Slopes for drainage troughs shall be maximized and where possible, the. Structural expansion joints 2162017 1 structural expansion joints stephanie wagner, pe bridge design engineer at indot february 16, 2017 whats the big deal. Longitudinal deck expansion joints should be avoided for bridge widths under 100. This book provides a guide to movement and restraint in bridges for bridge engineers and will enable them to draw up design calculations and specifications for effective installation, and satisfactory service and durability of bearings and joints. Preformed silicone expansion joint seals for highway bridges. Failure mechanism of expansion joints in a suspension bridge. Pdf introduced in 2010 en 37 structural bearings is nowadays a basic act. Mar 08, 20 bearings and expansion joints probalbly cause more difficulties fro the bridge engineer than any other part detailing and careful installation of the bearings, drainage and expansion joints. Bridge bearings and expansion joints, second edition. The sealing elements, when gripped between the rails and beams, will provide a water tight. Section 11 joints and bearings october 28 2016 6 bc moti. Thomas gionet, graduate research assistant prepared for the new england transportation consortium. Arfen as a construction material manufacturers, is exporting product to 25 countries internationally as. The design shall accommodate the coefficient of thermal expansion of hdpe which is an order of magnitude greater than steel.
To accommodate differential lateral movement, elastomeric bearings or combination bearings. To further enhance our bridge solutions we can now offer a full range of mechanical bridge joints, bearing pads and pot bearings in partnership with european, and long time manufacturer, etic. Then the bearings, bearing seat, and the area surrounding the bearings. Cadini group is the exclusive distributor of alga fpc italia products for iraq and sudan. The 2017 bejs durable tabbed product information and selection guide is now available from emseal. Ccl quality delivering quality at every stage, all bridge bearings are designed individually to exacting standards using high specification materials from approved sources. Facilitating innovative bridge design the bearings and. Orf bridge solution offers a variety of expansion joints to suit a wide range of movement and gaps between bridge decks. Bridge bearings and expansion joints, second edition lee, d j, lee, d. Consults with the joint seals and bearings technical specialist for special designs on large mr sealed joints. Arfen steel bridge expansion joints are consisting of a waterproof rubber gasket and steel profiles to absorbe movements. Watertight joints protect the bridge deck and the bearings below, preventing water ingress, concrete spalling and structural failure. The joints installed within the traffic lane of the bridge were considered.
Brian swanson, graduate research assistant, and mr. Neoprene i n bridge bearing pads the proven performance, extending. Bearings and expansion joints chapter 9 wsdot bridge design manual m 2350. Pot bearings in most concrete and steel structures accommodation must be made for relative movement between structural members in order to avoid the buildup of dangerous stresses. The inner steel plates in the bearings must be at least 2 mm. 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. Fosroc etic solutions for bearings and expansion joints.
Structural bearings and expansion joints for bridges sed 6 details this book is aimed at both students and practising engineers, working in the field of bridge design, construction, analysis. Vsb series ptfesteel slide bearings on voss engineering. Minnesota bridges with parapet type abutments typically have strip seal expansion joints at the abutments to isolate superstructure movements from the abutments. Relevance of bearings and expansion joints case studies for. The opening of tooth expansion joints may be larger than 4. The performance of bridge joints is affected by temperature and traffic volume, together with the nature of the traffic. If sliding bearing requested, it can be designed according to standards using ptfe and stainless steel. Based on the location of joint, expansion joints are divided into following types, 1. Bridge standards and procedures manual volume 1 section. Sealed expansion joint systems provide barriers preventing runoff water and deicing chemicals from passing through the joint onto bearing and substructure elements below the bridge.
The location of the bridge in a seismically active area also resulted in requirements relating to the performance of these vital bridge. Our team will work with you to prepare a custom quote centered around your specific project needs. The former permits both translational and rotational movements whereas the latter allow rotational and limited translational movements. Modern bridge bearings and expansion joints for road bridges. Kinedyne incorporated modular expansion joints and systems are subdivided in several secondary gaps by steel members called edge rails and center beams. The purpose of a bearing is to allow controlled movement and thereby reduce the stresses involved. Wabo expansion joints, bearings and parking structures. 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.
