Open-hole thin steel plate and ultra-high-performance concrete composite structure and construction method thereof

Abstract

The invention discloses an open-hole thin steel plate and ultra-high-performance concrete composite structure. The open-hole thin steel plate and ultra-high-performance concrete composite structure comprises a plurality of thin steel plates distributed at intervals, three or more limiting parts and ultra-high-performance concrete, wherein a filling space is formed by all the thin steel plates, the height of the filling space is equal to the distance between the two thin steel plate located on the outermost sides, and the projection plane of the filling space is equal to the union set of frontal projection planes of all the thin steel plates; and meanwhile, each thin steel plate is provided with a plurality of small holes located in the filling space; each limiting part is arranged on the corresponding thin steel plate in a penetrating mode, the projection of every three limiting parts on the same thin steel plate is not collinear, and the filling space is filled with the ultra-high-performance concrete. The open-hole thin steel plates have the orientation constraint effect and the cracking resisting effect on disorderly-distributed steel fiber in the ultra-high-performance concrete, so that the cracking strength and ductility of the open-hole thin steel plate and ultra-high-performance concrete composite structure are improved by a large margin.

Description

technical field [0001] The invention relates to the application field of construction engineering, in particular to a perforated thin steel plate-ultra-high-performance concrete composite structure and a construction method thereof. Background technique [0002] Slab is a commonly used structural form in the field of construction engineering. It usually includes reinforced concrete slab, profiled steel plate-concrete composite slab, etc. It is widely used in civil buildings, commercial centers, office buildings, bridge decks, etc. For the existing reinforced concrete slabs and profiled steel plate-concrete composite slabs, the slabs are easy to crack, poor in durability, weak in earthquake resistance, and do not have anti-blast performance. In protective engineering, commonly used reinforced concrete structures will be fragmented under blast loads, and the fragments will cause secondary damage. Therefore, it is necessary to improve the mechanical properties of slabs in the f...

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Problems solved by technology

[0003] At the same time, for applications in the field of construction engineering where the size or weight is limited, the board is also required to be small in size or light in weight. In this case, when the same material is used for the board, its mechanical properties will also be weakened.

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