Popular Specifications of High Damping Rubber Bearing

High damping rubber bearing is one of most important seismic isolation rubber bearing. It has similar structure with lead rubber bearing. Here are detailed specifications and drawings of high damping rubber bearing, including rectangular and round shapes in fixed and sliding types.

A side view of HDR Ⅰ rectangular fixed rubber bearing installation.
A top view of HDR Ⅰ rectangular fixed rubber bearing installation.

Note:

  • G8—Shear Modulus is 8
  • G10—Shear Modulus is 10
  • Ht—Overall Height of Bearing Pad
  • H—Overall Height of Support
  • P—Bearing Capacity
  • X—Allowable Shear Displacement
  • Qy—Yield Force
  • K1—First Stiffness
  • K2—Second Stiffness
  • Kh—Horizontal Equivalent Stiffness
  • ξ—Equivalent Damping Ratio
  • Kv—Compression Stiffness
  • g—Embedded Parts Weight
  • X—Shear Displacement of Shear Strain Tolerance
  • Shear Displacement = Shear Strain × Rubber Thickness
  • Design Shear Strain γ0=1.0
  • Test Shear Strain γs=1.5
  • Shear Strain Tolerance γe = 2.0
  • Shear Strain Limitation γu = 3.0
A side view of HDR Ⅰ round fixed rubber bearing installation.
A top view of HDR Ⅰ round fixed rubber bearing installation.

Note:

  • G8—Shear Modulus is 8
  • G10—Shear Modulus is 10
  • Ht—Overall Height of Bearing Pad
  • H—Overall Height of Support
  • P—Bearing Capacity
  • X—Allowable Shear Displacement
  • Qy—Yield Force
  • K1—First Stiffness
  • K2—Second Stiffness
  • Kh—Horizontal Equivalent Stiffness
  • ξ—Equivalent Damping Ratio
  • Kv—Compression Stiffness
  • g—Embedded Parts Weight
  • X—Shear Displacement of Shear Strain Tolerance
  • Shear Displacement = Shear Strain × Rubber Thickness
  • Design Shear Strain γ0=1.0
  • Test Shear Strain γs=1.5
  • Shear Strain Tolerance γe = 2.0
  • Shear Strain Limitation γu = 3.0
A side view of HDR Ⅱ rectangular fixed rubber bearing installation.
A top view of HDRⅡ rectangular fixed rubber bearing installation.

Note:

  • G8—Shear Modulus is 8
  • G10—Shear Modulus is 10
  • Ht—Overall Height of Bearing Pad
  • H—Overall Height of Support
  • P—Bearing Capacity
  • X—Allowable Shear Displacement
  • Qy—Yield Force
  • K1—First Stiffness
  • K2—Second Stiffness
  • Kh—Horizontal Equivalent Stiffness
  • ξ—Equivalent Damping Ratio
  • Kv—Compression Stiffness
  • g—Embedded Parts Weight
  • X—Shear Displacement of Shear Strain Tolerance
  • Shear Displacement = Shear Strain × Rubber Thickness
  • Design Shear Strain γ0=1.0
  • Test Shear Strain γs=1.5
  • Shear Strain Tolerance γe = 2.0
  • Shear Strain Limitation γu = 3.0
A side view of HDR Ⅱ round fixed rubber bearing installation.
A top view of HDR Ⅱ round fixed rubber bearing installation.

Note:

  • G8—Shear Modulus is 8
  • G10—Shear Modulus is 10
  • Ht—Overall Height of Bearing Pad
  • H—Overall Height of Support
  • P—Bearing Capacity
  • X—Allowable Shear Displacement
  • Qy—Yield Force
  • K1—First Stiffness
  • K2—Second Stiffness
  • Kh—Horizontal Equivalent Stiffness
  • ξ—Equivalent Damping Ratio
  • Kv—Compression Stiffness
  • g—Embedded Parts Weight
  • X—Shear Displacement of Shear Strain Tolerance
  • Shear Displacement = Shear Strain × Rubber Thickness
  • Design Shear Strain γ0=1.0
  • Test Shear Strain γs=1.5
  • Shear Strain Tolerance γe = 2.0
  • Shear Strain Limitation γu = 3.0
A side view of LNR rectangular sliding rubber bearing installation.
A top view of LNR rectangular sliding rubber bearing installation.

Note:

  • Ht—Overall Height of Bearing Pad
  • H—Overall Height of Support
  • P—Bearing Capacity
  • Q—Sliding Friction Under Design Load
  • K1—Stiffness Before Sliding
  • K2—Stiffness After Sliding
  • Kv—Compression Stiffness
  • g—Embedded Parts Weight
  • X—Shear Displacement of Shear Strain Tolerance
A side view of LNR rectangular sliding rubber bearing installation.
A top view of LNR rectangular sliding rubber bearing installation.

Note:

  • Ht—Overall Height of Bearing Pad
  • H—Overall Height of Support
  • P—Bearing Capacity
  • Q—Sliding Friction Under Design Load
  • K1—Stiffness Before Sliding
  • K2—Stiffness After Sliding
  • Kv—Compression Stiffness
  • g—Embedded Parts Weight
  • X—Shear Displacement of Shear Strain Tolerance