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Studies on performance evaluation of reinforcing bar couplers

Client :

Halfen Moment India Private Limited, Mumbai

Scope of the project:

Static tensile tests on parent bar.
Static tensile tests on coupled bars of diameters
Tensile cyclic load testing of coupled bars for 100 cycles in the stress range of 0.05fy to 0.9fy for coupled bars
Low cycle fatigue tests on coupled bars for 10000 cycles under fully reversed stress range of ±173 MPa.
Slip test on coupled bars

Testing of parent bar and coupler bar

Testing of parent bar and coupler bar

Tensile cyclic load testing of coupled bars for 100 cycles in the stress range of 0.05fy to 0.9fy for coupled bars

Tensile cyclic load testing of coupled bars for 100 cycles in the stress range of 0.05fy to 0.9fy for coupled bars

Failure pattern

Failure pattern

Low cycle fatigue tests on coupled bars for 10000 cycles under fully reversed stress range of ±173 MPa

Low cycle fatigue tests on coupled bars for 10000 cycles under fully reversed stress range of ±173 MPa

Results of 16mm dia coupler bar after conducting 100 cycles test

Results of 16mm dia coupler bar after conducting 100 cycles test

Load deflection plot after conducting 100 cycle test

Load deflection plot after conducting 100 cycle test