model elastomeric bearing in midas civil

Part 3-8 deals with the quality and design standards of different types of bearings. Part 2 is related to the sliding and de sliding elements of a bearing. Part 1 is related to general design rules and bearing schedule template.

Structures with loaded length less than 2mĬS454 is used for the assessment of the deck and BD37/01 is used for bearing design.īearings are designed to BS EN 1337.

Structures with longitudinal members at the centers of 2.5m or less with low transverse distribution.

Structures with transversely spanning trough decks.

Not suitable for certain situations (cl.5.6).

Based on real vehicle with authorized weight.

Assessment live loads to be considered are ALL Model 1 and ALL Model 2: Detailed assessment verification reports can also be generated in midas Civil.

Assessment of the PSC bridge can be performed in midas Civil asper CS 454. The basic assessment process for CS 454 is shown below. It also has traffic load models for loaded lengths greater than 50 m, previously in BD 50. CS 454 includes wind, thermal, and HB load models in the new appendix, previously in BD 37. However, BD 21/01 was superseded by CS 454, which was released in June 2019 and revised in March 2020. Even though the cost of installing the bearings in good conditions may be high, it excessively small compared to the cost of failure of a bridge structure.įor PSC bridges, BD 21/01 was used earlier for the assessment of the deck during jacking. Failure of the bridge bearings could lead to catastrophic failures of the bridge. There can be inconsistencies during the installation, which can cause the failure of the bearings even before their life span.

In most cases, the life span of the bridge bearings is less than that of bridges. Inspection and Maintenance Needs of Bridge Bearings

Bearings also reduce shear demand on the head of the piers or abutments.

Bearings play an important role in the adjustment of the dynamic properties of bridges (eg.

Allow translational and rotational movement of the superstructure and avoid the generation of secondary stresses in the structure.

Help in dissipation and transfer of dynamic forces to the substructure without causing any wear or damage.

Some of the most important functions of bridge bearings are listed below. The main purpose of bridge bearings is to connect the deck to the substructure. Bridge bearings are important structural components of bridges.

Model elastomeric bearing in midas civil