Fully-prefabricated pile top crown beams capable of being recycled, and construction method thereof

Abstract

The invention relates to the technical field of pile top crown beams, and discloses fully-prefabricated pile top crown beams capable of being recycled, and a construction method thereof. The crown beams are arranged at the tops of supporting piles, and are sequentially spliced to connect the adjacent supporting piles; the crown beams are provided with anchorage holes corresponding to connecting anchor cables pre-buried in the tops of the supporting piles, and the connecting anchor cables vertically upwards penetrate through the anchorage holes and are locked and fixed through anchorage devices; and the two ends of the crown beams are provided with connecting convex parts and connecting concave parts, wherein the connecting convex parts and the connecting concave parts are mutually matched,and the adjacent crown beams are clamped and aligned through the connecting convex parts and the connecting concave parts. Cast-in-place construction is avoided, mounting saves the time and labor, the construction efficiency is high, environmental protection is achieved, the fully-prefabricated pile top crown beams can be reused after being recycled, and the construction cost is low.

Description

technical field [0001] The invention relates to the technical field of pile top crown beams, in particular to a recyclable fully prefabricated pile top crown beam and a construction method thereof. Background technique [0002] The crown beam is a reinforced concrete continuous beam set on the surrounding support of the foundation pit or on the top of the enclosure structure. One of its functions is to connect all the pile foundations together, such as bored piles, rotary excavation piles, etc. The top edge of the shaft collapses, and the second is to bear the horizontal squeeze force and vertical shear force of the steel support or reinforced concrete support through the corbel. [0003] Most of the traditional crown beams are cast-in-place structures, or a combination of semi-prefabricated and semi-cast-in-place structures; for cast-in-place structures, the workload of the entire construction process is heavy, and it is necessary to set up formwork and tie steel bars. Not ...

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Problems solved by technology

[0005] The technical problem to be solved is: the traditional cast-in-place crown beam, the workload of the whole construction process is heavy, need to support formwork, tie steel bars, not only the construction cost is high, the cast-in-place construction volume is large, the environment pollution is serious, and a lot of human resources are required , time-consuming and labor-intensive, greatly prolonging the construction period; the combination of semi-prefabricated and semi-cast-in-place structures still requires a large amount of cast-in-site construction, and there is a large room for improvement in construction efficiency, and the crown beams are still disposable and cannot be recycled. Utilization, not only did not reduce the cost of crown beam construction, but also increased the construction process, low practical value

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