ENERGY DISSIPATION IN STEEL COUPLING BEAMS INVOLVING SPLICE JOINT COUPLED WITH ELASTOMERS

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ENERGY DISSIPATION IN STEEL COUPLING BEAMS
INVOLVING SPLICE JOINT COUPLED WITH ELASTOMERS
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SCOPE

• TO TEST THE SHEAR CAPACITY OF THE FUSE BEAM
  WITHOUT THE USE OF ELASTOMERIC PADS
• TO TEST THE SHEAR CAPACITY OF THE FUSE BEAM USING
  ELASTOMERIC PADS
• TO COMPARE THE ENERGY DISSIPATION CHARACTERISTICS
  OF BOTH THE ABOVE CASES
• TO DETERMINE THE HYSTERETIC RESPONSE (LOAD VS
  DEFORMATION) FOR BOTH THE CASES

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GOALS

• TO ENHANCE THE ENERGY DISSIPATION CHARACTERISTICS
  OF STEEL COUPLING BEAMS.
• TO USE THE GENERATED HYSTERETIC RESPONSES OF THE
  JOINTS TO ESTABLISH SIMPLIFIED ANALYTICAL MODELS
  FOR ANALYSIS OF COMPLETE COUPLED WALL SYSTEM.

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BRIEF DESCRIPTION OF TEST AND TEST SET UP

• STEEL COUPLING BEAM (PRIMARY BEAM) WILL BE JOINED
  AT THE CENTER WITH A FUSE BEAM USING BOLTED
  SPLICING.
• CYCLIC LOADS WILL BE APPLIED WITH THE HELP OF
  ACTUATORS.
• THE APPLIED LOAD WILL BE SUCH THAT THE FUSE WILL
  REACH ITS SHEAR CAPACITY PRIOR TO THE SPLICE ,
  BOLTS OR THE PRIMARY BEAM.
• THE SPLICE JOINT IS DESIGNED AS SLIP CRITICAL TO
  AVOID ANY BEARING ON THE FUSE OR THE PRIMARY BEAM.

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• THE TEST WILL BE REPEATED USING ELASTOMERIC PADS
  SANDWICHED BETWEEN THE SPLICE PLATES.
• THE TEST SETUP WAS DESIGNED KEEPING IN MIND THAT
  THE FUSE SHALL REACH SHEAR CAPACITY PRIOR TO THE
  OTHER COMPONENTS REACHING ANY FAILURE MODE AND
  THAT THERE IS MINIMUM MOMENT ON THE SPLICE.

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THANK YOU
RATNADEEP KUNDU

• SUGGESTIONS ARE WELCOME