Bridge bearings are widely used to transfer forces from superstructure to substructure.
Bridge bearings are also widely used to reduce the vibration from ground to the superstructure.
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Bridge bearing, as connection component, can provide a resting surface between bridge and bridge piers. And the purpose of bridge bearing is to transfer forces from the superstructure to the substructure or reduce the ground vibration to the superstructure. Generally, according to its different structures, bridge bearing can be divided into elastomeric bearing, pot bearing, spherical bearing and seismic isolation bearing. Available with bridge bearing, bridges or buildings can better to maintain their original state during external forces, like wind or seismic activities, or internal forces, like self weight.
Elastomeric bearing pad, can be classified into plain elastomeric bearing, laminated bearing pad and PTFE sliding elastomeric bearing.
Pot bearing, made of elastomeric pad embedded into the steel plate is divided into fixed bearing, guided bearing and free pot bearing.
Spherical bearing, with fixed, guided and free sliding type is suitable for more complex bridges in low temperature regions.
Combining with the project of Foshan West Railway Station, this paper systematically analyzes the causes and the harms of the beam bearing using cast in place and introduces the construction process of lifting the beam to level the bearing.
This paper presents the acceptance of building isolation engineering, mainly including the acceptance of the isolation members and isolation layer.
Considering the adverse effect on seismic performance caused by abrupt story stiffness change and the metro vibration, inter-story isolation technology using thick rubber bearings is adopted in the design of transfer floor for a multiple buildings with large podium.