Bridge temperatures for setting bearings and expansion joints. The kinedyne engineers and fabricators will then work together to fulfill your order under the tightest. 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. Relevance of bearings and expansion joints case studies. Joints and bearings 142 2019 expansion joint devices shall prevent water, deicing chemicals, and debris infiltration to the substructure elements below. Rocker is an expansion bearing composed of curved surface at the bottom, which accommodate translational movement and a pin at the top makes room for rotation movement as illustrated figure2 and figure3 in detail. Rocker is an expansion bearing composed of curved surface at the bottom, which accommodate translational movement and a pin at the top makes room. Arfen as a construction material manufacturers, is exporting product to 25 countries internationally as well as nationally. Problems of bridge supporting and expansion devices and an. The present paper shows the sophisticated solution specially developed for the botlek bridge in. Full text of structural bearings and expansion joints for bridges see other formats. Expansion joints they permit displacements and rotations between abutted structural parts, ensuring continuity of the carriageway and watertightness. Bridge bearings are used to transfer forces from the superstructure to the substructure, allowing the following types of movements of the superstructure.
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. If it is not possible to measure the movement of the deck, an alternative, but less accurate, means of estimating the bridge temperature, similar to that used for concrete bridges, is described. Allow bridge to expand and contract w temperature changes. The target of this paper is to give a very short stateoftheartreport on bearings and expansion. Introduced in 2010 en 37 structural bearings is nowadays a basic act intention of which is providing a good manufacturing quality and operation of modern. Arfen makes technical meetings with the customer to find solutionsand most economical design. Bridge expansion joints are designed to allow for continuous traffic between structures while. Where hdpe material is used for joint drainage, the material shall be uvresistant. Watson bowman acme bridge and architectural expansion joints, bearings and parking structures reliable, sustainable and innovative product solutions for the construction industry watson bowman acme corp. The bridge designer should specify the expansion joints in a similar manner to bearings, giving details of characteristic and design values of displacements to the joint designer. Determines the mr movement rating of all bridge expansion joints and prepares the joint movements calculations sheets.
View underneath max wilder bridge showing result of leaky joint seal. An expansion joint represents a discontinuity point in a road pavement. Bridge preservation achieved through low cost, watertight joint solutions. This standard supersedes bd 3388 and covers the requirements for the use of expansion joints in highway bridge decks. The expansion joints were characterised based on their type, and age of the bridge. Mellott the ability of a bridge deck expansion joint to be smooth riding, durable, and waterproof is essential to the performance of the bridge superstructure.
This book is written to help the practising bridge engineer to understand the principles of movement of bridge structures and to achieve sound designs. They come in a wide range of formats, each format having a certain movement range to accommodate, with only the types of materials used remaining constant. Standard practice for washing and cleaning concrete bridge. 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. Premature failure of expansion joints is a concern for bridge owners. Modern bridge bearings and expansion joints for road. Full text of structural bearings and expansion joints for. Pdf modern bridge bearings and expansion joints for road bridges. A steel rocker bearing consists of a pinned joint to accommodate rotation and a rocker to. Introduction in recent decades one can observe a great development of modern structural designs for bearings, block et al. Expansion joints shall also provide a relatively smooth riding surface between approach pavements and the structure, or adjacent structural elements. Pdf expansion joints and bearings in botlek bridge. This system can be manufactured according request of customer by using extrusion profiles or welded profiles.
Modern bridge bearings and expansion joints are at present rather mechanical structures but not construction ones as they were treated previously. The main function of expansion joints is to absorb movements of bridges. The superstructure box girder along with the pylons is connected to the piers through a set of bearings. Therefore, it is extremely sensitive to errors of various natures, which lead to the development of anomalies that. Thermal expansion and contraction permanent creep and shrinkage post tensioning strain live load deflections. Boltdown panel joints strip seal joints steel finger joints design example 2 25. The use of expansion joints and structural bearings in movable bridges is a particular challenge. Bridge bearings and expansion joints in searchworks catalog.
Bridge bearings also makes rooms for relative movements between superstructure and substructure, for instance, rotation movements and translational movements in horizontal and transverse direction. Bearing used in the construction of bridge structure is divided into two major categories namely expansion bearings and fixed bearings. Spherical bearings spherical bearings are the most uptodate technology, providing the most efficient and most durable design for bridge bearings design. Bridge bearings types of bearings for bridge structures. An integral abutment eliminates the expansion joint in the bridge. The following general criteria apply to all expansion joints in bridges. In the schedule of prices accompanying the lump sum tender, the cost of modular bridge expansion joints. Dec 05, 20 licensed to youtube by sme on behalf of masterworks. Bbearing and stu arrangement the 830m main bridge has expansion joints at two ends. Pdf modern bridge bearings and expansion joints for road. Bridge bearings and expansion joints, second edition d j. Crete siliconeseal system is a high performance expansion joint system utilizing a dynamic twopart sealant between impact absorbing elastomeric concrete headers. Elastomeric and steel expansion joints elastomeric and steel expansion joints realize connections between different parts of structures allowing relative movements. Arfen as a construction material manufacturers, is exporting product to 25 countries internationally as well.
