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Checking whether the anchor bolt is cut and the rubber sealing is cracking and aging. The bearing is composed by steel elements coupled with PTFE surface to allow movement and rotations. Checking whether the relative displacement of the spherical bearing is uniform and record the displacement one by one. The spherical bearings are provided with a special sliding material, called ISOGLIDE, which is an innovative patented product, whose material characterization tests have been performed at … Thus, spherical bearings are especially suitable for more complex bridges. Possible causes of movement are thermal expansion and contraction, creep, shrinkage, or fatigue due to the properties of the material used for the bearing. It typically consists of a pin at the top that facilitates rotations, and a curved surface at the bottom that accommodates the translational movements. Types of bearing Table 1 shows the main types of bearing that are used in steel bridges. SBB-14: Spherical bearing for bridge durability. RJW Spherical Bearings are used to accommodate thermal, seismic and mechanical expansion and contraction and also provide multidirectional rotation for highway bridges, railway bridges and other civil engineering structures. While, depending on whether the spherical bearing is fixed, guided or free sliding, the vertical loads, horizontal forces, longitudinal movements or transverse movements can be accommodated. © Copyright 2016 Zaoqiang Dacheng Rubber Co., Ltd. There are advanced technology, safe production environment, professional production team, strong sales team and other service to help you choice the suitable production. Spherical bridge bearing can be used in different complex bridges, such as curved bridges, skew bridges, right bridges. And it can accommodate large movements and rotations in excess of +/- 0.03 radians. As we all know, the spherical bridge bearing can be divided into fixed type, guided type and free sliding type. Painting the steel components of the spherical bearing regularly to avoid rust destroy (except the stainless steel slide). Spherical bearing types SBB-11: Construction site of structure spherical bearing. The bridge engineers require a comprehensive document deal-ing with all facets of bridge bearings to facilitate procurement, Spherical bridge bearing, also called spherical bearing, spherical bearing pad, is designed to ensure vertical and horizontal forces transferring under control which is a connection devices between superstructures and substructures. … Bearing is a component of a bridge which typically locates between bridge substructures and superstructures, playing an important role in the force transmission and in accommodating the deformation caused by temperature variation and the earthquake. During using, the spherical bearing needs to be inspected and maintained regularly. ... that bearing design and supply is critical if a project is to be delivered on time and to specification. Working principle of spherical bearing SBB-04: Free Sliding spherical bridge bearing. In the cast-in-place construction of the bridge, it is easy to cause various defects of the spherical bearing due to the long construction period and the lack of supervision. The standard range of bearing is designed to have an horizontal load ≤ 15% of the maximum vertical load with a maximum rotation of ± 0.02 rad (other load and rotation combinations are provided on request).In order to define the correct bearing… Spherical Bearings. Steel bearings The details are primarily used for fixed bearing lines. Spherical Bearings. If you want other specifications, just contact us and we will customize them for your projects. Versiflex™ HLMR Spherical Bearing Assemblies are most commonly utilized at locations where very high vertical loads and/or large structural rotations are present. Allows for large horizontal displacement. The details include pot, disc, and spherical bearings 3. Guided spherical bearing with edge steel guide accommodates unidirectional movements. Accommodate high rotations and any directional movements. girder bridges and steel bearings. With the advent of new technology, RCC and PSC bridges along with elastomeric and PTFE bearings are gradually replacing steel bridges and conventional bearings. If you need to consult the price, please contact the business department by e-mail: sales@bearing-pad.com. Here are detailed specifications of these three types, refer to them and choose the best one suitable for you. They do not contain any elastomeric components, and rotation takes place on a spherical Bridge bearing manufacture; Replacement. The spherical bridge bearings are classified into three types according to different sliding direction. It is can also be used in places where large rotational structural displacement are needed to be accommodated. two spherical bearing products which differ mainly in accordance with the strategy used at the sliding surface interface. Free sliding type spherical bridge bearing, GPZ (Ⅲ) Highway Bridge Seismic Pot Bearing, GPZ (KZ) Highway Bridge Seismic Pot Bearing, Popular Specifications of Rectangular Lead Rubber Bearing, Popular Specifications of Round Lead Rubber Bearing, Popular Specifications of High Damping Rubber Bearing. Designed and sized according to the specific requirements of your project, these bearings transfer large vertical loads while accommodating the structure’s relative movement. These bearing categories are sufficient to cover the vast majority of structures in the national bridge inventory. high-calibre structures, bridges, oil platforms, sports stadia, nuclear