in various configurations to provide a full range of bridging capability. Semiintegral design is used for prestressed concrete girder bridges under 450 feet long and for posttensioned spliced concrete girder and castinplace posttensioned concrete box girder bridges under 400 feet long.
Tm5542021223p medium girder bridge system consisting of. The mgb ia a deck type, two girder bridge system, providing a 4 meter wide roadway that can be expeditiously assembled with minimal support. Dry support bridge dry support bridge dsb replaces medium girder bridge mgb 1 dsb system consist of 1 dsb launcher vehicle and 7 flatrack loads of bridge components. Classification for the medium girder bridge double story, double story without link reinforcement set, and double story with link. Feb 16, 2017 the mgb ia a deck type, two girder bridge system, providing a 4 meter wide roadway that can be expeditiously assembled with minimal support.
Scipublication p140 ref 1 gives a more extensive treatment of steel box girder design. The purpose of this example is to illustrate the use of the aashto lrfd bridge design for the design of a continuous two span steel i girder bridge. Between 2016 and 2018, state of pennsylvania through its major bridge replacement program used seven fspgbs. Since the vast majority of steel bridges designed today are steel girders made composite with concrete bridge decks, this module covers many detail issues that are encountered when designing a composite deck girder system. All warranties and representations of any kind with regard to said documents are disclaimed, including the implied warranties of merchantability and fitness for a particular use. To date several states have used the system that includes nebraska, massachusetts, montana, pennsylvania and michigan.
In this paper, the wfe method is applied to study the medium and highfrequency vibration characteristics of a box girder bridge. The oldest types of bridges are the beam, arch and swing bridges, and they are still built today. Tm5542021223p medium girder bridge system consisting. The medium girder bridge came into service in 1972 and was officially taken out of service in 2008. In our project we study the behavior of box girder bridges with respect to support reaction shear force. Media in category medium girder bridge the following 66 files are in this category, out of 66 total.
Fy 20 average % breakdown of overall project costs for. The behavior of box girder section for a general case of an eccentric. Support battalion, 3rd marine logistics group, iii marine expeditionary force construct a fivebay medium girder bridge in okinawa, japan. Distribution is authorized to us government agencies only to protect technical or operational information from automatic dissemination under the international exchange program or by other means. Bridge deployment light launching nose follow pictures 01 to 17, embed the following videos between the pictures like mentioned, to see how the medium girder bridge mgb in single storey configuration will be deployed with the light launching nose. The design process and corresponding calculations for steel i girders are the focus of this example, with particular emphasis placed on illustration of the optional moment redistribution procedures. The system includes piers, pontoons and ferries, all engineered for deployment with minimum manpower. And transportation equipment necessary to construct a medium girder bridge. The two most common types of modern steel girder bridge are plate and box. The components can be easily transported by bridging trucks, trailers, or by helicopter. Fy 20 average % breakdown of overall project costs for bridges system. Singlestory bridge length and classification for the medium girder bridge a16 table a16. Deputy program executive officer soldier fort belvoir.
Threespan continuous straight composite steel i girder bridge 5. Medium girder bridge project gutenberg selfpublishing. A new prestressed concretesteel composite pcsc girder system is developed to provide a viable alternative for steel and prestressed concrete igirders in bridges. Mar 06, 2019 folded steel plate girder bridge system fspgbs, is an economical steel bridge solution for short span bridges.
The mgb is constantly in use, and increasingly in demand, for both military and disaster relief operations. These types of bridges have been built by human beings since ancient times, with the initial design being much simpler than what we enjoy today. In addition, it is also a deck type, two girder bridging system capable of carrying loads up to and including main battle tanks mbt mgb was originally produced by fairey engineering ltd. Uk military bridging equipment medium girder bridge think. In addition, it is also a deck type, two girder bridging system capable of carrying loads up to and including main battle tanks mbt.
There are physical and economic limitations, and the bridge selection process often starts by considering a simple culvert, progressing to a slab or girder system, and ultimately evolving to truss and other more complex systems if and when needed. The span length and the site conditions often dictate the type of bridge that can be feasible at a given site. Irb stock was identified throughout the marine corps, and the process of. The medium girder bridge mgb is a lightweight, man portable bridge and can be assembled without help from heavy equipment. Design work for the medium girder bridge mgb started in the early sixties in response to a requirement for a hand built bridge that could carry a class 60 load over a 100 foot span and be used on battle group supply routes, not in the direct fire zone. Engineered bridge system with a growing selection of prototype bridge styles and accessories, the cornerstone engineered bridge system makes it easy to plan and build an authentic ho scale bridge from start to finish. Versions and quantities of the medium girder bridge that. Army field manual, fm 5212 on free shipping on qualified orders. The required passage may be for a road, a railway, pedestrians, a canal or a pipeline. Construction is completed after a reconnaissance report.
The use of girder as a natural bridging element is abundantly evident in nature, such as a fallen tree trunk over a stream or rock. The medium girder bridge mgb is a lightweight, man portable bridge and can be assembled. Organizational maintenance manual for medium girder bridge mgb and 55420272727, operator and organization maintenance manual link reinforcement set for the medium girder bridge mgb. Product director for army watercraft systems the product director for army watercraft systems pd awsis committed to. This manual supersedes tm 5542021212, dated 18 april 1985, including all changes headquarters, department of the. The obstacle to be crossed may be a river, a road, railway or a valley.
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