Bridge steel pipe arch rib integral lifting and anchoring device and construction method thereof
A steel tube arch rib and overall lifting technology, applied in the direction of bridges, bridge construction, bridge forms, etc., can solve the problem of not being able to achieve effective and stable overall lifting of the arch rib, and achieve enhanced local stability, good economic benefits, and reduced material consumption. Effect
Active Publication Date: 2022-08-05
GUANGXI ROAD CONSTR ENG GRP CO LTD
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Problems solved by technology
[0010] Although the above literature also mentions some technologies for lifting the arch ribs of arch bridges, it cannot effectively and stably lift the arch ribs as a whole, and maintain its shape and stress stability.
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Embodiment 1
[0040] An integral lifting and anchoring device for a bridge steel tube arch rib. A number of horizontal anchoring upper chord pipes 41 are arranged between the upper chord tubes 31 on both sides of the arch rib, and horizontal anchoring lower chord tubes 42 are arranged between the lower chord tubes 33 on both sides of the corresponding position. , the upper anchoring pipe 41 and the lower anchoring pipe 42 are connected by a plurality of vertical connecting rods 5; the middle point of the upper anchoring pipe 41 is provided with a vertical sling hole, and the side wall of the sling hole is a steel sleeve 44 , the sling 1 passes through the sling hole and is anchored at the bottom of the hole through the anchor 6 to achieve suspension, and the anchoring lower pipe 42 is a tie rod anchoring member.
[0041] A cushion block 43 is arranged at the bottom of the sling hole, and the sling hole penetrates the center of the cushion block 43 .
[0042] The inner cavity of the anchorin...
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An integral lifting and anchoring device for a bridge steel pipe arch rib is characterized in that a plurality of horizontal anchoring upper decoration pipes are arranged between upper chord pipes on the two sides of the arch rib, horizontal anchoring lower decoration pipes are arranged between lower chord pipes on the two sides in the corresponding positions, and the anchoring upper decoration pipes and the anchoring lower decoration pipes are connected through a plurality of vertical connecting rods; a vertical sling hole is formed in the middle point of the anchoring upper lacing tube, a steel sleeve is arranged on the side wall of the sling hole, a sling penetrates through the sling hole and is anchored at the bottom of the sling hole to achieve suspension, and the anchoring lower lacing tube is a tie bar anchoring component. The lacing tubes are additionally arranged to serve as a sling anchoring structure for integrally lifting the arch rib of the steel tube arch bridge, the structure is simple, stress is definite, the lacing tubes are filled with high-strength concrete, the local stability of structural members is enhanced, and member stress is reduced; the upper and lower lacing pipes are connected through the connecting rods, and the overall characteristics of the arch rib are fully exerted.
Description
technical field [0001] The invention relates to the technical field of bridge construction, in particular to an integral lifting and anchoring device for a bridge steel pipe arch rib and a construction method thereof. Background technique [0002] Arch bridge is one of the basic forms of bridge structure and has a wide range of applications. The CFST arch bridge is filled with concrete in the arch-ribbed steel tube. Due to the radial constraint of the steel tube, the expansion of the compressed concrete is limited, and the concrete is in a state of three-way compression, thereby significantly improving the compressive strength of the concrete. At the same time, the steel pipe has the functions of the longitudinal main reinforcement and the horizontal hoop, and can also be used as a construction template to facilitate concrete pouring. During the construction process, the steel pipe can be used as a rigid load-bearing skeleton. Its welding work is simple and the lifting weigh...
Claims
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IPC IPC(8): E01D21/00E01D4/00
CPCE01D21/00E01D4/00Y02A30/30
Inventor 张坤球陈家海王长兵黄云李志刚朱洪骏李雪松高雪山蒋敏姚青云
Owner GUANGXI ROAD CONSTR ENG GRP CO LTD