power stations, office and residential buildings across the world. And, to repeat, since the German Railway Administration strongly discourages the use of pot bearings in railway bridges, basically only MSM spherical bearings are manufactured for German Railways. Freyssinet’s bearing assessment and replacement service combines its pre-eminent position as a bridge bearing manufacturer with its expertise in design, supply and operation of jacking systems and knowledge of specialist construction chemicals such as grouts and epoxies. Spherical bridge bearings are designed for bridges or structures where very high vertical, horizontal and lateral loads are needed. Spherical Bearings. Bearing is one of the most important components of the bridge structure. Spherical bridge bearing, also called spherical bearing, spherical bearing pad, is designed to ensure vertical and horizontal forces transferring under control which is a connection devices between superstructures and substructures. For trunion bearings in bascule bridges the choice is generally between non-self aligning bronze sleeves and spherical roller bearings. Fixed spherical bearing only allows for rotations, any longitudinal or traversal movement is restrained. The bearing is composed by steel elements coupled with PTFE surface to allow movement and rotations. (In condition of PTFE layer with silicon grease lubrication and stresses about 30 MPa). Spherical Bearings can carry very high loads, over 100.000 kN The bearings are designed for combined maximum vertical and horizontal loads. A rocker bearing is a type of expansion bearing that comes in a great variety. Spherical bearings are designed to carry combinations of vertical loads, horizontal loads, longitudinal and transversal movements and rotations and they are used in steel and concrete road and railway bridges. With high strengthened steel body, spherical bearing is especially designed for high vertical, horizontal … These types of bearings are more expensive than pot bearings due to the increased machining and would only be used on major structures, to accommodate increased deck … When you contact us, please provide your detail requirements. Clean the debris and dust around the spherical bearing, while at the same time, using the cotton cleans surface of the stainless steel. What's more, the guided bar and the restraining ring also can transmit the horizontal forces. The most frequently used type of bearing for highway bridges is the proprietary pot bearing, which is able to accommodate rotation and, Goodco Z-Tech spherical bearings consist of an assembly of precision-machined steel components with spherical concave and convex elements in its center. ... Disc Bearings have been extensively used on railroad bridges as well as highway bridges. Generally, the terminology used in EN 1337 is adopted in the Table alt-hough not all types of bearing are covered by EN 1337. Featuring a clearly more compact design than other rolling bearings, they are extremely strong and withstand highest loads. Then there is a stainless steel panel with a convex bottom face to facilitate rotations. A bridge bearing is a component of a bridge which typically provides a resting surface between bridge piers and the bridge deck.The purpose of a bearing is to allow controlled movement and thereby reduce the stresses involved. Special bridges may require different bearings. Supplied Spherical Bearings for Major Bridges of Ring Road, Jammu. It typically consists of a pin at the top that facilitates rotations, and a curved surface at the bottom that accommodates the translational movements Rocker and pin bearings are primarily used in steel bridges. E-mail: The design principle of the spherical bearing is that of a fixed bearing that allows rotation in any direction, the characteristic feature being that rotational movements of the bridge superstructure about any axis (point-type tilting) are transformed into sliding movements between the convex and concave plates of the bearing. The stainless steel slide and PTFE slide can further reduce friction coefficient, thus displacement of expansion and contraction can be accommodated. Check the height changing of the spherical bearing to confirm the abrasion condition of the PTFE slide. The CCL team draws upon skills from across the Group Spherical bearings are the result of the most up to date technology. A sole plate may also be embedded into the bottom flange of a prestressed concrete girder. BEARING TECHNOLOGIES POT BEARINGS In most concrete and steel structures accommodation must be made for relative movement between structural members in order to avoid the build-up of dangerous stresses. Loose the anchor nut regularly, clean and oil the anchor nut to avoid rust, and then fasten the anchor nut. SBB-12: Construction site of bridge spherical bearing. We have established long term cooperation relationship with many companies and our products have been used in many projects successfully. Our bearing pads have been used in many famous engineering successfully, we deserve your trust. With high strengthened steel body, spherical bearing is especially designed for high vertical, horizontal and lateral loads and where large rotational structural displacements need to be accommodated. SBB-13: Spherical bearing for building structure stability. Stainless Steel Convex Plate Specific Design Features include: Use of woven PTFE (Max pressure of 5500 psi) A rocker bearing is a type of expansion bearing that comes in a great variety. The bearing is composed by steel elements coupled with PTFE surface to allow movement and rotations. The source of this movement may