WBCM was called to the field to respond to damage caused by an over-height vehicle to two MDOT SHA highway bridges. The vehicle had impacted two beams on one bridge and four on the adjacent bridge, twisting and gouging the bottom flange and warping the webs. Following immediate action to shore up the damaged areas, WBCM utilized field laser scanning technology to facilitate remedial repair and analysis efforts.

By utilizing this technology, we were able to collect the laser scan of the damaged beams without the use of access equipment and lane closures in about half the time, saving the client money and without affecting the traveling public. The field-collected scan data was processed into point clouds and meshes representing 3D models, which were dimensionally accurate and georeferenced to MDOT SHA’s coordinate system. These models provided our design engineers with the ability to assess deformations for possible design options, including heat straightening and partial beam replacement. The existing deformed meshes could also be analyzed in finite element software to determine current capacity.

The models allowed us to extract elevations and sections at any point and in any direction, which saved significant plan production time as compared to traditional methods.

Service(s) Provided
LiDAR Mapping