Structural support (1) including a first support portion (2) delimiting at least one containment compartment (4, 4′); a second support portion (6) at least partly in front of the containment compartment (4, 4′); and a sliding element (4), housed in the containment compartment (4, 4′) and interposed between the first (2) and the second (6) support portion. The sliding element (8) substantially consists of a thermo-processable fluoro-polymer with a melt-mass flow rate—according to the ISO 1133-1:2011 standard—of less than 5.0 grams/10 minutes, for example under 3.0 grams/10 minutes.

Bearing assemblies, bearing components and related methods are provided for heavy load applications. In one embodiment, a bearing assembly includes a first bearing apparatus having a base member and a first plurality of polycrystalline diamond compacts (PDCs) on a first surface of the base member, the first plurality of PDCs defining a first collective bearing surface. A second bearing apparatus is configured to engage and slide over the first collective bearing surface. the second bearing apparatus may include a second plurality of PDCs defining a second collective bearing surface. The collective bearing surfaces may be configured to be substantially planar or substantially arcuate. Such bearing assemblies may be implemented in, for example, bridges, roadways, buildings, railways and other structures and machines that may require heavy load bearing support.

A laminated sliding member 1 includes a base body 4 having one flat surface 3 which is circular in a plan view and a solid lubricant layer 5 adhered to the flat surface 3 of the base body 4 and having a sliding surface 2 which is circular in a plan view.

The present invention relates generally to structural bearing assemblies and to methods to make same. In one embodiment, the present invention relates to structural bearing assemblies designed for bridges. In another embodiment, the present invention relates to structural bearing assemblies designed for bridges that are more easily replaced when necessary.

The present invention relates to a structural sliding bearing 210 for connecting a first structure part to a second structure part. The structural sliding bearing 210 has a bearing base 212 connectable to the first structure part, a sliding plate 216 connectable to the second structure part, and an intermediate bearing part 214 disposed between the bearing base 212 and the sliding plate 216, wherein a primary sliding surface 226 of the structural sliding bearing 210 is disposed between the intermediate bearing part 214 and the sliding plate 216. The primary sliding surface 226 has at least two partial sliding surfaces 228A and 228B, each arranged in sliding planes 230A and 230B angled relative to one another, the sliding planes 230A and 230B meeting at a common line of intersection S that forms an axis of movement A of the structural sliding bearing 210 along which the sliding plate 216 can move. The two sliding planes 230A and 230B include a first angle α, the first angle α being selected such that no gap occurs in the area of the primary sliding surface 226 when the structural sliding bearing 210 is in use. Furthermore, the invention relates to a structural bearing system 700 in which the advantageous principle of the structural sliding bearing 210 is applied.

A wedge-shaped pushing device for bridge and construction method thereof includes a base, a lifter and a pushing mechanism. The top of the base has a platform with a wedge-shaped block; the wedge-shaped block has a top side formed into an upper slope; the top of the lifter has a pad; the pushing mechanism has an upper wedge-shaped seat, hydraulic cylinders and a support seat; the upper wedge-shaped seat has top with a cushion and a bottom formed into a lower slope; the hydraulic cylinder has a piston rod; the support seat has a top fixed and combined with the hydraulic cylinder by a pivot. By the wedge-shaped pushing device, the box girder can be displaced and pushed to achieve the effects of lowering the construction cost, facilitating the installation, and improving the stability and safety of the displacement and pushing of the box girder.

Support for decks (3) of bridges, viaducts and the like, comprising a first and a second surface (6, 7), for the application and countering of a load, respectively, which can slide relatively and an anti-friction bearing (8) arranged between said surfaces (6, 7), the bearing (8) comprising at least one electrical contact (11) which is embedded therein at a predetermined distance from at least one of said opposing sides (9, 10) and can close or open an alarm circuit (15) as a result of predetermined wear and tear of said bearing (8).

A first arch and second arch are produced in respective first and second structural portions. Each arch has a tie rod interconnecting the foot points of the arch, where a foot point of the arch is displaceably mounted. Each tie rod is tensioned so that horizontal forces caused by the weight of the arches at the foot points of the corresponding arch, are taken up by the tie rods. A first end point of the tie rod of the first arch is connected in a force-fitting manner to the first abutment, and a second end point of the tie rod of a last arch is connected in a force-fitting manner to the second abutment. The remaining adjoining end points of the tie rods are connected to one another in a force-fitting manner, and corresponding foot points of the arches are connected in a force-fitting manner to the abutments and pillar.

An arch foot maintaining device includes a plurality of supporting structures, and the supporting structure includes a base, two base supporting seats, a hydraulic jack, a roller, and a roller supporting seat. The base is a cuboid with equal length and width, a through hole running through side surfaces of the base is provided on the base. A vertical guide groove is provided on each of the two base supporting seats. The roller supporting seat is U-shaped and located between the two base supporting seats, and the roller is rotatably supported in the roller supporting seat. Two ends of a central axis of the roller are respectively located in the two guide grooves, the hydraulic jack is disposed within the base, and a top of the hydraulic jack abuts against a bottom of the roller supporting seat.

The invention discloses an arch foot maintaining device and a maintenance method for achieving multi-degree-of-freedom displacement of an arch foot. The device includes a plurality of supporting structures, and the supporting structure includes a base (1), two base supporting seats (7), a hydraulic jack (2), a roller (3), and a roller supporting seat (4). The base (1) is a cuboid with equal length and width, a through hole running through side surfaces of the base (1) is provided on the base (1). A vertical guide groove is provided on each of the two base supporting seats (7). The roller supporting seat (4) is U-shaped and located between the two base supporting seats (7), and the roller (3) is rotatably supported in the roller supporting seat (4). Two ends of a central axis (14) of the roller (3) are respectively located in the two guide grooves, the hydraulic jack (2) is disposed within the base (1), and a top of the hydraulic jack (2) abuts against a bottom of the roller supporting seat (4). A plurality of supporting structures are freely combined to form an arch foot maintaining device, and an arch foot is sectioned and lifting/lowering of each roller (3) is controlled to achieve translation and rotation of the arch foot. The invention is simple in structure, flexible, convenient in operation, and highly adaptable, and therefore may be widely applied in arch foot maintenance and strengthening.