be: Similar with pot bearing, spherical bearing also can be divided into three types: fixed spherical bearing, guided spherical bearing and free sliding spherical bearing. More suitable for the low temperature regions. RJW SPHERICAL BEARING DATA SHEET R.J. Watson • Bridge & Structural Engineered Systems • 78 John Glenn Drive • Amherst, NY 14228 www.rjwatson.com • phone: 716-691-3301 • fax: 716-691-3305 • e-mail: sales@rjwatson.com And when the height of spherical bearing changes over than 3 mm, the rubber sealing should be removed to inspect the condition of the PTFE slide. Spherical bridge bearing features its precision-machined steel plates with concave ad convex surfaces. The effect on concrete reaction is homogeneous. This is normally lined with dimpled PTFE and matched to an upper stainless steel surface. Sole Plate The sole plate is a steel plate that is attached to the bottom of girders or beams or truss chords. 1000, 1500, 2000, 2500, 3000, 4000, 5000, 6000, 8000, 9000, 10000, 12500, 15000, 17500, 2000 kN. The Disc Bearing with its Polyurethane Disc element gives a cushioning effect, durability and is designed to handle the excessive live loads, often present in railroads. It consists of steel plate enclosed with edge sliding guide and stainless steel panel for sliding controlling, under the stainless steel panel is a PTFE sheet, which is recessed into the steel to a depth and contains a special lubricant to ensure permanent lubrication of the sliding surfaces. Zaoqiang Dacheng Rubber Co., Ltd. is the professional manufacturer of complete and high quality bridge bearing products in China. Radial spherical rolling bearings are practically predestined for systems with a greater range of motion such as bascule and swing bridges, in which high radial loads occur in combination with axial loads. Elastomeric bearings Pot bearings Spherical bearings can withstand both large vertical loads and significant rotation (up to 50 mrad). Spherical bearing, also called spherical bridge bearing, is one type of bridge bearings with large rotation capacity. It consists of steel plate enclosed with edge sliding guide and stainless steel panel for sliding controlling, under the stainless steel panel is a PTFE … 16. The sliding of convex plate and concave plate can accommodate the structural rotations of the beam end. Maintenance of spherical bearing Hengshui JingTong Rubber Co., Ltd. with more than 15 years experience to offer bearing pad all over the word. MSM Spherical Bearings are already approved & in wide usage in countries like Spain, France, Russia, and a range of other countries. Free sliding spherical bearing can slid in all directions. Spherical bearing, also called spherical bridge bearing, is one type of bridge bearings with large rotation capacity. sales@bridgebearing.org. There are two main configurations including single roller bearing which is composed of one roller placed between two plates and multiple roller bearing that consist of several rollers installed between two plates. Complying with BS EN-1337, KS4424, AASHO, ISO or other custom standards. CECO POT bearing consisting of a metal piston supported by a disc of unreinforced elastomer that is confined within a metal cylinder for allowing rotational movement about any axis in horizontal plane and to bear and transmit vertical load. Roller bearing can be used in the construction of reinforced concrete and steel bridge structure. For the PTFE sheet, there are minimum sliding friction coefficient. The MAURER Group is a leading specialist ... bridges and complex structures can be controlled through selective use of expansion joints, structural bearings, Spherical bearing are designed to carry combinations of vertical loads, horizontal loads, longitudinal and transversal movements and rotations and they are used in steel and concrete road and railway bridges. Spherical bearings are used to accommodate large rotations by the use of a lower spherical surface. Similar with pot bearing, spherical bearing also can be divided into three types: fixed spherical bearing, guided spherical bearing and free sliding spherical bearing. Roller Bearings for Bridges. The most popular product is designed primarily for use in railway bridges and consists of a convex bronze or stainless steel base We have been focusing on research and development in recent years and we have made great achievement in this industry. High strengthened stainless steel makes it durability. Spherical bearing are designed to carry combinations of vertical loads, horizontal loads, longitudinal and transversal movements and rotations and they are used in steel and concrete road and railway bridges. Self-aligning plain bearings with their high frictional torque, short life due to wear from contamination, and significantly higher cost (considering bearing and housing) are rarely used. MAURER Spherical Bearing Dimensions p. 15 MAURER References p. 28 Berlin Main Station / Germany >> Content 2. Copyright © 2010–2018 Hengshui JingTong Rubber Co., Ltd. All Rights Reserved. A bridge bearing consists of four basic elements; sole plate, bearing or bearing surface, masonry plate and anchorage. One type of bridge bearings are used to accommodate large movements and rotations excess. 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Stainless steel panel with a convex bottom face to facilitate rotations embedded into the bottom component concave! In many famous engineering successfully, we deserve your trust not all types bearing! Plate is a type of bridge bearings with large rotation capacity of the bearing ( up to 50 mrad..

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