The complex rubbermetal composite structure of the orf expansion joints facilitates in accommodating the displacement and rotation of the concrete structures relative to each other in all. Learning from other states options for bridge expansion joints what was the need. Design of spool type joints to over 10 foot 120 or 3m i. This standard supersedes bd 3388 and covers the requirements for the use of expansion joints in highway bridge decks. The joints installed within the traffic lane of the bridge were considered. This type of expansion joints are used in large span steel bridges. The following general criteria apply to all expansion joints in bridges. A wide variety of bridge expansion joints options are available to you, such as steel, stainless steel, and carbon steel.
In addition to the general requirements for modular expansion joints, the deck joint assembly working drawings shall also bear the seal and signature of a designchecking engineer. Thomas gionet, graduate research assistant prepared for the new england transportation consortium. Elastomeric expansion joints 1 definition and function 1. Emseals bridge solutions have been repeatedly recognized nationally by many certifying organizations for innovation and design. An expansion joint or movement joint is an assembly designed to hold parts together while safely absorbing temperatureinduced expansion and contraction of building materials, and vibration, or to allow movement due to ground settlement or seismic activity. Search or browse our list of expansion joints manufacturers companies by category or location. Types of joints open allow water and debris to pass through closed created to block debris and water classified into categories based on movement range. Bja standard for mechanical expansion joints foreword this standard is one of a series of standards that cover the range of proprietary bridge expansion joints that are approved and installed in the united kingdom. This structural opening bisects not only the facade but the structural building elements as well. Expansion and contraction caused by temperature changes, shortening and creep caused by prestressing, deflections caused by live loads, and longitudinal forces. Advantage and disadvantage bridge expansion joint, bridge. Several state highway agencies sha have joints that they believe are superior performers to other types and have prepared guidance documents for their use.
The teeth are also wider compared to the fingers of the finger plate type expansion joints. Expansion joints september 2008 195 where practical and where additional protection for bearing assemblies and hinges is warranted, a secondary sealing system may. Standard practice for washing and cleaning concrete bridge. Ejma expansion joint manufacturers association analysis done on all expansion joints. Available in virtually any alloy and in single or multiple plies. Brian swanson, graduate research assistant, and mr. Download 35 bridge expansion joint stock photos for free or amazingly low rates. An expansion joint is a main member used in the construction of a bridge as well as the bridge support, and it can make a smooth movement of bridge slab caused by the temperature change, drying shrinkage, live load etc. Pdf modular bridge expansion joint specifications and load. Infrastructure preservation through watertight bridge expansion joints. Bridge deck joints and deck joint seals introduction although often thought of as static, highway structures are continually in a state of motion.
In building construction, an expansion joint is a midstructure separation designed to relieve stress on building materials caused by building movement induced by. This chapter presents ndot criteria for the design and selection of expansion joints in bridges. Then the bearings, bearing seat, and the area surrounding the bearings are sprayed. Allow bridge to expand and contract w temperature changes. Find details of companies offering bridge expansion joints at best price. Crete siliconeseal system is a high performance expansion joint system utilizing a dynamic twopart sealant between impact absorbing elastomeric concrete headers. The bridge expansion joint range of products caters for movements from 20mm through to 330mm and includes the brit. Expansion joint replacement is also available if the current product has failed or needs to be replaced.
Therefore, it is extremely sensitive to errors of various natures, which lead to the development of anomalies that. Expansion joints accommodate the expansion and contraction of bridges due to temperature variations. Expansion joints september 2008 195 where practical and where additional protection for bearing assemblies and hinges is warranted, a secondary sealing system may be provided below the expansion joint assembly. Stress relief pipe stress caused by thermal expansion contraction or foundation settlement can be handled by expansion joints. The finger plates are supported on one side, the tips remaining free as cantilevers and as such the thickness of the finger plate is more. Augusta 3rd bridge both these joints are located at abutments. This system can be manufactured according request of customer by using extrusion profiles or welded profiles. Experience has already demonstrated that the percentage of costs related with expansion joints, in most bridges where. Arfen steel bridge expansion joints are consisting of a waterproof rubber gasket and steel profiles to absorbe movements.
The general categories we supply can be described by the materials used and the type of movement provided. Dec 24, 2018 an expansion joint is used to allow the heatinduced expansion and reduction that takes place during different weather conditions. While minnesotas bridges traditionally utilized parapettype abutments, where the beams rest on bearings that. Eliminating expansion joints in bridges aspire bridge. Garlock expansion joints contents expansion joint styles. The kentucky transportation cabinet kytc has both open and closed bridge expansion joints and associated details that are problematic.
Expansion joints september 2008 191 chapter 19 expansion joints lrfd article 14. The performance of bridge joints is affected by temperature and traffic volume, together with the nature of the traffic. Great advances have been made in modular expansion joint technology since this most versatile type of joint was invented forty years ago, and the use of such joints, especially on very large. Goodco ztech expansion joints are customdesigned and fabricated to accommodate the structural movements of highway bridges, multilevel parking garages as well as various civil engineering works such as dams, airports and others. Products bridge expansion joints we manufacture and supply bridge expansion joints across canada and are listed on the designated sources of material by the ministry of transportation ontario m.
Bridge joint locations bridge bridge joint another bridge joint, way down here. Pdf modular bridge expansion joint specifications and. Goodco ztech expansion joints prevent structural damage. Flexible connector an elastomeric expansion joint is a specially designed section of pipe inserted within a rigid piping system to provide flexibility. Bja028 current practice sheet may 2003 current practice sheet introduction an expansion joint can be defined as a device to support the surfacing, or to provide a running surface, across the expansion gap, ie the area between adjacent spans of a bridge deck or the bridge deck and abutment. The deck joint assembly manufacturer shall submit the approved product drawings along with the working drawings. Bridge expansion joint stock photos download 35 royalty. The expansion joints were characterised based on their type, and age of the bridge. Learning from other states options for bridge expansion joints. Bearings and expansion joints chapter 9 wsdot bridge design manual m 2350. Apr 10, 2017 expansion joint cad details library for sealants and expansion joints from emseal in autocad. If bearing under joints stop working the superstructure moves stress to o. The required standard plans for bridge construction for projects are included in the structures component of the contract plan set. An expansion joint represents a discontinuity point in a road pavement.
A working group was set up by the county surveyors society css and transport research laboratory trl working party on highway research to try to improve the consistency of performance and value for money of expansion joints, reducing the incidence of premature failure and leakage. While accommodating movement, joint materials used to fill wall expansion joints must restore the intended functions of the facade and structural building elements. Recent changes in minnesota bridge construction have created a challenge for maintaining expansion joints. Minimize number when conditions permit, the bridge engineer should eliminate expansion joints and tie the approach slab into the superstructure.
Expansion joints manufacturers companies in the united states. We offer many styles for different applications of metal expansion joints for piping systems. View underneath max wilder bridge showing result of leaky joint seal. Fancy new bridge this joint is located at an abutment. Orf bridge solution offers a variety of expansion joints to suit a wide range of movement and gaps between bridge decks. Bridge expansion joint locations bridge joint crappy old bridge, being torn down. The flexible header of wabocrete ii coupled with wabosiliconeseal make it an ideal expansion joint system for the new construction or repair of existing joints. State of the practice southeast bridge preservation partnership april 14, 2011 raleigh, nc presented by michael c. Expansion joints for use in highway bridge decks summary. Many state highway agencies allow eliminating expansions joints for bridges that are less than 350 ft long with steel eliminating expansion joints in bridges by dr. The expansion joints are flushed out from the top of the deck or side of the bridge depending on the type of expansion joint and accessibility of the side of the bridge to remove debris. When joints leak on steel, it doesnt take long for salt water to corrode load carrying members.
666 828 163 463 258 62 179 553 121 1402 249 972 565 182 835 591 674 315 1010 1580 821 611 1293 604 556 574 543 956 393 513 457 759 755 761 827 655 1175 838 1350 486 668 1386 876