Cable hanging system for inclined stay cable of bridge and cable hanging method for inclined stay cable of bridge
A technology for stay cables and bridges, applied in the directions of bridges, bridge parts, bridge construction, etc., can solve the problem of easy damage of the outer layer PE sheath of the stay cables, and achieve the effect of reducing the difficulty of construction
Active Publication Date: 2014-04-02
中铁大桥局集团第八工程有限公司
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Problems solved by technology
Under normal circumstances, the friction force between the stay cable beam end and the stay cable should be controlled within 20-30t using the Huff clamp. When the traction force is greater than the above value, the outer PE sheath of the stay cable is easily damaged.
Method used
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Embodiment Construction
[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0047] like figure 1As shown in the bridge stay cable hanging system of the present invention, the two ends of the hanging stay cable 1 are respectively fixed on the beam body and the bridge tower. An upper hoisting point 2 is arranged at the middle position of the hanging stay cable 1, and a pulley group 3 is connected to the upper hoisting point 2. At the same time, the middle area of the stay cable 8 to be hung is also provided with a lower lifting point 20 , and the lower lifting point 20 is connected to the pulley block 3 . The beam body is also provided with a beam surface winch 4 , and the beam surface winch 4 is connected to the pulley block 3 . At the same time, the upper lifting point 2 and the lower lifting point 20 are detachably fixed on the already hung stay cable 1 and the stay cable 8 to be hung.
[0048] Please also refer...
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A cable hanging system for an inclined stay cable of a bridge is characterized by comprising a bridge body, a bridge tower, a hung inclined stay cable, and a to-be-hung inclined stay cable, wherein bridge end traction equipment and a bridge surface windlass are arranged on the bridge body; tower end traction equipment is arranged on the bridge tower; two ends of the hung inclined stay cable are connected to the bridge body and the bridge tower respectively; an upper lifting hanging point is arranged on the hung inclined stay cable; a tackle pulley is connected to the lifting hanging point; a lower lifting hanging point is arranged on the to-be-hung inclined stay cable; two ends of the to-be-hung inclined stay cable are connected with the bridge end traction equipment and the tower end traction equipment; and the lower lifting hanging point on the to-be-hung inclined stay cable is connected with the tackle pulley. As the lifting point is arranged on the hung inclined stay cable to lift the to-be-hung inclined stay cable, traction force during cable hanging is reduced, which protects the outer PE (Poly Ethylene) sheathes of the inclined stay cables from being damaged easily.
Description
technical field [0001] The invention relates to a bridge cable-stayed cable system and a bridge cable-stayed cable method, which are applied to the installation of cable-stayed cables of large-span cable-stayed bridges. Background technique [0002] With the continuous development of bridge technology, cable-stayed bridges are widely used as one of the main types of long-span bridges, and their construction spans are increasing. The increase of this will increase the force of the stay cable to wear the cap, and the difficulty of on-site construction and the investment of equipment will continue to increase. [0003] The construction method of conventional stay cables is to use tower cranes or tower cranes to lift the stay cables to a specified height, connect and fix the anchor cups at the tower end of the stay cables with the traction equipment, and then use the beam surface traction equipment to lift the stay cables along the The beam surface is pulled to the designated p...
Claims
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IPC IPC(8): E01D19/16E01D21/00
Inventor 代皓张瑞霞姚发海涂满明李军堂张爱花
Owner 中铁大桥局集团第八工程有限公司