Infrastructure preservation through watertight bridge expansion joints. 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. All garlock expansion joint styles have been rigorously lab and fieldtested, and engineered to ensure long life and reliable service. Stress relief pipe stress caused by thermal expansion contraction or foundation settlement can be handled by expansion joints. This structural opening bisects not only the facade but the structural building elements as well. 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. 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. Brian swanson, graduate research assistant, and mr. Eliminating expansion joints in bridges aspire bridge. 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. Augusta 3rd bridge both these joints are located at abutments. Pdf modular bridge expansion joint specifications and.
Expansion and contraction caused by temperature changes, shortening and creep caused by prestressing, deflections caused by live loads, and longitudinal forces. 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. Metal expansion joints manufactured from 304, 316, and 321 stainless steel are the most common. Search or browse our list of expansion joints manufacturers companies by category or location. Pdf modular bridge expansion joint specifications and load. Standard practice for washing and cleaning concrete bridge.
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. Available in virtually any alloy and in single or multiple plies. Orf bridge solution offers a variety of expansion joints to suit a wide range of movement and gaps between bridge decks. This type of expansion joints are used in large span steel bridges. Learning from other states options for bridge expansion joints. Then the bearings, bearing seat, and the area surrounding the bearings are sprayed. The required standard plans for bridge construction for projects are included in the structures component of the contract plan set. Allow bridge to expand and contract w temperature changes. If bearing under joints stop working the superstructure moves stress to o. Apr 10, 2017 expansion joint cad details library for sealants and expansion joints from emseal in autocad. 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. Advantage and disadvantage bridge expansion joint, bridge. Expansion joints for use in highway bridge decks summary. Expansion joints manufacturers companies in the united states.
Goodco ztech expansion joints prevent structural damage. The joints installed within the traffic lane of the bridge were considered. 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. Ejma expansion joint manufacturers association analysis done on all expansion joints. Arfen steel bridge expansion joints are consisting of a waterproof rubber gasket and steel profiles to absorbe movements. 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. State of the practice southeast bridge preservation partnership april 14, 2011 raleigh, nc presented by michael c. Crete siliconeseal system is a high performance expansion joint system utilizing a dynamic twopart sealant between impact absorbing elastomeric concrete headers. Expansion joints september 2008 191 chapter 19 expansion joints lrfd article 14. While accommodating movement, joint materials used to fill wall expansion joints must restore the intended functions of the facade and structural building elements. Expansion joint bridge expansion, compression seal joints. The performance of bridge joints is affected by temperature and traffic volume, together with the nature of the traffic. Garlock expansion joints contents expansion joint styles. 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.
Experience has already demonstrated that the percentage of costs related with expansion joints, in most bridges where. Bridge expansion joint stock photos download 35 royalty. 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. Emseals bridge solutions have been repeatedly recognized nationally by many certifying organizations for innovation and design. Boltdown panel joints strip seal joints steel finger joints design example 2 25. A wide variety of bridge expansion joints options are available to you, such as steel, stainless steel, and carbon steel. The bridge expansion joint range of products caters for movements from 20mm through to 330mm and includes the brit. The kentucky transportation cabinet kytc has both open and closed bridge expansion joints and associated details that are problematic. In building construction, an expansion joint is a midstructure separation designed to relieve stress on building materials caused by building movement induced by. Bridge deck joints and deck joint seals introduction although often thought of as static, highway structures are continually in a state of motion.
Elastomeric expansion joints 1 definition and function 1. Bearings and expansion joints chapter 9 wsdot bridge design manual m 2350. Find details of companies offering bridge expansion joints at best price. This standard supersedes bd 3388 and covers the requirements for the use of expansion joints in highway bridge decks. We offer many styles for different applications of metal expansion joints for piping systems. Expansion joint replacement is also available if the current product has failed or needs to be replaced. An expansion joint represents a discontinuity point in a road pavement. Several state highway agencies sha have joints that they believe are superior performers to other types and have prepared guidance documents for their use. 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. Dec 24, 2018 an expansion joint is used to allow the heatinduced expansion and reduction that takes place during different weather conditions. The deck joint assembly manufacturer shall submit the approved product drawings along with the working drawings. This chapter presents ndot criteria for the design and selection of expansion joints in bridges. 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 general categories we supply can be described by the materials used and the type of movement provided.
Design of spool type joints to over 10 foot 120 or 3m i. 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. This system can be manufactured according request of customer by using extrusion profiles or welded profiles. Flexible connector an elastomeric expansion joint is a specially designed section of pipe inserted within a rigid piping system to provide flexibility. Design miscellaneous standards posted april 2019 bridge joint standards updated due to field performance seja retired the name of standard sejb and sejm replace the seja paint notes paint entire section bridge expansion joint guide new. The standard plans for bridge construction shown on this site are for designers to use in preparing contract plans only and are not for direct use by the contractor. The following general criteria apply to all expansion joints in bridges. 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. Therefore, it is extremely sensitive to errors of various natures, which lead to the development of anomalies that. Expansion joints september 2008 195 where practical and where additional protection for bearing assemblies and hinges is warranted, a secondary sealing system may.
Recent changes in minnesota bridge construction have created a challenge for maintaining expansion joints. View underneath max wilder bridge showing result of leaky joint seal. Download 35 bridge expansion joint stock photos for free or amazingly low rates. Minimize number when conditions permit, the bridge engineer should eliminate expansion joints and tie the approach slab into the superstructure. Expansion joints accommodate the expansion and contraction of bridges due to temperature variations. The 2017 bejs durable tabbed product information and selection guide is now available from emseal. While minnesotas bridges traditionally utilized parapettype abutments, where the beams rest on bearings that.
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. The teeth are also wider compared to the fingers of the finger plate type expansion joints. Fancy new bridge this joint is located at an abutment. When joints leak on steel, it doesnt take long for salt water to corrode load carrying members. Bridge joint locations bridge bridge joint another bridge joint, way down here. Expansion joints ensure the continuity of bridge traffic while ensuring a watertight seal on the deck. Learning from other states options for bridge expansion joints what was the need.
438 489 921 261 930 1572 1259 1182 336 1067 1312 1203 670 690 1457 1071 614 47 1067 177 607 620 1310 1151 1114 550 1293 1068 464 152 558 274