Stay cable ground anchor structure
A cable-stayed ground and cable-stayed anchor technology, applied in bridge parts, bridges, buildings, etc., can solve problems such as immaturity, and achieve the effects of low cost, wide use and corrosion avoidance
Active Publication Date: 2017-04-26
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Problems solved by technology
For cable rock anchors, the most critical issue is the anti-corrosion and durability of the cable and its anchorage structure. Although the anti-corrosion and durability of carbon fiber cables are good, the time for large-scale application in engineering is not yet ripe.
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[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] Such as figure 1 The stay cable ground anchor structure shown in —4 includes stay cable 1 and stay cable anchorage 2, and a group cable rock anchor beam 3 of reinforced concrete structure, and the bottom of the group cable rock anchor beam 3 is fixedly connected with an anchor pile The foundation 4, the stay cable 1 passes through the group cable rock anchor beam 3 to connect the stay cable anchorage 2, the part of the group cable rock anchor beam 3 located below the ground line has an anchoring cavity 5 inside, and the stay cable anchorage 2 Set in the anchor cavity 5. The anchoring cavity 5 is connected with a plurality of air inlet passages 6 , and the air inlets of the air inlet passages 6 are opened on the side surface of the group cable rock anchor beam 3 . The cavity bottom 7 of the anchoring cavity 5 is an inclined su...
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The invention discloses a stay cable ground anchor structure. The stay cable ground anchor structure comprises stay cables, a stay cable anchorage device and a group cable rock anchor beam adopting a reinforced concrete structure, wherein anchoring pile foundations are fixedly connected to the bottom of the group cable rock anchor beam; the stay cables penetrate through the group cable rock anchor beam to be connected with the stay cable anchorage device; and an anchoring cavity is formed in the inner part, of the part, located under the ground level, of the group cable rock anchor beam, and the stay cable anchorage device is arranged in the anchoring cavity. When the anchor beam is slightly higher than the ground level, the stay cable anchoring structure is in natural flow air wholly, so that the condition that the stay cable anchoring structure is corroded by humid air is avoided, and the stay cable anchoring structure can be treated as a conventional stay cable. When the stay cables cannot use natural ventilation, the anchoring cavity is formed in the anchor beam, and a drainage slope is arranged in the anchoring cavity, so that water accumulation is avoided; and ventilation holes are formed. According to the stay cable ground anchor structure disclosed by the invention, the problems of the anti-corrosive properties and the durability of the stay cable rock anchor (also called ground anchor) are solved. In accordance with different environment of the rock anchor, specific design is performed, so that the stay cable ground anchor structure has good practical effects, is low in cost and can be widely used.
Description
technical field [0001] The invention relates to the technical field of cable-stayed bridge structures, in particular to a cable-stayed ground anchor structure. Background technique [0002] In order to solve the anti-corrosion problem of the rock anchor of the cable structure, the rock anchor (or ground anchor) suspender of the Aizhai Bridge sometimes uses carbon fiber cables, but the cost of carbon fiber cables is relatively high, and they need to be imported, so they do not have the ability to be used in large quantities. condition. For cable rock anchors, the most critical issue is the anti-corrosion and durability of the cable and its anchorage structure. Although the anti-corrosion and durability of carbon fiber cables are good, the time for large-scale application in engineering is not yet ripe. Contents of the invention [0003] The object of the present invention is to solve the disadvantages of the above-mentioned background technology, and provide a cable-stayed...
Claims
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Login to View More IPC IPC(8): E01D19/14
CPCE01D19/14
Inventor 饶少臣文望青薛照钧
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP