Inspection of Bearings and Checking of Camber and Verticality in Kochi Metro Viaduct

Civil / Inspection of Bearings and Checking of Camber and Verticality in the Kochi Metro Viaduct

Inspection of Elastomeric/POT cum PTFE/Spherical and Cylindrical bearings (both horizontal and vertical bearings ) of metro viaduct spans that are in land physically by technician/Engineer, the bearing location is accessed using machanized man lifter i.e MEWP (Mobile elevated working platform), the rate includes manpower, safety arrangements, machineries, providing manlifter. The work includes cleaning of area around the bearings, taking photographs using digital camera, preparation and submission of detailed reports as per the Indian standards and the contract conditions, directions of Engineer -in Charge. Note: 1.Vertical bearing of U girder shall be inspected from the deck slab by removing the shear key cover plate on non-revenue hours(block hrs) 2. Inspection to be carried out in any type of girder spans i.e. I girders, U girders, Composite girders 3. Metro viaduct girders are placed 6 meters to 20 meters above the road level

Inspection of Elastomeric/POT cum PTFE bearings (both horizontal and vertical bearings) of metro viaduct spans that are in land (inaccessible using a man lifter) using a drone camera, the rate includes hiring charges for drone, drone pilot, manpower, safety arrangments, equipments. The work includes providing of soft copies of photos and videos, preparation and submission of detailed reports as per Indian standards, contract conditions, directions of Engineer in charge. Note:1 Inspection to be carried out in any type of girder spans i.e. I girders, U girders, Composite girders. 2. Metro viaduct girders are placed 6 meters to 20 meters above the road level

Inspection of Elastomeric/POT cum PTFE bearings (both horizontal and vertical bearings) of metro viaduct spans that are in waterbodies physically by technician/Engineer, the bearing location is accessed using scaffoldings to be placed above the pile caps, and the pile cap location is accessed using boat and the materials are transported through boat, the rate includes scaffolding, manpower, safety arrangements, machineries, a boat with an operator& fuel. The work includes cleaning of area around the bearings, taking photographs using digital camera, preparation and submission of detailed reports as per the Indian standards, contract conditions, directions of Engineer -in Charge. Note:1 Inspection to be carried out in any type of girder spans i.e. I girders, U girders, Composite girders. 2. Metro viaduct girders are placed 6 meters to 20 meters above the road level

Inspection of Elastomeric/POT cum PTFE bearings (both horizontal and vertical bearings) of metro viaduct spans that are in water bodies using a drone camera, the drone is operated from being in a boat, the rate includes hiring charges for drone, drone pilot, manpower, safety arrangements, equipments, a boat with an operator & fuel. The work includes providing of soft copies of photos and videos, preparation of detailed reports as per Indian standards, contract conditions, directions of Engineer in charge. Note:1 Inspection to be carried out in any type of girder spans i.e. I girders, U girders, Composite girders. 2. Metro viaduct girders are placed 6 meters to 20 meters above the road level

Total station- Checking of camber in viaduct PSC girders and Checking of verticality in Piers using Total station (Laser operated). The camber to be checked with respect to the permanent marker points provided at the bottom face of the girders. The verticality to be checked with respect to the permanent marker points provided on each pier face. Established temporary bench mark shall be referred for the camber and verticality check. The deviation in camber and verticality with respect to the previous years readings/values need to be furnished. The work includes recording of the measurement in registers and in digital format as per the standard formats in IS codes, IRBM and preparation, submission of detailed span wise reports. Note: 1. Details of temporary benchmarks, previous year readings of camber and verticality will be provided by KMRL 2. For the spans that are inaccessible from road level Camber to be marked and checked at the deck slab level 3. Unit per span means one pier and one adjacent span

Supply of new bearings, removal and replacement of existing elastomeric bearings in the metro viaduct structure including all materials, machinery, hydraulic jacks with power pack arrangements, DG, labor, tools, scaffolding, man-lifters, safety arrangements, traffic diversion, and consumables necessary for carrying out the work and as per the instructions of engineer-in-charge and as described in the contract. The new bearings has to match with the existing bearings size and specifications.

Description of Work / Item(s)

Civil / Inspection of Bearings and Checking of Camber and Verticality in the Kochi Metro Viaduct

Schedule B Miscellaneous items based on DSR -2018 ( of CPWD )