Tarpaulin for stay cable and beam end
A technology of cable-stayed beams and waterproof caps, applied in the field of cable-stayed cables, which can solve the problem that the embedded pipe and the cable body of the cable-stayed cables cannot reach a concentric state, and the silicone rubber sealing strip and sealant cannot provide waterproof effect, which affects cable-stayed cables. Solve problems such as the use effect of the cable to achieve the effect of improving durability
Active Publication Date: 2014-04-23
JIANGSU FASTEN STEEL CABLE CO LTD +1
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Problems solved by technology
However, in the actual construction process of the bridge, the pre-embedded pipe and the cable body of the stay cable cannot reach the ideal concentric state, and the stay cable will also vibrate due to the vehicle load during operation, so the silicone rubber sealing strip and sealant cannot be used. to the waterproof effect
In actual use, it is found that there is a large amount of water in the embedded pipe at the end of the stay cable beam, which causes the anchor head of the stay cable to be soaked in water, which affects the use effect of the stay cable
Method used
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[0025] see figure 1 , the present invention relates to a cable-stayed cable beam end waterproof cap, which is used to prevent moisture from entering the waterproof cover 2, and improve the durability of the connection transition between the cable-stayed cable and the beam end. The embedded pipe 11 is connected with the embedded pipe 11, and the small end is connected with the cable body 1, and is matched with the outer surface of the cable body 1. The small end of the waterproof cover 2 is connected with the cable body 1. There is a gap between them, and the third sealing strip 7 is filled in the gap.
[0026] see figure 2 , the present invention includes a waterproof cap body 3, the waterproof cap body 3 is a Hafur structure and made of stainless steel or carbon steel material, the small end of the waterproof cap body 3 is closely attached to the cable body 1, and the waterproof cap body 3 The front end of the small end is provided with a first groove 8, and a second seali...
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The invention relates to a tarpaulin for a stay cable and a beam end. The tarpaulin comprises a tarpaulin body (3), wherein a small end of the tarpaulin body (3) and a cable body (1) are fitted closely, the front end of the small end of the tarpaulin body (3) is provided with a first groove (8), the middle part of the small end of the tarpaulin body (3) is provided with a second groove (9), a seal ring (5) is arranged in the second groove (9), a large end of the tarpaulin body (3) is provided with a third groove (10), and a first seal strip (4) is arranged in the third groove (10). The first seal strip, the seal ring and a second seal strip of the tarpaulin for the stay cable and the beam end form three defensive lines for preventing moisture from entering a water shield, pre-compression deformation generated by the seal ring is used to adapt to the clearance generated by the vibration of the stay cable and the like, dynamic adaptive sealing effects of the cable body of the stay cable and the clearance is realized, and the durability of connecting transition part of the stay cable and the beam end is improved.
Description
technical field [0001] The invention relates to a stay cable and belongs to the technical field of bridge engineering. Background technique [0002] Cable-stayed cables are the main load-bearing components of cable-stayed bridges, and their durability directly affects the safety, economy and reliability of cable-stayed bridges. The durability of the stay cables mainly includes the durability of the stay cable system, the durability of the connection transitional parts between the stay cables and the tower ends and the stay cables and the beam ends. In recent years, the durability of the stay cable system has been effectively guaranteed by measures such as hot-extruding durable high-density polyethylene sheaths outside the steel wire bundles in the factory, and pouring sealing filler materials into the anchorage. [0003] For the beam end of the cable-stayed cable, a waterproof cover is generally provided. One end of the waterproof cover is connected to the embedded pipe of ...
Claims
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IPC IPC(8): E01D19/16
Inventor 张少锦宁世伟弋安吴琼邓志华薛花娟李云江周祝兵王勇
Owner JIANGSU FASTEN STEEL CABLE CO LTD