Ejipura flyover crack not major structural defect, says IISc Bengaluru report

Bengaluru: A crack that was detected in the Ejipura flyover during preparatory work is not a major structural defect, an interim report by an Indian Institute of Science (IISc) professor has stated.

The report noted that the flyover’s core structural components remain intact, describing the damage as a localised “punching failure” that can be fixed through standard re-concreting.

The Bruhat Bengaluru Mahanagara Palike (BBMP) had requested Prof JM Chandra Kishen of IISc’s Civil Engineering Department to study the issue after a concrete segment was damaged during girder launching due to a rear trolley wheel failure.

Following the accident, the BBMP engineers were uncertain whether patchwork or full replacement of the girder was needed.

According to the IISc findings, the reinforcing steel, post-tensioning cables and anchor blocks of the girder are unaffected.

The professor has removing the damaged concrete, strengthening reinforcements, and recasting with M50 non-shrink compound concrete.

“The incident, though not critical, clears confusion. We will re-start the work immediately,” said Raghavendra Prasad, chief engineer of BBMP’s road infrastructure division.

The 2.5-km flyover, along the Inner Ring Road linking Hosur Road and Ejipura, is expected to be completed by June next year.