AS 5100.4:2017 pdf free

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AS 5100.4:2017 pdf free.Bridge Design – Part4:Bearings And Deck Joints.
This Standard sets out minimum design and performance requirements for bearings and deck joints for the articulation and accommodation of movements of bridge structures. It applies to elastomeric, pot, spherical and mechanical bearings and deck joints, all of which are locations where rotation or translation, or both, can take place. It does not apply to concrete hinges.
For the purpose of this Standard, the definitions below apply.
3.1 Bonded layer
A layer of elastomer bonded on both faces to metal plates, achieved by a vulcanization process.
3.2 Deck joint
A structural discontinuity between two elements, at least one of which is a deck element, which is designed to permit relative translation or rotation, or both, of abutting structura elements.
3.3 Laminated bearing
An elastomeric bearing with two or more metal plates bonded into the elastomer.
3.4 Modular deck joint
A joint that consists of a number of transverse beams and seals that are connected to a series of support mechanisms that provide a large movement capability.
3.5 Plain bearing
A bearing made up of a single unbonded layer of elastomer.
3.6 Pot bearing
A bearing that carries vertical load by compression of an elastomeric disc confined in a steel cylinder and which accommodates rotation by angular deformation of the disc.
3.7 Rated load
The calculated maximum permissible compressive load that is applied to a bearing when it is subjected at the same time to specified shear strain and rotation.
3.8 Semi-bonded laver
A layer of elastomer bonded on one face to a metal plate.
3.9 Spherical bearing
Bearing consisting of a plate with a convex spherical surface and a plate with a concave spherical surface between which a low friction sheet and a mating material form a curved sliding surface.
3.10 Strip bearing
A plain bearing pad in which the length is more than 10 times the width.
3.11 Unbonded laver
A single layer of elastomer that is not bonded to metal plates.
4.1 Notation
The symbols used in this Standard are as listed below
Unless a contrary intention is given, the following applies:
(a )Where non-dimensional ratios are involved, both the numerator and denominator are expressed in identical units
(b)The dimensional units for length and stress in all expressions or equations are to be taken as millimetres (mm), Newtons(N)and megapascals(MPa)respectively, unless specifically noted otherwise.
(c)An asterisk () placed after a symbol as a superscript denotes a design action effect due to the design load for the ultimate limit state(ULS).

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