How ever, the joints should be situated in zones with minimal stress range and must be welded very carefully because of the high fatigue loads. 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. They stop the bridge from bending out of place in extreme conditions, and also allow enough vertical movement to permit bearing. Annex b of bs en 19932 contains guidance for the preparation of a technical specification for expansion joints. The latest design software and fea is used to optimise bearing design for efficiency and cost. Modern bridge bearings and expansion joints for road bridges andrzej niemierko a, aroad and bridge research institute, instytutowa 1, 03302 warsaw, poland abstract introduced in 2010 en 37 structural bearings is nowadays a basic act intention of which is providing a good manufacturing quality and operation of modern bridge bearings. In the last 15 years cadini group has supplied more than 10. Each rail and beam incorporates a locking cavity to mechanically secure the seal into place. A bridge bearing is a component of a bridge which typically provides a resting surface between bridge piers and the bridge deck. Based in switzerland, mageba is a world leading supplier of structural bearings, expansion joints and other highquality products and services for bridges and buildings.
Bearings and expansion joints probalbly cause more difficulties fro the bridge engineer than any other part detailing and careful installation of the bearings, drainage and expansion joints. Browse vsb series ptfesteel slide bearings in the voss engineering, inc. These requirements are usually covered by product guidelines, which vary between. Possible causes of movement are thermal expansion and contraction, creep, shrinkage, or fatigue due to the properties of the material used for the bearing. Bridge bearings and expansion joints, turkey bridge bearings. Bridge expansion joints are designed to allow for continuous traffic between structures while accommodating movement, shrinkage, and temperature variations on reinforced and prestressed concrete, composite, and steel structures. Bridge bearings types of bearings for bridge structures and. Knowledge of this effective temperature enables the bearings or expansion joints to be set at their correct positions within the design temperature range. Expansion joint devices are designed to accommodate structure movement, provide smooth and quiet passage of traffic, prevent water runoff particularly deicing chemicals from. My intent was to give a short guideline on bearings and expansion joints for bridge designers and not to mention all the. The expansion bearing is provided with a hole through which a 25mm diameter anchor dowel is inserted and compressible material is injected.
Since the use of steel, reinforced concrete and prestressed concrete as bridge building materials, structural bridge bearings had to be used. 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. My intent was to give a short guideline on bearings and expansion joints for bridge designers and not to mention all the requirements for the manufacturers of such products. This concise guide is an indispensable tool to become familiar with the bridge expansion joint system. A new elastomeric foamtype joint sealant has been developed for sealing smallmovement bridge expansion joints. Structural bearings and expansion joints for bridges. With over 700 employees across four countries and eight factories on two production sites, orf supplies customers with innovative, quality solutions. Problems of bridge supporting and expansion devices and an experimental comparison of the dynamic behavior of rigid and elastomeric bearings by j. On the other hand the gap between bridge and abutment is bridged by means of expansion joints. Minimize number when conditions permit, the bridge. After opening to traffic, the jiangyin suspension bridge experienced frequent damage in expansion joints, and the problem. The report describes a method by which the effective temperature of a concrete bridge may be determined at any time of day from measurement of the shade temperature and observation of the weather. Because of this con stant drive to improve, there is a wide selection of systems, materials and. Bridge bearings expansion joints products cts industries.
Ocean rubber factory is the middle easts leading supplier of technical rubber products. The kinedyne engineers and fabricators will then work together to fulfill your order under the tightest quality control standards which will be delivered on time and within your budget. Expansion joint bridge expansion, compression seal joints. Expansion joint in concrete types and characteristics. Description about book bridge bearings and expansion joints from amazon this book provides a guide to movement and restraint in bridges for bridge engineers and will enable them to draw up design calculations and specifications for effective installation, and satisfactory service and durability of bearings and joints. Sealing of bridge expansion joint systems is important to protect the structural components below the joint from damage due to water, salt, and other roadway debris.
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