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The drainage of the joint is via the drainage system of the bridge deck.Ĭertain joints feature so-called sinus plates on their surface, which reduce noise from over-passing traffic by up to 80. The individual gaps are sealed by watertight elastomeric profiles, and surface beam movements are regulated by an elastic control system. The total movement of the bridge deck is divided among a number of individual gaps which are created by horizontal surface beams. They can be used for longitudinal movements of as little as 160 mm, or for very large movements of well over 3000 mm. ![]() Modular multiple-gap expansion joints can accommodate movements in every direction and rotations about every axis. They include joints for small movement (EMSEAL BEJS, XJS, JEP, WR, WOSd, and Granor AC-AR), medium movement (ETIC EJ, Wd), and large movement (WP, ETIC EJFGranor SFEJ).Ī watertight system, invented by the Swiss company Mageba, is designed on a modular basis and can be tailored to satisfy the specific requirements of almost any structure. ![]() There are various types, which can accommodate movement from 30 to 1,000 millimetres (1.2 to 39.4 in). They stop the bridge from bending out of place in extreme conditions, and also allow enough vertical movement to permit bearing replacement 1 without the need to dismantle the bridge expansion joint. BUILDING SETTLEMENT MARKER INSTALLATION GUIDE CRACKBuilding Settlement Marker Ation Guide Crack Under Theīefore expansion joint gaps were built into these structures, they would crack under the stress induced. They are commonly found between sections of buildings, bridges, sidewalks, railway tracks, piping systems, ships, and other structures. Please help improve it by removing promotional content and inappropriate external links, and by adding encyclopedic content written from a neutral point of view.ĭecember 2020 ) ( Learn how and when to remove this template message ).
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