摘要:
The invention concerns a cylindrical thermal protection sheath (1, 60) for covering a length of an elongated structural element (50), comprising a sandwich-like composite insulation system (10, 12, 16, 18, 20) which has a thermal conductivity lower or equal to 0.11 W/m.DEG C at 800DEG C and a thickness lower than 50 millimeters.
摘要:
Method for mounting a wind turbine on a tower comprising defining support points (101) of a support frame (20) in opposite sides of the tower (10) where winches (204) for lifting a support structure (40) of the nacelle (301) and the rotor with the blades (302) of a wind turbine are mounted. Said nacelle is provided with longitudinal beams (401) and a first and a second gantry (402, 403) that can be displaced for mounting the wind turbine on the tower, stabilized lifting being performed by cables (404, 405) attached to ground anchor jacks (406) and to the ends of the support structure (40) provided the first gantry (402) and second gantry (403).
摘要:
The invention relates to a friction damping device (100) for damping relative movements between a first structural element and a second structural element of a construction, comprising: - a first damping system (110) for damping a first relative movement component and having a first friction surface (111) and a second friction surface (112), - a second damping system (120) for damping a second relative movement component and having a third friction element (121) and a fourth friction element (122). The first friction surface and the second friction surface of the first and the second damping system form a frictional engagement. The first damping system (110) and the second damping system (120) are placed in series.
摘要:
A cable anchorage is described for anchoring a cable, for example a stay cable comprising multiple strands (50), against an axial tension force. Each strand (50) is individually sealed in an individual channel (6) of the anchorage against moisture ingress, and each strand (50) may be removed and replaced individually. A tight-fitting elastic annular seal (26) is fitted into a recess (27) in the channel. The annular seal (26) is inserted from the anchor block end (1) of the anchorage.
摘要:
The present invention concerns a hydromill wheel (5) for excavating a trench in hard rock. The wheel comprises a drum (4) arranged to be rotated about its axis (A, B). The wheel (4) further comprises a plurality of single disc cutters (11) mounted on the periphery of the drum (5), the single disc cutter (11) having a rotatable single cutting disc (11) arranged to come in contact with and crush the rock during excavation. The spacing of the projection of at least some of the cutting discs (11) on the drum axis (A, B) is 20 % to 70 % of the cutting disc diameter.
摘要:
The present invention concerns a method of installing a reinforcement strip in a compacted fill retained by facing element together with the reinforcement strip extending between an anchorage zone and the wall. The anchorage zone is located away from the facing element and separated from the facing element. The method comprises: a) installing (503) the reinforcement strip in the fill by feeding the strip from a first location in the anchorage zone to the wall and looping the strip through a wall connection point back to a second location in the anchorage zone; b) tensioning (513) the strip by pulling the strip to a predetermined tension at the first location and at the second location; and c) anchoring (515) the strip to the fill at the first location and at the second location while keeping the strip under tension.
摘要:
An adjustable Formwork climber apparatus (10) is described which may be used for casting walls having an overhanging portion. The climber is used for supporting both vertical and horizontal formwork on the same supporting brackets. Adjustment mechanisms are provided for positioning or tilting the vertical and horizontal formwork. The adjustable formwork climber can be used both for casting continuous vertical structures, and for structures having an overhanging or protruding portion such as a ring-beam.