Abstract: A work platform assembly is modular in construction so as to be configurable according to the configuration and size, particularly width, requirements of each bridge and to metal surfaces thereof which are to be reconditioned by abrasive stripping and recoating. The assembled platform is suspendable at each end by suspension frame assemblies which are rollable along the parapets of the bridge for repositioning the platform assembly, with the suspension assembly being adjustable to various configurations of parapets. An adjustable curtain frame enables sealed enclosure of bridge surfaces to be treated and optimum access of workers to those surfaces during the treatment. Airborne residue is evacuated by vacuum for subsequent disposal in a manner which does not contaminate the environment, while heavier residue and spent abrasive grit is collected and positively moved off of the platform assembly for subsequent, environmentally safe separation and reconstitution of the grit for reuse.

Abstract: A work platform assembly and trailer system for transporting and vertically positioning the work platform assembly adjacent bridge deck surfaces to be treated. The trailer includes front and rear lifting assemblies for supporting, and being removably attached to, an end of the work platform assembly. The lifting assemblies include vertically oriented lifting cylinders for vertically positioning the work platform assembly immediately adjacent the bridge deck surfaces to be treated. The trailer includes wheels and a hitch to facilitate the transport of the work platform assembly to the site of the bridge deck. The work platform assembly is modular in construction so as to be configurable according to the configuration and size, particularly width, requirements of each bridge and to metal surfaces thereof which are to be reconditioned by abrasive stripping and recoating.

Abstract: A worker platform assembly is modular in construction so as to be configurable according to the configuration and size, particularly width, requirements of each bridge and to metal surfaces thereof which are to be reconditioned by abrasive stripping and recoating. The assembled platform is suspendable at each end by suspension frame assemblies which are rollable along the parapets of the bridge for repositioning the platform assembly, with the suspension assembly being adjustable to various configurations of parapets. An adjustable curtain frame enables sealed enclosure of bridge surfaces to be treated and optimum access of workers to those surfaces during the treatment. Airborne residue is evacuated by vacuum for subsequent disposal in a manner which does not contaminate the environment, while heavier residue and spent abrasive grit is collected and positively moved off of the platform assembly for subsequent, environmentally safe separation and reconstitution of the grit for reuse.