fixed end

One directional

Multi directional

종류

KS F 4424 Elastic bearing for bridge bearing

KDS 24 90 11: 2018 Bridges and Other Facility Design Standards (Limit State Design Method) / Ministry of Land, Infrastructure and Transport”

KCS 24 40 05 : 2016 Bridge Bearing / Ministry of Land, Infrastructure and Transport

BS5400 Part 9 : Bridge bearings

Problems with conventional integrated elastic struts (anchors)

• Anchor bolt/socket size determination for allowable horizontal force during earthquake
• Break concrete blocks to remove existing anchors during maintenance
• Occurrence of bolt loosening due to vibration of medium, large, and large vehicles from bridges

Integrated elastic receiver with horizontal force control device

• Excellent workability and maintainability by minimizing the bolt standard by increasing the ability to control the horizontal force of the anchor bolt/socket.
• During maintenance, the lower plate is made of two plates and concrete No cracks and low maintenance costs
• Compression springs are applied to the lower plate fixing bolts to prevent loosening of the bolts due to vibration.

Problems of conventional integrated elastic struts

• Can not be used on medium/kandai bridges or when the displacement during an earthquake is excessive because the allowable displacement of the elastic base is exceeded.
• In the case of high piers, the rigidity of the columns is small and most of the displacement occurs in the columns. If everything must be accommodated by elastic struts, it becomes unstable. Occurs when

Sliding elastic base

• Bridge support system applicable to multi-span continuous BEAM bridges
• In the drawing direction, the elastic base does not undergo shear deformation and accepts displacement on the sliding surface.
• In the direction perpendicular to the transverse axis, the elastic pedestal is designed to undergo shear deformation.

Compressive strength test

Full-step test