A work gondola apparatus is provided with: a work cage into which a worker boards; equipment mounting parts disposed on both outer sides of the work cage; battery-driven elevating/lowering mechanisms which are mounted to the respective equipment mounting parts and which elevate/lower the work cage to a working location by means of cables that are being suspended; and batteries for driving the respective elevating/lowering mechanisms.

A joint form is positioned in a damaged expansion joint to allow both sides of the joint to be repaired at the same time. The joint form remains as a permanent part of the repair, which avoids the time consuming conventional process of removing temporary forms, cleaning the repaired surfaces, and inserting an elastomeric seal into the expansion joint. Type-0 joint forms include a block-seal laminate including a foam block layer (e.g., closed-cell polyethylene) laminated to an upper elastomeric seal layer (e.g., closed-cell neoprene) without a stiffener board. Type-1 joint forms include a block-seal laminate with a stiffener board (e.g., fiberglass reinforced plastic or FRP) adhered to one side of the block-seal laminate. Type-2 joint forms include a pair of block-seal laminate panels on either side of a central stiffener board bonded to one side laminated to an upper seal layer. Joint forms may also be utilized to seal undamaged expansion joints.

A joint form is positioned in a damaged expansion joint to allow both sides of the joint to be repaired at the same time. The joint form remains as a permanent part of the repair, which avoids the time consuming conventional process of removing temporary forms, cleaning the repaired surfaces, and inserting an elastomeric seal into the expansion joint. Type-0 joint forms include a block-seal laminate including a foam block layer (e.g., closed-cell polyethylene) laminated to an upper elastomeric seal layer (e.g., closed-cell neoprene) without a stiffener board. Type-1 joint forms include a block-seal laminate with a stiffener board (e.g., fiberglass reinforced plastic or FRP) adhered to one side of the block-seal laminate. Type-2 joint forms include a pair of block-seal laminate panels on either side of a central stiffener board bonded to one side laminated to an upper seal layer. Joint forms may also be utilized to seal undamaged expansion joints.

A finger joint having a bridging cover plate, which enables a steel plate having a thickness much smaller than that of a conventional finger to be used and allows the vertical rotation of an upper bridge structure. The finger joint includes: a bridging cover plate installed on a first structure and supported to a second structure across a gap so as to support a load of a vehicle passing over the gap, and configured to allow relative movement between the first structure and the second structure in a direction in which the distance of the gap changes; a first finger unit connected to the bridging cover plate; and a second finger unit installed on the second structure so as to allow relative movement relative to the first finger unit in a direction in which the distance of the gap changes.

A finger joint having a bridging cover plate, which enables a steel plate having a thickness much smaller than that of a conventional finger to be used and allows the vertical rotation of an upper bridge structure. The finger joint includes: a bridging cover plate installed on a first structure and supported to a second structure across a gap so as to support a load of a vehicle passing over the gap, and configured to allow relative movement between the first structure and the second structure in a direction in which the distance of the gap changes; a first finger unit connected to the bridging cover plate; and a second finger unit installed on the second structure so as to allow relative movement relative to the first finger unit in a direction in which the distance of the gap changes.

An expansion joint for building suitable to connect structural elements of a building structure to fill a space between the structural elements themselves is provided, in which the expansion joint is suitable for a connection with one of the structural elements in a longitudinal direction, and wherein the expansion joint has a plate body and a deformable body flanked or adjacent to the plate body along the longitudinal direction. The deformable body includes two superimposed and structurally independent portions connected to each other in a removable way, or configured for a removable connection with one another.

An expansion joint for building suitable to connect structural elements of a building structure to fill a space between the structural elements themselves is provided, in which the expansion joint is suitable for a connection with one of the structural elements in a longitudinal direction, and wherein the expansion joint has a plate body and a deformable body flanked or adjacent to the plate body along the longitudinal direction. The deformable body includes two superimposed and structurally independent portions connected to each other in a removable way, or configured for a removable connection with one another.

An expansion joint sealing system for bridging and sealing a gap located between two spaced-apart structural deck members. The expansion joint sealing system includes an elastomeric seal member and a substantially rigid plate member. The elastomeric seal member is fixedly attached to an underlying structural deck member and is able to expand and contract in the longitudinal direction in relation to the traffic direction across the expansion joint. The rigid plate is not fastened to the elastomeric seal member with mechanical fasteners or other fastening means, but is slidingly engaged with the elastomeric seal member through an elongated guide member. As the rigid plate member is not fastened to the elastomeric seal member, it is able to move along a guide member in a direction that is transverse to the direction of traffic across the expansion joint.

An expansion joint sealing system for bridging and sealing a gap located between two spaced-apart structural deck members. The expansion joint sealing system includes an elastomeric seal member and a substantially rigid plate member. The elastomeric seal member is fixedly attached to an underlying structural deck member and is able to expand and contract in the longitudinal direction in relation to the traffic direction across the expansion joint. The rigid plate is not fastened to the elastomeric seal member with mechanical fasteners or other fastening means, but is slidingly engaged with the elastomeric seal member through an elongated guide member. As the rigid plate member is not fastened to the elastomeric seal member, it is able to move along a guide member in a direction that is transverse to the direction of traffic across the expansion joint.

A joint form is positioned in a damaged expansion joint to allow both sides of the joint to be repaired at the same time. The joint form remains as a permanent part of the repair, which avoids the time consuming conventional process of removing temporary forms, cleaning the repaired surfaces, and inserting an elastomeric seal into the expansion joint. Type-0 joint forms include a block-seal laminate including a foam block layer (e.g., closed-cell polyethylene) laminated to an upper elastomeric seal layer (e.g., closed-cell neoprene) without a stiffener board. Type-1 joint forms include a block-seal laminate with a stiffener board (e.g., fiberglass reinforced plastic or FRP) adhered to one side of the block-seal laminate. Type-2 joint forms include a pair of block-seal laminate panels on either side of a central stiffener board bonded to one side laminated to an upper seal layer. Joint forms may also be utilized to seal undamaged expansion joints.