Model elastomeric bearing in midas civil

The general form of element force vector, The degrees of freedom and discrete spring representation of an elastomeric bearing is shown in the below figures. The two nodes are connected by six springs that represent the mechanical behavior in the six basic directions of a bearing. The physical model of an elastomeric bearing is considered as a two-node, twelve degrees-of-freedom discrete element. 2 Consideration of characteristics to include under extreme loading.1 Physical Model and Mechanical Properties.User should distinguish between yield strength of elastomeric bearing (Fy) and characteristic strength (Qd): Qd=Fy*(1-alpha) Tag to include vertical stiffness variation (optional, default = 0)Д«ecause default values of heating parameters are in SI units, user must override the default heating parameters values if using Imperial units Tag to include horizontal stiffness variation (optional, default = 0) Tag to include buckling load variation (optional, default = 0)

Tag to include cavitation and post-cavitation (optional, default = 0) Viscous damping parameter (optional, default = 0.0)Д¬over thickness (optional, default = 0.0) Shear distance from iNode as a fraction of the element length (optional, default = 0.5) Strength reduction parameter (optional, default = 1.0) Vector components in global coordinates defining local y-axis (optional)Д¬avitation parameter (optional, default = 10.0)Дamage parameter (optional, default = 0.5) Vector components in global coordinates defining local x-axis (optional) Outer diameter (excluding cover thickness) The time-dependent values of mechanical properties (e.g., shear stiffness, buckling load capacity) can also be recorded using the 'parameters' recorder.Д®lement ElastomericX $eleTag $Nd1 $Nd2 $Fy $alpha $Gr $Kbulk $D1 $D2 $ts $tr $n $y1 $y2 $ењ“> The material models in six direction are formulated within the element from input arguments. However, instead of the user providing material models as input arguments, it only requires geometric and material properties of an elastomeric bearing as arguments. This elements extends the formulation of Elastomeric_Bearing_(Bouc-Wen)_Element element. The 3D continuum geometry of an elastomeric bearing is modeled as a 2-node, 12 DOF discrete element. To get more details, go through the following video tutorial.This command is used to construct an ElastomericX bearing element object in three-dimension. Internal structure comprises of a sandwich of mild steel shims and rubber moulded as one unit.Д®lastomeric bearing pads provide most economical solution for developing large span bridges and buildings. They are designed and manufactured depending on the standards and specifications of such organizations as British Standard, AASHTO, and European Norms En 1337.

The pads facilitate the governments to save significant money by lingering the replacement of bridges.ДЄs bridge elastomeric bearing pads are important for a secure and cost-effective bridge design, they are expansively prototyped and tested prior to be utilized in production. Besides, It expands the life of bridges by minimizing deterioration on bridge materials. Their main purpose is to allocate superstructure loads to the substructure and facilitate the superstructure to endure required movements in irregular environmental conditions devoid of generating any destructive stresses that leads to destroy the structural integrity of the bridge and as a result the bridge may fall down.Д«earing pads are mainly utilized to sop up compressive forces, destructive effects of shock and vibration. These pads are provided among the superstructures like the bridge beam and substructures similar to the vertical supports known as piers. It is usually formed with a strong and elastic material like neoprene - a sort of heavy-duty industrial rubber. These are all normally referred to as bridge bearing pads in the construction industry.Д«ridge flexibility can be properly maintained by a constituent known as bridge elastomeric bearing pad.

Model elastomeric bearing in midas civil