A cable-stayed bridge includes a pylon, a deck, and a cable stay. The pylon may include a passage formed therethrough. The cable-stayed bridge includes a polymer blend cradle extending through the passage of the pylon. The cable stay is coupled to the deck at each end of the cable stay and passes through the passage through the pylon via the polymer blend cradle.

A damping system for a cable disposed within an upper pipe and a lower pipe includes a damper plate assembly connected to the upper pipe, a slider ring connected to and/or supported by the lower pipe, the slider ring having a hole in which the cable is arranged; and a shroud surrounding the damping system at a position where the upper pipe is adjacent to the lower pipe, such that the damper plate assembly and the slider ring are covered by the shroud. In such damping systems, the damper plate assembly and the slider ring are in contact with each other such that the transverse movement of the upper pipe relative to the lower pipe generates a frictional force to reduce an amplitude of the transverse movement of the upper pipe relative to the lower pipe.

The invention relates to a damping arrangement (100) for a cable (102) extending in a tensioned manner from an anchorage (108), said damping arrangement (100) comprising a rigid damping action transfer device (112) which is positively connected to the cable (102) at a predetermined distance (L1) from said anchorage (108), and at least one damping device (110) extending in a damping manner between said damping action transfer device (112) and a constructional element (106) rigidly connected to said anchorage (108), and connected to said damping action transfer device (112) at a further predetermined distance (L2) from said anchorage (108), said further predetermined distance (L2) being shorter than said predetermined distance (L1).

The present invention relates to an armoury assembly (100) for the protection of a structural material (115) and/or load-carrying element (85) having a longitudinal axis, wherein the armouiy assembly is provided longitudinally surrounding the structural material (115) and/or load-carrying element (85) to be protected, wherein the armouiy assembly (100) comprises at least two different layers, one being an energy-absorption matrix (20), the other layer (10) being made of a metal, an alloy or a fibre reinforced polymer having a thickness less than the energy-absorption matrix (20), wherein two or more longitudinal channels (30) are being provided to the armouiy assembly (100), wherein the channels (30) are substantially parallel to the longitudinal axis of the structural material (115) and/or the load-carrying element (85).

A structural cable of a construction work. The structural cable including a bundle of load-bearing tendons, a first sheath containing the bundle of tendons, a second sheath arranged around the first sheath, the second sheath comprising windows, and a plurality of light-radiating modules configured to radiate light, each light-radiating module being arranged within the structural cable to radiate light through at least one window outwardly relative to the structural cable.

A structural cable of a construction work. The structural cable including a bundle of load-bearing tendons, a first sheath containing the bundle of tendons, a second sheath arranged around the first sheath, the second sheath comprising windows, and a plurality of light-radiating modules configured to radiate light, each light-radiating module being arranged within the structural cable to radiate light through at least one window outwardly relative to the structural cable.

The invention relates to the technological field of bridge structures, in particular to a long-service-life PWS cable with replaceable sleeve and shielding gas. It consists of wire strands, wrapping tape covering the wire strands, and a sheath arranged outside the wire strands, and is characterized in that the sheath is covered with an outer protective sleeve and shielding gas is filled between the wires in the wire strands. The wire strands of the present invention is completely under protection in a shielding gas environment which effectively avoids the corrosion of the wire strands; the protective sleeve outside the sheath of the PWS cable is a replaceable segmented and fragmented sleeve structure, which is convenient to be replaced and installed, substantially prolonging the service life of the PWS cable system with great promotional value achieved.

The invention relates to the technological field of bridge structures, in particular to a long-service-life PWS cable with replaceable sleeve and shielding gas. It consists of wire strands, wrapping tape covering the wire strands, and a sheath arranged outside the wire strands, and is characterized in that the sheath is covered with an outer protective sleeve and shielding gas is filled between the wires in the wire strands. The wire strands of the present invention is completely under protection in a shielding gas environment which effectively avoids the corrosion of the wire strands; the protective sleeve outside the sheath of the PWS cable is a replaceable segmented and fragmented sleeve structure, which is convenient to be replaced and installed, substantially prolonging the service life of the PWS cable system with great promotional value achieved.

The present disclosure discloses a mid-span axial force-free connecting device for an earth-anchored cable-stayed bridge and a method for mounting same. The mid-span axial force-free connecting device for an earth-anchored cable-stayed bridge includes an externally sleeved large steel box girder and an internally embedded small steel box girder. A plurality of bearing beams are arranged on the inner periphery of the externally sleeved large steel box girder. Transverse spherical bearings or vertical spherical bearings are arranged on the bearing beams. The internally embedded small steel box girder is fixedly supported in the externally sleeved large steel box girder through a plurality of transverse spherical bearings and vertical spherical bearings. In the same section, the transverse spherical bearings are symmetrically arranged, and the vertical spherical bearings are also symmetrically arranged.

The present disclosure discloses a mid-span axial force-free connecting device for an earth-anchored cable-stayed bridge and a method for mounting same. The mid-span axial force-free connecting device for an earth-anchored cable-stayed bridge includes an externally sleeved large steel box girder and an internally embedded small steel box girder. A plurality of bearing beams are arranged on the inner periphery of the externally sleeved large steel box girder. Transverse spherical bearings or vertical spherical bearings are arranged on the bearing beams. The internally embedded small steel box girder is fixedly supported in the externally sleeved large steel box girder through a plurality of transverse spherical bearings and vertical spherical bearings. In the same section, the transverse spherical bearings are symmetrically arranged, and the vertical spherical bearings are also symmetrically arranged.